mirror of
https://github.com/chartjs/Chart.js.git
synced 2026-03-05 16:04:03 +01:00
Merge pull request #1205 from etimberg/feature/v2.0-scale-refactor
Move things into the radialLinear scale
This commit is contained in:
Evert Timberg
@@ -220,7 +220,7 @@
|
||||
this.scales = {};
|
||||
|
||||
// Build the x axis. The line chart only supports a single x axis
|
||||
var ScaleClass = Chart.scales.getScaleConstructor(this.options.scales.xAxes[0].type);
|
||||
var ScaleClass = Chart.scaleService.getScaleConstructor(this.options.scales.xAxes[0].type);
|
||||
var xScale = new ScaleClass({
|
||||
ctx: this.chart.ctx,
|
||||
options: this.options.scales.xAxes[0],
|
||||
@@ -231,7 +231,7 @@
|
||||
|
||||
// Build up all the y scales
|
||||
helpers.each(this.options.scales.yAxes, function(yAxisOptions) {
|
||||
var ScaleClass = Chart.scales.getScaleConstructor(yAxisOptions.type);
|
||||
var ScaleClass = Chart.scaleService.getScaleConstructor(yAxisOptions.type);
|
||||
var scale = new ScaleClass({
|
||||
ctx: this.chart.ctx,
|
||||
options: yAxisOptions,
|
||||
|
||||
@@ -344,7 +344,7 @@
|
||||
|
||||
// Build the x axes
|
||||
helpers.each(this.options.scales.xAxes, function(xAxisOptions) {
|
||||
var ScaleClass = Chart.scales.getScaleConstructor(xAxisOptions.type);
|
||||
var ScaleClass = Chart.scaleService.getScaleConstructor(xAxisOptions.type);
|
||||
var scale = new ScaleClass({
|
||||
ctx: this.chart.ctx,
|
||||
options: xAxisOptions,
|
||||
@@ -357,7 +357,7 @@
|
||||
|
||||
// Build the y axes
|
||||
helpers.each(this.options.scales.yAxes, function(yAxisOptions) {
|
||||
var ScaleClass = Chart.scales.getScaleConstructor(yAxisOptions.type);
|
||||
var ScaleClass = Chart.scaleService.getScaleConstructor(yAxisOptions.type);
|
||||
var scale = new ScaleClass({
|
||||
ctx: this.chart.ctx,
|
||||
options: yAxisOptions,
|
||||
|
||||
@@ -1,400 +1,383 @@
|
||||
(function() {
|
||||
"use strict";
|
||||
|
||||
var root = this,
|
||||
Chart = root.Chart,
|
||||
//Cache a local reference to Chart.helpers
|
||||
helpers = Chart.helpers;
|
||||
|
||||
var defaultConfig = {
|
||||
|
||||
scale: {
|
||||
type: "radialLinear",
|
||||
display: true,
|
||||
|
||||
//Boolean - Whether to animate scaling the chart from the centre
|
||||
animate: false,
|
||||
|
||||
lineArc: true,
|
||||
|
||||
// grid line settings
|
||||
gridLines: {
|
||||
show: true,
|
||||
color: "rgba(0, 0, 0, 0.05)",
|
||||
lineWidth: 1,
|
||||
},
|
||||
|
||||
// scale numbers
|
||||
beginAtZero: true,
|
||||
|
||||
// label settings
|
||||
labels: {
|
||||
show: true,
|
||||
template: "<%=value.toLocaleString()%>",
|
||||
fontSize: 12,
|
||||
fontStyle: "normal",
|
||||
fontColor: "#666",
|
||||
fontFamily: "Helvetica Neue",
|
||||
|
||||
//Boolean - Show a backdrop to the scale label
|
||||
showLabelBackdrop: true,
|
||||
|
||||
//String - The colour of the label backdrop
|
||||
backdropColor: "rgba(255,255,255,0.75)",
|
||||
|
||||
//Number - The backdrop padding above & below the label in pixels
|
||||
backdropPaddingY: 2,
|
||||
|
||||
//Number - The backdrop padding to the side of the label in pixels
|
||||
backdropPaddingX: 2,
|
||||
}
|
||||
},
|
||||
|
||||
//Boolean - Whether to animate the rotation of the chart
|
||||
animateRotate: true,
|
||||
};
|
||||
|
||||
|
||||
Chart.Type.extend({
|
||||
//Passing in a name registers this chart in the Chart namespace
|
||||
name: "PolarArea",
|
||||
//Providing a defaults will also register the deafults in the chart namespace
|
||||
defaults: defaultConfig,
|
||||
//Initialize is fired when the chart is initialized - Data is passed in as a parameter
|
||||
//Config is automatically merged by the core of Chart.js, and is available at this.options
|
||||
initialize: function() {
|
||||
|
||||
// Scale setup
|
||||
var self = this;
|
||||
var ScaleClass = Chart.scales.getScaleConstructor(this.options.scale.type);
|
||||
this.scale = new ScaleClass({
|
||||
options: this.options.scale,
|
||||
lineArc: true,
|
||||
width: this.chart.width,
|
||||
height: this.chart.height,
|
||||
xCenter: this.chart.width / 2,
|
||||
yCenter: this.chart.height / 2,
|
||||
ctx: this.chart.ctx,
|
||||
valuesCount: this.data.length,
|
||||
calculateRange: function() {
|
||||
this.min = null;
|
||||
this.max = null;
|
||||
|
||||
helpers.each(self.data.datasets[0].data, function(value) {
|
||||
if (this.min === null) {
|
||||
this.min = value;
|
||||
} else if (value < this.min) {
|
||||
this.min = value;
|
||||
}
|
||||
|
||||
if (this.max === null) {
|
||||
this.max = value;
|
||||
} else if (value > this.max) {
|
||||
this.max = value;
|
||||
}
|
||||
}, this);
|
||||
}
|
||||
});
|
||||
|
||||
helpers.bindEvents(this, this.options.events, this.events);
|
||||
|
||||
//Set up tooltip events on the chart
|
||||
helpers.bindEvents(this, this.options.events, this.events);
|
||||
|
||||
//Create a new bar for each piece of data
|
||||
helpers.each(this.data.datasets, function(dataset, datasetIndex) {
|
||||
dataset.metaData = [];
|
||||
helpers.each(dataset.data, function(dataPoint, index) {
|
||||
dataset.metaData.push(new Chart.Arc({
|
||||
_chart: this.chart,
|
||||
_datasetIndex: datasetIndex,
|
||||
_index: index,
|
||||
_model: {}
|
||||
}));
|
||||
}, this);
|
||||
}, this);
|
||||
|
||||
// Create tooltip instance exclusively for this chart with some defaults.
|
||||
this.tooltip = new Chart.Tooltip({
|
||||
_chart: this.chart,
|
||||
_data: this.data,
|
||||
_options: this.options,
|
||||
}, this);
|
||||
|
||||
// Fit the scale before we animate
|
||||
this.updateScaleRange();
|
||||
this.scale.calculateRange();
|
||||
Chart.scaleService.fitScalesForChart(this, this.chart.width, this.chart.height);
|
||||
|
||||
// so that we animate nicely
|
||||
this.resetElements();
|
||||
|
||||
// Update the chart with the latest data.
