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OrnaStrokes_LP.html
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OrnaStrokes_LP.html
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<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>OrnaStrokes</title>
<style type="text/css">
body {
margin: 0px;
padding: 0px;
}
#CSCanvas {
width: 100%; height: 70vh;
display: flex; flex-grow: 0;
background-color: rgba(255,255,255,1); }
#container {
width: 100%; height: 50%;
display: flex; flex-direction: column; }
#controls {
flex-grow: 1; display: flex; flex-direction: row;
width: 100%; height: 80px;
align-items: stretch; text-align: center; align-items: center;
background-color: lightgray; }
.box {
background-color: dodgerblue; border: none;margin: 0px;
flex-grow: 0; color: blue; font-size: 15px;
height: 60px; border-radius: 40%; cursor: pointer; }
.box:hover {
background-color: darkblue; cursor: pointer; }
.slider {
display: flex; flex-direction: row; -webkit-appearance: none;
width: 100px; height: 10px; border-radius: 5px;
outline: none; opacity: 0.8;
-webkit-transition: .2s; transition: opacity .2s;
background: dodgerblue; }
.slider::-webkit-slider-thumb {
-webkit-appearance: none; appearance: none;
width: 18px; height: 18px;
border-radius: 50%; background: darkblue; cursor: pointer; }
.slider::-moz-range-thumb {
width: 20px; height: 20px;
border-radius: 50%; background: darkblue; cursor: pointer; }
</style>
<script type="text/javascript" src="https://cindyjs.org/dist/latest/Cindy.js"></script>
<script type="text/javascript" src="https://cindyjs.org/dist/v0.8/CindyGL.js"></script>
<script id="csinit" type="text/x-cindyscript">
use("CindyGL");
use("TouchEvent");
testind=0;
ptforcelist=[];
allptlist=[];
singlist=[];
singvallist=[];
singlast=[];
crossnew=[];
equicount=0;
equicount2=0;
lastmat=[];
collist=[];
changecanvas=0;
lastpenforce=0;
startnewlist=1;
eps=2;
mouseVec=[100,100];
finger=0;
id=0;
drag=false;
once=false;
param=0;
widval=-10;
aval=-10;
pval=-10;
rgbvec=(0,0,0);
countorna=1;
doorna=true;
xold=0;
amountold=10;
dochangeamount=false;
ornaonoff():=(
countorna=countorna+1;
javascript("setColor('orna')");
);
javascript("setColor('orna')");
//Canvasas
createimage("storecanvas", 1024,512);
createimage("aktcanvas", 1024,512);
createimage("conftestcanvas", 1024,512);
createimage("countcanvas", 1024,512);
createimage("ptcanvas", 1024, 512);
createimage("mpcanvas", 1024, 512);
createimage("equicanvas", 1024, 512);
createimage("mpimcanvas", 1024, 512);
createimage("radcanvas", 1024, 512);
createimage("aktcanvas2", 1024,512);
createimage("conftestcanvas2", 1024,512);
createimage("countcanvas2", 1024,512);
createimage("ptcanvas2", 1024, 512);
createimage("mpcanvas2", 1024, 512);
createimage("equicanvas2", 1024, 512);
createimage("mpimcanvas2", 1024, 512);
createimage("radcanvas2", 1024, 512);
createimage("overlapcanvas", 1024,512);
createimage("overlapcanvas2", 1024,512);
reset() := (
testind=0;
ptforcelist=[];
allptlist=[];
singlist=[];
singvallist=[];
singlast=[];
crossnew=[];
equicount=0;
equicount2=0;
lastmat=[];
changecanvas=0;
collist=[];
lastpenforce=0;
startnewlist=1;
finger=0;
id=0;
drag=false;
param=0;
xold=0;
amountold=10;
dochangeamount=false;
colorplot((0,0),(1024,0),"storecanvas",(0,0,0,-1));
colorplot((0,0),(1024,0),"aktcanvas",(0,0,0,-1));
