Javascript examples for Canvas Reference:addColorStop
Create a gradient color from black to white to fill the rectangle
<!DOCTYPE html> <html> <body> <canvas id="myCanvas" width="300" height="250" style="border:1px solid #d3d3d3;"> Your browser does not support the HTML5 canvas tag.</canvas> <script> var c = document.getElementById("myCanvas"); var ctx = c.getContext("2d"); var grd = ctx.createLinearGradient(0, 0, 170, 0); grd.addColorStop(0, "black"); grd.addColorStop(1, "red"); ctx.fillStyle = grd;/* w w w .j a v a 2s. c om*/ ctx.fillRect(20, 20, 150, 150); </script> </body> </html>