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| var bgcolors = ["#f7a7a7", "#d0f7a7", "#f7d6a7", "#a7e2f7", "#e7bafb", "#fbbadc", "#def5d1", "#f7f1a7", "#b5fdd6", "#fb9387"]; //put some nice background colors here for our boxes | |
| var crow = 0; // current row. not the bird :) | |
| var boxes = []; // the array that contains all box definitions | |
| lines.filter(e=>e) // filter out zero length lines | |
| .forEach(function(e) { | |
| o = e.map((x,i,a) => a.filter((y,j) => j<i).reduce((s,z) => s+Math.abs(z),1)); //get start columns of boxes | |
| e.forEach(function(x,i) { | |
| var f = boxes.filter(b => b.col===o[i] && b.opn); // are there open boxes at this column offset? | |
| if (x>0) { // +ve number means... | |
| if (f.length) { | |
| f.map(b => b.hgt++); // ...add one more row to open boxes at this column offset | |
| } else { // no open boxes exist at this column offset. start a new box | |
| n = {row: crow, col:o[i], wid:x, hgt: 1, clr: bgcolors[boxes.length%bgcolors.length], opn: true} | |
| boxes.push(n); | |
| } | |
| } else { | |
| f.map(b => ++b.hgt && --b.opn); // -ve number means: close open boxes at this column offset | |
| } | |
| }); | |
| crow++; // increment current row | |
| }); |
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