colorplot((0,0),(1024,0),"conftestcanvas",(0,0,0,-1));
colorplot((0,0),(1024,0),"countcanvas",(0,0,0,-1));
colorplot((0,0),(1024,0),"ptcanvas",(0,0,0,-1));
colorplot((0,0),(1024,0),"mpcanvas",(0,0,0,-1));
colorplot((0,0),(1024,0),"equicanvas",(0,0,0,-1));
colorplot((0,0),(1024,0),"mpimcanvas",(0,0,0,-1));
colorplot((0,0),(1024,0),"radcanvas",(0,0,0,-1));
colorplot((0,0),(1024,0),"aktcanvas2",(0,0,0,-1));
colorplot((0,0),(1024,0),"conftestcanvas2",(0,0,0,-1));
colorplot((0,0),(1024,0),"countcanvas2",(0,0,0,-1));
colorplot((0,0),(1024,0),"ptcanvas2",(0,0,0,-1));
colorplot((0,0),(1024,0),"mpcanvas2",(0,0,0,0));
colorplot((0,0),(1024,0),"equicanvas2",(0,0,0,-1));
colorplot((0,0),(1024,0),"mpimcanvas2",(0,0,0,-1));
colorplot((0,0),(1024,0),"radcanvas2",(0,0,0,-1));
colorplot((0,0),(1024,0),"overlapcanvas",(0,0,0,0));
colorplot((0,0),(1024,0),"overlapcanvas2",(0,0,0,0));
);
undo():=(
lastpenforce=0;
startnewlist=1;
drag=false;
xold=0;
amountold=10;
dochangeamount=false;
changecanvas=0;
colorplot((0,0),(1024,0),"aktcanvas",(0,0,0,-1));
colorplot((0,0),(1024,0),"conftestcanvas",(0,0,0,-1));
colorplot((0,0),(1024,0),"countcanvas",(0,0,0,-1));
colorplot((0,0),(1024,0),"ptcanvas",(0,0,0,-1));
colorplot((0,0),(1024,0),"mpcanvas",(0,0,0,-1));
colorplot((0,0),(1024,0),"equicanvas",(0,0,0,-1));
colorplot((0,0),(1024,0),"mpimcanvas",(0,0,0,-1));
colorplot((0,0),(1024,0),"radcanvas",(0,0,0,-1));
colorplot((0,0),(1024,0),"aktcanvas2",(0,0,0,-1));
colorplot((0,0),(1024,0),"conftestcanvas2",(0,0,0,-1));
colorplot((0,0),(1024,0),"countcanvas2",(0,0,0,-1));
colorplot((0,0),(1024,0),"ptcanvas2",(0,0,0,-1));
colorplot((0,0),(1024,0),"mpcanvas2",(0,0,0,0));
colorplot((0,0),(1024,0),"equicanvas2",(0,0,0,-1));
colorplot((0,0),(1024,0),"mpimcanvas2",(0,0,0,-1));
colorplot((0,0),(1024,0),"radcanvas2",(0,0,0,-1));
colorplot((0,0),(1024,0),"overlapcanvas",(0,0,0,0));
colorplot((0,0),(1024,0),"overlapcanvas2",(0,0,0,0));
);
loadvar=0;
imratio=1;
scvel=64;
scvelnew=1024;
base=256;
clampvel(x):=max(min(x,1),0);
//splitData and restoreData functions
compvel(u,scvel,base):=(
ux=clampvel(u_1/scvel);
uy=clampvel(u_2/scvel);
uxh=round(ux*base)/base;
uyh=round(uy*base)/base;
uxl=round((ux-uxh)*base*base)/base;
uyl=round((uy-uyh)*base*base)/base;
(uxh,uyh,uxl,uyl);
);
expvel(u,scvel,base):=(
ur=((u_1)+(u_3)/base,(u_2)+(u_4)/base,0,0);
ur*scvel;
);
compmp(u,scvel,base):=(
ux=clampvel(u_1/scvel);
uxh=round(ux*base)/base;
uxl=round((ux-uxh)*base*base)/base;
(uxh,uxl,u_3,u_4);
);
expmp(u,scvel,base):=(
ur1=((u_1)+(u_2)/base)*scvel;
(ur1,16,u_3,u_4)
);
compvelnew(u,scvelnew,base):=(
ux=clampvel(u_1/scvelnew);
uy=clampvel(u_2/scvelnew);
uxh=round(ux*base)/base;
uyh=round(uy*base)/base;
uxl=round((ux-uxh)*base*base)/base;
uyl=round((uy-uyh)*base*base)/base;
(uxh,uyh,uxl,uyl);
);
expvelnew(u,scvelnew,base):=(
ur=((u_1)+(u_3)/base,(u_2)+(u_4)/base,0,0);
ur*scvelnew;
);
compmpequi(u,base):=(
ux=clampvel(u_1/base);
uy=clampvel(u_2/base);
uxh=round(ux*base)/base;
uyh=round(uy*base)/base;
uxl=round((ux-uxh)*base*base)/base;
uyl=round((uy-uyh)*base*base)/base;
(uxh,uyh,uxl,uyl);
);
expmpequi(u,base):=(
ur=((u_1)+(u_3)/base,(u_2)+(u_4)/base,0,0);
ur*base;
);
lerp(x,y,t):=t*y+(1-t)*x;
//Cubic splines
sp(t,v):=(1, t, t^2, t^3)*1/6*((1,4,1,0),(-3,0,3,0),(3,-6,3,0),(-1,3,-3,1))*v;