|
||||
this.update();
|
||||
|
||||
},
|
||||
updateScaleRange: function() {
|
||||
helpers.extend(this.scale, {
|
||||
size: helpers.min([this.chart.width, this.chart.height]),
|
||||
xCenter: this.chart.width / 2,
|
||||
yCenter: this.chart.height / 2
|
||||
});
|
||||
},
|
||||
resetElements: function() {
|
||||
var circumference = 1 / this.data.datasets[0].data.length * 2;
|
||||
|
||||
// Map new data to data points
|
||||
helpers.each(this.data.datasets[0].metaData, function(slice, index) {
|
||||
|
||||
var value = this.data.datasets[0].data[index];
|
||||
|
||||
helpers.extend(slice, {
|
||||
_index: index,
|
||||
_model: {
|
||||
x: this.chart.width / 2,
|
||||
y: this.chart.height / 2,
|
||||
innerRadius: 0,
|
||||
outerRadius: 0,
|
||||
startAngle: Math.PI * -0.5,
|
||||
endAngle: Math.PI * -0.5,
|
||||
|
||||
backgroundColor: slice.custom && slice.custom.backgroundColor ? slice.custom.backgroundColor : helpers.getValueAtIndexOrDefault(this.data.datasets[0].backgroundColor, index, this.options.elements.arc.backgroundColor),
|
||||
hoverBackgroundColor: slice.custom && slice.custom.hoverBackgroundColor ? slice.custom.hoverBackgroundColor : helpers.getValueAtIndexOrDefault(this.data.datasets[0].hoverBackgroundColor, index, this.options.elements.arc.hoverBackgroundColor),
|
||||
borderWidth: slice.custom && slice.custom.borderWidth ? slice.custom.borderWidth : helpers.getValueAtIndexOrDefault(this.data.datasets[0].borderWidth, index, this.options.elements.arc.borderWidth),
|
||||
borderColor: slice.custom && slice.custom.borderColor ? slice.custom.borderColor : helpers.getValueAtIndexOrDefault(this.data.datasets[0].borderColor, index, this.options.elements.arc.borderColor),
|
||||
|
||||
label: helpers.getValueAtIndexOrDefault(this.data.datasets[0].labels, index, this.data.datasets[0].labels[index])
|
||||
},
|
||||
});
|
||||
|
||||
slice.pivot();
|
||||
}, this);
|
||||
},
|
||||
update: function(animationDuration) {
|
||||
|
||||
this.updateScaleRange();
|
||||
this.scale.calculateRange();
|
||||
this.scale.generateTicks();
|
||||
this.scale.buildYLabels();
|
||||
|
||||
Chart.scaleService.fitScalesForChart(this, this.chart.width, this.chart.height);
|
||||
|
||||
var circumference = 1 / this.data.datasets[0].data.length * 2;
|
||||
|
||||
// Map new data to data points
|
||||
helpers.each(this.data.datasets[0].metaData, function(slice, index) {
|
||||
|
||||
var value = this.data.datasets[0].data[index];
|
||||
|
||||
var startAngle = (-0.5 * Math.PI) + (Math.PI * circumference) * index;
|
||||
var endAngle = startAngle + (circumference * Math.PI);
|
||||
|
||||
helpers.extend(slice, {
|
||||
_index: index,
|
||||
_model: {
|
||||
x: this.chart.width / 2,
|
||||
y: this.chart.height / 2,
|
||||
innerRadius: 0,
|
||||
outerRadius: this.scale.calculateCenterOffset(value),
|
||||
startAngle: startAngle,
|
||||
endAngle: endAngle,
|
||||
|
||||
backgroundColor: slice.custom && slice.custom.backgroundColor ? slice.custom.backgroundColor : helpers.getValueAtIndexOrDefault(this.data.datasets[0].backgroundColor, index, this.options.elements.arc.backgroundColor),
|
||||
hoverBackgroundColor: slice.custom && slice.custom.hoverBackgroundColor ? slice.custom.hoverBackgroundColor : helpers.getValueAtIndexOrDefault(this.data.datasets[0].hoverBackgroundColor, index, this.options.elements.arc.hoverBackgroundColor),
|
||||
borderWidth: slice.custom && slice.custom.borderWidth ? slice.custom.borderWidth : helpers.getValueAtIndexOrDefault(this.data.datasets[0].borderWidth, index, this.options.elements.arc.borderWidth),
|
||||
borderColor: slice.custom && slice.custom.borderColor ? slice.custom.borderColor : helpers.getValueAtIndexOrDefault(this.data.datasets[0].borderColor, index, this.options.elements.arc.borderColor),
|
||||
|
||||
label: helpers.getValueAtIndexOrDefault(this.data.datasets[0].labels, index, this.data.datasets[0].labels[index])
|
||||
},
|
||||
});
|
||||
slice.pivot();
|
||||
|
||||
console.log(slice);
|
||||
|
||||
}, this);
|
||||
|
||||
this.render(animationDuration);
|
||||
},
|
||||
draw: function(ease) {
|
||||
var easingDecimal = ease || 1;
|
||||
|
||||
this.clear();
|
||||
|
||||
helpers.each(this.data.datasets[0].metaData, function(slice, index) {
|
||||
slice.transition(easingDecimal).draw();
|
||||
}, this);
|
||||
|
||||
this.scale.draw();
|
||||
|
||||
this.tooltip.transition(easingDecimal).draw();
|
||||
},
|
||||
events: function(e) {
|
||||
|
||||
// If exiting chart
|
||||
if (e.type == 'mouseout') {
|
||||
return this;
|
||||
}
|
||||
|
||||
this.lastActive = this.lastActive || [];
|
||||
|
||||
// Find Active Elements
|
||||
this.active = function() {
|
||||
switch (this.options.hover.mode) {
|
||||
case 'single':
|
||||
return this.getSliceAtEvent(e);
|
||||
case 'label':
|
||||
return this.getSlicesAtEvent(e);
|
||||
case 'dataset':
|
||||
return this.getDatasetAtEvent(e);
|
||||
default:
|
||||
return e;
|
||||
}
|
||||
}.call(this);
|
||||
|
||||
// On Hover hook
|
||||
if (this.options.hover.onHover) {
|
||||
this.options.hover.onHover.call(this, this.active);
|
||||
}
|
||||
|
||||
if (e.type == 'mouseup' || e.type == 'click') {
|
||||
if (this.options.onClick) {
|
||||
this.options.onClick.call(this, e, this.active);
|
||||
}
|
||||
}
|
||||
|
||||
var dataset;
|
||||
var index;
|
||||
// Remove styling for last active (even if it may still be active)
|
||||
if (this.lastActive.length) {
|
||||
switch (this.options.hover.mode) {
|
||||
case 'single':
|
||||
dataset = this.data.datasets[this.lastActive[0]._datasetIndex];
|
||||
index = this.lastActive[0]._index;
|
||||
|
||||
this.lastActive[0]._model.backgroundColor = this.lastActive[0].custom && this.lastActive[0].custom.backgroundColor ? this.lastActive[0].custom.backgroundColor : helpers.getValueAtIndexOrDefault(dataset.backgroundColor, index, this.options.elements.arc.backgroundColor);
|
||||
this.lastActive[0]._model.borderColor = this.lastActive[0].custom && this.lastActive[0].custom.borderColor ? this.lastActive[0].custom.borderColor : helpers.getValueAtIndexOrDefault(dataset.borderColor, index, this.options.elements.arc.borderColor);
|
||||
this.lastActive[0]._model.borderWidth = this.lastActive[0].custom && this.lastActive[0].custom.borderWidth ? this.lastActive[0].custom.borderWidth : helpers.getValueAtIndexOrDefault(dataset.borderWidth, index, this.options.elements.arc.borderWidth);
|
||||
break;
|
||||
case 'label':
|
||||
for (var i = 0; i < this.lastActive.length; i++) {
|
||||
dataset = this.data.datasets[this.lastActive[i]._datasetIndex];
|
||||
index = this.lastActive[i]._index;
|
||||
|
||||
this.lastActive[i]._model.backgroundColor = this.lastActive[i].custom && this.lastActive[i].custom.backgroundColor ? this.lastActive[i].custom.backgroundColor : helpers.getValueAtIndexOrDefault(dataset.backgroundColor, index, this.options.elements.arc.backgroundColor);
|
||||
this.lastActive[i]._model.borderColor = this.lastActive[i].custom && this.lastActive[i].custom.borderColor ? this.lastActive[i].custom.borderColor : helpers.getValueAtIndexOrDefault(dataset.borderColor, index, this.options.elements.arc.borderColor);
|
||||
this.lastActive[i]._model.borderWidth = this.lastActive[i].custom && this.lastActive[i].custom.borderWidth ? this.lastActive[i].custom.borderWidth : helpers.getValueAtIndexOrDefault(dataset.borderWidth, index, this.options.elements.arc.borderWidth);
|
||||
}
|
||||
break;
|
||||
case 'dataset':
|
||||
break;
|
||||
default:
|
||||
// Don't change anything
|
||||
}
|
||||
}
|
||||
|
||||
// Built in hover styling
|
||||
if (this.active.length && this.options.hover.mode) {
|
||||
switch (this.options.hover.mode) {
|
||||
case 'single':
|
||||
dataset = this.data.datasets[this.active[0]._datasetIndex];
|
||||
index = this.active[0]._index;
|
||||
|
||||
this.active[0]._model.radius = this.active[0].custom && this.active[0].custom.hoverRadius ? this.active[0].custom.hoverRadius : helpers.getValueAtIndexOrDefault(dataset.pointHoverRadius, index, this.active[0]._model.radius + 1);
|
||||
this.active[0]._model.backgroundColor = this.active[0].custom && this.active[0].custom.hoverBackgroundColor ? this.active[0].custom.hoverBackgroundColor : helpers.getValueAtIndexOrDefault(dataset.pointHoverBackgroundColor, index, helpers.color(this.active[0]._model.backgroundColor).saturate(0.5).darken(0.1).rgbString());
|
||||
this.active[0]._model.borderColor = this.active[0].custom && this.active[0].custom.hoverBorderColor ? this.active[0].custom.hoverBorderColor : helpers.getValueAtIndexOrDefault(dataset.pointHoverBorderColor, index, helpers.color(this.active[0]._model.borderColor).saturate(0.5).darken(0.1).rgbString());
|
||||
this.active[0]._model.borderWidth = this.active[0].custom && this.active[0].custom.hoverBorderWidth ? this.active[0].custom.hoverBorderWidth : helpers.getValueAtIndexOrDefault(dataset.pointBorderWidth, index, this.active[0]._model.borderWidth);
|
||||
break;
|
||||
case 'label':
|
||||
for (var i = 0; i < this.active.length; i++) {
|
||||
dataset = this.data.datasets[this.active[i]._datasetIndex];
|
||||
index = this.active[i]._index;
|
||||
|
||||
