Reworked transform()

6 files changed, 164 insertions, 84 deletions

diff --git a/README.md b/README.md
index 4f48b6c..60bb727 100644
--- a/README.md
+++ b/README.md
@@ -129,16 +129,30 @@ rect.attr('x', 50, 'http://www.w3.org/2000/svg');
 
 
 ### Transform
-With the transform attribute elements can be scaled, rotated, translated, skewed... :
+With the transform attribute elements can be scaled, rotated, translated and skewed:
 ```javascript
-rect.transform('rotate(45, 100, 100)');
+rect.transform({
+  rotation: 45,
+  cx:       100,
+  cy:       100
+});
 ```
-These operations are always absolute. If every transformation needs remembered, so multiple rotate operations will be stacked together making them relative to previous operations, a boolean value can be passed as a second argument:
-```javascript
-rect.transform('rotate(45, 100, 100)', true);
+All available translations are:
+```javascript
+rect.transform({
+  x:        _[translation on x-axis]_,
+  y:        _[translation on y-axis]_,
+  rotation: _[degrees]_,
+  cx:       _[x rotation point]_,
+  cy:       _[y rotation point]_,
+  scaleX:   _[scaling on x-axis]_,
+  scaleX:   _[scaling on y-axis]_,
+  skewX:    _[skewing on x-axis]_,
+  skewY:    _[skewing on y-axis]_
+});
 ```
-More details on available transformations can be found here:
-http://www.w3.org/TR/SVG/coords.html#TransformAttribute
+
+Important: matrix transformations are not yet supported.
 
 
 ### Move 
@@ -173,12 +187,14 @@ rect.remove();
 ```javascript
 path.bbox();
 ```
-This will return a SVGRect element as a js object:
+This will return an object with the following values:
 
 ```javascript
 { height: 20, width: 20, y: 20, x: 10, cx: 30, cy: 20 } 
 ```
 
+As opposed to the built-in `getBBox()` method any translations used with the `transform()` method will be taken into account. 
+
 
 ## Syntax sugar
 Fill and stroke are used quite often. Therefore two convenience methods are provided:
@@ -198,15 +214,13 @@ rect.stroke({ color: '#f06', opacity: 0.6, width: 5 });
 ### Rotate
 The 'rotate()' method will automatically rotate elements according to the centre of the element:
 ```javascript
+// rotate(degrees)
 rect.rotate(45);
 ```
 Unless you also define a rotation point:
 ```javascript
-rect.rotate({ deg: 45, x: 100, y: 100 });
-```
-To make the operation relative:
-```javascript
-rect.rotate({ deg: 45, x: 100, y: 100, relative: true });
+// rotate(degrees, cx, cy)
+rect.rotate(45, 100, 100);
 ```
 
 _This functionality requires the sugar.js module which is included in the default distribution._
diff --git a/dist/svg.js b/dist/svg.js
index c810fa0..b7b4adf 100644
--- a/dist/svg.js
+++ b/dist/svg.js
@@ -1,4 +1,4 @@
-/* svg.js v0.1-25-ga2f2323 - svg container element group arrange defs clip gradient doc shape rect circle ellipse path image text sugar - svgjs.com/license */
+/* svg.js v0.1-26-gf301d23 - svg container element group arrange defs clip gradient doc shape rect circle ellipse path image text sugar - svgjs.com/license */
 (function() {
 
   this.SVG = {
@@ -147,6 +147,15 @@
   SVG.Element = function Element(n) {
     this.node = n;
     this.attrs = {};
+    this.trans = {
+      x:        0,
+      y:        0,
+      scaleX:   1,
+      scaleY:   1,
+      rotation: 0,
+      skewX:    0,
+      skewY:    0
+    };
     
     this._s = ('size family weight stretch variant style').split(' ');
   };
@@ -186,7 +195,7 @@
                  a == 'leading' ?