sr(t,v):=(1, t, t^2, t^3)*1/6*((1,4,1,0),(-3,0,3,0),(3,-6,3,0),(-1,3,-3,1))*v;
spd(t,v):=(0, 1, 2*t, 3*t^2)*1/6*((1,4,1,0),(-3,0,3,0),(3,-6,3,0),(-1,3,-3,1))*v;
srd(t,v):=(0, 1, 2*t, 3*t^2)*1/6*((1,4,1,0),(-3,0,3,0),(3,-6,3,0),(-1,3,-3,1))*v;
spd2(t,v):=(0, 0, 2, 6*t)*1/6*((1,4,1,0),(-3,0,3,0),(3,-6,3,0),(-1,3,-3,1))*v;
srd2(t,v):=(0, 0, 2, 6*t)*1/6*((1,4,1,0),(-3,0,3,0),(3,-6,3,0),(-1,3,-3,1))*v;
spd3(t,v):=(0, 0, 0, 6)*1/6*((1,4,1,0),(-3,0,3,0),(3,-6,3,0),(-1,3,-3,1))*v;
srd3(t,v):=(0, 0, 0, 6)*1/6*((1,4,1,0),(-3,0,3,0),(3,-6,3,0),(-1,3,-3,1))*v;
wp(t,vp,vr):=sp(t,vp)-sr(t,vr)*srd(t,vr)/|spd(t,vp)|^2*spd(t,vp)+sr(t,vr)/|spd(t,vp)|^2*Re(sqrt(|spd(t,vp)|^2-srd(t,vr)^2))*((0,-1),(1,0))*spd(t,vp);
wm(t,vp,vr):=sp(t,vp)-sr(t,vr)*srd(t,vr)/|spd(t,vp)|^2*spd(t,vp)-sr(t,vr)/|spd(t,vp)|^2*Re(sqrt(|spd(t,vp)|^2-srd(t,vr)^2))*((0,-1),(1,0))*spd(t,vp);
wp1(t,vp1,vp2,vr):=sp(t,vp1)-sr(t,vr)*srd(t,vr)/|(spd(t,vp1),spd(t,vp2))|^2*spd(t,vp1)+sr(t,vr)/|(spd(t,vp1),spd(t,vp2))|^2*Re(sqrt(|(spd(t,vp1),spd(t,vp2))|^2-srd(t,vr)^2))*(-1)*spd(t,vp2);
wm1(t,vp1,vp2,vr):=sp(t,vp1)-sr(t,vr)*srd(t,vr)/|(spd(t,vp1),spd(t,vp2))|^2*spd(t,vp1)-sr(t,vr)/|(spd(t,vp1),spd(t,vp2))|^2*Re(sqrt(|(spd(t,vp1),spd(t,vp2))|^2-srd(t,vr)^2))*(-1)*spd(t,vp2);
wp2(t,vp1,vp2,vr):=sp(t,vp2)-sr(t,vr)*srd(t,vr)/|(spd(t,vp1),spd(t,vp2))|^2*spd(t,vp2)+sr(t,vr)/|(spd(t,vp1),spd(t,vp2))|^2*Re(sqrt(|(spd(t,vp1),spd(t,vp2))|^2-srd(t,vr)^2))*spd(t,vp1);
wm2(t,vp1,vp2,vr):=sp(t,vp2)-sr(t,vr)*srd(t,vr)/|(spd(t,vp1),spd(t,vp2))|^2*spd(t,vp2)-sr(t,vr)/|(spd(t,vp1),spd(t,vp2))|^2*Re(sqrt(|(spd(t,vp1),spd(t,vp2))|^2-srd(t,vr)^2))*spd(t,vp1);
testsecdiff(x,y,t,vp,vr):=-2*((x-sp(t,vp)_1)*spd2(t,vp)_1-(spd(t,vp)_1)^2+(y-sp(t,vp)_2)*spd2(t,vp)_2-(spd(t,vp)_2)^2+sr(t,vr)*srd2(t,vr)+(srd(t,vr)^2));
wpd(t,vp,vr):=spd(t,vp)*(1-srd(t,vr)^2/|spd(t,vp)|^2-(sr(t,vr)*srd2(t,vr))/|spd(t,vp)|^2+(2*sr(t,vr)*srd(t,vr)*(spd(t,vp)_1*spd2(t,vp)_1+spd(t,vp)_2*spd2(t,vp)_2))/|spd(t,vp)|^4)
-spd2(t,vp)*sr(t,vr)*srd(t,vr)/|spd(t,vp)|^2+((0,-1),(1,0))*spd2(t,vp)*sr(t,vr)/|spd(t,vp)|^2*Re(sqrt(|spd(t,vp)|^2-srd(t,vr)^2))
+((0,-1),(1,0))*spd(t,vp)*(srd(t,vr)/|spd(t,vp)|^2*Re(sqrt(|spd(t,vp)|^2-srd(t,vr)^2))-2*sr(t,vr)*(spd(t,vp)_1*spd2(t,vp)_1+spd(t,vp)_2*spd2(t,vp)_2)/|spd(t,vp)|^4*Re(sqrt(|spd(t,vp)|^2-srd(t,vr)^2))
+sr(t,vr)/|spd(t,vp)|^2*(spd(t,vp)_1*spd2(t,vp)_1+spd(t,vp)_2*spd2(t,vp)_2-srd(t,vr)*srd2(t,vr))/Re(sqrt(|spd(t,vp)|^2-srd(t,vr)^2)));
wmd(t,vp,vr):=spd(t,vp)*(1-srd(t,vr)^2/|spd(t,vp)|^2-(sr(t,vr)*srd2(t,vr))/|spd(t,vp)|^2+(2*sr(t,vr)*srd(t,vr)*(spd(t,vp)_1*spd2(t,vp)_1+spd(t,vp)_2*spd2(t,vp)_2))/|spd(t,vp)|^4)
-spd2(t,vp)*sr(t,vr)*srd(t,vr)/|spd(t,vp)|^2-((0,-1),(1,0))*spd2(t,vp)*sr(t,vr)/|spd(t,vp)|^2*Re(sqrt(|spd(t,vp)|^2-srd(t,vr)^2))
-((0,-1),(1,0))*spd(t,vp)*(srd(t,vr)/|spd(t,vp)|^2*Re(sqrt(|spd(t,vp)|^2-srd(t,vr)^2))-2*sr(t,vr)*(spd(t,vp)_1*spd2(t,vp)_1+spd(t,vp)_2*spd2(t,vp)_2)/|spd(t,vp)|^4*Re(sqrt(|spd(t,vp)|^2-srd(t,vr)^2))
+sr(t,vr)/|spd(t,vp)|^2*(spd(t,vp)_1*spd2(t,vp)_1+spd(t,vp)_2*spd2(t,vp)_2-srd(t,vr)*srd2(t,vr))/Re(sqrt(|spd(t,vp)|^2-srd(t,vr)^2)));
detvec(v,w):=v_1*w_2-v_2*w_1;
curvcompare(t,vp,vr):=(|spd(t,vp)|^2-srd(t,vr)^2-sr(t,vr)*srd2(t,vr)+sr(t,vr)*srd(t,vr)/(|spd(t,vp)|^2)*(spd(t,vp)_1*spd2(t,vp)_1+spd(t,vp)_2*spd2(t,vp)_2))/(|spd(t,vp)|*sr(t,vr)*sqrt(|spd(t,vp)|^2-srd(t,vr)^2));