this.active[i]._model.radius = this.active[i].custom && this.active[i].custom.hoverRadius ? this.active[i].custom.hoverRadius : helpers.getValueAtIndexOrDefault(dataset.pointHoverRadius, index, this.active[i]._model.radius + 1);
|
||||
this.active[i]._model.backgroundColor = this.active[i].custom && this.active[i].custom.hoverBackgroundColor ? this.active[i].custom.hoverBackgroundColor : helpers.getValueAtIndexOrDefault(dataset.pointHoverBackgroundColor, index, helpers.color(this.active[i]._model.backgroundColor).saturate(0.5).darken(0.1).rgbString());
|
||||
this.active[i]._model.borderColor = this.active[i].custom && this.active[i].custom.hoverBorderColor ? this.active[i].custom.hoverBorderColor : helpers.getValueAtIndexOrDefault(dataset.pointHoverBorderColor, index, helpers.color(this.active[i]._model.borderColor).saturate(0.5).darken(0.1).rgbString());
|
||||
this.active[i]._model.borderWidth = this.active[i].custom && this.active[i].custom.hoverBorderWidth ? this.active[i].custom.hoverBorderWidth : helpers.getValueAtIndexOrDefault(dataset.pointBorderWidth, index, this.active[i]._model.borderWidth);
|
||||
}
|
||||
break;
|
||||
case 'dataset':
|
||||
break;
|
||||
default:
|
||||
// Don't change anything
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
// Built in Tooltips
|
||||
if (this.options.tooltips.enabled) {
|
||||
|
||||
// The usual updates
|
||||
this.tooltip.initialize();
|
||||
|
||||
// Active
|
||||
if (this.active.length) {
|
||||
this.tooltip._model.opacity = 1;
|
||||
|
||||
helpers.extend(this.tooltip, {
|
||||
_active: this.active,
|
||||
});
|
||||
|
||||
this.tooltip.update();
|
||||
} else {
|
||||
// Inactive
|
||||
this.tooltip._model.opacity = 0;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
// Hover animations
|
||||
this.tooltip.pivot();
|
||||
|
||||
if (!this.animating) {
|
||||
var changed;
|
||||
|
||||
helpers.each(this.active, function(element, index) {
|
||||
if (element !== this.lastActive[index]) {
|
||||
changed = true;
|
||||
}
|
||||
}, this);
|
||||
|
||||
// If entering, leaving, or changing elements, animate the change via pivot
|
||||
if ((!this.lastActive.length && this.active.length) ||
|
||||
(this.lastActive.length && !this.active.length) ||
|
||||
(this.lastActive.length && this.active.length && changed)) {
|
||||
|
||||
this.stop();
|
||||
this.render(this.options.hover.animationDuration);
|
||||
}
|
||||
}
|
||||
|
||||
// Remember Last Active
|
||||
this.lastActive = this.active;
|
||||
return this;
|
||||
},
|
||||
getSliceAtEvent: function(e) {
|
||||
var elements = [];
|
||||
|
||||
var location = helpers.getRelativePosition(e);
|
||||
|
||||
this.eachElement(function(slice, index) {
|
||||
if (slice.inRange(location.x, location.y)) {
|
||||
elements.push(slice);
|
||||
}
|
||||
}, this);
|
||||
return elements;
|
||||
},
|
||||
/*getSlicesAtEvent: function(e) {
|
||||
var elements = [];
|
||||
|
||||
var location = helpers.getRelativePosition(e);
|
||||
|
||||
this.eachElement(function(slice, index) {
|
||||
if (slice.inGroupRange(location.x, location.y)) {
|
||||
elements.push(slice);
|
||||
}
|
||||
}, this);
|
||||
return elements;
|
||||
},*/
|
||||
});
|
||||
"use strict";
|
||||
|
||||
var root = this,
|
||||
Chart = root.Chart,
|
||||
//Cache a local reference to Chart.helpers
|
||||
helpers = Chart.helpers;
|
||||
|
||||
var defaultConfig = {
|
||||
|
||||
scale: {
|
||||
type: "radialLinear",
|
||||
display: true,
|
||||
|
||||
//Boolean - Whether to animate scaling the chart from the centre
|
||||
animate: false,
|
||||
|
||||
lineArc: true,
|
||||
|
||||
// grid line settings
|
||||
gridLines: {
|
||||
show: true,
|
||||
color: "rgba(0, 0, 0, 0.05)",
|
||||
lineWidth: 1,
|
||||
},
|
||||
|
||||
// scale numbers
|
||||
beginAtZero: true,
|
||||
|
||||
// label settings
|
||||
labels: {
|
||||
show: true,
|
||||
template: "<%=value.toLocaleString()%>",
|
||||
fontSize: 12,
|
||||
fontStyle: "normal",
|
||||
fontColor: "#666",
|
||||
fontFamily: "Helvetica Neue",
|
||||
|
||||
//Boolean - Show a backdrop to the scale label
|
||||
showLabelBackdrop: true,
|
||||
|
||||
//String - The colour of the label backdrop
|
||||
backdropColor: "rgba(255,255,255,0.75)",
|
||||
|
||||
//Number - The backdrop padding above & below the label in pixels
|
||||
backdropPaddingY: 2,
|
||||
|
||||
//Number - The backdrop padding to the side of the label in pixels
|
||||
backdropPaddingX: 2,
|
||||
}
|
||||
},
|
||||
|
||||
//Boolean - Whether to animate the rotation of the chart
|
||||
animateRotate: true,
|
||||
};
|
||||
|
||||
|
||||
Chart.Type.extend({
|
||||
//Passing in a name registers this chart in the Chart namespace
|
||||
name: "PolarArea",
|
||||
//Providing a defaults will also register the deafults in the chart namespace
|
||||
defaults: defaultConfig,
|
||||
//Initialize is fired when the chart is initialized - Data is passed in as a parameter
|
||||
//Config is automatically merged by the core of Chart.js, and is available at this.options
|
||||
initialize: function() {
|
||||
|
||||
// Scale setup
|
||||
var self = this;
|
||||
var ScaleClass = Chart.scaleService.getScaleConstructor(this.options.scale.type);
|
||||
this.scale = new ScaleClass({
|
||||
options: this.options.scale,
|
||||
lineArc: true,
|
||||
width: this.chart.width,
|
||||
height: this.chart.height,
|
||||
xCenter: this.chart.width / 2,
|
||||
yCenter: this.chart.height / 2,
|
||||
ctx: this.chart.ctx,
|
||||
valuesCount: this.data.length,
|
||||
data: this.data
|
||||
});
|
||||
|
||||
helpers.bindEvents(this, this.options.events, this.events);
|
||||
|
||||
//Set up tooltip events on the chart
|
||||
helpers.bindEvents(this, this.options.events, this.events);
|
||||
|
||||
//Create a new bar for each piece of data
|
||||
helpers.each(this.data.datasets, function(dataset, datasetIndex) {
|
||||
dataset.metaData = [];
|
||||
helpers.each(dataset.data, function(dataPoint, index) {
|
||||
dataset.metaData.push(new Chart.Arc({
|
||||
_chart: this.chart,
|
||||
_datasetIndex: datasetIndex,
|
||||
_index: index,
|
||||
_model: {}
|
||||
}));
|
||||
}, this);
|
||||
}, this);
|
||||
|
||||
// Create tooltip instance exclusively for this chart with some defaults.
|
||||
this.tooltip = new Chart.Tooltip({
|
||||
_chart: this.chart,
|
||||
_data: this.data,
|
||||
_options: this.options,
|
||||
}, this);
|
||||
|
||||
// Fit the scale before we animate
|
||||
this.updateScaleRange();
|
||||
this.scale.calculateRange();
|
||||
Chart.scaleService.fitScalesForChart(this, this.chart.width, this.chart.height);
|
||||
|
||||
// so that we animate nicely
|
||||
this.resetElements();
|
||||
|
||||
// Update the chart with the latest data.
|
||||
this.update();
|
||||
|
||||
},
|
||||
updateScaleRange: function() {
|
||||
helpers.extend(this.scale, {
|
||||
size: helpers.min([this.chart.width, this.chart.height]),
|
||||
xCenter: this.chart.width / 2,
|
||||
yCenter: this.chart.height / 2
|
||||
});
|
||||
},
|
||||
resetElements: function() {
|
||||
var circumference = 1 / this.data.datasets[0].data.length * 2;
|
||||
|
||||
// Map new data to data points
|
||||
helpers.each(this.data.datasets[0].metaData, function(slice, index) {
|
||||
|
||||
var value = this.data.datasets[0].data[index];
|
||||
|
||||
helpers.extend(slice, {
|
||||
_index: index,
|
||||
_model: {
|
||||
x: this.chart.width / 2,
|
||||
y: this.chart.height / 2,
|
||||
innerRadius: 0,
|
||||
outerRadius: 0,
|
||||
startAngle: Math.PI * -0.5,
|
||||
endAngle: Math.PI * -0.5,
|
||||
|
||||
backgroundColor: slice.custom && slice.custom.backgroundColor ? slice.custom.backgroundColor : helpers.getValueAtIndexOrDefault(this.data.datasets[0].backgroundColor, index, this.options.elements.arc.backgroundColor),
|
||||
hoverBackgroundColor: slice.custom && slice.custom.hoverBackgroundColor ? slice.custom.hoverBackgroundColor : helpers.getValueAtIndexOrDefault(this.data.datasets[0].hoverBackgroundColor, index, this.options.elements.arc.hoverBackgroundColor),
|
||||
borderWidth: slice.custom && slice.custom.borderWidth ? slice.custom.borderWidth : helpers.getValueAtIndexOrDefault(this.data.datasets[0].borderWidth, index, this.options.elements.arc.borderWidth),
|
||||
borderColor: slice.custom && slice.custom.borderColor ? slice.custom.borderColor : helpers.getValueAtIndexOrDefault(this.data.datasets[0].borderColor, index, this.options.elements.arc.borderColor),
|
||||
|
||||
label: helpers.getValueAtIndexOrDefault(this.data.datasets[0].labels, index, this.data.datasets[0].labels[index])
|
||||
},
|
||||
});
|
||||
|
||||
slice.pivot();
|
||||
}, this);
|
||||
},
|
||||
update: function(animationDuration) {
|
||||
|
||||
this.updateScaleRange();
|
||||
this.scale.calculateRange();
|
||||
this.scale.generateTicks();
|
||||
this.scale.buildYLabels();
|
||||
|
||||
Chart.scaleService.fitScalesForChart(this, this.chart.width, this.chart.height);
|
||||
|
||||
var circumference = 1 / this.data.datasets[0].data.length * 2;
|
||||
|
||||
// Map new data to data points
|
||||
helpers.each(this.data.datasets[0].metaData, function(slice, index) {
|
||||
|
||||
var value = this.data.datasets[0].data[index];
|
||||
|
||||
