#myCanvas
setTransform
1,0,-1,1,0,0|1,0,-0.5,1,0,0|1,0,-0.2,1,0,0|1,0,-0.1,1,0,0|1,0,0,1,0,0|1,0,0.1,1,0,0|1,0,0.2,1,0,0|1,0,0.5,1,0,0|1,0,1,1,0,0
ctx.setTransform(#val);
ctx.fillStyle='lightblue';
ctx.fillRect(10,10,250,100);
ctx.fillStyle='red';
ctx.font='30px Arial';
ctx.fillText('Transform', 60,80);