curvature(t,vp):=(detvec(spd(t,vp),spd2(t,vp)))/(|spd(t,vp)|^3);
dcurv(t,vp):=(detvec(spd(t,vp),spd3(t,vp))*|spd(t,vp)|^3-detvec(spd(t,vp),spd2(t,vp))*3*|spd(t,vp)|*(spd(t,vp)*spd2(t,vp)))/(|spd(t,vp)|^6);
evolute(t,vp):=sp(t,vp)+1/curvature(t,vp)*((0,-1),(1,0))*spd(t,vp)/|spd(t,vp)|;
drawtocanvas(newdist, newallpt, newallrad, newvec, xold, equicount, collist, allptlist, changecanvas, equicount2, lastmat):=(
if(doorna,
newvnorm=1/|newvec|*newvec;
vec3=newallrad*newvnorm;
vec4=(vec3_2,-vec3_1);
distpix=2*newallrad;
mal=newdist*32/(distpix);
xbefore=xold;
xold=xold+mal;
x1=mod(xold,imratio*64);
x2=mod(32+xold,imratio*64);
if(x1>x2,
x1=mod(-imratio*32+xold,imratio*64);
x2=mod(-imratio*32+32+xold,imratio*64);
);
mat=map(newallpt-vec3+vec4,newallpt+vec3+vec4,(x1,0),(x2,0));
ptnew=newallpt;
fval=newallrad;
if(changecanvas==0,
equicount=equicount+1;
colorplot((0,0),(1024,0),"ptcanvas",
col=imagergba((0,0),(1024,0),"ptcanvas",#);
ins=imagergba((0,0),(1024,0),"mpcanvas",#);
pointc=(ptnew_1-#.x,ptnew_2-#.y);
impt=(mat*(#.x,#.y,1)).xy;
if(|pointc|<=fval+0.5,
if(ins_4<1 ,
col=compvel((impt_1,impt_2,0,1),scvel,base); );
);
col
); //end colorplot
colorplot((0,0),(1024,0),"mpimcanvas", interpolate->false,
colnew=imagergba((0,0),(1024,0),"mpimcanvas",#);
col=imagergba((0,0),(1024,0),"mpcanvas",#);
pointc=(ptnew_1-#.x,ptnew_2-#.y);
if(|pointc|<=fval+0.5,
if(col_4<1, colnew=compvelnew((ptnew_1,ptnew_2,0,1),scvelnew,base); );
);
colnew
);//end colorplot
colorplot((0,0),(1024,0),"radcanvas", interpolate->false,
coln=imagergba((0,0),(1024,0),"radcanvas",#);
col=imagergba((0,0),(1024,0),"mpcanvas",#);
pointc=(ptnew_1-#.x,ptnew_2-#.y);
if(|pointc|<=fval+0.5,
if(col_4<1, coln=compmpequi((floor(fval),(fval-floor(fval))*100,0,1),base); );
);
coln
);//end colorplot
eone=mod(equicount,256);
etwo=floor(equicount/256);
colorplot((0,0),(1024,0),"equicanvas",
col=imagergba((0,0),(1024,0),"equicanvas",#);
ins=imagergba((0,0),(1024,0),"mpcanvas",#);
pointc=(ptnew_1-#.x,ptnew_2-#.y);
if(|pointc|<=fval+0.5,
if(ins_4<1, col=compmpequi((eone,etwo,0,1),base););
);
col
);//end colorplots
pt=(mat*(ptnew_1,ptnew_2,1)).xy;
colorplot((0,0),(1024,0),"mpcanvas",
col=imagergba((0,0),(1024,0),"mpcanvas",#);
pointc=(ptnew_1-#.x,ptnew_2-#.y);
if(|pointc|<=fval+0.5,
if(col_4<1,
col=compmp((pt_1,16,0,1),scvel,base); );
);
col
);//end colorplots
,//changecanvas==1
equicount2=equicount2+1;
if(equicount2==1,
colorplot((0,0),(1024,0),"overlapcanvas",
col=imagergba((0,0),(1024,0),"overlapcanvas",#);
ins=imagergba((0,0),(1024,0),"mpcanvas",#);
pointc=(ptnew_1-#.x,ptnew_2-#.y);
if(|pointc|<=fval+0.5,
if(ins_4<1 ,
col=(1,0,1,1);
);
);
col
); //end colorplot
ptold=allptlist_(-2)_1;
radold=allptlist_(-2)_2;
colorplot((0,0),(1024,0),"overlapcanvas2",
col=imagergba((0,0),(1024,0),"overlapcanvas2",#);
ins=imagergba((0,0),(1024,0),"mpcanvas2",#);
pointc=(ptold_1-#.x,ptold_2-#.y);
if(|pointc|<=radold+0.5,
if(ins_4<1 ,
col=(1,0,0,1);
);
);
col
); //end colorplot
); //end if equicount2==1
colorplot((0,0),(1024,0),"ptcanvas2",
col=imagergba((0,0),(1024,0),"ptcanvas2",#);
ins=imagergba((0,0),(1024,0),"mpcanvas2",#);
ins2=imagergba((0,0),(1024,0),"overlapcanvas2",#);
pointc=(ptnew_1-#.x,ptnew_2-#.y);
impt=(mat*(#.x,#.y,1)).xy;
if(|pointc|<=fval+0.5,
if((ins_4+ins2_4)<1 ,
col=compvel((impt_1,min(max(0,impt_2),32),0,1),scvel,base); );
