createVMobjectGradient method
Implementation
CanvasGradient createVMobjectGradient(VMobject vmob, List<Color> colors) {
var startEnd = vmob.getGradientStartAndEndPoints();
var points =
transformPointsPreDisplay(vmob, [startEnd.item1, startEnd.item2]);
var gradient = ctx.createLinearGradient(
points[0].x, points[0].y, points[1].x, points[1].y);
var step = 1 / (colors.length - 1);
var offsets = arange(start: 0, end: step + 1, step: step).getColumn(0);
for (var i in range(end: colors.length)) {
var color = display.applyColorTransformation(colors[i]);
var offset = offsets[i];
gradient.addColorStop(offset, color.toRGBAString());
}
return gradient;
}