Function PImage

examples/js/processing.js:8481–8653

(aWidth, aHeight, aFormat)

    }

    var PImage = function PImage(aWidth, aHeight, aFormat) {
      this.get = function(x, y, w, h) {
        if (!arguments.length) {
          return p.get(this);
        } else if (arguments.length === 2) {
          return p.get(x, y, this);
        } else if (arguments.length === 4) {
          return p.get(x, y, w, h, this);
        }
      };

      this.set = function(x, y, c) {
        p.set(x, y, c, this);
      };

      this.blend = function(srcImg, x, y, width, height, dx, dy, dwidth, dheight, MODE) {
        if (arguments.length === 9) {
          p.blend(this, srcImg, x, y, width, height, dx, dy, dwidth, dheight, this);
        } else if (arguments.length === 10) {
          p.blend(srcImg, x, y, width, height, dx, dy, dwidth, dheight, MODE, this);
        }
      };

      this.copy = function(srcImg, sx, sy, swidth, sheight, dx, dy, dwidth, dheight) {
        if (arguments.length === 8) {
          p.blend(this, srcImg, sx, sy, swidth, sheight, dx, dy, dwidth, p.REPLACE, this);
        } else if (arguments.length === 9) {
          p.blend(srcImg, sx, sy, swidth, sheight, dx, dy, dwidth, dheight, p.REPLACE, this);
        }
      };

      this.filter = function(mode, param) {
        if (arguments.length === 2) {
          p.filter(mode, param, this);
        } else if (arguments.length === 1) {
          // no param specified, send null to show its invalid
          p.filter(mode, null, this);
        }
      };

      this.save = function(file){
        p.save(file,this);
      };

      this.resize = function(w, h) {
        if (this.width !== 0 || this.height !== 0) {
          // make aspect ratio if w or h is 0
          if (w === 0 && h !== 0) {
            w = this.width / this.height * h;
          } else if (h === 0 && w !== 0) {
            h = w / (this.width / this.height);
          }
          // put 'this.imageData' into a new canvas
          var canvas = getCanvasData(this.imageData).canvas;
          // pull imageData object out of canvas into ImageData object
          var imageData = getCanvasData(canvas, w, h).context.getImageData(0, 0, w, h);
          // set this as new pimage
          this.fromImageData(imageData);