#104 extend jquery convert to javascript

src/svgcanvas/recalculate.js

@@ -239,7 +239,8 @@ export const recalculateDimensions = function (selected) {
   // if we haven't created an initial array in polygon/polyline/path, then
   // make a copy of initial values and include the transform
   if (isNullish(initial)) {
-    initial = $.extend(true, {}, changes);
+    const canvas = context_.getCanvas();
+    initial = canvas.mergeDeep({}, changes);
     for (const [ attr, val ] of Object.entries(initial)) {
       initial[attr] = convertToNum(attr, val);
     }

src/svgcanvas/svgcanvas.js

@@ -480,7 +480,8 @@ class SvgCanvas {
         getSVGRoot,
         getStartTransform() { return startTransform; },
         setStartTransform(transform) { startTransform = transform; },
-        getDataStorage
+        getDataStorage,
+        getCanvas() { return canvas; },
       }
     );
     this.recalculateDimensions = recalculateDimensions;