qanvas is a simple canvas wrapper, API is somewhat similar to Raphael.js
Not cross-platform at all, use chrome or expect the unexpected
// Just an enhanced context2d
var paper = qanvas('myCanvasDivId').paper;
// Built-in props
paper.width;
paper.height;
paper.midWidth;
paper.midHeight;
// Built-in method
paper.circle(cx,cy,radius);
paper.halfCircle(cx,cy,radius[,angle,ox,oy]);
paper.ellipse(cx,cy,width,height[,angle,ox,oy]);
paper.halfEllipse(cx,cy,width,height[,angle,ox,oy]);
paper.rect(x,y,width,height[,angle,ox,oy]);
paper.square(x,y,side[,angle,ox,oy]);
paper.quadri(x1,y1,x2,y2,x3,y3,x4,y4[,angle,ox,oy]);
paper.text(x,y,text);
paper.line(x1,y1,x2,y2[,angle,ox,oy]);Styling
//shortcuts
paper.fill('rgba(255,255,255,.3)');
paper.stroke('rgba(255,255,255,.3)');
paper.fastStyle('fillStyle','rgba(255,255,255,.3)');
paper.style({
fillStyle:'rgba(255,255,255,.3)',
lineWidth : 15
});You also got some basic helper in qanvas().paper; :
var paper = qanvas('myCanvasDivId').paper;
paper.helper.c2p(x,y);
// Carthesian to Polar
// Return a coresponding [radius,angle] array
paper.helper.p2c(radius,angle);
// Polar to Carthesian
// Return a coresponding [x,y] array
paper.helper.convert(x,y,ox,oy,angle);
// Return a new [x,y], after having rotate x,y from 'angle' centred on ox, oy(The MIT License)
Copyright (c) 2011 Damien Fayol dam.fayol@gmail.com
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