mirror of
https://github.com/Doodle3D/Doodle3D-Slicer.git
synced 2024-11-23 05:57:57 +01:00
532 lines
14 KiB
HTML
Executable File
532 lines
14 KiB
HTML
Executable File
<!DOCTYPE html>
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<html lang="en">
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<head>
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<title>three.js webgl - geometry - extrude shapes from geodata</title>
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<meta charset="utf-8">
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<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
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<style>
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body {
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font-family: Monospace;
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background-color: #f0f0f0;
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margin: 0px;
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overflow: hidden;
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}
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</style>
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</head>
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<body>
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<canvas id="debug" style="position:absolute; left:100px"></canvas>
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<script>
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'use strict';
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</script>
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<script type="text/javascript" src="../build/three.min.js"></script>
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<script src="js/libs/stats.min.js"></script>
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<script>
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// From d3-threeD.js
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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function d3threeD(exports) {
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const DEGS_TO_RADS = Math.PI / 180, UNIT_SIZE = 100;
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const DIGIT_0 = 48, DIGIT_9 = 57, COMMA = 44, SPACE = 32, PERIOD = 46, MINUS = 45;
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exports.transformSVGPath =
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function transformSVGPath(pathStr) {
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var path = new THREE.Shape();
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var idx = 1, len = pathStr.length, activeCmd,
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x = 0, y = 0, nx = 0, ny = 0, firstX = null, firstY = null,
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x1 = 0, x2 = 0, y1 = 0, y2 = 0,
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rx = 0, ry = 0, xar = 0, laf = 0, sf = 0, cx, cy;
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function eatNum() {
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var sidx, c, isFloat = false, s;
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// eat delims
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while (idx < len) {
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c = pathStr.charCodeAt(idx);
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if (c !== COMMA && c !== SPACE)
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break;
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idx++;
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}
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if (c === MINUS)
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sidx = idx++;
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else
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sidx = idx;
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// eat number
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while (idx < len) {
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c = pathStr.charCodeAt(idx);
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if (DIGIT_0 <= c && c <= DIGIT_9) {
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idx++;
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continue;
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}
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else if (c === PERIOD) {
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idx++;
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isFloat = true;
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continue;
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}
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s = pathStr.substring(sidx, idx);
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return isFloat ? parseFloat(s) : parseInt(s);
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}
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s = pathStr.substring(sidx);
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return isFloat ? parseFloat(s) : parseInt(s);
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}
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function nextIsNum() {
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var c;
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// do permanently eat any delims...
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while (idx < len) {
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c = pathStr.charCodeAt(idx);
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if (c !== COMMA && c !== SPACE)
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break;
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idx++;
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}
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c = pathStr.charCodeAt(idx);
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return (c === MINUS || (DIGIT_0 <= c && c <= DIGIT_9));
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}
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var canRepeat;
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activeCmd = pathStr[0];
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while (idx <= len) {
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canRepeat = true;
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switch (activeCmd) {
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// moveto commands, become lineto's if repeated
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case 'M':
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x = eatNum();
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y = eatNum();
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path.moveTo(x, y);
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activeCmd = 'L';
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firstX = x;
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firstY = y;
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break;
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case 'm':
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x += eatNum();
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y += eatNum();
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path.moveTo(x, y);
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activeCmd = 'l';
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firstX = x;
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firstY = y;
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break;
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case 'Z':
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case 'z':
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canRepeat = false;
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if (x !== firstX || y !== firstY)
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path.lineTo(firstX, firstY);
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break;
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// - lines!
