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Initial data commit

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Ingy döt Net 2023-07-01 11:58:00 -04:00
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commit f23f22d71c
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48
Task/Kronecker-product-based-fractals/JavaScript/kronecker-product-based-fractals-1.js Normal file
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// KPF.js 6/23/16 aev
// HFJS: Plot any matrix mat (filled with 0,1)
function pmat01(mat, color) {
// DCLs
var cvs = document.getElementById('canvId');
var ctx = cvs.getContext("2d");
var w = cvs.width; var h = cvs.height;
var m = mat[0].length; var n = mat.length;
// Cleaning canvas and setting plotting color
ctx.fillStyle="white"; ctx.fillRect(0,0,w,h);
ctx.fillStyle=color;
// MAIN LOOP
for(var i=0; i<m; i++) {
for(var j=0; j<n; j++) {
if(mat[i][j]==1) { ctx.fillRect(i,j,1,1)};
}//fend j
}//fend i
}//func end
// Prime functions:
// Create Kronecker product based fractal matrix rm from matrix m (order=ord)
function ckpbfmat(m,ord) {
var rm=m;
for(var i=1; i<ord; i++) {rm=mkp(rm,m)};
//matpp2doc('R 4 ordd',rm,'*'); // ASCII "plotting" - if you wish to try.
return(rm);
}
// Create and plot Kronecker product based fractal from matrix m (filled with 0/1)
function cpmat(m,ord,color) {
var kpr;
kpr=ckpbfmat(m,ord);
pmat01(kpr,color);
}
// Fractal matrix "pretty" printing to document.
// mat should be filled with 0 and 1; chr is a char substituting 1.
function matpp2doc(title,mat,chr) {
var i,j,re='',e; var m=mat.length; var n=mat[0].length;
document.write('&nbsp;&nbsp;<b>'+title+'</b>:<pre>');
for(var i=0; i<m; i++) {
for(var j=0; j<n; j++) {
e='&nbsp;'; if(mat[i][j]==1) {e=chr}; re+=e;
}//fend j
document.write('&nbsp;&nbsp;'+re+'<br />'); re='';
}//fend i
document.write('</pre>');
}
// mkp function (exotic arrow function): Return the Kronecker product
// of the a and b matrices
mkp=(a,b)=>a.map(a=>b.map(b=>a.map(y=>b.map(x=>r.push(y*x)),t.push(r=[]))),t=[])&&t;

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Task/Kronecker-product-based-fractals/JavaScript/kronecker-product-based-fractals-2.js Normal file
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<!-- VicsekFractal.html -->
<html>
<head>
<title>Vicsek fractal</title>
<script src="KPF.js"></script>
</head>
<body onload="cpmat([[0,1,0],[1,1,1],[0,1,0]],6,'navy')">
<h3>Vicsek fractal</h3>
<a href="SierpCarpetFractal.html"> Next: Sierpinski carpet fractal</a><br />
<canvas id="canvId" width="750" height="750" style="border: 1px outset;"></canvas>
</body></html>

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Task/Kronecker-product-based-fractals/JavaScript/kronecker-product-based-fractals-3.js Normal file
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<!-- SierpCarpetFractal.html -->
<html>
<head>
<title>Sierpinski carpet fractal</title>
<script src="KPF.js"></script>
</head>
<body onload="cpmat([[1,1,1],[1,0,1],[1,1,1]],6,'brown')">
<h3>Sierpinski carpet fractal</h3>
<a href="Checkerboard.html"/> Next: Checkerboard </a><br />
<canvas id="canvId" width="750" height="750" style="border: 1px outset;"></canvas>
</body></html>

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Task/Kronecker-product-based-fractals/JavaScript/kronecker-product-based-fractals-4.js Normal file
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<!-- Checkerboard.html -->
<html>
<head>
<title>Checkerboard</title>
<script src="KPF.js"></script>
</head>
<body onload="cpmat([[0,1,0,1],[1,0,1,0],[0,1,0,1],[1,0,1,0]],5,'black')">
<h3>Checkerboard</h3>
<a href="VicsekFractal.html"/> Next: Vicsek fractal </a><br />
<canvas id="canvId" width="750" height="750" style="border: 1px outset;"></canvas>
</body></html>