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n=this.getLength()*t.getLength();return 0===n?0:Math.acos(Math.min(Math.max((this.x*t.x+this.y*t.y)/n,-1),1))/Math.PI}}function e(t,e){this.x=t,this.y=e,this.getVectorToCoordinates=function(t,e){return new n(t-this.x,e-this.y)},this.getVectorFromCoordinates=function(t,n){return this.getVectorToCoordinates(t,n).reverse()},this.getVectorToPoint=function(t){return new n(t.x-this.x,t.y-this.y)},this.getVectorFromPoint=function(t){return this.getVectorToPoint(t).reverse()}}function i(t,n,e,i,r){if(this.data=t,this.context=n,t.length)for(var a,s,o=t.length,h=0;h<o;h++){a=t[h],s=a.x.length,e.call(n,a);for(var u=1;u<s;u++)i.call(n,a,u);r.call(n,a)}this.changed=function(){},this.startStrokeFn=e,this.addToStrokeFn=i,this.endStrokeFn=r,this.inStroke=!1,this._stroke=this._lastPoint=null,this.startStroke=function(t){if(t&&"number"==typeof t.x&&"number"==typeof t.y){this._stroke={x:[t.x],y:[t.y]},this.data.push(this._stroke),this._lastPoint=t,this.inStroke=!0;var 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h=t.settings;t.$parent.children().remove();for(o in t)t.hasOwnProperty(o)&&delete t[o];o=h.data,s=1*s/a;var u,c,l=[],d=0;for(u=o.length;d<u;d++){var g=o[d],f={x:[],y:[]},p=0;for(c=g.x.length;p<c;p++)f.x.push(g.x[p]*s),f.y.push(g.y[p]*s);l.push(f)}h.data=l,r[e](h)}}}(this.eventTokens,this.$parent,this.$parent.width(),1*this.canvas.width/this.canvas.height)))}function a(n,i,a){var s=this.$parent=$(n);n=this.eventTokens={},this.events=new h(this);var u=$.fn.jSignature("globalEvents"),c={width:"ratio",height:"ratio",sizeRatio:4,color:"#000","background-color":"#fff","decor-color":"#eee",lineWidth:0,minFatFingerCompensation:-10,showUndoButton:!1,readOnly:!1,data:[],signatureLine:!1};$.extend(c,t(s)),i&&$.extend(c,i),this.settings=c;for(var l in a)a.hasOwnProperty(l)&&a[l].call(this,l);return this.events.publish("jSignature.initializing"),this.$controlbarUpper=$('<div style="padding:0 !important; margin:0 !important;width: 100% !important; height: 0 !important; -ms-touch-action: none; 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r,a=function(){t.publish(n+".parentresized")};e(i).bind("resize."+n,function(){r&&clearTimeout(r),r=setTimeout(a,500)}).bind("mouseup."+n,function(e){t.publish(n+".windowmouseup")})}(r,"jSignature",$,t);var s={},o={"default":function(t){return this.toDataURL()},"native":function(t){return t},image:function(t){if(t=this.toDataURL(),"string"==typeof t&&4<t.length&&"data:"===t.slice(0,5)&&-1!==t.indexOf(",")){var n=t.indexOf(",");return[t.slice(5,n),t.substr(n+1)]}return[]}},u={"native":function(t,n,e){e(t)},image:n,"image/png;base64":n,"image/jpeg;base64":n,"image/jpg;base64":n},c=function(t){var n=!1;for(t=t.parentNode;t&&!n;)n=t.body,t=t.parentNode;return!n},l={"export":o,"import":u,instance:s},d={init:function(t){return this.each(function(){c(this)||new a(this,t,s)})},destroy:function(){return this.each(function(){if(!c(this)){var t=$(this).find("canvas").data("jSignature.this");if(t){t.$controlbarLower.remove(),t.$controlbarUpper.remove(),$(t.canvas).remove();for(var n in 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t={},n={},e="0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWX".split(""),i=e.length/2,r=i-1;-1<r;r--)t[e[r]]=e[r+i],n[e[r+i]]=e[r];var a=function(n){n=n.split("");for(var e=n.length,i=1;i<e;i++)n[i]=t[n[i]];return n.join("")},s=function(t){for(var n,e,r=[],s=0,o=1,h=t.length,u=0;u<h;u++)n=Math.round(t[u]),e=n-s,s=n,0>e&&0<o?(o=-1,r.push("Z")):0<e&&0>o&&(o=1,r.push("Y")),n=Math.abs(e),n>=i?r.push(a(n.toString(i))):r.push(n.toString(i));return r.join("")},o=function(e){var r=[];e=e.split("");for(var a,s=e.length,o=1,h=[],u=0,c=0;c<s;c++)a=e[c],a in t||"Z"===a||"Y"===a?(0!==h.length&&(h=parseInt(h.join(""),i)*o+u,r.push(h),u=h),"Z"===a?(o=-1,h=[]):"Y"===a?(o=1,h=[]):h=[a]):h.push(n[a]);return r.push(parseInt(h.join(""),i)*o+u),r},h=function(t){for(var n,e=[],i=t.length,r=0;r<i;r++)n=t[r],e.push(s(n.x)),e.push(s(n.y));return e.join("_")},u=function(t){var n=[];t=t.split("_");for(var e=t.length/2,i=0;i<e;i++)n.push({x:o(t[2*i]),y:o(t[2*i+1])});return 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