                    this[a] :
                    this.style[a];
-          
+        
         else
           return this.attrs[a];
       
@@ -214,32 +223,60 @@
       return this;
     },
     
-    // transformations
-    transform: function(t, r) {
-      var n = [],
+    transform: function(o) {
+      // act as a getter if the first argument is a string
+      if (typeof o === 'string')
+        return this.trans[o];
+        
+      // ... otherwise continue as a setter
+      var k,
+          t = [],
+          b = this.bbox(),
           s = this.attr('transform') || '',
-          l = s.match(/([a-z]+\([^\)]+\))/g) || [];
+          l = s.match(/[a-z]+\([^\)]+\)/g) || [];
       
-      if (r !== true) {
-        var v = t.match(/^([A-Za-z\-]+)/)[1],
-            r = new RegExp('^' + v);
-        
-        for (var i = 0, s = l.length; i < s; i++)
-          if (!r.test(l[i]))
-            n.push(l[i]);
-        
-      } else
-        n = l;
+      // merge values
+      for (k in this.trans)
+        if (o[k] != null)
+          this.trans[k] = o[k];
+      
+      // alias current transformations
+      o = this.trans;
+      
+      // add rotate
+      if (o.rotation != 0)
+        t.push('rotate(' + o.rotation + ',' + (o.cx != null ? o.cx : b.cx) + ',' + (o.cy != null ? o.cy : b.cy) + ')');
+      
+      // add scale
+      if (o.scaleX != 1 && o.scaleY != 1)
+        t.push('scale(' + o.sx + ',' + o.sy + ')');
+      
+      // add skew on x axis
+      if (o.skewX != 0)
+        t.push('skewX(' + x.skewX + ')');
       
-      n.push(t);
+      // add skew on y axis
+      if (o.skewY != 0)
+        t.push('skewY(' + x.skewY + ')')
       
-      return this.attr('transform', n.join(' '));
+      // add translate
+      if (o.x != 0 && o.y != 0)
+        t.push('translate(' + o.x + ',' + o.y + ')');
+      
+      // add only te required transformations
+      return this.attr('transform', t.join(' '));
     },
-  
+    
     // get bounding box
     bbox: function() {
+      // actual bounding box
       var b = this.node.getBBox();
       
+      // include translations on x an y
+      b.x += this.trans.x;
+      b.y += this.trans.y;
+      
+      // add the center
       b.cx = b.x + b.width / 2;
       b.cy = b.y + b.height / 2;
       
@@ -623,12 +660,12 @@
     
     // set path data
     plot: function(d) {
-      return this.attr('d', d);
+      return this.attr('d', d || 'M0,0L0,0');
     },
     
     // move path using translate
     move: function(x, y) {
-      return this.transform('translate(' + x + ',' + y + ')');
+      return this.transform({ x: x, y: y });
     }
     
   });
@@ -758,18 +795,14 @@
   SVG.extend(SVG.Element, {
     
     // rotation
-    rotate: function(o) {
+    rotate: function(d, x, y) {
       var b = this.bbox();
       
-      if (typeof o == 'number')
-        o = { deg: o };
-      
-      return this.transform(
-        'rotate(' +
-        (o.deg || 0) + ' ' +
-        (o.x == null ? b.cx : o.x) + ' ' +
-        (o.y == null ? b.cx : o.y) + ')',
-      o.relative);
+      return this.transform({
+        rotation: d || 0,
+        cx:       x == null ? b.cx : x,
+        cy:       y == null ? b.cx : y
+      });
     }
     
   });
@@ -779,7 +812,7 @@
     
     // move using translate
     move: function(x, y) {
-      return this.transform('translate(' + x + ' ' + y + ')');
+      return this.transform({ x: x, y: y });
     }
     
   });
@@ -789,9 +822,9 @@
     
     // set font 
     font: function(o) {
-      var a = {};
+      var k, a = {};
       
-      for (var k in o)
+      for (k in o)
         k == 'leading' ?
           a[k] = o[k] :
         k == 'anchor' ?
@@ -801,7 +834,7 @@
           void 0;
       
       return this.attr(a).text(this.content);
-    },
+    }
     
   });
   
diff --git a/dist/svg.min.js b/dist/svg.min.js
index 640492c..43a57dc 100644
--- a/dist/svg.min.js
+++ b/dist/svg.min.js
@@ -1,2 +1,2 @@
