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Add tileStartPos function and update version

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Introduced tileStartPos to calculate tile coordinates based on index, size, and columns. Updated VERSIONINFO to 1.0.1 and exported the new function.
This commit is contained in:
Namhyeon Go 2025-08-18 07:20:01 +09:00
parent 717b141cb7
commit ab869556c4
1 changed files with 13 additions and 2 deletions
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15
lib/extramath.js
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@ -56,7 +56,7 @@ function measureSimilarity(s1, s2) {
}
function export_measureSimilarity() {
return "var ExtraMath=function(){};ExtraMath.DTM=function(){this.data=[],this.terms=[],this.add=function(t){for(var r=t.trim().split(/\s+/),a=0;a<r.length;a++)0>this.terms.indexOf(r[a])&&this.terms.push(r[a]);this.data.push(r)},this.toArray=function(){for(var t=[],r=0;r<this.data.length;r++){for(var a=[],s=0;s<this.terms.length;s++)a.push(0>this.data[r].indexOf(this.terms[s])?0:1);t.push(a)}return t}},ExtraMath.arrayCos=function(t,r){var a=0,s=0,h=0;for(i=0;i<t.length;i++)a+=t[i]*r[i],s+=t[i]*t[i],h+=r[i]*r[i];return a/((s=Math.sqrt(s))*(h=Math.sqrt(h)))},ExtraMath.measureSimilarity=function(t,r){var a=new ExtraMath.DTM;a.add(t),a.add(r);var s=a.toArray();return ExtraMath.arrayCos(s[0],s[1])};";
return "var ExtraMath=function(){};ExtraMath.DTM=function(){this.data=[],this.terms=[],this.add=function(t){for(var r=t.trim().split(/\s+/),a=0;a<r.length;a++)0>this.terms.indexOf(r[a])&&this.terms.push(r[a]);this.data.push(r)},this.toArray=function(){for(var t=[],r=0;r<this.data.length;r++){for(var a=[],s=0;s<this.terms.length;s++)a.push(0>this.data[r].indexOf(this.terms[s])?0:1);t.push(a)}return t}},ExtraMath.arrayCos=function(t,r){var a=0,s=0,h=0;for(i=0;i<t.length;i++)a+=t[i]*r[i],s+=t[i]*t[i],h+=r[i]*r[i];return a/((s=Math.sqrt(s))*(h=Math.sqrt(h)))},ExtraMath.measureSimilarity=function(t,r){var a=new ExtraMath.DTM;a.add(t),a.add(r);var s=a.toArray();return ExtraMath.arrayCos(s[0],s[1])};";
}
// Cartesian product: https://en.wikipedia.org/wiki/Cartesian_product
@ -96,14 +96,25 @@ function clusteredCellsDensity(numbers, size, minDensity) {
return density >= minDensity;
}
function tileStartPos(index, size, cols) {
if (typeof size !== 'number') size = 130;
if (typeof cols !== 'number') cols = 4;
var i = index - 1; // convert 1-based -> 0-based
var col = i % cols;
var row = Math.floor(i / cols);
return { x: col * size, y: row * size };
}
exports.DTM = DTM;
exports.arrayCos = arrayCos;
exports.measureSimilarity = measureSimilarity;
exports.export_measureSimilarity = export_measureSimilarity;
exports.cartesianProduct = cartesianProduct;
exports.clusteredCellsDensity = clusteredCellsDensity;
exports.tileStartPos = tileStartPos;
exports.VERSIONINFO = "ExtraMath module (extramath.js) version 1.0.0";
exports.VERSIONINFO = "ExtraMath module (extramath.js) version 1.0.1";
exports.AUTHOR = "gnh1201@catswords.re.kr";
exports.global = global;
exports.require = global.require;