var startAngle = (-0.5 * Math.PI) + (Math.PI * circumference) * index;
|
||||
var endAngle = startAngle + (circumference * Math.PI);
|
||||
|
||||
helpers.extend(slice, {
|
||||
_index: index,
|
||||
_model: {
|
||||
x: this.chart.width / 2,
|
||||
y: this.chart.height / 2,
|
||||
innerRadius: 0,
|
||||
outerRadius: this.scale.calculateCenterOffset(value),
|
||||
startAngle: startAngle,
|
||||
endAngle: endAngle,
|
||||
|
||||
backgroundColor: slice.custom && slice.custom.backgroundColor ? slice.custom.backgroundColor : helpers.getValueAtIndexOrDefault(this.data.datasets[0].backgroundColor, index, this.options.elements.arc.backgroundColor),
|
||||
hoverBackgroundColor: slice.custom && slice.custom.hoverBackgroundColor ? slice.custom.hoverBackgroundColor : helpers.getValueAtIndexOrDefault(this.data.datasets[0].hoverBackgroundColor, index, this.options.elements.arc.hoverBackgroundColor),
|
||||
borderWidth: slice.custom && slice.custom.borderWidth ? slice.custom.borderWidth : helpers.getValueAtIndexOrDefault(this.data.datasets[0].borderWidth, index, this.options.elements.arc.borderWidth),
|
||||
borderColor: slice.custom && slice.custom.borderColor ? slice.custom.borderColor : helpers.getValueAtIndexOrDefault(this.data.datasets[0].borderColor, index, this.options.elements.arc.borderColor),
|
||||
|
||||
label: helpers.getValueAtIndexOrDefault(this.data.datasets[0].labels, index, this.data.datasets[0].labels[index])
|
||||
},
|
||||
});
|
||||
slice.pivot();
|
||||
|
||||
console.log(slice);
|
||||
|
||||
}, this);
|
||||
|
||||
this.render(animationDuration);
|
||||
},
|
||||
draw: function(ease) {
|
||||
var easingDecimal = ease || 1;
|
||||
|
||||
this.clear();
|
||||
|
||||
helpers.each(this.data.datasets[0].metaData, function(slice, index) {
|
||||
slice.transition(easingDecimal).draw();
|
||||
}, this);
|
||||
|
||||
this.scale.draw();
|
||||
|
||||
this.tooltip.transition(easingDecimal).draw();
|
||||
},
|
||||
events: function(e) {
|
||||
|
||||
// If exiting chart
|
||||
if (e.type == 'mouseout') {
|
||||
return this;
|
||||
}
|
||||
|
||||
this.lastActive = this.lastActive || [];
|
||||
|
||||
// Find Active Elements
|
||||
this.active = function() {
|
||||
switch (this.options.hover.mode) {
|
||||
case 'single':
|
||||
return this.getSliceAtEvent(e);
|
||||
case 'label':
|
||||
return this.getSlicesAtEvent(e);
|
||||
case 'dataset':
|
||||
return this.getDatasetAtEvent(e);
|
||||
default:
|
||||
return e;
|
||||
}
|
||||
}.call(this);
|
||||
|
||||
// On Hover hook
|
||||
if (this.options.hover.onHover) {
|
||||
this.options.hover.onHover.call(this, this.active);
|
||||
}
|
||||
|
||||
if (e.type == 'mouseup' || e.type == 'click') {
|
||||
if (this.options.onClick) {
|
||||
this.options.onClick.call(this, e, this.active);
|
||||
}
|
||||
}
|
||||
|
||||
var dataset;
|
||||
var index;
|
||||
// Remove styling for last active (even if it may still be active)
|
||||
if (this.lastActive.length) {
|
||||
switch (this.options.hover.mode) {
|
||||
case 'single':
|
||||
dataset = this.data.datasets[this.lastActive[0]._datasetIndex];
|
||||
index = this.lastActive[0]._index;
|
||||
|
||||
this.lastActive[0]._model.backgroundColor = this.lastActive[0].custom && this.lastActive[0].custom.backgroundColor ? this.lastActive[0].custom.backgroundColor : helpers.getValueAtIndexOrDefault(dataset.backgroundColor, index, this.options.elements.arc.backgroundColor);
|
||||
this.lastActive[0]._model.borderColor = this.lastActive[0].custom && this.lastActive[0].custom.borderColor ? this.lastActive[0].custom.borderColor : helpers.getValueAtIndexOrDefault(dataset.borderColor, index, this.options.elements.arc.borderColor);
|
||||
this.lastActive[0]._model.borderWidth = this.lastActive[0].custom && this.lastActive[0].custom.borderWidth ? this.lastActive[0].custom.borderWidth : helpers.getValueAtIndexOrDefault(dataset.borderWidth, index, this.options.elements.arc.borderWidth);
|
||||
break;
|
||||
case 'label':
|
||||
for (var i = 0; i < this.lastActive.length; i++) {
|
||||
dataset = this.data.datasets[this.lastActive[i]._datasetIndex];
|
||||
index = this.lastActive[i]._index;
|
||||
|
||||
this.lastActive[i]._model.backgroundColor = this.lastActive[i].custom && this.lastActive[i].custom.backgroundColor ? this.lastActive[i].custom.backgroundColor : helpers.getValueAtIndexOrDefault(dataset.backgroundColor, index, this.options.elements.arc.backgroundColor);
|
||||
this.lastActive[i]._model.borderColor = this.lastActive[i].custom && this.lastActive[i].custom.borderColor ? this.lastActive[i].custom.borderColor : helpers.getValueAtIndexOrDefault(dataset.borderColor, index, this.options.elements.arc.borderColor);
|
||||
this.lastActive[i]._model.borderWidth = this.lastActive[i].custom && this.lastActive[i].custom.borderWidth ? this.lastActive[i].custom.borderWidth : helpers.getValueAtIndexOrDefault(dataset.borderWidth, index, this.options.elements.arc.borderWidth);
|
||||
}
|
||||
break;
|
||||
case 'dataset':
|
||||
break;
|
||||
default:
|
||||
// Don't change anything
|
||||
}
|
||||
}
|
||||
|
||||
// Built in hover styling
|
||||
if (this.active.length && this.options.hover.mode) {
|
||||
switch (this.options.hover.mode) {
|
||||
case 'single':
|
||||
dataset = this.data.datasets[this.active[0]._datasetIndex];
|
||||
index = this.active[0]._index;
|
||||
|
||||
this.active[0]._model.radius = this.active[0].custom && this.active[0].custom.hoverRadius ? this.active[0].custom.hoverRadius : helpers.getValueAtIndexOrDefault(dataset.pointHoverRadius, index, this.active[0]._model.radius + 1);
|
||||
this.active[0]._model.backgroundColor = this.active[0].custom && this.active[0].custom.hoverBackgroundColor ? this.active[0].custom.hoverBackgroundColor : helpers.getValueAtIndexOrDefault(dataset.pointHoverBackgroundColor, index, helpers.color(this.active[0]._model.backgroundColor).saturate(0.5).darken(0.1).rgbString());
|
||||
this.active[0]._model.borderColor = this.active[0].custom && this.active[0].custom.hoverBorderColor ? this.active[0].custom.hoverBorderColor : helpers.getValueAtIndexOrDefault(dataset.pointHoverBorderColor, index, helpers.color(this.active[0]._model.borderColor).saturate(0.5).darken(0.1).rgbString());
|
||||
this.active[0]._model.borderWidth = this.active[0].custom && this.active[0].custom.hoverBorderWidth ? this.active[0].custom.hoverBorderWidth : helpers.getValueAtIndexOrDefault(dataset.pointBorderWidth, index, this.active[0]._model.borderWidth);
|
||||
break;
|
||||
case 'label':
|
||||
for (var i = 0; i < this.active.length; i++) {
|
||||
dataset = this.data.datasets[this.active[i]._datasetIndex];
|
||||
index = this.active[i]._index;
|
||||
|
||||
this.active[i]._model.radius = this.active[i].custom && this.active[i].custom.hoverRadius ? this.active[i].custom.hoverRadius : helpers.getValueAtIndexOrDefault(dataset.pointHoverRadius, index, this.active[i]._model.radius + 1);
|
||||
this.active[i]._model.backgroundColor = this.active[i].custom && this.active[i].custom.hoverBackgroundColor ? this.active[i].custom.hoverBackgroundColor : helpers.getValueAtIndexOrDefault(dataset.pointHoverBackgroundColor, index, helpers.color(this.active[i]._model.backgroundColor).saturate(0.5).darken(0.1).rgbString());
|
||||
this.active[i]._model.borderColor = this.active[i].custom && this.active[i].custom.hoverBorderColor ? this.active[i].custom.hoverBorderColor : helpers.getValueAtIndexOrDefault(dataset.pointHoverBorderColor, index, helpers.color(this.active[i]._model.borderColor).saturate(0.5).darken(0.1).rgbString());
|
||||
this.active[i]._model.borderWidth = this.active[i].custom && this.active[i].custom.hoverBorderWidth ? this.active[i].custom.hoverBorderWidth : helpers.getValueAtIndexOrDefault(dataset.pointBorderWidth, index, this.active[i]._model.borderWidth);
|
||||
}
|
||||
break;
|
||||
case 'dataset':
|
||||
break;
|
||||
default:
|
||||
// Don't change anything
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
// Built in Tooltips
|
||||
if (this.options.tooltips.enabled) {
|
||||
|
||||
// The usual updates
|
||||
this.tooltip.initialize();
|
||||
|
||||
// Active
|
||||
if (this.active.length) {
|
||||
this.tooltip._model.opacity = 1;
|
||||
|
||||
helpers.extend(this.tooltip, {
|
||||
_active: this.active,
|
||||
});
|
||||
|
||||
this.tooltip.update();
|
||||
} else {
|
||||
// Inactive
|
||||
this.tooltip._model.opacity = 0;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
// Hover animations
|
||||
this.tooltip.pivot();
|
||||
|
||||
if (!this.animating) {
|
||||
var changed;
|
||||
|
||||
helpers.each(this.active, function(element, index) {
|
||||
if (element !== this.lastActive[index]) {
|
||||
changed = true;
|
||||
}
|
||||
}, this);
|
||||
|
||||
// If entering, leaving, or changing elements, animate the change via pivot
|
||||
if ((!this.lastActive.length && this.active.length) ||
|
||||
(this.lastActive.length && !this.active.length) ||
|
||||
(this.lastActive.length && this.active.length && changed)) {
|
||||
|
||||
this.stop();
|
||||
this.render(this.options.hover.animationDuration);
|
||||
}
|
||||
}
|
||||
|
||||
// Remember Last Active
|
||||
this.lastActive = this.active;
|
||||
return this;
|
||||
},