-/* svg.js v0.1-25-ga2f2323 - svg container element group arrange defs clip gradient doc shape rect circle ellipse path image text sugar - svgjs.com/license */
-function svg(e){return new SVG.Doc(e)}(function(){function n(){this.constructor.call(this,SVG.create("tspan"))}this.SVG={ns:"http://www.w3.org/2000/svg",xlink:"http://www.w3.org/1999/xlink",create:function(e){return document.createElementNS(this.ns,e)},extend:function(e,t){for(var n in t)e.prototype[n]=t[n]}},SVG.Container={add:function(e,t){return this.has(e)||(t=t==null?this.children().length:t,this.children().splice(t,0,e),this.node.insertBefore(e.node,this.node.childNodes[t]||null),e.parent=this),this},has:function(e){return this.children().indexOf(e)>=0},children:function(){return this._children||(this._children=[])},remove:function(e){return this.removeAt(this.children().indexOf(e))},removeAt:function(e){if(0<=e&&e<this.children().length){var t=this.children()[e];this.children().splice(e,1),this.node.removeChild(t.node),t.parent=null}return this},defs:function(){return this._defs==null&&(this._defs=new SVG.Defs,this.add(this._defs,0)),this._defs},level:function(){var e=this.defs();return this.remove(e).add(e,0),this},group:function(){var e=new SVG.G;return this.add(e),e},rect:function(e,t){var n=(new SVG.Rect).size(e,t);return this.add(n),n},circle:function(e){var t=(new SVG.Circle).size(e);return this.add(t),t},ellipse:function(e,t){var n=(new SVG.Ellipse).size(e,t);return this.add(n),n},path:function(e){var t=(new SVG.Path).plot(e);return this.add(t),t},image:function(e){var t=(new SVG.Image).load(e);return this.add(t),t},text:function(e){var t=(new SVG.Text).text(e);return this.add(t),t},gradient:function(e,t){return this.defs().gradient(e,t)},stage:function(){var e,t=this;return e=function(){document.readyState==="complete"?(t.attr("style","position:absolute;left:0;top:0;"),setTimeout(function(){t.attr("style","position:relative;")},5)):setTimeout(e,10)},e(),this}},SVG.Element=function(t){this.node=t,this.attrs={},this._s="size family weight stretch variant style".split(" ")},SVG.extend(SVG.Element,{move:function(e,t){return this.attr({x:e,y:t})},size:function(e,t){return this.attr({width:e,height:t})},remove:function(){return this.parent!=null?this.parent.remove(this):void 0},parentDoc:function(){return this._parent(SVG.Doc)},attr:function(e,t,n){if(arguments.length<2){if(typeof e!="object")return this._isStyle(e)?e=="text"?this.content:e=="leading"?this[e]:this.style[e]:this.attrs[e];for(t in e)this.attr(t,e[t])}else{this.attrs[e]=t;if(e=="x"&&this._isText())for(var r=this.lines.length-1;r>=0;r--)this.lines[r].attr(e,t);else n!=null?this.node.setAttributeNS(n,e,t):this.node.setAttribute(e,t);this._isStyle(e)&&(e=="text"?this.text(t):e=="leading"?this[e]=t:this.style[e]=t,this.text(this.content))}return this},transform:function(e,t){var n=[],r=this.attr("transform")||"",i=r.match(/([a-z]+\([^\)]+\))/g)||[];if(t!==!0){var s=e.match(/^([A-Za-z\-]+)/)[1],t=new RegExp("^"+s);for(var o=0,r=i.length;o<r;o++)t.test(i[o])||n.push(i[o])}else n=i;return n.push(e),this.attr("transform",n.join(" "))},bbox:function(){var e=this.node.getBBox();return e.cx=e.x+e.width/2,e.cy=e.y+e.height/2,e},_parent:function(e){var t=this;while(t!=null&&!(t instanceof e))t=t.parent;return t},_isStyle:function(e){return typeof e=="string"&&this._isText()?/^font|text|leading/.test(e):!1},_isText:function(){return this instanceof SVG.Text}}),SVG.G=function(){this.constructor.call(this,SVG.create("g"))},SVG.G.prototype=new SVG.Element,SVG.extend(SVG.G,SVG.Container),SVG.extend(SVG.Element,{siblings:function(){return this.parent.children()},forward:function(){var e=this.siblings().indexOf(this);return this.parent.remove(this).add(this,e+1),this},backward:function(){var e,t=this.parent.level();return e=this.siblings().indexOf(this),e>1&&t.remove(this).add(this,e-1),this},front:function(){return this.parent.remove(this).add(this),this},back:function(){var e,t=this.parent.level();return