pointvec/sources/scripts/path_bezier.js

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function Path_Bezier(from,to,end)
{
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this.name = "bezier";
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this.from = from;
this.to = to;
this.end = end;
this.to_segment = function(prev)
{
var html = ""
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if(!prev || (!prev.to && !prev.end)){
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html += "M"+this.from+" ";
}
else if(prev){
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if(prev.end){
if(!prev.end.is_equal(this.from)){
html += "M"+this.from+" ";
}
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}
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else if(prev.to){
if(!prev.to.is_equal(this.from)){
html += "M"+this.from+" ";
}
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}
}
return html += "Q"+this.to+" "+this.end+" "
}
}