|
||||
getSliceAtEvent: function(e) {
|
||||
var elements = [];
|
||||
|
||||
var location = helpers.getRelativePosition(e);
|
||||
|
||||
this.eachElement(function(slice, index) {
|
||||
if (slice.inRange(location.x, location.y)) {
|
||||
elements.push(slice);
|
||||
}
|
||||
}, this);
|
||||
return elements;
|
||||
},
|
||||
/*getSlicesAtEvent: function(e) {
|
||||
var elements = [];
|
||||
|
||||
var location = helpers.getRelativePosition(e);
|
||||
|
||||
this.eachElement(function(slice, index) {
|
||||
if (slice.inGroupRange(location.x, location.y)) {
|
||||
elements.push(slice);
|
||||
}
|
||||
}, this);
|
||||
return elements;
|
||||
},*/
|
||||
});
|
||||
|
||||
}).call(this);
|
||||
|
||||
File diff suppressed because it is too large
Load Diff
@@ -9,6 +9,18 @@
|
||||
// a service where scales are registered with their respective charts so that changing the
|
||||
// scales does not require
|
||||
Chart.scaleService = {
|
||||
// Scale registration object. Extensions can register new scale types (such as log or DB scales) and then
|
||||
// use the new chart options to grab the correct scale
|
||||
constructors: {},
|
||||
// Use a registration function so that we can move to an ES6 map when we no longer need to support
|
||||
// old browsers
|
||||
registerScaleType: function(type, scaleConstructor) {
|
||||
this.constructors[type] = scaleConstructor;
|
||||
},
|
||||
getScaleConstructor: function(type) {
|
||||
return this.constructors.hasOwnProperty(type) ? this.constructors[type] : undefined;
|
||||
},
|
||||
|
||||
// The interesting function
|
||||
fitScalesForChart: function(chartInstance, width, height) {
|
||||
var xPadding = width > 30 ? 5 : 2;
|
||||
@@ -287,19 +299,4 @@
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
// Scale registration object. Extensions can register new scale types (such as log or DB scales) and then
|
||||
// use the new chart options to grab the correct scale
|
||||
Chart.scales = {
|
||||
constructors: {},
|
||||
// Use a registration function so that we can move to an ES6 map when we no longer need to support
|
||||
// old browsers
|
||||
registerScaleType: function(type, scaleConstructor) {
|
||||
this.constructors[type] = scaleConstructor;
|
||||
},
|
||||
getScaleConstructor: function(type) {
|
||||
return this.constructors.hasOwnProperty(type) ? this.constructors[type] : undefined;
|
||||
}
|
||||
};
|
||||
|
||||
}).call(this);
|
||||
|
||||
@@ -233,8 +233,5 @@
|
||||
}
|
||||
}
|
||||
});
|
||||
Chart.scales.registerScaleType("category", DatasetScale);
|
||||
|
||||
|
||||
|
||||
Chart.scaleService.registerScaleType("category", DatasetScale);
|
||||
}).call(this);
|
||||
|
||||
@@ -523,7 +523,6 @@
|
||||
}
|
||||
}
|
||||
});
|
||||
Chart.scales.registerScaleType("linear", LinearScale);
|
||||
|
||||
|
||||
Chart.scaleService.registerScaleType("linear", LinearScale);
|
||||
|
||||
}).call(this);
|
||||
|
||||
@@ -1,361 +1,380 @@
|
||||
(function() {
|
||||
"use strict";
|
||||
"use strict";
|
||||
|
||||
var root = this,
|
||||
Chart = root.Chart,
|
||||
helpers = Chart.helpers;
|
||||
var root = this,
|
||||
Chart = root.Chart,
|
||||
helpers = Chart.helpers;
|
||||
|
||||
var LinearRadialScale = Chart.Element.extend({
|
||||
initialize: function() {
|
||||
this.size = helpers.min([this.height, this.width]);
|
||||
this.drawingArea = (this.options.display) ? (this.size / 2) - (this.options.labels.fontSize / 2 + this.options.labels.backdropPaddingY) : (this.size / 2);
|
||||
},
|
||||
calculateCenterOffset: function(value) {
|
||||
// Take into account half font size + the yPadding of the top value
|
||||
var scalingFactor = this.drawingArea / (this.max - this.min);
|
||||
return (value - this.min) * scalingFactor;
|
||||
},
|
||||
update: function() {
|
||||
if (!this.options.lineArc) {
|
||||
this.setScaleSize();
|
||||
} else {
|
||||
this.drawingArea = (this.options.display) ? (this.size / 2) - (this.fontSize / 2 + this.backdropPaddingY) : (this.size / 2);
|
||||
}
|
||||
var LinearRadialScale = Chart.Element.extend({
|
||||
initialize: function() {
|
||||
this.size = helpers.min([this.height, this.width]);
|
||||
this.drawingArea = (this.options.display) ? (this.size / 2) - (this.options.labels.fontSize / 2 + this.options.labels.backdropPaddingY) : (this.size / 2);
|
||||
},
|
||||
calculateCenterOffset: function(value) {
|
||||
// Take into account half font size + the yPadding of the top value
|
||||
var scalingFactor = this.drawingArea / (this.max - this.min);
|
||||
return (value - this.min) * scalingFactor;
|
||||
},
|
||||
update: function() {
|
||||
if (!this.options.lineArc) {
|
||||
this.setScaleSize();
|
||||
} else {
|
||||
this.drawingArea = (this.options.display) ? (this.size / 2) - (this.fontSize / 2 + this.backdropPaddingY) : (this.size / 2);
|
||||
}
|
||||
|
||||
this.buildYLabels();
|
||||
},
|
||||
calculateRange: helpers.noop, // overridden in chart
|
||||
generateTicks: function() {
|
||||
// We need to decide how many ticks we are going to have. Each tick draws a grid line.
|
||||
// There are two possibilities. The first is that the user has manually overridden the scale
|
||||
// calculations in which case the job is easy. The other case is that we have to do it ourselves
|
||||
//
|
||||
// We assume at this point that the scale object has been updated with the following values
|
||||
// by the chart.
|
||||
// min: this is the minimum value of the scale
|
||||
// max: this is the maximum value of the scale
|
||||
// options: contains the options for the scale. This is referenced from the user settings
|
||||
// rather than being cloned. This ensures that updates always propogate to a redraw
|
||||
this.buildYLabels();
|
||||
},
|
||||
calculateRange: function() {
|
||||
this.min = null;
|
||||
this.max = null;
|
||||
|
||||
// Reset the ticks array. Later on, we will draw a grid line at these positions
|
||||
// The array simply contains the numerical value of the spots where ticks will be
|
||||
this.ticks = [];
|
||||
helpers.each(this.data.datasets, function(dataset) {
|
||||
helpers.each(dataset.data, function(value, index) {
|
||||
if (this.min === null) {
|
||||
this.min = value;
|
||||
} else if (value < this.min) {
|
||||
this.min = value;
|
||||
}
|
||||
|
||||
if (this.options.override) {
|
||||
// The user has specified the manual override. We use <= instead of < so that
|
||||
// we get the final line
|
||||
for (var i = 0; i <= this.options.override.steps; ++i) {
|
||||
var value = this.options.override.start + (i * this.options.override.stepWidth);
|
||||
ticks.push(value);
|
||||
}
|
||||
} else {
|
||||
// Figure out what the max number of ticks we can support it is based on the size of
|
||||
// the axis area. For now, we say that the minimum tick spacing in pixels must be 50
|
||||
// We also limit the maximum number of ticks to 11 which gives a nice 10 squares on
|
||||
// the graph
|
||||
if (this.max === null) {
|
||||
this.max = value;
|
||||
} else if (value > this.max) {
|
||||
this.max = value;
|
||||
}
|
||||
}, this);
|
||||
}, this);
|
||||
},
|
||||
generateTicks: function() {
|
||||
// We need to decide how many ticks we are going to have. Each tick draws a grid line.
|
||||
// There are two possibilities. The first is that the user has manually overridden the scale
|
||||
// calculations in which case the job is easy. The other case is that we have to do it ourselves
|
||||
//
|
||||
// We assume at this point that the scale object has been updated with the following values
|
||||
// by the chart.
|
||||
// min: this is the minimum value of the scale
|
||||
// max: this is the maximum value of the scale
|
||||
// options: contains the options for the scale. This is referenced from the user settings
|
||||
// rather than being cloned. This ensures that updates always propogate to a redraw
|
||||
|
||||
var maxTicks = Math.min(11, Math.ceil(this.drawingArea / (2 * this.options.labels.fontSize)));
|
||||
// Reset the ticks array. Later on, we will draw a grid line at these positions
|
||||
// The array simply contains the numerical value of the spots where ticks will be
|
||||
this.ticks = [];
|
||||
|
||||
// Make sure we always have at least 2 ticks
|
||||
maxTicks = Math.max(2, maxTicks);
|
||||
if (this.options.override) {
|
||||
// The user has specified the manual override. We use <= instead of < so that
|
||||
// we get the final line
|
||||
for (var i = 0; i <= this.options.override.steps; ++i) {
|
||||
var value = this.options.override.start + (i * this.options.override.stepWidth);
|
||||
ticks.push(value);
|
||||
}
|
||||
} else {
|
||||
// Figure out what the max number of ticks we can support it is based on the size of
|
||||
// the axis area. For now, we say that the minimum tick spacing in pixels must be 50
|
||||
// We also limit the maximum number of ticks to 11 which gives a nice 10 squares on
|
||||
// the graph
|
||||
|
||||
// To get a "nice" value for the tick spacing, we will use the appropriately named
|
||||
// "nice number" algorithm. See http://stackoverflow.com/questions/8506881/nice-label-algorithm-for-charts-with-minimum-ticks
|
||||
// for details.
