Andrej Cimperšek - diploma

/*

        Copyright (c) 2004-2010, The Dojo Foundation All Rights Reserved.

        Available via Academic Free License >= 2.1 OR the modified BSD license.

        see: http://dojotoolkit.org/license for details

*/

if(!dojo._hasResource["dojox.math.curves"]){

dojo._hasResource["dojox.math.curves"]=true;

dojo.provide("dojox.math.curves");

dojo.mixin(dojox.math.curves,{Line:function(_1,_2){

this.start=_1;

this.end=_2;

this.dimensions=_1.length;

for(var i=0;i<_1.length;i++){

_1[i]=Number(_1[i]);

}

for(var i=0;i<_2.length;i++){

_2[i]=Number(_2[i]);

}

this.getValue=function(n){

var _3=new Array(this.dimensions);

for(var i=0;i<this.dimensions;i++){

_3[i]=((this.end[i]-this.start[i])*n)+this.start[i];

}

return _3;

};

return this;

},Bezier:function(_4){

this.getValue=function(_5){

if(_5>=1){

return this.p[this.p.length-1];

}

if(_5<=0){

return this.p[0];

}

var _6=new Array(this.p[0].length);

for(var k=0;j<this.p[0].length;k++){

_6[k]=0;

}

for(var j=0;j<this.p[0].length;j++){

var C=0;

var D=0;

for(var i=0;i<this.p.length;i++){

C+=this.p[i][j]*this.p[this.p.length-1][0]*dojox.math.bernstein(_5,this.p.length,i);

}

for(var l=0;l<this.p.length;l++){

D+=this.p[this.p.length-1][0]*dojox.math.bernstein(_5,this.p.length,l);

}

_6[j]=C/D;

}

return _6;

};

this.p=_4;

return this;

},CatmullRom:function(_7,c){

this.getValue=function(_8){

var _9=_8*(this.p.length-1);

var _a=Math.floor(_9);

var _b=_9-_a;

var i0=_a-1;

if(i0<0){

i0=0;

}

var i=_a;

var i1=_a+1;

if(i1>=this.p.length){

i1=this.p.length-1;

}

var i2=_a+2;

if(i2>=this.p.length){

i2=this.p.length-1;

}

var u=_b;

var u2=_b*_b;

var u3=_b*_b*_b;

var _c=new Array(this.p[0].length);

for(var k=0;k<this.p[0].length;k++){

var x1=(-this.c*this.p[i0][k])+((2-this.c)*this.p[i][k])+((this.c-2)*this.p[i1][k])+(this.c*this.p[i2][k]);

var x2=(2*this.c*this.p[i0][k])+((this.c-3)*this.p[i][k])+((3-2*this.c)*this.p[i1][k])+(-this.c*this.p[i2][k]);

var x3=(-this.c*this.p[i0][k])+(this.c*this.p[i1][k]);

var x4=this.p[i][k];

_c[k]=x1*u3+x2*u2+x3*u+x4;

}

return _c;

};

if(!c){

this.c=0.7;

}else{

this.c=c;

}

this.p=_7;

return this;

},Arc:function(_d,_e,_f){

function _10(a,b){

var c=new Array(a.length);

for(var i=0;i<a.length;i++){

c[i]=a[i]+b[i];

}

return c;

};

function _11(a){

var b=new Array(a.length);

for(var i=0;i<a.length;i++){

b[i]=-a[i];

}

return b;

};

var _12=dojox.math.midpoint(_d,_e);

var _13=_10(_11(_12),_d);

var rad=Math.sqrt(Math.pow(_13[0],2)+Math.pow(_13[1],2));

var _14=dojox.math.radiansToDegrees(Math.atan(_13[1]/_13[0]));

if(_13[0]<0){

_14-=90;

}else{

_14+=90;

}

dojox.math.curves.CenteredArc.call(this,_12,rad,_14,_14+(_f?-180:180));

},CenteredArc:function(_15,_16,_17,end){

this.center=_15;

this.radius=_16;

this.start=_17||0;

this.end=end;

this.getValue=function(n){

var _18=new Array(2);

var _19=dojox.math.degreesToRadians(this.start+((this.end-this.start)*n));

_18[0]=this.center[0]+this.radius*Math.sin(_19);

_18[1]=this.center[1]-this.radius*Math.cos(_19);

return _18;

};

return this;

},Circle:function(_1a,_1b){

dojox.math.curves.CenteredArc.call(this,_1a,_1b,0,360);

return this;

},Path:function(){

var _1c=[];

var _1d=[];

var _1e=[];

var _1f=0;

this.add=function(_20,_21){

if(_21<0){

console.error("dojox.math.curves.Path.add: weight cannot be less than 0");

}

_1c.push(_20);

_1d.push(_21);

_1f+=_21;

_22();

};

this.remove=function(_23){

for(var i=0;i<_1c.length;i++){

if(_1c[i]==_23){

_1c.splice(i,1);

_1f-=_1d.splice(i,1)[0];

break;

}

}

_22();

};

this.removeAll=function(){

_1c=[];

_1d=[];

_1f=0;

};

this.getValue=function(n){

var _24=false,_25=0;

for(var i=0;i<_1e.length;i++){

var r=_1e[i];

if(n>=r[0]&&n<r[1]){

var _26=(n-r[0])/r[2];

_25=_1c[i].getValue(_26);

_24=true;

break;

}

}

if(!_24){

_25=_1c[_1c.length-1].getValue(1);

}

for(var j=0;j<i;j++){

_25=dojox.math.points.translate(_25,_1c[j].getValue(1));

}

return _25;

};

function _22(){

var _27=0;

for(var i=0;i<_1d.length;i++){

var end=_27+_1d[i]/_1f;

var len=end-_27;

_1e[i]=[_27,end,len];

_27=end;

}

};

return this;

}});

}