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case 'L':
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case 'H':
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case 'V':
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nx = (activeCmd === 'V') ? x : eatNum();
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ny = (activeCmd === 'H') ? y : eatNum();
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path.lineTo(nx, ny);
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x = nx;
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y = ny;
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break;
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case 'l':
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case 'h':
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case 'v':
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nx = (activeCmd === 'v') ? x : (x + eatNum());
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ny = (activeCmd === 'h') ? y : (y + eatNum());
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path.lineTo(nx, ny);
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x = nx;
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y = ny;
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break;
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// - cubic bezier
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case 'C':
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x1 = eatNum(); y1 = eatNum();
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case 'S':
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if (activeCmd === 'S') {
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x1 = 2 * x - x2; y1 = 2 * y - y2;
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}
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x2 = eatNum();
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y2 = eatNum();
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nx = eatNum();
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ny = eatNum();
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path.bezierCurveTo(x1, y1, x2, y2, nx, ny);
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x = nx; y = ny;
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break;
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case 'c':
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x1 = x + eatNum();
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y1 = y + eatNum();
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case 's':
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if (activeCmd === 's') {
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x1 = 2 * x - x2;
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y1 = 2 * y - y2;
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}
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x2 = x + eatNum();
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y2 = y + eatNum();
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nx = x + eatNum();
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ny = y + eatNum();
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path.bezierCurveTo(x1, y1, x2, y2, nx, ny);
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x = nx; y = ny;
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break;
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// - quadratic bezier
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case 'Q':
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x1 = eatNum(); y1 = eatNum();
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case 'T':
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if (activeCmd === 'T') {
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x1 = 2 * x - x1;
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y1 = 2 * y - y1;
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}
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nx = eatNum();
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ny = eatNum();
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path.quadraticCurveTo(x1, y1, nx, ny);
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x = nx;
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y = ny;
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break;
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case 'q':
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x1 = x + eatNum();
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y1 = y + eatNum();
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case 't':
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if (activeCmd === 't') {
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x1 = 2 * x - x1;
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y1 = 2 * y - y1;
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}
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nx = x + eatNum();
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ny = y + eatNum();
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path.quadraticCurveTo(x1, y1, nx, ny);
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x = nx; y = ny;
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break;
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// - elliptical arc
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case 'A':
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rx = eatNum();
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ry = eatNum();
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xar = eatNum() * DEGS_TO_RADS;
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laf = eatNum();
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sf = eatNum();
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nx = eatNum();
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ny = eatNum();
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if (rx !== ry) {
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console.warn("Forcing elliptical arc to be a circular one :(",
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rx, ry);
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}
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// SVG implementation notes does all the math for us! woo!
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// http://www.w3.org/TR/SVG/implnote.html#ArcImplementationNotes
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// step1, using x1 as x1'
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x1 = Math.cos(xar) * (x - nx) / 2 + Math.sin(xar) * (y - ny) / 2;
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y1 = -Math.sin(xar) * (x - nx) / 2 + Math.cos(xar) * (y - ny) / 2;
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// step 2, using x2 as cx'
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var norm = Math.sqrt(
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(rx*rx * ry*ry - rx*rx * y1*y1 - ry*ry * x1*x1) /
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(rx*rx * y1*y1 + ry*ry * x1*x1));
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if (laf === sf)
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norm = -norm;
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x2 = norm * rx * y1 / ry;
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y2 = norm * -ry * x1 / rx;
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// step 3
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cx = Math.cos(xar) * x2 - Math.sin(xar) * y2 + (x + nx) / 2;
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cy = Math.sin(xar) * x2 + Math.cos(xar) * y2 + (y + ny) / 2;
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var u = new THREE.Vector2(1, 0),
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v = new THREE.Vector2((x1 - x2) / rx,
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(y1 - y2) / ry);
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var startAng = Math.acos(u.dot(v) / u.length() / v.length());
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if (u.x * v.y - u.y * v.x < 0)
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startAng = -startAng;
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// we can reuse 'v' from start angle as our 'u' for delta angle
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u.x = (-x1 - x2) / rx;
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u.y = (-y1 - y2) / ry;
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var deltaAng = Math.acos(v.dot(u) / v.length() / u.length());
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// This normalization ends up making our curves fail to triangulate...
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if (v.x * u.y - v.y * u.x < 0)
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deltaAng = -deltaAng;
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if (!sf && deltaAng > 0)
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deltaAng -= Math.PI * 2;
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if (sf && deltaAng < 0)
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deltaAng += Math.PI * 2;
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path.absarc(cx, cy, rx, startAng, startAng + deltaAng, sf);
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x = nx;
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y = ny;
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break;
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default:
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throw new Error("weird path command: " + activeCmd);
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}
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// just reissue the command