);
col
); //end colorplot
colorplot((0,0),(1024,0),"mpimcanvas2", interpolate->false,
colnew=imagergba((0,0),(1024,0),"mpimcanvas2",#);
col=imagergba((0,0),(1024,0),"mpcanvas2",#);
ins2=imagergba((0,0),(1024,0),"overlapcanvas2",#);
pointc=(ptnew_1-#.x,ptnew_2-#.y);
if(|pointc|<=fval+0.5,
if((col_4+ins2_4)<1,
colnew=compvelnew((ptnew_1,ptnew_2,0,1),scvelnew,base);
);
);
colnew
);//end colorplot
colorplot((0,0),(1024,0),"radcanvas2", interpolate->false,
coln=imagergba((0,0),(1024,0),"radcanvas2",#);
col=imagergba((0,0),(1024,0),"mpcanvas2",#);
ins2=imagergba((0,0),(1024,0),"overlapcanvas2",#);
pointc=(ptnew_1-#.x,ptnew_2-#.y);
if(|pointc|<=fval+0.5,
if((col_4+ins2_4)<1,
coln=compmpequi((floor(fval),(fval-floor(fval))*100,0,1),base);
);
);
coln
);//end colorplot
eone=mod(equicount2,256);
etwo=floor(equicount2/256);
colorplot((0,0),(1024,0),"equicanvas2",
col=imagergba((0,0),(1024,0),"equicanvas2",#);
ins=imagergba((0,0),(1024,0),"mpcanvas2",#);
ins2=imagergba((0,0),(1024,0),"overlapcanvas2",#);
pointc=(ptnew_1-#.x,ptnew_2-#.y);
if(|pointc|<=fval+0.5,
if((ins_4+ins2_4)<1,
col=compmpequi((eone,etwo,0,1),base);
);
);
col
);//end colorplot
pt=(mat*(ptnew_1,ptnew_2,1)).xy;
colorplot((0,0),(1024,0),"mpcanvas2",
col=imagergba((0,0),(1024,0),"mpcanvas2",#);
ins2=imagergba((0,0),(1024,0),"overlapcanvas2",#);
pointc=(ptnew_1-#.x,ptnew_2-#.y);
if(|pointc|<=fval+0.5,
if((col_4+ins2_4)<1,
col=compmp((pt_1,16,0,1),scvel,base);
);
);
col
);//end colorplot
);//end if changecanvas
lastmat=mat;
, //no orna
ptnew=newallpt;
fval=newallrad;
colorplot((0,0),(1024,0),"mpcanvas",
col=imagergba((0,0),(1024,0),"mpcanvas",#);
pointc=(ptnew_1-#.x,ptnew_2-#.y);
if(|pointc|<=fval+0.5,
if(col_4<1,col=(0,0,0,1););
);
col
);//end colorplot
colorplot((0,0),(1024,0),"aktcanvas",
col=imagergba((0,0),(1024,0),"aktcanvas", # , interpolate->true);
pointc=(ptnew_1-#.x,ptnew_2-#.y);
if(|pointc|<=fval+0.5,if(col_4<=1,col=(collist_1,collist_2,collist_3,1)));
col
); //end colorplot
colorplot((0,0),(1024,0),"aktcanvas",
col=imagergba((0,0),(1024,0),"aktcanvas",#,interpolate->true);
if(col_4<1,
count=0;
list=[[1,0],[0,1],[-1,0],[0,-1]];
repeat(4,i,
coln=imagergba((0,0),(1024,0),"aktcanvas",#+list_i,interpolate->true);
if(coln_4>=1,count=count+1);
);//end repeat
if(count>=2,
col=(collist_1,collist_2,collist_3,0.9);
);//end if count
);//end if col
col
);//end colorplot
colorplot((0,0),(1024,0),"aktcanvas",
col=imagergba((0,0),(1024,0),"aktcanvas",#,interpolate->true);
if(col_4<0.9,
count=0;
list=[[1,0],[0,1],[-1,0],[0,-1]];
repeat(4,i,
coln=imagergba((0,0),(1024,0),"aktcanvas",#+list_i,interpolate->true);
if(coln_4>=0.9,count=count+1);
);//end repeat
if(count>=2,
col=(collist_1,collist_2,collist_3,0.8);
);//end if count
);//end if col
col
);//end colorplot
);//end doorna
[xold,equicount,equicount2, lastmat]
);//end drawtocanvas
fun(eps, penforceVal , alti, mousePos, lastpenforce, startnewlist, ptforcelist,allptlist,equicount, collist, param, xold, singlist, singvallist, changecanvas, equicount2, lastmat, singlast ):=(
javascript("var wslider = document.getElementById('wRange'); cdy.evokeCS('widval='+wslider.value/100+';'); wslider.oninput = function() {cdy.evokeCS('widval='+ this.value/100+';')};");