e=this.siblings().indexOf(this),e>1&&t.remove(this).add(this,0),this}}),SVG.Defs=function(){this.constructor.call(this,SVG.create("defs"))},SVG.Defs.prototype=new SVG.Element,SVG.extend(SVG.Defs,SVG.Container);var e=0;SVG.Clip=function(){this.constructor.call(this,SVG.create("clipPath")),this.id="svgjs_clip_"+e++,this.attr("id",this.id)},SVG.Clip.prototype=new SVG.Element,SVG.extend(SVG.Clip,SVG.Container),SVG.extend(SVG.Element,{clip:function(e){var t=this.parent.defs().clip();return e(t),this.clipTo(t)},clipTo:function(e){return this.attr("clip-path","url(#"+e.id+")")}}),SVG.extend(SVG.Defs,{clip:function(){var e=new SVG.Clip;return this.add(e),e}});var t=0;SVG.Gradient=function(n){this.constructor.call(this,SVG.create(n+"Gradient")),this.id="svgjs_grad_"+t++,this.type=n,this.attr("id",this.id)},SVG.Gradient.prototype=new SVG.Element,SVG.extend(SVG.Gradient,SVG.Container),SVG.extend(SVG.Gradient,{from:function(e,t){return this.type=="radial"?this.attr({fx:e+"%",fy:t+"%"}):this.attr({x1:e+"%",y1:t+"%"})},to:function(e,t){return this.type=="radial"?this.attr({cx:e+"%",cy:t+"%"}):this.attr({x2:e+"%",y2:t+"%"})},radius:function(e){return this.type=="radial"?this.attr({r:e+"%"}):this},at:function(e){var t=new SVG.Stop(e);return this.add(t),t},update:function(e){while(this.node.hasChildNodes())this.node.removeChild(this.node.lastChild);return e(this),this},fill:function(){return"url(#"+this.id+")"}}),SVG.extend(SVG.Defs,{gradient:function(e,t){var n=new SVG.Gradient(e);return this.add(n),t(n),n}}),SVG.Stop=function(t){this.constructor.call(this,SVG.create("stop")),this.update(t)},SVG.Stop.prototype=new SVG.Element,SVG.extend(SVG.Stop,{update:function(e){var t="",n=["opacity","color"];for(var r=n.length-1;r>=0;r--)e[n[r]]!=null&&(t+="stop-"+n[r]+":"+e[n[r]]+";");return this.attr({offset:(e.offset!=null?e.offset:this.attr("offset")||0)+"%",style:t})}}),SVG.Doc=function(t){this.constructor.call(this,SVG.create("svg"));var n=document.createElement("div");n.style.cssText="position:relative;width:100%;height:100%;",typeof t=="string"&&(t=document.getElementById(t)),this.attr({xmlns:SVG.ns,version:"1.1",width:"100%",height:"100%"}).attr("xlink",SVG.xlink,SVG.ns).defs(),t.appendChild(n),n.appendChild(this.node),this.stage()},SVG.Doc.prototype=new SVG.Element,SVG.extend(SVG.Doc,SVG.Container),SVG.Shape=function(t){this.constructor.call(this,t)},SVG.Shape.prototype=new SVG.Element,SVG.Rect=function(){this.constructor.call(this,SVG.create("rect"))},SVG.Rect.prototype=new SVG.Shape,SVG.Circle=function(){this.constructor.call(this,SVG.create("circle"))},SVG.Circle.prototype=new SVG.Shape,SVG.extend(SVG.Circle,{move:function(e,t){return this.attrs.x=e,this.attrs.y=t,this.center()},size:function(e){return this.attr("r",e/2).center()},center:function(e,t){var n=this.attrs.r||0;return this.attr({cx:e||(this.attrs.x||0)+n,cy:t||(this.attrs.y||0)+n})}}),SVG.Ellipse=function(){this.constructor.call(this,SVG.create("ellipse"))},SVG.Ellipse.prototype=new SVG.Shape,SVG.extend(SVG.Ellipse,{move:function(e,t){return this.attrs.x=e,this.attrs.y=t,this.center()},size:function(e,t){return this.attr({rx:e/2,ry:t/2}).center()},center:function(e,t){return this.attr({cx:e||(this.attrs.x||0)+(this.attrs.rx||0),cy:t||(this.attrs.y||0)+(this.attrs.ry||0)})}}),SVG.Path=function(){this.constructor.call(this,SVG.create("path"))},SVG.Path.prototype=new SVG.Shape,SVG.extend(SVG.Path,{plot:function(e){return this.attr("d",e)},move:function(e,t){return this.transform("translate("+e+","+t+")")}}),SVG.Image=function(){this.constructor.call(this,SVG.create("image"))},SVG.Image.prototype=new SVG.Shape,SVG.extend(SVG.Image,{load:function(e){return this.attr("xlink:href",e,SVG.xlink)}}),SVG.Text=function(){this.constructor.call(this,SVG.create("text")),this.style={"font-size":16,"font-family":"Helvetica","text-anchor":"start"},this.leading=1.2,this.lines=[]},SVG.Text.prototype=new SVG.Shape,SVG.extend(SVG.Text,{text:function(e){this.content=e=e||"text",this.lines=[];var t,r,i=this._style(),s=this.parentDoc(),o=e.split("\n");while(this.node.hasChildNodes())this.node.removeChild(this.node.lastChild);for(t=0,l=o.length;t<l;t++)r=(new n).text(o[t]).attr({dy:this.style["font-size"]*this.leading,x:this.attr("x")||0,style:i}),this.node.appendChild(r.node),this.lines.push(r);return this.attr("style",i)},_style:function(){var e,t="",n=this._s;for(e=n.length-1;e>=0;e--)this.style["font-"+n[e]]!