// Macros :
$macros={};
$macros["Cnk5tangentes"]={
	name:"Cnk 5 tangentes",
	parameters:["line","line","line","line","line"],
	exec:
	function (d1,d2,d3,d4,d5){
P11=OrderedIntersection("P11",d5,d1,0);
P12=OrderedIntersection("P12",d2,d1,0);
P13=OrderedIntersection("P13",d3,d2,0);
P14=OrderedIntersection("P14",d4,d3,0);
P15=OrderedIntersection("P15",d5,d4,0);
L1=Line("L1",P11,P14);
L2=Line("L2",P15,P13);
L4=Line("L4",P12,P15);
L6=Line("L6",P11,P13);
L8=Line("L8",P12,P14);
P16=OrderedIntersection("P16",L2,L1,0);
P17=OrderedIntersection("P17",L4,L1,0);
P18=OrderedIntersection("P18",L4,L6,0);
P19=OrderedIntersection("P19",L8,L6,0);
P20=OrderedIntersection("P20",L8,L2,0);
L3=Line("L3",P12,P16);
L5=Line("L5",P13,P17);
L7=Line("L7",P14,P18);
L9=Line("L9",P15,P19);
L10=Line("L10",P11,P20);
T1=OrderedIntersection("T1",L3,d4,0);
T2=OrderedIntersection("T2",L5,d5,0);
T3=OrderedIntersection("T3",L7,d1,0);
T4=OrderedIntersection("T4",L9,d2,0);
T5=OrderedIntersection("T5",L10,d3,0);
Quad=Quadric("Quad",T1,T2,T3,T4,T5);
STL(Quad,"c:#ed00ff;s:2.5;f:30;p:500");
return [Quad];
}};

// Coordinates System :
SetCoords(525,372,40);


// Geometry :
P1=Point("P1",2.7,5.15);
P2=Point("P2",-8.875,-0.525);
P3=Point("P3",-8.05,3.65);
P4=Point("P4",-5.075,-6.9);
P5=Point("P5",-7.425,-4.975);
P6=Point("P6",4.65,-7.25);
P7=Point("P7",2.45,-7.875);
P8=Point("P8",9.525,-0.95);
P9=Point("P9",8.75,-3.15);
P10=Point("P10",4.85,8.025);
E1=Expression("E1","D\u00e9f tangentielle d'une conique - Brianchon optimis\u00e9 ","","","0","-12.125","7.3");
d1=Line("d1",P1,P2);
d2=Line("d2",P3,P4);
d3=Line("d3",P5,P6);
d4=Line("d4",P7,P8);
d5=Line("d5",P9,P10);
P11=OrderedIntersection("P11",d5,d1,0);
P12=OrderedIntersection("P12",d2,d1,0);
P13=OrderedIntersection("P13",d3,d2,0);
P14=OrderedIntersection("P14",d4,d3,0);
P15=OrderedIntersection("P15",d5,d4,0);
L1=Line("L1",P11,P14);
L2=Line("L2",P15,P13);
L4=Line("L4",P12,P15);
L6=Line("L6",P11,P13);
L8=Line("L8",P12,P14);
P16=OrderedIntersection("P16",L2,L1,0);
P17=OrderedIntersection("P17",L4,L1,0);
P18=OrderedIntersection("P18",L4,L6,0);
P19=OrderedIntersection("P19",L8,L6,0);
P20=OrderedIntersection("P20",L8,L2,0);
L3=Line("L3",P12,P16);
L5=Line("L5",P13,P17);
L7=Line("L7",P14,P18);
L9=Line("L9",P15,P19);
L10=Line("L10",P11,P20);
T1=OrderedIntersection("T1",L3,d4,0);
T2=OrderedIntersection("T2",L5,d5,0);
T3=OrderedIntersection("T3",L7,d1,0);
T4=OrderedIntersection("T4",L9,d2,0);
T5=OrderedIntersection("T5",L10,d3,0);
Quad=Quadric("Quad",T1,T2,T3,T4,T5);


// Styles :
STL(P1,"c:#0000b2;s:6;f:30");
STL(P2,"c:#0000b2;s:6;f:30");
STL(P3,"c:#0000b2;s:6;f:30");
STL(P4,"c:#0000b2;s:6;f:30");
STL(P5,"c:#0000b2;s:6;f:30");
STL(P6,"c:#0000b2;s:6;f:30");
STL(P7,"c:#0000b2;s:6;f:30");
STL(P8,"c:#0000b2;s:6;f:30");
STL(P9,"c:#0000b2;s:6;f:30");
STL(P10,"c:#0000b2;s:6;f:30");
STL(E1,"c:#31445b;s:7;f:24;p:0;cL:200;cPT:YzojNzgwMDEzO3M6MTA7ZjozMA==");
STL(d1,"c:#780013;s:1;sn:true;f:30;p:0");
STL(d2,"c:#780013;s:1;sn:true;f:30;p:0");
STL(d3,"c:#780013;s:1;sn:true;f:30;p:0");
STL(d4,"c:#780013;s:1;sn:true;f:30;p:0");
STL(d5,"c:#780013;s:1;sn:true;f:30;p:0");
STL(P11,"c:#b40000;s:6;f:30;sp:2");
STL(P12,"c:#b40000;s:6;f:30;sp:2");
STL(P13,"c:#b40000;s:6;f:30;sp:2");
STL(P14,"c:#b40000;s:6;f:30;sp:2");
STL(P15,"c:#b40000;s:6;f:30;sp:2");
STL(L1,"c:#780013;s:1;f:30;p:0");
STL(L2,"c:#780013;s:1;f:30;p:0");
STL(L4,"c:#780013;s:1;f:30;p:0");
STL(L6,"c:#780013;s:1;f:30;p:0");
STL(L8,"c:#780013;s:1;f:30;p:0");
STL(P16,"c:#b40000;s:6;f:30;sp:1");
STL(P17,"c:#0000b2;s:6;f:30");
STL(P18,"c:#0000b2;s:6;f:30");
STL(P19,"c:#0000b2;s:6;f:30");
STL(P20,"c:#0000b2;s:6;f:30");
STL(L3,"c:#780013;s:1;f:30;p:0");
STL(L5,"c:#780013;s:1;f:30;p:0");
STL(L7,"c:#780013;s:1;f:30;p:0");
STL(L9,"c:#780013;s:1;f:30;p:0");
STL(L10,"c:#780013;s:1;f:30;p:0");
STL(T1,"c:#0000b2;s:6;sn:true;f:30");
STL(T2,"c:#0000b2;s:6;sn:true;f:30");
STL(T3,"c:#0000b2;s:6;sn:true;f:30");
STL(T4,"c:#0000b2;s:6;sn:true;f:30");
STL(T5,"c:#0000b2;s:6;sn:true;f:30");
STL(Quad,"c:#ed00ff;s:2.5;f:30;p:500");
SetCoordsStyle("isAxis:false;isGrid:true;isOx:true;isOy:true;isLockOx:false;isLockOy:false;centerZoom:false;color:#111111;fontSize:18;axisWidth:1;gridWidth:0.1");