javascript("var aslider = document.getElementById('aRange'); cdy.evokeCS('aval='+aslider.value/100+';'); aslider.oninput = function() {cdy.evokeCS('aval='+ this.value/100+';')};");
javascript("var pslider = document.getElementById('pRange'); cdy.evokeCS('pval='+pslider.value/100+';'); pslider.oninput = function() {cdy.evokeCS('pval='+ this.value/100+';')};");
javascript("var colorval = document.getElementById('color');col=colorval.value;colorval.oninput = function() {col = this.value;};colrgb=hexToRgb(col); cdy.evokeCS('rgbvec_1='+colrgb.r/255+';rgbvec_2='+colrgb.g/255+';rgbvec_3='+colrgb.b/255+';');");
if(penforceVal>0,
javascript("document.getElementById('undo').style.color = 'blue';");
javascript("document.getElementById('reset').style.color = 'blue';");
if(alti<=0,
penforceVal=40*widval;
,
penforceVal=40*((1-pval)*(aval*(1-alti*2/pi)+(1-aval)*widval)+pval*penforceVal);
);
if(lastpenforce<=0,
startnewlist=1;
param=0;
penforce=penforceVal;
,
penforce=lerp(lastpenforce,penforceVal,0.5);
); //end lastpenforce
if(startnewlist==1,
testind=0;
ptforcelist=[];
allptlist=[];
singlist=[];
singvallist=[];
singlast=[];
crossnew=[];
equicount=0;
equicount2=0;
lastmat=[];
collist=(0,0,0);
startnewlist=0;
); //end if startnewlist
collist=rgbvec;
ok=false;
if(length(ptforcelist)>0,
l=length(ptforcelist);
newpos=lerp(ptforcelist_l_1,mousePos,0.8);
compVal=dist(ptforcelist_l_1,newpos);
if(compVal>=eps,
if(penforce<10,
penforce=10;
);//end if penforceVal
ok=true;
);
,
newpos=mousePos;
if(penforce<10,
penforce=10;
);
ok=true;
);//end if
if(ok,
ptforcelist=concat(ptforcelist,[[newpos,penforce]]);
n=length(ptforcelist);
if(n==1,
allptlist=concat(allptlist,[[newpos,penforce]]);
);
if(n>=2,
if(n==2,
equicount=1;
if(doorna,
vec1=ptforcelist_2_1-ptforcelist_1_1;
vec2=1/|vec1|*vec1;
vec3=ptforcelist_1_2*vec2;
vec4=(vec3_2,-vec3_1);
xold=0;
mat=map(ptforcelist_1_1-vec3+vec4,ptforcelist_1_1+vec3+vec4,(0,0),(32,0));
lastmat=mat;
colorplot((0,0),(1024,0),"ptcanvas",
pointc=(ptforcelist_1_1_1-#.x,ptforcelist_1_1_2-#.y);
impt=(mat*(#.x,#.y,1)).xy;
if(|pointc|<=ptforcelist_1_2+0.5,
col=compvel((impt_1,min(max(0,impt_2),32),0,1),scvel,base);
,col=(0,0,0,-1));
col
);//end colorplot
colorplot((0,0),(1024,0),"mpimcanvas", interpolate->false,
col=(0,0,0,-1);
pointc=(ptforcelist_1_1_1-#.x,ptforcelist_1_1_2-#.y);
if(|pointc|<=ptforcelist_1_2+0.5,
col=compvelnew((ptforcelist_1_1_1,ptforcelist_1_1_2,0,1),scvelnew,base);
);
col
);//end colorplot
colorplot((0,0),(1024,0),"radcanvas", interpolate->false,
col=(0,0,0,-1);
pointc=(ptforcelist_1_1_1-#.x,ptforcelist_1_1_2-#.y);
if(|pointc|<=ptforcelist_1_2+0.5,
col=compmpequi((floor(ptforcelist_1_2),(ptforcelist_1_2-floor(ptforcelist_1_2))*100,0,1),base);
);
col
);//end colorplot
pt=(mat*(ptforcelist_1_1_1,ptforcelist_1_1_2,1)).xy;
colorplot((0,0),(1024,0),"mpcanvas", interpolate->false,
col=(0,0,0,-1);
pointc=(ptforcelist_1_1_1-#.x,ptforcelist_1_1_2-#.y);
if(|pointc|<=ptforcelist_1_2+0.5,
col=compmp((pt_1,16,0,1),scvel,base);
);
col
);//end colorplot
eone=mod(equicount,256);
etwo=floor(equicount/256);
colorplot((0,0),(1024,0),"equicanvas", interpolate->false,
col=(0,0,0,-1);
pointc=(ptforcelist_1_1_1-#.x,ptforcelist_1_1_2-#.y);
if(|pointc|<=ptforcelist_1_2+0.5,
col=compmpequi((eone,etwo,0,1),base);
);
col
);//end colorplot
, //no orna
colorplot((0,0),(1024,0),"aktcanvas",
col=imagergba((0,0),(1024,0),"aktcanvas",#,interpolate->true);