|
||||
var maxTicks = Math.min(11, Math.ceil(this.drawingArea / (2 * this.options.labels.fontSize)));
|
||||
|
||||
// If we are forcing it to begin at 0, but 0 will already be rendered on the chart,
|
||||
// do nothing since that would make the chart weird. If the user really wants a weird chart
|
||||
// axis, they can manually override it
|
||||
if (this.options.beginAtZero) {
|
||||
var minSign = helpers.sign(this.min);
|
||||
var maxSign = helpers.sign(this.max);
|
||||
// Make sure we always have at least 2 ticks
|
||||
maxTicks = Math.max(2, maxTicks);
|
||||
|
||||
if (minSign < 0 && maxSign < 0) {
|
||||
// move the top up to 0
|
||||
this.max = 0;
|
||||
} else if (minSign > 0 && maxSign > 0) {
|
||||
// move the botttom down to 0
|
||||
this.min = 0;
|
||||
}
|
||||
}
|
||||
// To get a "nice" value for the tick spacing, we will use the appropriately named
|
||||
// "nice number" algorithm. See http://stackoverflow.com/questions/8506881/nice-label-algorithm-for-charts-with-minimum-ticks
|
||||
// for details.
|
||||
|
||||
var niceRange = helpers.niceNum(this.max - this.min, false);
|
||||
var spacing = helpers.niceNum(niceRange / (maxTicks - 1), true);
|
||||
var niceMin = Math.floor(this.min / spacing) * spacing;
|
||||
var niceMax = Math.ceil(this.max / spacing) * spacing;
|
||||
// If we are forcing it to begin at 0, but 0 will already be rendered on the chart,
|
||||
// do nothing since that would make the chart weird. If the user really wants a weird chart
|
||||
// axis, they can manually override it
|
||||
if (this.options.beginAtZero) {
|
||||
var minSign = helpers.sign(this.min);
|
||||
var maxSign = helpers.sign(this.max);
|
||||
|
||||
// Put the values into the ticks array
|
||||
for (var j = niceMin; j <= niceMax; j += spacing) {
|
||||
this.ticks.push(j);
|
||||
}
|
||||
}
|
||||
if (minSign < 0 && maxSign < 0) {
|
||||
// move the top up to 0
|
||||
this.max = 0;
|
||||
} else if (minSign > 0 && maxSign > 0) {
|
||||
// move the botttom down to 0
|
||||
this.min = 0;
|
||||
}
|
||||
}
|
||||
|
||||
if (this.options.position == "left" || this.options.position == "right") {
|
||||
// We are in a vertical orientation. The top value is the highest. So reverse the array
|
||||
this.ticks.reverse();
|
||||
}
|
||||
var niceRange = helpers.niceNum(this.max - this.min, false);
|
||||
var spacing = helpers.niceNum(niceRange / (maxTicks - 1), true);
|
||||
var niceMin = Math.floor(this.min / spacing) * spacing;
|
||||
var niceMax = Math.ceil(this.max / spacing) * spacing;
|
||||
|
||||
// At this point, we need to update our max and min given the tick values since we have expanded the
|
||||
// range of the scale
|
||||
this.max = helpers.max(this.ticks);
|
||||
this.min = helpers.min(this.ticks);
|
||||
},
|
||||
buildYLabels: function() {
|
||||
this.yLabels = [];
|
||||
// Put the values into the ticks array
|
||||
for (var j = niceMin; j <= niceMax; j += spacing) {
|
||||
this.ticks.push(j);
|
||||
}
|
||||
}
|
||||
|
||||
helpers.each(this.ticks, function(tick, index, ticks) {
|
||||
var label;
|
||||
if (this.options.position == "left" || this.options.position == "right") {
|
||||
// We are in a vertical orientation. The top value is the highest. So reverse the array
|
||||
this.ticks.reverse();
|
||||
}
|
||||
|
||||
if (this.options.labels.userCallback) {
|
||||
// If the user provided a callback for label generation, use that as first priority
|
||||
label = this.options.labels.userCallback(tick, index, ticks);
|
||||
} else if (this.options.labels.template) {
|
||||
// else fall back to the template string
|
||||
label = helpers.template(this.options.labels.template, {
|
||||
value: tick
|
||||
});
|
||||
}
|
||||
// At this point, we need to update our max and min given the tick values since we have expanded the
|
||||
// range of the scale
|
||||
this.max = helpers.max(this.ticks);
|
||||
this.min = helpers.min(this.ticks);
|
||||
},
|
||||
buildYLabels: function() {
|
||||
this.yLabels = [];
|
||||
|
||||
this.yLabels.push(label ? label : "");
|
||||
}, this);
|
||||
},
|
||||
getCircumference: function() {
|
||||
return ((Math.PI * 2) / this.valuesCount);
|
||||
},
|
||||
setScaleSize: function() {
|
||||
/*
|
||||
* Right, this is really confusing and there is a lot of maths going on here
|
||||
* The gist of the problem is here: https://gist.github.com/nnnick/696cc9c55f4b0beb8fe9
|
||||
*
|
||||
* Reaction: https://dl.dropboxusercontent.com/u/34601363/toomuchscience.gif
|
||||
*
|
||||
* Solution:
|
||||
*
|
||||
* We assume the radius of the polygon is half the size of the canvas at first
|
||||
* at each index we check if the text overlaps.
|
||||
*
|
||||
* Where it does, we store that angle and that index.
|
||||
*
|
||||
* After finding the largest index and angle we calculate how much we need to remove
|
||||
* from the shape radius to move the point inwards by that x.
|
||||
*
|
||||
* We average the left and right distances to get the maximum shape radius that can fit in the box
|
||||
* along with labels.
|
||||
*
|
||||
* Once we have that, we can find the centre point for the chart, by taking the x text protrusion
|
||||
* on each side, removing that from the size, halving it and adding the left x protrusion width.
|
||||
*
|
||||
* This will mean we have a shape fitted to the canvas, as large as it can be with the labels
|
||||
* and position it in the most space efficient manner
|
||||
*
|
||||
* https://dl.dropboxusercontent.com/u/34601363/yeahscience.gif
|
||||
*/
|
||||
helpers.each(this.ticks, function(tick, index, ticks) {
|
||||
var label;
|
||||
|
||||
if (this.options.labels.userCallback) {
|
||||
// If the user provided a callback for label generation, use that as first priority
|
||||
label = this.options.labels.userCallback(tick, index, ticks);
|
||||
} else if (this.options.labels.template) {
|
||||
// else fall back to the template string
|
||||
label = helpers.template(this.options.labels.template, {
|
||||
value: tick
|
||||
});
|
||||
}
|
||||
|
||||
this.yLabels.push(label ? label : "");
|
||||
}, this);
|
||||
},
|
||||
getCircumference: function() {
|
||||
return ((Math.PI * 2) / this.valuesCount);
|
||||
},
|
||||
setScaleSize: function() {
|
||||
/*
|
||||
* Right, this is really confusing and there is a lot of maths going on here
|
||||
* The gist of the problem is here: https://gist.github.com/nnnick/696cc9c55f4b0beb8fe9
|
||||
*
|
||||
* Reaction: https://dl.dropboxusercontent.com/u/34601363/toomuchscience.gif
|
||||
*
|
||||
* Solution:
|
||||
*
|
||||
* We assume the radius of the polygon is half the size of the canvas at first
|
||||
* at each index we check if the text overlaps.
|
||||
*
|
||||
* Where it does, we store that angle and that index.
|
||||
*
|
||||
* After finding the largest index and angle we calculate how much we need to remove
|
||||
* from the shape radius to move the point inwards by that x.
|
||||
*
|
||||
* We average the left and right distances to get the maximum shape radius that can fit in the box
|
||||
* along with labels.
|
||||
*
|
||||
* Once we have that, we can find the centre point for the chart, by taking the x text protrusion
|
||||
* on each side, removing that from the size, halving it and adding the left x protrusion width.
|
||||
*
|
||||
* This will mean we have a shape fitted to the canvas, as large as it can be with the labels
|
||||
* and position it in the most space efficient manner
|
||||
*
|
||||
* https://dl.dropboxusercontent.com/u/34601363/yeahscience.gif
|
||||
*/
|
||||
|
||||
|
||||
// Get maximum radius of the polygon. Either half the height (minus the text width) or half the width.
|
||||
// Use this to calculate the offset + change. - Make sure L/R protrusion is at least 0 to stop issues with centre points
|
||||
var largestPossibleRadius = helpers.min([(this.height / 2 - this.options.pointLabels.fontSize - 5), this.width / 2]),
|
||||
pointPosition,
|
||||
i,
|
||||
textWidth,
|
||||
halfTextWidth,
|
||||
furthestRight = this.width,
|
||||
furthestRightIndex,
|
||||
furthestRightAngle,
|
||||
furthestLeft = 0,
|
||||
furthestLeftIndex,
|
||||
furthestLeftAngle,
|
||||
xProtrusionLeft,
|
||||
xProtrusionRight,
|
||||
radiusReductionRight,
|
||||
radiusReductionLeft,
|
||||
maxWidthRadius;
|
||||
this.ctx.font = helpers.fontString(this.options.pointLabels.fontSize, this.options.pointLabels.fontStyle, this.options.pointLabels.fontFamily);
|
||||
for (i = 0; i < this.valuesCount; i++) {
|
||||
// 5px to space the text slightly out - similar to what we do in the draw function.