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if (canRepeat && nextIsNum())
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continue;
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activeCmd = pathStr[idx++];
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}
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return path;
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}
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}
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var $d3g = {};
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d3threeD($d3g);
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</script>
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<script>
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/// Part from g0v/twgeojson
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/// Graphic Engine and Geo Data Init Functions
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var addGeoObject = function( group, svgObject ) {
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var i,j, len, len1;
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var path, mesh, color, material, amount, simpleShapes, simpleShape, shape3d, x, toAdd, results = [];
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var thePaths = svgObject.paths;
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var theAmounts = svgObject.amounts;
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var theColors = svgObject.colors;
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var theCenter = svgObject.center;
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len = thePaths.length;
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for (i = 0; i < len; ++i) {
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path = $d3g.transformSVGPath( thePaths[i] );
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color = new THREE.Color( theColors[i] );
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material = new THREE.MeshLambertMaterial({
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color: color,
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emissive: color,
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});
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amount = theAmounts[i];
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simpleShapes = path.toShapes(true);
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len1 = simpleShapes.length;
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for (j = 0; j < len1; ++j) {
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simpleShape = simpleShapes[j];
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shape3d = simpleShape.extrude({
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amount: amount,
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bevelEnabled: false
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});
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mesh = new THREE.Mesh(shape3d, material);
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mesh.rotation.x = Math.PI;
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mesh.translateZ( - amount - 1);
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mesh.translateX( - theCenter.x);
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mesh.translateY( - theCenter.y);
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group.add(mesh);
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}
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}
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};
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var init3d = function(){
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/// Global : renderer
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renderer = new THREE.WebGLRenderer( { antialias: true } );
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renderer.setClearColor( 0xb0b0b0 );
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renderer.setPixelRatio( window.devicePixelRatio );
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renderer.setSize( window.innerWidth, window.innerHeight );
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/// Global : scene
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scene = new THREE.Scene();
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/// Global : camera
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camera = new THREE.PerspectiveCamera( 50, window.innerWidth / window.innerHeight, 1, 1000 );
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camera.position.set( 0, 0, 200 );
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/// Global : group
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group = new THREE.Group();
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scene.add( group );
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/// direct light
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var light = new THREE.DirectionalLight( 0x404040 );
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light.position.set( 0.75, 0.75, 1.0 ).normalize();
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scene.add( light );
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/// ambient light
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var ambientLight = new THREE.AmbientLight(0x404040);
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scene.add( ambientLight );
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/// backgroup grids
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var helper = new THREE.GridHelper( 80, 10 );
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helper.rotation.x = Math.PI / 2;
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group.add( helper );
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var obj = initSVGObject();
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addGeoObject( group, obj );
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};
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var initSVGObject = function() {
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var obj = {};
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/// The geo data from Taipei City, Keelung City, Taipei County in SVG form
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obj.paths = [
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/// Taipei City
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"M366.2182,108.9780 L368.0329,110.3682 L367.5922,112.4411 L369.9258,116.0311 L368.9827,117.3543 " +
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"L371.5686,119.8491 L370.5599,121.7206 L372.9314,124.8009 L368.8889,126.7603 L369.2695,130.7622 " +
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"L366.1499,130.3388 L363.4698,128.1161 L362.9256,125.6018 L360.8153,126.4025 L360.2968,124.3588 " +
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"L361.9519,121.1623 L360.4475,118.7162 L358.1163,117.8678 L358.7094,115.7577 L361.6243,112.4576 Z",
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/// Keelung City
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"M380.2689,113.3850 L383.5604,114.2370 L383.7404,114.2386 L385.4082,115.6247 L384.9725,117.4631 " +
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"L381.6681,117.9439 L383.0209,121.0914 L379.4649,122.7061 L373.4987,118.8487 L372.0980,114.7589 " +
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"L377.9716,112.0707 Z",
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/// Taipei County
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"M359.4486,155.6690 L357.0422,152.7420 L355.1688,148.0173 L357.1186,145.8045 L354.1323,141.2242 " +
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"L351.1807,141.6609 L348.9387,140.5372 L349.5415,137.8396 L347.5174,136.1694 L347.6299,129.2327 " +
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"L351.4192,128.8067 L354.2518,125.3113 L352.5805,121.8038 L349.3190,120.9429 L344.3277,116.7676 " +
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"L350.9772,115.1221 L354.5759,112.5371 L354.5667,110.6949 L357.4098,105.7489 L362.3963,101.8443 " +
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"L364.4415,101.0819 L364.5314,101.0828 L364.6209,101.1230 L364.7698,101.2029 L368.1221,101.5115 " +
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"L371.7216,104.1338 L372.2958,106.7261 L375.5949,109.6971 L377.0415,108.8875 L377.0737,108.6526 " +
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"L377.4037,108.6165 L376.8840,109.7091 L376.7323,109.9037 L377.9416,112.0705 L371.7970,114.8736 " +
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"L374.0935,119.4031 L380.7848,122.7963 L382.6529,121.9897 L381.5792,117.8256 L385.0339,117.3069 " +
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"L385.4082,115.6247 L388.7014,116.3969 L389.8697,116.6024 L390.0206,116.4860 L391.0396,116.6118 " +
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"L394.6665,116.9929 L394.4694,119.2255 L394.3172,119.4987 L395.3792,121.8977 L395.2728,124.0526 " +
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"L397.2123,125.6350 L401.1709,126.2516 L401.2612,126.2130 L401.4086,126.6060 L400.1992,127.7733 " +
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"L399.7769,128.0446 L399.6247,128.3179 L398.1779,129.0521 L394.2418,129.2969 L388.7324,130.9385 " +
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"L389.2782,134.0003 L383.7237,137.0111 L381.7445,139.9336 L379.7001,139.9546 L376.1539,143.0580 " +
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"L371.3022,144.1094 L368.6009,146.5914 L368.7361,151.1399 L363.6153,154.4980 " +
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/// Taipei County hole.