pointc=(ptforcelist_1_1_1-#.x,ptforcelist_1_1_2-#.y);
if(|pointc|<=ptforcelist_1_2+0.5,col=(collist_1,collist_2,collist_3,1));
col
);//end colorplot
colorplot((0,0),(1024,0),"aktcanvas",
col=imagergba((0,0),(1024,0),"aktcanvas",#,interpolate->true);
if(col_4<1,
count=0;
list=[[1,0],[0,1],[-1,0],[0,-1]];
repeat(4,i,
coln=imagergba((0,0),(1024,0),"aktcanvas",#+list_i,interpolate->true);
if(coln_4>=1,count=count+1);
);//end repeat
if(count>=2,
col=(collist_1,collist_2,collist_3,0.9);
);//end if count
);//end if col
col
);//end colorplot
colorplot((0,0),(1024,0),"aktcanvas",
col=imagergba((0,0),(1024,0),"aktcanvas",#,interpolate->true);
if(col_4<0.9,
count=0;
list=[[1,0],[0,1],[-1,0],[0,-1]];
repeat(4,i,
coln=imagergba((0,0),(1024,0),"aktcanvas",#+list_i,interpolate->true);
if(coln_4>=0.9,count=count+1);
);//end repeat
if(count>=2,
col=(collist_1,collist_2,collist_3,0.8);
);//end if count
);//end if col
col
);//end colorplot
);//end doorna
lastpenforce=ptforcelist_1_2;
);//end if n==2
if(n>=3,
if(n==3,
p0=2*ptforcelist_1_1-ptforcelist_2_1;
,
p0=ptforcelist_(n-3)_1;
);
p1=ptforcelist_(n-2)_1;
p2=ptforcelist_(n-1)_1;
p3=ptforcelist_(n)_1;
vp=(p0,p1,p2,p3);
if(n==3,
r0=ptforcelist_1_2;
,
r0=ptforcelist_(n-3)_2;
);
r1=ptforcelist_(n-2)_2;
r2=ptforcelist_(n-1)_2;
r3=ptforcelist_(n)_2;
vr=(r0,r1,r2,r3);
//singular boundary points
/*
pluslist=apply(0..99,testsecdiff(wp(#/100,vp,vr)_1,wp(#/100,vp,vr)_2,#/100,vp,vr));
minuslist=apply(0..99,testsecdiff(wm(#/100,vp,vr)_1,wm(#/100,vp,vr)_2,#/100,vp,vr));
singvallist=concat(singvallist,[[pluslist,minuslist]]);
*/
epsi=0.5;
pix=5;
lastallpt=allptlist_(length(allptlist))_1;
repeat(100,z,
takt=z*0.01;
//find singular envelope points
/*
kap=curvature(takt,vp);
kapcompare=curvcompare(takt,vp,vr);
if(|kap-kapcompare|<=0.005,
newsing=wp(takt,vp,vr);
if(length(singlist)>0,
oldsing=singlist_(-1)_1;,oldsing=(2000,2000););
if(|newsing-oldsing|>0.01,
singlist=concat(singlist,[[wp(takt,vp,vr),(0,1,0)]]);
if(testind==1,
testind=10;
);
);
,
if(|kap+kapcompare|<=0.005,
newsing=wm(takt,vp,vr);
if(length(singlist)>0,
oldsing=singlist_(-1)_1;,oldsing=(2000,2000););
if(|newsing-oldsing|>0.01,
singlist=concat(singlist,[[wm(takt,vp,vr),(0,1,0)]]);
if(testind==1,
testind=-10;
);
);
);
);
curvrad=dcurv(takt,vp)*(-1)/curvature(takt,vp)^2;
if(|curvrad|<=0.05,
l1=join(wm(takt,vp,vr),wp(takt,vp,vr));
l2=join(wm(takt-0.01,vp,vr),wp(takt-0.01,vp,vr));
newsing=meet(l1,l2).xy;
//newsing=sp(takt,vp);
oldsing=singlist_(-1)_1;
if(|newsing-oldsing|>0.1,
//singlist=concat(singlist,[[evolute(takt,vp),(1,0,0)]]);
singlist=concat(singlist,[[newsing,(0,0,1)]]);
testind=1;
);
);
if(testind==10,
bdypt=wp(takt,vp,vr).xy;
refbdy=imagergba((0,0),(1024,0),"mpcanvas",bdypt);
if(refbdy_4<1,
singlist=concat(singlist,[[wp(takt-0.01,vp,vr),(1,0,1)]]);
testind=0;
);
);
if(testind==-10,
bdypt=wm(takt,vp,vr).xy;
refbdy=imagergba((0,0),(1024,0),"mpcanvas",bdypt);
if(refbdy_4<1,
singlist=concat(singlist,[[wm(takt-0.01,vp,vr),(1,0,1)]]);
testind=0;
);
);
*/
newcandidate=sp(takt,vp);
newdist=|newcandidate-lastallpt|;
dgamma=spd(takt,vp);
drad=srd(takt,vr);
critvar=(drad^2<|dgamma|^2);
if(and(critvar,|newdist-pix|<epsi),
allptlist=concat(allptlist,[[sp(takt,vp),sr(takt,vr)]]);
if(changecanvas==0,
crit=[];
repeat(length(allptlist),
ind=length(allptlist)-(#-1);
