minicanvas

Simple library to quickly generate canvas images (for the browser and for nodejs).

MiniCanvas.create(200, 200)
  .checkboard()
  .border(2, 0x000000FF)
  .rect(20, 20, 180, 180, 2, 0xCC7700CC, 0x00CC7766)
  .display("checkboard");

MiniCanvas.create(200, 200)
  .checkboard()
  .box(function(x, y) : Rgba
    return Hsla.create(x * 360, 1, y, 0.75))
  .display("rainbowAlpha");

MiniCanvas.create(200, 200)
  .box(function(x, y) : Rgba
    return Hsl.create(x * 360, 1, y))
  .display("rainbow");

MiniCanvas.create(200, 20)
  .gradientHorizontal(function(x) : Rgba
    return Hsv.create(x * 360, 1, 1))
  .display("gradientHorizontal");

MiniCanvas.create(20, 200)
  .gradientVertical(function(y) : Rgba
    return Hsv.create(y * 360, 1, 1))
  .display("gradientVertical");

var red   = Hsl.create(340, 0.5, 0.5),
    green = Hsl.create(120, 0.5, 0.5);

MiniCanvas.create(200, 90)
  .palette([[
    red.analogous().left,
    red,
    red.analogous().right
  ], [
    green.split().left,
    green,
    green.split().right
  ]])
  .display("palette");

MiniCanvas.create(200, 200)
  .grid()
  .cross()
  .display("grid");

MiniCanvas.create(200, 200)
  .checkboard()
  .onDown(function(e)
    e.mini
      .dot(e.x, e.y, 6, Color.blue)
      .onMove(function(e) e.mini.dot(e.x, e.y))
      .onTrail(function(e) e.mini.line(e.x0, e.y0, e.x1, e.y1)))
  .onUp(function(e)
    e.mini
      .dot(e.x, e.y, 8, Color.aquamarine)
      .offMove()
      .offTrail())
  .animate()
  .down(30, 170)
  .up(40, 30).sleep(10)
  .down(25, 25)
  .move(100, 90)
  .up(165, 20).sleep(10)
  .down(150, 30)
  .up(165, 170).sleep(40)
  .done()
  .display("events");