=null&&(t+="font-"+n[e]+":"+this.style["font-"+n[e]]+";");return t+="text-anchor:"+this.style["text-anchor"]+";",t}}),n.prototype=new SVG.Shape,SVG.extend(n,{text:function(e){return this.node.appendChild(document.createTextNode(e)),this}}),SVG.extend(SVG.Shape,{fill:function(e){return e.color!=null&&this.attr("fill",e.color),e.opacity!=null&&this.attr("fill-opacity",e.opacity),this},stroke:function(e){e.color&&this.attr("stroke",e.color);var t="width opacity linecap linejoin miterlimit dasharray dashoffset".split(" ");for(var n=t.length-1;n>=0;n--)e[t[n]]!=null&&this.attr("stroke-"+t[n],e[t[n]]);return this}}),SVG.extend(SVG.Element,{rotate:function(e){var t=this.bbox();return typeof e=="number"&&(e={deg:e}),this.transform("rotate("+(e.deg||0)+" "+(e.x==null?t.cx:e.x)+" "+(e.y==null?t.cx:e.y)+")",e.relative)}}),SVG.extend(SVG.G,{move:function(e,t){return this.transform("translate("+e+" "+t+")")}}),SVG.extend(SVG.Text,{font:function(e){var t={};for(var n in e)n=="leading"?t[n]=e[n]:n=="anchor"?t["text-anchor"]=e[n]:this._s.indexOf(n)>-1?t["font-"+n]=e[n]:void 0;return this.attr(t).text(this.content)}})}).call(this);
\ No newline at end of file
+/* svg.js v0.1-26-gf301d23 - svg container element group arrange defs clip gradient doc shape rect circle ellipse path image text sugar - svgjs.com/license */
+function svg(e){return new SVG.Doc(e)}(function(){function n(){this.constructor.call(this,SVG.create("tspan"))}this.SVG={ns:"http://www.w3.org/2000/svg",xlink:"http://www.w3.org/1999/xlink",create:function(e){return document.createElementNS(this.ns,e)},extend:function(e,t){for(var n in t)e.prototype[n]=t[n]}},SVG.Container={add:function(e,t){return this.has(e)||(t=t==null?this.children().length:t,this.children().splice(t,0,e),this.node.insertBefore(e.node,this.node.childNodes[t]||null),e.parent=this),this},has:function(e){return this.children().indexOf(e)>=0},children:function(){return this._children||(this._children=[])},remove:function(e){return this.removeAt(this.children().indexOf(e))},removeAt:function(e){if(0<=e&&e<this.children().length){var t=this.children()[e];this.children().splice(e,1),this.node.removeChild(t.node),t.parent=null}return this},defs:function(){return this._defs==null&&(this._defs=new SVG.Defs,this.add(this._defs,0)),this._defs},level:function(){var e=this.defs();return this.remove(e).add(e,0),this},group:function(){var e=new SVG.G;return this.add(e),e},rect:function(e,t){var n=(new SVG.Rect).size(e,t);return this.add(n),n},circle:function(e){var t=(new SVG.Circle).size(e);return this.add(t),t},ellipse:function(e,t){var n=(new SVG.Ellipse).size(e,t);return this.add(n),n},path:function(e){var t=(new SVG.Path).plot(e);return this.add(t),t},image:function(e){var t=(new SVG.Image).load(e);return this.add(t),t},text:function(e){var t=(new SVG.Text).text(e);return this.add(t),t},gradient:function(e,t){return this.defs().gradient(e,t)},stage:function(){var e,t=this;return e=function(){document.readyState==="complete"?(t.attr("style","position:absolute;left:0;top:0;"),setTimeout(function(){t.attr("style","position:relative;")},5)):setTimeout(e,10)},e(),this}},SVG.Element=function(t){this.node=t,this.attrs={},this.trans={x:0,y:0,scaleX:1,scaleY:1,rotation:0,skewX:0,skewY:0},this._s="size family weight stretch variant style".split(" ")},SVG.extend(SVG.Element,{move:function(e,t){return this.attr({x:e,y:t})},size:function(e,t){return this.attr({width:e,height:t})},remove:function(){return this.parent!=null?this.parent.remove(this):void 0},parentDoc:function(){return this._parent(SVG.Doc)},attr:function(e,t,n){if(arguments.length<2){if(typeof e!