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Added a scaleBackgroundColors configuration option for Radial charts, to add a background color for each axis in the chart.

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Rahul Vaidya
2015-04-16 01:23:09 -07:00
parent c7f52f516c
commit 7045fdbb5a
2 changed files with 18 additions and 0 deletions
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17
src/Chart.Core.js
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@@ -2011,6 +2011,23 @@
ctx.lineTo(outerPosition.x, outerPosition.y);
ctx.stroke();
ctx.closePath();
if (this.backgroundColors) {
var previousOuterPosition = this.getPointPosition(i === 0 ? this.valuesCount - 1 : i - 1, this.calculateCenterOffset(this.max));
var nextOuterPosition = this.getPointPosition(i === this.valuesCount - 1 ? 0 : i + 1, this.calculateCenterOffset(this.max));
var previousOuterHalfway = { x: (previousOuterPosition.x + outerPosition.x) / 2, y: (previousOuterPosition.y + outerPosition.y) / 2 };
var nextOuterHalfway = { x: (outerPosition.x + nextOuterPosition.x) / 2, y: (outerPosition.y + nextOuterPosition.y) / 2 };
ctx.beginPath();
ctx.moveTo(this.xCenter, this.yCenter);
ctx.lineTo(previousOuterHalfway.x, previousOuterHalfway.y);
ctx.lineTo(outerPosition.x, outerPosition.y);
ctx.lineTo(nextOuterHalfway.x, nextOuterHalfway.y);
ctx.fillStyle = this.backgroundColors[i];
ctx.fill();
ctx.closePath();
}
}
// Extra 3px out for some label spacing
var pointLabelPosition = this.getPointPosition(i, this.calculateCenterOffset(this.max) + 5);

1
src/Chart.Radar.js
View File

@@ -174,6 +174,7 @@
showLabels: this.options.scaleShowLabels,
showLabelBackdrop: this.options.scaleShowLabelBackdrop,
backdropColor: this.options.scaleBackdropColor,
backgroundColors: this.options.scaleBackgroundColors,
backdropPaddingY : this.options.scaleBackdropPaddingY,
backdropPaddingX: this.options.scaleBackdropPaddingX,
lineWidth: (this.options.scaleShowLine) ? this.options.scaleLineWidth : 0,