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"M363.4600,128.3904 L366.6300,130.3829 L369.3732,129.3913 L369.5603,125.6695 L374.3989,125.1677 " +
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"L370.8412,123.6440 L371.0684,118.8252 L369.0431,117.3157 L369.6882,115.7936 L367.8578,112.8749 " +
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"L368.1217,110.4867 L366.5152,109.2554 L361.9554,112.3435 L358.1163,117.8678 L361.7218,120.2192 " +
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"L360.7261,126.3232 L362.8064,125.5221 Z"];
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obj.amounts = [ 19, 20, 21 ];
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obj.colors = [ 0xC07000, 0xC08000, 0xC0A000 ];
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obj.center = { x:365, y:125 };
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return obj;
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};
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</script>
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<script>
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/// Events from extrude shapes example
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function onWindowResize() {
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windowHalfX = window.innerWidth / 2;
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windowHalfY = window.innerHeight / 2;
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camera.aspect = window.innerWidth / window.innerHeight;
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camera.updateProjectionMatrix();
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renderer.setSize( window.innerWidth, window.innerHeight );
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};
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function onDocumentMouseDown( event ) {
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event.preventDefault();
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document.addEventListener( 'mousemove', onDocumentMouseMove, false );
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document.addEventListener( 'mouseup', onDocumentMouseUp, false );
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document.addEventListener( 'mouseout', onDocumentMouseOut, false );
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mouseXOnMouseDown = event.clientX - windowHalfX;
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targetRotationOnMouseDown = targetRotation;
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};
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function onDocumentMouseMove( event ) {
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mouseX = event.clientX - windowHalfX;
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targetRotation = targetRotationOnMouseDown + ( mouseX - mouseXOnMouseDown ) * 0.02;
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};
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function onDocumentMouseUp( event ) {
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document.removeEventListener( 'mousemove', onDocumentMouseMove, false );
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document.removeEventListener( 'mouseup', onDocumentMouseUp, false );
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document.removeEventListener( 'mouseout', onDocumentMouseOut, false );
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};
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function onDocumentMouseOut( event ) {
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document.removeEventListener( 'mousemove', onDocumentMouseMove, false );
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document.removeEventListener( 'mouseup', onDocumentMouseUp, false );
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document.removeEventListener( 'mouseout', onDocumentMouseOut, false );
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};
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function onDocumentTouchStart( event ) {
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if ( event.touches.length == 1 ) {
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event.preventDefault();
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mouseXOnMouseDown = event.touches[ 0 ].pageX - windowHalfX;
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targetRotationOnMouseDown = targetRotation;
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}
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};
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function onDocumentTouchMove( event ) {
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if ( event.touches.length == 1 ) {
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event.preventDefault();
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mouseX = event.touches[ 0 ].pageX - windowHalfX;
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targetRotation = targetRotationOnMouseDown + ( mouseX - mouseXOnMouseDown ) * 0.05;
|
|
}
|
|
};
|
|
|
|
function animate() {
|
|
|
|
/// compatibility : http://caniuse.com/requestanimationframe
|
|
requestAnimationFrame( animate );
|
|
|
|
render();
|
|
stats.update();
|
|
};
|
|
|
|
function render() {
|
|
|
|
group.rotation.y += ( targetRotation - group.rotation.y ) * 0.05;
|
|
renderer.render( scene, camera );
|
|
};
|
|
</script>
|
|
|
|
|
|
|
|
<script>
|
|
/// Main
|
|
|
|
var renderer, stats;
|
|
var scene, camera, group;
|
|
|
|
var targetRotation = 0;
|
|
var targetRotationOnMouseDown = 0;
|
|
|
|
var mouseX = 0;
|
|
var mouseXOnMouseDown = 0;
|
|
|
|
var windowHalfX = window.innerWidth / 2;
|
|
var windowHalfY = window.innerHeight / 2;
|
|
|
|
var container = document.createElement( 'div' );
|
|
document.body.appendChild( container );
|
|
|
|
var info = document.createElement( 'div' );
|
|
info.style.position = 'absolute';
|
|
info.style.top = '10px';
|
|
info.style.width = '100%';
|
|
info.style.textAlign = 'center';
|
|
info.innerHTML = 'Shapes Extrusion via Geo Data<br/>Drag to spin';
|
|
container.appendChild( info );
|
|
|
|
init3d();
|
|
|
|
container.appendChild( renderer.domElement );
|
|
|
|
stats = new Stats();
|
|
stats.domElement.style.position = 'absolute';
|
|
stats.domElement.style.top = '0px';
|
|
container.appendChild( stats.domElement );
|
|
|
|
document.addEventListener( 'mousedown', onDocumentMouseDown, false );
|
|
document.addEventListener( 'touchstart', onDocumentTouchStart, false );
|
|
document.addEventListener( 'touchmove', onDocumentTouchMove, false );
|
|
window.addEventListener( 'resize', onWindowResize, false );
|
|
|
|
animate();
|
|
</script>
|
|
|
|
|
|
|
|
</body>
|
|
</html>
|