|
||||
pointPosition = this.getPointPosition(i, largestPossibleRadius);
|
||||
textWidth = this.ctx.measureText(helpers.template(this.options.labels.template, {
|
||||
value: this.labels[i]
|
||||
})).width + 5;
|
||||
if (i === 0 || i === this.valuesCount / 2) {
|
||||
// If we're at index zero, or exactly the middle, we're at exactly the top/bottom
|
||||
// of the radar chart, so text will be aligned centrally, so we'll half it and compare
|
||||
// w/left and right text sizes
|
||||
halfTextWidth = textWidth / 2;
|
||||
if (pointPosition.x + halfTextWidth > furthestRight) {
|
||||
furthestRight = pointPosition.x + halfTextWidth;
|
||||
furthestRightIndex = i;
|
||||
}
|
||||
if (pointPosition.x - halfTextWidth < furthestLeft) {
|
||||
furthestLeft = pointPosition.x - halfTextWidth;
|
||||
furthestLeftIndex = i;
|
||||
}
|
||||
} else if (i < this.valuesCount / 2) {
|
||||
// Less than half the values means we'll left align the text
|
||||
if (pointPosition.x + textWidth > furthestRight) {
|
||||
furthestRight = pointPosition.x + textWidth;
|
||||
furthestRightIndex = i;
|
||||
}
|
||||
} else if (i > this.valuesCount / 2) {
|
||||
// More than half the values means we'll right align the text
|
||||
if (pointPosition.x - textWidth < furthestLeft) {
|
||||
furthestLeft = pointPosition.x - textWidth;
|
||||
furthestLeftIndex = i;
|
||||
}
|
||||
}
|
||||
}
|
||||
// Get maximum radius of the polygon. Either half the height (minus the text width) or half the width.
|
||||
// Use this to calculate the offset + change. - Make sure L/R protrusion is at least 0 to stop issues with centre points
|
||||
var largestPossibleRadius = helpers.min([(this.height / 2 - this.options.pointLabels.fontSize - 5), this.width / 2]),
|
||||
pointPosition,
|
||||
i,
|
||||
textWidth,
|
||||
halfTextWidth,
|
||||
furthestRight = this.width,
|
||||
furthestRightIndex,
|
||||
furthestRightAngle,
|
||||
furthestLeft = 0,
|
||||
furthestLeftIndex,
|
||||
furthestLeftAngle,
|
||||
xProtrusionLeft,
|
||||
xProtrusionRight,
|
||||
radiusReductionRight,
|
||||
radiusReductionLeft,
|
||||
maxWidthRadius;
|
||||
this.ctx.font = helpers.fontString(this.options.pointLabels.fontSize, this.options.pointLabels.fontStyle, this.options.pointLabels.fontFamily);
|
||||
for (i = 0; i < this.valuesCount; i++) {
|
||||
// 5px to space the text slightly out - similar to what we do in the draw function.
|
||||
pointPosition = this.getPointPosition(i, largestPossibleRadius);
|
||||
textWidth = this.ctx.measureText(helpers.template(this.options.labels.template, {
|
||||
value: this.labels[i]
|
||||
})).width + 5;
|
||||
if (i === 0 || i === this.valuesCount / 2) {
|
||||
// If we're at index zero, or exactly the middle, we're at exactly the top/bottom
|
||||
// of the radar chart, so text will be aligned centrally, so we'll half it and compare
|
||||
// w/left and right text sizes
|
||||
halfTextWidth = textWidth / 2;
|
||||
if (pointPosition.x + halfTextWidth > furthestRight) {
|
||||
furthestRight = pointPosition.x + halfTextWidth;
|
||||
furthestRightIndex = i;
|
||||
}
|
||||
if (pointPosition.x - halfTextWidth < furthestLeft) {
|
||||
furthestLeft = pointPosition.x - halfTextWidth;
|
||||
furthestLeftIndex = i;
|
||||
}
|
||||
} else if (i < this.valuesCount / 2) {
|
||||
// Less than half the values means we'll left align the text
|
||||
if (pointPosition.x + textWidth > furthestRight) {
|
||||
furthestRight = pointPosition.x + textWidth;
|
||||
furthestRightIndex = i;
|
||||
}
|
||||
} else if (i > this.valuesCount / 2) {
|
||||
// More than half the values means we'll right align the text
|
||||
if (pointPosition.x - textWidth < furthestLeft) {
|
||||
furthestLeft = pointPosition.x - textWidth;
|
||||
furthestLeftIndex = i;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
xProtrusionLeft = furthestLeft;
|
||||
xProtrusionLeft = furthestLeft;
|
||||
|
||||
xProtrusionRight = Math.ceil(furthestRight - this.width);
|
||||
xProtrusionRight = Math.ceil(furthestRight - this.width);
|
||||
|
||||
furthestRightAngle = this.getIndexAngle(furthestRightIndex);
|
||||
furthestRightAngle = this.getIndexAngle(furthestRightIndex);
|
||||
|
||||
furthestLeftAngle = this.getIndexAngle(furthestLeftIndex);
|
||||
furthestLeftAngle = this.getIndexAngle(furthestLeftIndex);
|
||||
|
||||
radiusReductionRight = xProtrusionRight / Math.sin(furthestRightAngle + Math.PI / 2);
|
||||
radiusReductionRight = xProtrusionRight / Math.sin(furthestRightAngle + Math.PI / 2);
|
||||
|
||||
radiusReductionLeft = xProtrusionLeft / Math.sin(furthestLeftAngle + Math.PI / 2);
|
||||
radiusReductionLeft = xProtrusionLeft / Math.sin(furthestLeftAngle + Math.PI / 2);
|
||||
|
||||
// Ensure we actually need to reduce the size of the chart
|
||||
radiusReductionRight = (helpers.isNumber(radiusReductionRight)) ? radiusReductionRight : 0;
|
||||
radiusReductionLeft = (helpers.isNumber(radiusReductionLeft)) ? radiusReductionLeft : 0;
|
||||
// Ensure we actually need to reduce the size of the chart
|
||||
radiusReductionRight = (helpers.isNumber(radiusReductionRight)) ? radiusReductionRight : 0;
|
||||
radiusReductionLeft = (helpers.isNumber(radiusReductionLeft)) ? radiusReductionLeft : 0;
|
||||
|
||||
this.drawingArea = largestPossibleRadius - (radiusReductionLeft + radiusReductionRight) / 2;
|
||||
this.drawingArea = largestPossibleRadius - (radiusReductionLeft + radiusReductionRight) / 2;
|
||||
|
||||
//this.drawingArea = min([maxWidthRadius, (this.height - (2 * (this.pointLabelFontSize + 5)))/2])
|
||||
this.setCenterPoint(radiusReductionLeft, radiusReductionRight);
|
||||
//this.drawingArea = min([maxWidthRadius, (this.height - (2 * (this.pointLabelFontSize + 5)))/2])
|
||||
this.setCenterPoint(radiusReductionLeft, radiusReductionRight);
|
||||
|
||||
},
|
||||
setCenterPoint: function(leftMovement, rightMovement) {
|
||||
},
|
||||
setCenterPoint: function(leftMovement, rightMovement) {
|
||||
|
||||
var maxRight = this.width - rightMovement - this.drawingArea,
|
||||
maxLeft = leftMovement + this.drawingArea;
|
||||
var maxRight = this.width - rightMovement - this.drawingArea,
|
||||
maxLeft = leftMovement + this.drawingArea;
|
||||
|
||||
this.xCenter = (maxLeft + maxRight) / 2;
|
||||
// Always vertically in the centre as the text height doesn't change
|
||||
this.yCenter = (this.height / 2);
|
||||
},
|
||||
this.xCenter = (maxLeft + maxRight) / 2;
|
||||
// Always vertically in the centre as the text height doesn't change
|
||||
this.yCenter = (this.height / 2);
|
||||
},
|
||||
|
||||
getIndexAngle: function(index) {
|
||||
var angleMultiplier = (Math.PI * 2) / this.valuesCount;
|
||||
// Start from the top instead of right, so remove a quarter of the circle
|
||||
getIndexAngle: function(index) {
|
||||
var angleMultiplier = (Math.PI * 2) / this.valuesCount;
|
||||
// Start from the top instead of right, so remove a quarter of the circle
|
||||
|
||||
return index * angleMultiplier - (Math.PI / 2);
|
||||
},
|
||||
getPointPosition: function(index, distanceFromCenter) {
|
||||
var thisAngle = this.getIndexAngle(index);
|
||||
return {
|
||||
x: (Math.cos(thisAngle) * distanceFromCenter) + this.xCenter,
|
||||
y: (Math.sin(thisAngle) * distanceFromCenter) + this.yCenter
|
||||
};
|
||||
},
|
||||
draw: function() {
|
||||
if (this.options.display) {
|
||||
var ctx = this.ctx;
|
||||
helpers.each(this.yLabels, function(label, index) {
|
||||
// Don't draw a centre value
|
||||
if (index > 0) {
|
||||
var yCenterOffset = index * (this.drawingArea / Math.max(this.ticks.length, 1)),
|
||||
yHeight = this.yCenter - yCenterOffset,
|
||||
pointPosition;
|
||||
return index * angleMultiplier - (Math.PI / 2);
|
||||
},
|
||||
getPointPosition: function(index, distanceFromCenter) {
|
||||
var thisAngle = this.getIndexAngle(index);
|
||||
return {
|