="object")return this._isStyle(e)?e=="text"?this.content:e=="leading"?this[e]:this.style[e]:this.attrs[e];for(t in e)this.attr(t,e[t])}else{this.attrs[e]=t;if(e=="x"&&this._isText())for(var r=this.lines.length-1;r>=0;r--)this.lines[r].attr(e,t);else n!=null?this.node.setAttributeNS(n,e,t):this.node.setAttribute(e,t);this._isStyle(e)&&(e=="text"?this.text(t):e=="leading"?this[e]=t:this.style[e]=t,this.text(this.content))}return this},transform:function(e){if(typeof e=="string")return this.trans[e];var t,n=[],r=this.bbox(),i=this.attr("transform")||"",s=i.match(/[a-z]+\([^\)]+\)/g)||[];for(t in this.trans)e[t]!=null&&(this.trans[t]=e[t]);return e=this.trans,e.rotation!=0&&n.push("rotate("+e.rotation+","+(e.cx!=null?e.cx:r.cx)+","+(e.cy!=null?e.cy:r.cy)+")"),e.scaleX!=1&&e.scaleY!=1&&n.push("scale("+e.sx+","+e.sy+")"),e.skewX!=0&&n.push("skewX("+x.skewX+")"),e.skewY!=0&&n.push("skewY("+x.skewY+")"),e.x!=0&&e.y!=0&&n.push("translate("+e.x+","+e.y+")"),this.attr("transform",n.join(" "))},bbox:function(){var e=this.node.getBBox();return e.x+=this.trans.x,e.y+=this.trans.y,e.cx=e.x+e.width/2,e.cy=e.y+e.height/2,e},_parent:function(e){var t=this;while(t!=null&&!(t instanceof e))t=t.parent;return t},_isStyle:function(e){return typeof e=="string"&&this._isText()?/^font|text|leading/.test(e):!1},_isText:function(){return this instanceof SVG.Text}}),SVG.G=function(){this.constructor.call(this,SVG.create("g"))},SVG.G.prototype=new SVG.Element,SVG.extend(SVG.G,SVG.Container),SVG.extend(SVG.Element,{siblings:function(){return this.parent.children()},forward:function(){var e=this.siblings().indexOf(this);return this.parent.remove(this).add(this,e+1),this},backward:function(){var e,t=this.parent.level();return e=this.siblings().indexOf(this),e>1&&t.remove(this).add(this,e-1),this},front:function(){return this.parent.remove(this).add(this),this},back:function(){var e,t=this.parent.level();return e=this.siblings().indexOf(this),e>1&&t.remove(this).add(this,0),this}}),SVG.Defs=function(){this.constructor.call(this,SVG.create("defs"))},SVG.Defs.prototype=new SVG.Element,SVG.extend(SVG.Defs,SVG.Container);var e=0;SVG.Clip=function(){this.constructor.call(this,SVG.create("clipPath")),this.id="svgjs_clip_"+e++,this.attr("id",this.id)},SVG.Clip.prototype=new SVG.Element,SVG.extend(SVG.Clip,SVG.Container),SVG.extend(SVG.Element,{clip:function(e){var t=this.parent.defs().clip();return e(t),this.clipTo(t)},clipTo:function(e){return this.attr("clip-path","url(#"+e.id+")")}}),SVG.extend(SVG.Defs,{clip:function(){var e=new SVG.Clip;return this.add(e),e}});var t=0;SVG.Gradient=function(n){this.constructor.call(this,SVG.create(n+"Gradient")),this.id="svgjs_grad_"+t++,this.type=n,this.attr("id",this.id)},SVG.Gradient.prototype=new SVG.Element,SVG.extend(SVG.Gradient,SVG.Container),SVG.extend(SVG.Gradient,{from:function(e,t){return this.type=="radial"?this.attr({fx:e+"%",fy:t+"%"}):this.attr({x1:e+"%",y1:t+"%"})},to:function(e,t){return this.type=="radial"?this.attr({cx:e+"%",cy:t+"%"}):this.attr({x2:e+"%",y2:t+"%"})},radius:function(e){return this.type=="radial"?this.attr({r:e+"%"}):this},at:function(e){var t=new SVG.Stop(e);return this.add(t),t},update:function(e){while(this.node.hasChildNodes())this.node.removeChild(this.node.lastChild);return e(this),this},fill:function(){return"url(#"+this.id+")"}}),SVG.extend(SVG.Defs,{gradient:function(e,t){var n=new SVG.Gradient(e);return this.add(n),t(n),n}}),SVG.Stop=function(t){this.constructor.call(this,SVG.create("stop")),this.update(t)},SVG.Stop.prototype=new SVG.Element,SVG.extend(SVG.Stop,{update:function(e){var t="",n=["opacity","color"];for(var r=n.length-1;r>=0;r--)e[n[r]]!=null&&(t+="stop-"+n[r]+":"+e[n[r]]+";");return this.attr({offset:(e.offset!