Using javascript with or without Jquery, I need to a create a gradient of colours based on a start and finish color. Is this possible to do programmatically?  The end colour is only ever going to be darker shade of the start colour and it's for...
I was trying to use Raphael JS graphics library. I would like to use the attribute gradient which should accept an object. Documentation says to refer to SVG specs. I found the gradient object in SVG, for instance   <linearGradient id="myFillG...
Is it possible to calculate a color in a middle of a gradient?  var color1 = 'FF0000'; var color2 = '00FF00';  // 50% between the two colors, should return '808000' var middle = gradient(color1, color2, 0.5);    I only have tw...
So I tried to make a gradient fill for the ChartJS doughnut chart, but this only works horizontal and not in a circle.  This is the code that I'm using:     var ctx = document.getElementById("chart-area").getContext("2d");     var...
This shows an example of how to create a two-color gradient along a THREE.js line:  Color Gradient for Three.js line  How do you implement a multi-stop color gradient along a line?  It looks like attributes will only interpolate across two values (I...
I am experimenting on this color control panel where a user can change the look and feel of the page using a slide in control panel. An added complexity is that the slide-in panel is in parent window where as the page that the changes are made to is...
I'm trying to interpolate between two colours in HSV colour space to produce a smooth colour gradient.  I'm using a linear interpolation, eg:  h = (1 - p) * h1 + p * h2 s = (1 - p) * s1 + p * s2 v = (1 - p) * v1 + p * v2   (where p is the per...
How to draw a circle with gradient color? Say, a gradient from yellow to blue.  Normally, to create a circle in yellow we can use the following code:  var cdata=[50,40]; var xscale=40; var xspace =50; var yscale=70;  var svg = d3.select("body"...
I've been following the lessons about transparency and gradients on the Mozilla site: https://developer.mozilla.org/en-US/docs/Web/Guide/HTML/Canvas_tutorial/Applying_styles_and_colors but I have not been able to figure this one out.  I know I ca...
How can I draw a circle with fadeing out gradients?  I mean something like this:    Getting darker and darker......

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