||||
x: (Math.cos(thisAngle) * distanceFromCenter) + this.xCenter,
|
||||
y: (Math.sin(thisAngle) * distanceFromCenter) + this.yCenter
|
||||
};
|
||||
},
|
||||
draw: function() {
|
||||
if (this.options.display) {
|
||||
var ctx = this.ctx;
|
||||
helpers.each(this.yLabels, function(label, index) {
|
||||
// Don't draw a centre value
|
||||
if (index > 0) {
|
||||
var yCenterOffset = index * (this.drawingArea / Math.max(this.ticks.length, 1)),
|
||||
yHeight = this.yCenter - yCenterOffset,
|
||||
pointPosition;
|
||||
|
||||
// Draw circular lines around the scale
|
||||
if (this.options.gridLines.show) {
|
||||
ctx.strokeStyle = this.options.gridLines.color;
|
||||
ctx.lineWidth = this.options.gridLines.lineWidth;
|
||||
// Draw circular lines around the scale
|
||||
if (this.options.gridLines.show) {
|
||||
ctx.strokeStyle = this.options.gridLines.color;
|
||||
ctx.lineWidth = this.options.gridLines.lineWidth;
|
||||
|
||||
if (this.options.lineArc) {
|
||||
ctx.beginPath();
|
||||
ctx.arc(this.xCenter, this.yCenter, yCenterOffset, 0, Math.PI * 2);
|
||||
ctx.closePath();
|
||||
ctx.stroke();
|
||||
} else {
|
||||
ctx.beginPath();
|
||||
for (var i = 0; i < this.valuesCount; i++) {
|
||||
pointPosition = this.getPointPosition(i, this.calculateCenterOffset(this.ticks[index]));
|
||||
if (i === 0) {
|
||||
ctx.moveTo(pointPosition.x, pointPosition.y);
|
||||
} else {
|
||||
ctx.lineTo(pointPosition.x, pointPosition.y);
|
||||
}
|
||||
}
|
||||
ctx.closePath();
|
||||
ctx.stroke();
|
||||
}
|
||||
}
|
||||
if (this.options.lineArc) {
|
||||
ctx.beginPath();
|
||||
ctx.arc(this.xCenter, this.yCenter, yCenterOffset, 0, Math.PI * 2);
|
||||
ctx.closePath();
|
||||
ctx.stroke();
|
||||
} else {
|
||||
ctx.beginPath();
|
||||
for (var i = 0; i < this.valuesCount; i++) {
|
||||
pointPosition = this.getPointPosition(i, this.calculateCenterOffset(this.ticks[index]));
|
||||
if (i === 0) {
|
||||
ctx.moveTo(pointPosition.x, pointPosition.y);
|
||||
} else {
|
||||
ctx.lineTo(pointPosition.x, pointPosition.y);
|
||||
}
|
||||
}
|
||||
ctx.closePath();
|
||||
ctx.stroke();
|
||||
}
|
||||
}
|
||||
|
||||
if (this.options.labels.show) {
|
||||
ctx.font = helpers.fontString(this.options.labels.fontSize, this.options.labels.fontStyle, this.options.labels.fontFamily);
|
||||
if (this.options.labels.show) {
|
||||
ctx.font = helpers.fontString(this.options.labels.fontSize, this.options.labels.fontStyle, this.options.labels.fontFamily);
|
||||
|
||||
if (this.showLabelBackdrop) {
|
||||
var labelWidth = ctx.measureText(label).width;
|
||||
ctx.fillStyle = this.options.labels.backdropColor;
|
||||
ctx.fillRect(
|
||||
this.xCenter - labelWidth / 2 - this.options.labels.backdropPaddingX,
|
||||
yHeight - this.fontSize / 2 - this.options.labels.backdropPaddingY,
|
||||
labelWidth + this.options.labels.backdropPaddingX * 2,
|
||||
this.options.labels.fontSize + this.options.lables.backdropPaddingY * 2
|
||||
);
|
||||
}
|
||||
if (this.showLabelBackdrop) {
|
||||
var labelWidth = ctx.measureText(label).width;
|
||||
ctx.fillStyle = this.options.labels.backdropColor;
|
||||
ctx.fillRect(
|
||||
this.xCenter - labelWidth / 2 - this.options.labels.backdropPaddingX,
|
||||
yHeight - this.fontSize / 2 - this.options.labels.backdropPaddingY,
|
||||
labelWidth + this.options.labels.backdropPaddingX * 2,
|
||||
this.options.labels.fontSize + this.options.lables.backdropPaddingY * 2
|
||||
);
|
||||
}
|
||||
|
||||
ctx.textAlign = 'center';
|
||||
ctx.textBaseline = "middle";
|
||||
ctx.fillStyle = this.options.labels.fontColor;
|
||||
ctx.fillText(label, this.xCenter, yHeight);
|
||||
}
|
||||
}
|
||||
}, this);
|
||||
ctx.textAlign = 'center';
|
||||
ctx.textBaseline = "middle";
|
||||
ctx.fillStyle = this.options.labels.fontColor;
|
||||
ctx.fillText(label, this.xCenter, yHeight);
|
||||
}
|
||||
}
|
||||
}, this);
|
||||
|
||||
if (!this.options.lineArc) {
|
||||
ctx.lineWidth = this.options.angleLines.lineWidth;
|
||||
ctx.strokeStyle = this.options.angleLines.color;
|
||||
if (!this.options.lineArc) {
|
||||
ctx.lineWidth = this.options.angleLines.lineWidth;
|
||||
ctx.strokeStyle = this.options.angleLines.color;
|
||||
|
||||
for (var i = this.valuesCount - 1; i >= 0; i--) {
|
||||
if (this.options.angleLines.show) {
|
||||
var outerPosition = this.getPointPosition(i, this.calculateCenterOffset(this.max));
|
||||
ctx.beginPath();
|
||||
ctx.moveTo(this.xCenter, this.yCenter);
|
||||
ctx.lineTo(outerPosition.x, outerPosition.y);
|
||||
ctx.stroke();
|
||||
ctx.closePath();
|
||||
}
|
||||
// Extra 3px out for some label spacing
|
||||
var pointLabelPosition = this.getPointPosition(i, this.calculateCenterOffset(this.max) + 5);
|
||||
ctx.font = helpers.fontString(this.options.pointLabels.fontSize, this.options.pointLabels.fontStyle, this.options.pointLabels.fontFamily);
|
||||
ctx.fillStyle = this.options.pointLabels.fontColor;
|
||||
for (var i = this.valuesCount - 1; i >= 0; i--) {
|
||||
if (this.options.angleLines.show) {
|
||||
var outerPosition = this.getPointPosition(i, this.calculateCenterOffset(this.max));
|
||||
ctx.beginPath();
|
||||
ctx.moveTo(this.xCenter, this.yCenter);
|
||||
ctx.lineTo(outerPosition.x, outerPosition.y);
|
||||
ctx.stroke();
|
||||
ctx.closePath();
|
||||
}
|
||||
// Extra 3px out for some label spacing
|
||||
var pointLabelPosition = this.getPointPosition(i, this.calculateCenterOffset(this.max) + 5);
|
||||
ctx.font = helpers.fontString(this.options.pointLabels.fontSize, this.options.pointLabels.fontStyle, this.options.pointLabels.fontFamily);
|
||||
ctx.fillStyle = this.options.pointLabels.fontColor;
|
||||
|
||||
var labelsCount = this.labels.length,
|
||||
halfLabelsCount = this.labels.length / 2,
|
||||
quarterLabelsCount = halfLabelsCount / 2,
|
||||
upperHalf = (i < quarterLabelsCount || i > labelsCount - quarterLabelsCount),
|
||||
exactQuarter = (i === quarterLabelsCount || i === labelsCount - quarterLabelsCount);
|
||||
if (i === 0) {
|
||||
ctx.textAlign = 'center';
|
||||
} else if (i === halfLabelsCount) {
|
||||
ctx.textAlign = 'center';
|
||||
} else if (i < halfLabelsCount) {
|
||||
ctx.textAlign = 'left';
|
||||
} else {
|
||||
ctx.textAlign = 'right';
|
||||
}
|
||||
var labelsCount = this.labels.length,
|
||||
halfLabelsCount = this.labels.length / 2,
|
||||
quarterLabelsCount = halfLabelsCount / 2,
|
||||
upperHalf = (i < quarterLabelsCount || i > labelsCount - quarterLabelsCount),
|
||||
exactQuarter = (i === quarterLabelsCount || i === labelsCount - quarterLabelsCount);
|
||||
if (i === 0) {
|
||||
ctx.textAlign = 'center';
|
||||
} else if (i === halfLabelsCount) {
|
||||
ctx.textAlign = 'center';
|
||||
} else if (i < halfLabelsCount) {
|
||||
ctx.textAlign = 'left';
|
||||
} else {
|
||||
ctx.textAlign = 'right';
|
||||
}
|
||||
|
||||
// Set the correct text baseline based on outer positioning
|
||||
if (exactQuarter) {
|
||||
ctx.textBaseline = 'middle';
|
||||
} else if (upperHalf) {
|
||||
ctx.textBaseline = 'bottom';
|
||||
} else {
|
||||
ctx.textBaseline = 'top';
|
||||
}
|
||||
// Set the correct text baseline based on outer positioning
|
||||
if (exactQuarter) {
|
||||
ctx.textBaseline = 'middle';
|
||||
} else if (upperHalf) {
|
||||
ctx.textBaseline = 'bottom';
|
||||
} else {
|
||||
ctx.textBaseline = 'top';
|
||||
}
|
||||
|
||||
ctx.fillText(this.labels[i], pointLabelPosition.x, pointLabelPosition.y);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
});
|
||||
Chart.scales.registerScaleType("radialLinear", LinearRadialScale);
|
||||
ctx.fillText(this.labels[i], pointLabelPosition.x, pointLabelPosition.y);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
});
|
||||
Chart.scaleService.registerScaleType("radialLinear", LinearRadialScale);
|
||||
|
||||
|
||||
}).call(this);
|
||||
|
||||
Reference in New Issue
Block a user