=null?e.offset:this.attr("offset")||0)+"%",style:t})}}),SVG.Doc=function(t){this.constructor.call(this,SVG.create("svg"));var n=document.createElement("div");n.style.cssText="position:relative;width:100%;height:100%;",typeof t=="string"&&(t=document.getElementById(t)),this.attr({xmlns:SVG.ns,version:"1.1",width:"100%",height:"100%"}).attr("xlink",SVG.xlink,SVG.ns).defs(),t.appendChild(n),n.appendChild(this.node),this.stage()},SVG.Doc.prototype=new SVG.Element,SVG.extend(SVG.Doc,SVG.Container),SVG.Shape=function(t){this.constructor.call(this,t)},SVG.Shape.prototype=new SVG.Element,SVG.Rect=function(){this.constructor.call(this,SVG.create("rect"))},SVG.Rect.prototype=new SVG.Shape,SVG.Circle=function(){this.constructor.call(this,SVG.create("circle"))},SVG.Circle.prototype=new SVG.Shape,SVG.extend(SVG.Circle,{move:function(e,t){return this.attrs.x=e,this.attrs.y=t,this.center()},size:function(e){return this.attr("r",e/2).center()},center:function(e,t){var n=this.attrs.r||0;return this.attr({cx:e||(this.attrs.x||0)+n,cy:t||(this.attrs.y||0)+n})}}),SVG.Ellipse=function(){this.constructor.call(this,SVG.create("ellipse"))},SVG.Ellipse.prototype=new SVG.Shape,SVG.extend(SVG.Ellipse,{move:function(e,t){return this.attrs.x=e,this.attrs.y=t,this.center()},size:function(e,t){return this.attr({rx:e/2,ry:t/2}).center()},center:function(e,t){return this.attr({cx:e||(this.attrs.x||0)+(this.attrs.rx||0),cy:t||(this.attrs.y||0)+(this.attrs.ry||0)})}}),SVG.Path=function(){this.constructor.call(this,SVG.create("path"))},SVG.Path.prototype=new SVG.Shape,SVG.extend(SVG.Path,{plot:function(e){return this.attr("d",e||"M0,0L0,0")},move:function(e,t){return this.transform({x:e,y:t})}}),SVG.Image=function(){this.constructor.call(this,SVG.create("image"))},SVG.Image.prototype=new SVG.Shape,SVG.extend(SVG.Image,{load:function(e){return this.attr("xlink:href",e,SVG.xlink)}}),SVG.Text=function(){this.constructor.call(this,SVG.create("text")),this.style={"font-size":16,"font-family":"Helvetica","text-anchor":"start"},this.leading=1.2,this.lines=[]},SVG.Text.prototype=new SVG.Shape,SVG.extend(SVG.Text,{text:function(e){this.content=e=e||"text",this.lines=[];var t,r,i=this._style(),s=this.parentDoc(),o=e.split("\n");while(this.node.hasChildNodes())this.node.removeChild(this.node.lastChild);for(t=0,l=o.length;t<l;t++)r=(new n).text(o[t]).attr({dy:this.style["font-size"]*this.leading,x:this.attr("x")||0,style:i}),this.node.appendChild(r.node),this.lines.push(r);return this.attr("style",i)},_style:function(){var e,t="",n=this._s;for(e=n.length-1;e>=0;e--)this.style["font-"+n[e]]!=null&&(t+="font-"+n[e]+":"+this.style["font-"+n[e]]+";");return t+="text-anchor:"+this.style["text-anchor"]+";",t}}),n.prototype=new SVG.Shape,SVG.extend(n,{text:function(e){return this.node.appendChild(document.createTextNode(e)),this}}),SVG.extend(SVG.Shape,{fill:function(e){return e.color!=null&&this.attr("fill",e.color),e.opacity!=null&&this.attr("fill-opacity",e.opacity),this},stroke:function(e){e.color&&this.attr("stroke",e.color);var t="width opacity linecap linejoin miterlimit dasharray dashoffset".split(" ");for(var n=t.length-1;n>=0;n--)e[t[n]]!=null&&this.attr("stroke-"+t[n],e[t[n]]);return this}}),SVG.extend(SVG.Element,{rotate:function(e,t,n){var r=this.bbox();return this.transform({rotation:e||0,cx:t==null?r.cx:t,cy:n==null?r.cx:n})}}),SVG.extend(SVG.G,{move:function(e,t){return this.transform({x:e,y:t})}}),SVG.extend(SVG.Text,{font:function(e){var t,n={};for(t in e)t=="leading"?n[t]=e[t]:t=="anchor"?n["text-anchor"]=e[t]:this._s.indexOf(t)>-1?n["font-"+t]=e[t]:void 0;return this.attr(n).text(this.content)}})}).call(this);
\ No newline at end of file
diff --git a/src/element.js b/src/element.js
index ff3ad37..03963f1 100644
--- a/src/element.js
+++ b/src/element.js
@@ -2,6 +2,15 @@
 SVG.Element = function Element(n) {
   this.node = n;
   this.attrs = {};
+  this.trans = {
+    x:        0,
+    y:        0,
+    scaleX:   1,
+    scaleY:   1,
+    rotation: 0,
+    skewX:    0,
+    skewY:    0
+  };
   
   this._s = ('size family weight stretch variant style').split(' ');
 };
@@ -41,7 +50,7 @@ SVG.extend(SVG.Element, {
                a == 'leading' ?
