1 files changed, 106 insertions, 0 deletions
diff --git a/src/pointarray.js b/src/pointarray.js
new file mode 100644
index 0000000..8df49ae
--- /dev/null
+++ b/src/pointarray.js
@@ -0,0 +1,106 @@
+// Poly points array
+SVG.PointArray = function() {
+  this.constructor.apply(this, arguments)
+}
+
+// Inherit from SVG.Array
+SVG.PointArray.prototype = new SVG.Array
+
+SVG.extend(SVG.PointArray, {
+  // Convert array to string
+  toString: function() {
+    /* convert to a poly point string */
+    for (var i = 0, il = this.value.length, array = []; i < il; i++)
+      array.push(this.value[i].join(','))
+
+    return array.join(' ')
+  }
+  // Get morphed array at given position
+, at: function(pos) {
+    /* make sure a destination is defined */
+    if (!this.destination) return this
+
+    /* generate morphed point string */
+    for (var i = 0, il = this.value.length, array = []; i < il; i++)
+      array.push([
+        this.value[i][0] + (this.destination[i][0] - this.value[i][0]) * pos
+      , this.value[i][1] + (this.destination[i][1] - this.value[i][1]) * pos
+      ])
+
+    return new SVG.PointArray(array)
+  }
+  // Parse point string
+, parse: function(array) {
+    array = array.valueOf()
+
+    /* if already is an array, no need to parse it */
+    if (Array.isArray(array)) return array
+
+    /* split points */
+    array = this.split(array)
+
+    /* parse points */
+    for (var i = 0, il = array.length, p, points = []; i < il; i++) {
+      p = array[i].split(',')
+      points.push([parseFloat(p[0]), parseFloat(p[1])])
+    }
+
+    return points
+  }
+  // Move point string
+, move: function(x, y) {
+    var box = this.bbox()
+
+    /* get relative offset */
+    x -= box.x
+    y -= box.y
+
+    /* move every point */
+    if (!isNaN(x) && !isNaN(y))
+      for (var i = this.value.length - 1; i >= 0; i--)
+        this.value[i] = [this.value[i][0] + x, this.value[i][1] + y]
+
+    return this
+  }
+  // Resize poly string
+, size: function(width, height) {
+    var i, box = this.bbox()
+
+    /* recalculate position of all points according to new size */
+    for (i = this.value.length - 1; i >= 0; i--) {
+      this.value[i][0] = ((this.value[i][0] - box.x) * width)  / box.width  + box.x
+      this.value[i][1] = ((this.value[i][1] - box.y) * height) / box.height + box.x
+    }
+
+    return this
+  }
+  // Get bounding box of points
+, bbox: function() {
+    if (this.value.length == 0)
+      return { x: 0, y: 0, width: 0, height: 0 }
+
+    var i
+    , x = this.value[0][0]
+    , y = this.value[0][1]
+    , box = { x: x, y: y }
+    
+    /* find position */
+    for (i = this.value.length - 1; i >= 0; i--) {
+      if (this.value[i][0] < box.x)
+        box.x = this.value[i][0]
+      if (this.value[i][1] < box.y)
+        box.y = this.value[i][1]
+      if (this.value[i][0] > x)
+        x = this.value[i][0]
+      if (this.value[i][1] > y)
+        y = this.value[i][1]
+    }
+
+    /* calculate size */
+    box.width  = x - box.x
+    box.height = y - box.y
+
+    return box
+  }
+
+})
+\ No newline at end of file