if(allptlist_(-1)_2+allptlist_(ind)_2+2>=|allptlist_(-1)_1-allptlist_(ind)_1|,
crit=concat(crit,[[ind,|allptlist_(-1)_1-allptlist_(ind)_1|]]);
);
);
critresult=crit;
contin=true;
repeat(length(crit),
if(contin,
if(crit_#_1==length(allptlist)-(#-1),
critresult=critresult_(2..length(critresult));
,
contin=false;
);
);//end if contin
); //end repeat crit
if(length(critresult)>0,
changecanvas=1;
); //end if
);//end if changecanvas
lastallpt=allptlist_(length(allptlist))_1;
retvec=drawtocanvas(newdist,sp(takt,vp),sr(takt,vr),spd(takt,vp),xold,equicount,collist,allptlist,changecanvas, equicount2, lastmat);
xold=retvec_1;
equicount=retvec_2;
equicount2=retvec_3;
lastmat=retvec_4;
);//end if
);//end repeat
);//end if n>=4
);//end if n>=2
lastpenforce=penforce;
);//end if ok
,
lastpenforce=0;
n=0;
);//end if penforce
[lastpenforce, startnewlist, ptforcelist, equicount, param, collist, xold, allptlist,singlist, singvallist, changecanvas, equicount2, lastmat, singlast, crossnew ]
);//end fun
circinverse(ptinv,middle,radius):=(
distnew=(radius*radius)/|ptinv-middle|;
vec=ptinv-middle;
vec=1/|vec|*vec;
inverse=(middle+distnew*vec).xy;
inverse
);//end circinverse
list=[];
repeat(8,
list=concat(list,[[cos((#-1)/8*2*pi),sin((#-1)/8*2*pi)]]);
);
repeat(8,
list=concat(list,[[2*cos((#-1)/8*2*pi),2*sin((#-1)/8*2*pi)]]);
);
listj=[];
repeat(8,
listj=concat(listj,[[cos((#+3)/8*2*pi),sin((#+3)/8*2*pi)]]);
);
repeat(8,
listj=concat(listj,[[2*cos((#+3)/8*2*pi),2*sin((#+3)/8*2*pi)]]);
);
averpos(p,which):=(
pointa=(0,0);
count=0;
pointret=(0,0,0,0);
if(which==0,
pdir=expvel(imagergba((0,0),(1024,0),"ptcanvas",p, interpolate->false),scvel,base);
mpdir=expmp(imagergba((0,0),(1024,0),"mpcanvas",p, interpolate->false),scvel,base);
,
pdir=expvel(imagergba((0,0),(1024,0),"ptcanvas2",p, interpolate->false),scvel,base);
mpdir=expmp(imagergba((0,0),(1024,0),"mpcanvas2",p, interpolate->false),scvel,base);
);//end if which
repeat(16,l,
if(which==0,
pt=expvel(imagergba((0,0),(1024,0),"ptcanvas",p+list_l, interpolate->false),scvel,base);
hpt=expmp(imagergba((0,0),(1024,0),"mpcanvas",p+list_l, interpolate->false),scvel,base);
,
pt=expvel(imagergba((0,0),(1024,0),"ptcanvas2",p+list_l, interpolate->false),scvel,base);
hpt=expmp(imagergba((0,0),(1024,0),"mpcanvas2",p+list_l, interpolate->false),scvel,base);
);//end which
if(hpt_4>0,
if(abs(hpt_1-mpdir_1)>imratio*16,
if(hpt_1>mpdir_1, pa1=pt_1-imratio*32 , pa1=pt_1+imratio*32 );
, pa1=pt_1 ); //end if abs
pa2=pt_2;
pointa=pointa+(pa1,pa2);
count=count+1;
);//end if hpt
);//end repeat
pointpro=1/count*pointa;
pointret=compvel((pointpro_1,pointpro_2,0,1),scvel,base);
if(count<16,
if(which==0,
pmp=expmpequi(imagergba((0,0),(1024,0),"equicanvas", p, interpolate->false),base);
,
pmp=expmpequi(imagergba((0,0),(1024,0),"equicanvas2", p, interpolate->false),base);
);//end if which
fl=pmp_2*256+pmp_1;
pointa=[0,0];
count=0;
if(which==0,
cent=expmp(imagergba((0,0),(1024,0),"mpcanvas", p, interpolate->false),scvel,base);
,
cent=expmp(imagergba((0,0),(1024,0),"mpcanvas2", p, interpolate->false),scvel,base);
);//end which
ocent=[cent_1,cent_2];
repeat(8,i,
if(which==0,
lpt=expvel(imagergba((0,0),(1024,0),"ptcanvas",p+list_i, interpolate->false),scvel,base);
lhpt=expmp(imagergba((0,0),(1024,0),"mpcanvas",p+list_i, interpolate->false),scvel,base);