                  this[a] :
                  this.style[a];
-        
+      
       else
         return this.attrs[a];
     
@@ -69,32 +78,60 @@ SVG.extend(SVG.Element, {
     return this;
   },
   
-  // transformations
-  transform: function(t, r) {
-    var n = [],
+  transform: function(o) {
+    // act as a getter if the first argument is a string
+    if (typeof o === 'string')
+      return this.trans[o];
+      
+    // ... otherwise continue as a setter
+    var k,
+        t = [],
+        b = this.bbox(),
         s = this.attr('transform') || '',
-        l = s.match(/([a-z]+\([^\)]+\))/g) || [];
+        l = s.match(/[a-z]+\([^\)]+\)/g) || [];
     
-    if (r !== true) {
-      var v = t.match(/^([A-Za-z\-]+)/)[1],
-          r = new RegExp('^' + v);
-      
-      for (var i = 0, s = l.length; i < s; i++)
-        if (!r.test(l[i]))
-          n.push(l[i]);
-      
-    } else
-      n = l;
+    // merge values
+    for (k in this.trans)
+      if (o[k] != null)
+        this.trans[k] = o[k];
+    
+    // alias current transformations
+    o = this.trans;
+    
+    // add rotate
+    if (o.rotation != 0)
+      t.push('rotate(' + o.rotation + ',' + (o.cx != null ? o.cx : b.cx) + ',' + (o.cy != null ? o.cy : b.cy) + ')');
     
-    n.push(t);
+    // add scale
+    if (o.scaleX != 1 && o.scaleY != 1)
+      t.push('scale(' + o.sx + ',' + o.sy + ')');
     
-    return this.attr('transform', n.join(' '));
+    // add skew on x axis
+    if (o.skewX != 0)
+      t.push('skewX(' + x.skewX + ')');
+    
+    // add skew on y axis
+    if (o.skewY != 0)
+      t.push('skewY(' + x.skewY + ')')
+    
+    // add translate
+    if (o.x != 0 && o.y != 0)
+      t.push('translate(' + o.x + ',' + o.y + ')');
+    
+    // add only te required transformations
+    return this.attr('transform', t.join(' '));
   },
-
+  
   // get bounding box
   bbox: function() {
+    // actual bounding box
     var b = this.node.getBBox();
     
+    // include translations on x an y
+    b.x += this.trans.x;
+    b.y += this.trans.y;
+    
+    // add the center
     b.cx = b.x + b.width / 2;
     b.cy = b.y + b.height / 2;
     
diff --git a/src/path.js b/src/path.js
index 4faf174..27c28b3 100644
--- a/src/path.js
+++ b/src/path.js
@@ -11,12 +11,12 @@ SVG.extend(SVG.Path, {
   
   // set path data
   plot: function(d) {
-    return this.attr('d', d);
+    return this.attr('d', d || 'M0,0L0,0');
   },
   
   // move path using translate
   move: function(x, y) {
-    return this.transform('translate(' + x + ',' + y + ')');
+    return this.transform({ x: x, y: y });
   }
   
 });
\ No newline at end of file
diff --git a/src/sugar.js b/src/sugar.js
index eba897d..bd8454d 100644
--- a/src/sugar.js
+++ b/src/sugar.js
@@ -33,18 +33,14 @@ SVG.extend(SVG.Shape, {
 SVG.extend(SVG.Element, {
   
   // rotation
-  rotate: function(o) {
+  rotate: function(d, x, y) {
     var b = this.bbox();
     
-    if (typeof o == 'number')
-      o = { deg: o };
-    
-    return this.transform(
-      'rotate(' +
-      (o.deg || 0) + ' ' +
-      (o.x == null ? b.cx : o.x) + ' ' +
-      (o.y == null ? b.cx : o.y) + ')',
-    o.relative);
+    return this.transform({
+      rotation: d || 0,
+      cx:       x == null ? b.cx : x,
+      cy:       y == null ? b.cx : y
+    });
   }
   
 });
@@ -54,7 +50,7 @@ SVG.extend(SVG.G, {
   
   // move using translate
   move: function(x, y) {
-    return this.transform('translate(' + x + ' ' + y + ')');
+    return this.transform({ x: x, y: y });
   }
   
 });
@@ -64,9 +60,9 @@ SVG.extend(SVG.Text, {
   
   // set font 
   font: function(o) {
-    var a = {};
+    var k, a = {};
     
-    for (var k in o)
+    for (k in o)
       k == 'leading' ?
         a[k] = o[k] :
       k == 'anchor' ?
@@ -76,7 +72,7 @@ SVG.extend(SVG.Text, {
         void 0;
     
     return this.attr(a).text(this.content);
-  },
+  }
   
 });