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on(e,t){var n="matrix("+t.a+","+t.b+","+t.c+","+t.d+","+t.e+","+t.f+")";e.setAttribute("transform",n)}an.$inject=["config.canvas","eventBus","graphicsFactory","elementRegistry"],an.prototype._init=function(e){var t=this._eventBus,n=this._container=function(e){var t=(e=b({},{width:"100%",height:"100%"},e)).container||document.body,n=document.createElement("div");return n.setAttribute("class","djs-container"),b(n.style,{position:"relative",overflow:"hidden",width:tn(e.width),height:tn(e.height)}),t.appendChild(n),n}(e),i=this._svg=G("svg");T(i,{width:"100%",height:"100%"}),M(n,i);var r=this._viewport=nn(i,"viewport");this._layers={},!1!==e.deferUpdate&&(this._viewboxChanged=function(e,t){var n,i,r,a;function o(){var o=Date.now(),l=a+t-o;if(l>0)return s(l);e.apply(r,i),n=a=i=r=void 0}function s(e){n=setTimeout(o,e)}return function(){a=Date.now();for(var e=arguments.length,o=new 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i;e.id||(e=this._elementRegistry.get(e)),(i=this._elementRegistry._elements[e.id])&&(h([i.gfx,i.secondaryGfx],function(e){e&&(n?I(e).add(t):I(e).remove(t))}),this._eventBus.fire("element.marker.update",{element:e,gfx:i.gfx,marker:t,add:!!n}))},an.prototype.addMarker=function(e,t){this._updateMarker(e,t,!0)},an.prototype.removeMarker=function(e,t){this._updateMarker(e,t,!1)},an.prototype.hasMarker=function(e,t){return e.id||(e=this._elementRegistry.get(e)),I(this.getGraphics(e)).has(t)},an.prototype.toggleMarker=function(e,t){this.hasMarker(e,t)?this.removeMarker(e,t):this.addMarker(e,t)},an.prototype.getRootElement=function(){return this._rootElement||this.setRootElement({id:"__implicitroot",children:[]}),this._rootElement},an.prototype.setRootElement=function(e,t){e&&this._ensureValid("root",e);var n=this._rootElement,i=this._elementRegistry,r=this._eventBus;if(n){if(!t)throw new Error("rootElement already set, need to specify 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this._elementRegistry.getGraphics(e,t)},an.prototype._changeViewbox=function(e){this._eventBus.fire("canvas.viewbox.changing"),e.apply(this),this._cachedViewbox=null,this._viewboxChanged()},an.prototype._viewboxChanged=function(){this._eventBus.fire("canvas.viewbox.changed",{viewbox:this.viewbox()})},an.prototype.viewbox=function(e){if(void 0===e&&this._cachedViewbox)return this._cachedViewbox;var t,n,i,r,a,o,s=this._viewport,l=this.getSize();return e?(this._changeViewbox(function(){r=Math.min(l.width/e.width,l.height/e.height);var t=this._svg.createSVGMatrix().scale(r).translate(-e.x,-e.y);te(s,t)}),e):(t=this.getDefaultLayer().getBBox(),n=(i=te(s))?i.matrix:function(e,t,n,i,r,a){var o=H.createSVGMatrix();switch(arguments.length){case 0:return o;case 1:return $(o,e);case 6:return 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