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o(this.__zoom.translate("function"==typeof n?n.apply(this,arguments):n,"function"==typeof e?e.apply(this,arguments):e),i.apply(this,arguments),c)})},y.translateTo=function(t,n,e){y.transform(t,function(){var t=i.apply(this,arguments),r=this.__zoom,a=m(t);return o(tb.translate(a[0],a[1]).scale(r.k).translate("function"==typeof n?-n.apply(this,arguments):-n,"function"==typeof e?-e.apply(this,arguments):-e),t,c)})},M.prototype={start:function(){return 1==++this.active&&(this.index=h.push(this)-1,this.emit("start")),this},zoom:function(t,n){return this.mouse&&"mouse"!==t&&(this.mouse[1]=n.invert(this.mouse[0])),this.touch0&&"touch"!==t&&(this.touch0[1]=n.invert(this.touch0[0])),this.touch1&&"touch"!==t&&(this.touch1[1]=n.invert(this.touch1[0])),this.that.__zoom=n,this.emit("zoom"),this},end:function(){return 0==--this.active&&(h.splice(this.index,1),this.index=-1,this.emit("end")),this},emit:function(t){Ct(new J_(y,t,this.that.__zoom),d.apply,d,[t,this.that,this.args])}},y.wheelDelta=function(t){return arguments.length?(a="function"==typeof t?t:Q_(+t),y):a},y.filter=function(t){return arguments.length?(r="function"==typeof t?t:Q_(!!t),y):r},y.touchable=function(t){return arguments.length?(u="function"==typeof t?t:Q_(!!t),y):u},y.extent=function(t){return arguments.length?(i="function"==typeof t?t:Q_([[+t[0][0],+t[0][1]],[+t[1][0],+t[1][1]]]),y):i},y.scaleExtent=function(t){return arguments.length?(f[0]=+t[0],f[1]=+t[1],y):[f[0],f[1]]},y.translateExtent=function(t){return arguments.length?(c[0][0]=+t[0][0],c[1][0]=+t[1][0],c[0][1]=+t[0][1],c[1][1]=+t[1][1],y):[[c[0][0],c[0][1]],[c[1][0],c[1][1]]]},y.constrain=function(t){return arguments.length?(o=t,y):o},y.duration=function(t){return arguments.length?(s=+t,y):s},y.interpolate=function(t){return arguments.length?(l=t,y):l},y.on=function(){var t=d.on.apply(d,arguments);return t===d?y:t},y.clickDistance=function(t){return arguments.length?(g=(t=+t)*t,y):Math.sqrt(g)},y},t.zoomTransform=nb,t.zoomIdentity=tb,Object.defineProperty(t,"__esModule",{value:!0})});