1008 lines
34 KiB
JavaScript
1008 lines
34 KiB
JavaScript
/**
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* @license
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* Cesium - https://github.com/CesiumGS/cesium
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* Version 1.117
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*
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* Copyright 2011-2022 Cesium Contributors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* Columbus View (Pat. Pend.)
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*
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* Portions licensed separately.
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* See https://github.com/CesiumGS/cesium/blob/main/LICENSE.md for full licensing details.
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*/
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import {
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EllipsoidRhumbLine_default
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} from "./chunk-CYAJYEKW.js";
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import {
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GeometryAttribute_default,
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Geometry_default,
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PrimitiveType_default
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} from "./chunk-34DGOKCO.js";
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import {
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ComponentDatatype_default
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} from "./chunk-TMMOULW3.js";
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import {
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Cartesian2_default,
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Cartesian3_default,
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Cartographic_default,
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Ellipsoid_default
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} from "./chunk-C5CE4OG6.js";
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import {
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Math_default
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} from "./chunk-4PHPQRSH.js";
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import {
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WebGLConstants_default
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} from "./chunk-PEABJLCK.js";
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import {
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defaultValue_default
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} from "./chunk-UCPPWV64.js";
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import {
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Check_default
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} from "./chunk-U4IMCOF5.js";
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import {
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__commonJS,
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__toESM,
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defined_default
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} from "./chunk-BDUJXBVF.js";
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// node_modules/earcut/src/earcut.js
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var require_earcut = __commonJS({
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"node_modules/earcut/src/earcut.js"(exports, module) {
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"use strict";
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module.exports = earcut2;
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module.exports.default = earcut2;
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function earcut2(data, holeIndices, dim) {
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dim = dim || 2;
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var hasHoles = holeIndices && holeIndices.length, outerLen = hasHoles ? holeIndices[0] * dim : data.length, outerNode = linkedList(data, 0, outerLen, dim, true), triangles = [];
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if (!outerNode || outerNode.next === outerNode.prev)
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return triangles;
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var minX, minY, maxX, maxY, x, y, invSize;
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if (hasHoles)
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outerNode = eliminateHoles(data, holeIndices, outerNode, dim);
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if (data.length > 80 * dim) {
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minX = maxX = data[0];
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minY = maxY = data[1];
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for (var i = dim; i < outerLen; i += dim) {
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x = data[i];
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y = data[i + 1];
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if (x < minX)
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minX = x;
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if (y < minY)
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minY = y;
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if (x > maxX)
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maxX = x;
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if (y > maxY)
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maxY = y;
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}
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invSize = Math.max(maxX - minX, maxY - minY);
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invSize = invSize !== 0 ? 32767 / invSize : 0;
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}
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earcutLinked(outerNode, triangles, dim, minX, minY, invSize, 0);
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return triangles;
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}
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function linkedList(data, start, end, dim, clockwise) {
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var i, last;
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if (clockwise === signedArea(data, start, end, dim) > 0) {
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for (i = start; i < end; i += dim)
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last = insertNode(i, data[i], data[i + 1], last);
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} else {
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for (i = end - dim; i >= start; i -= dim)
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last = insertNode(i, data[i], data[i + 1], last);
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}
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if (last && equals(last, last.next)) {
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removeNode(last);
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last = last.next;
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}
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return last;
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}
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function filterPoints(start, end) {
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if (!start)
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return start;
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if (!end)
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end = start;
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var p = start, again;
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do {
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again = false;
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if (!p.steiner && (equals(p, p.next) || area(p.prev, p, p.next) === 0)) {
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removeNode(p);
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p = end = p.prev;
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if (p === p.next)
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break;
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again = true;
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} else {
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p = p.next;
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}
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} while (again || p !== end);
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return end;
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}
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function earcutLinked(ear, triangles, dim, minX, minY, invSize, pass) {
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if (!ear)
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return;
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if (!pass && invSize)
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indexCurve(ear, minX, minY, invSize);
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var stop = ear, prev, next;
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while (ear.prev !== ear.next) {
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prev = ear.prev;
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next = ear.next;
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if (invSize ? isEarHashed(ear, minX, minY, invSize) : isEar(ear)) {
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triangles.push(prev.i / dim | 0);
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triangles.push(ear.i / dim | 0);
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triangles.push(next.i / dim | 0);
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removeNode(ear);
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ear = next.next;
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stop = next.next;
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continue;
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}
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ear = next;
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if (ear === stop) {
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if (!pass) {
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earcutLinked(filterPoints(ear), triangles, dim, minX, minY, invSize, 1);
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} else if (pass === 1) {
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ear = cureLocalIntersections(filterPoints(ear), triangles, dim);
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earcutLinked(ear, triangles, dim, minX, minY, invSize, 2);
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} else if (pass === 2) {
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splitEarcut(ear, triangles, dim, minX, minY, invSize);
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}
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break;
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}
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}
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}
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function isEar(ear) {
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var a = ear.prev, b = ear, c = ear.next;
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if (area(a, b, c) >= 0)
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return false;
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var ax = a.x, bx = b.x, cx = c.x, ay = a.y, by = b.y, cy = c.y;
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var x0 = ax < bx ? ax < cx ? ax : cx : bx < cx ? bx : cx, y0 = ay < by ? ay < cy ? ay : cy : by < cy ? by : cy, x1 = ax > bx ? ax > cx ? ax : cx : bx > cx ? bx : cx, y1 = ay > by ? ay > cy ? ay : cy : by > cy ? by : cy;
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var p = c.next;
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while (p !== a) {
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if (p.x >= x0 && p.x <= x1 && p.y >= y0 && p.y <= y1 && pointInTriangle(ax, ay, bx, by, cx, cy, p.x, p.y) && area(p.prev, p, p.next) >= 0)
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return false;
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p = p.next;
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}
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return true;
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}
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function isEarHashed(ear, minX, minY, invSize) {
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var a = ear.prev, b = ear, c = ear.next;
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if (area(a, b, c) >= 0)
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return false;
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var ax = a.x, bx = b.x, cx = c.x, ay = a.y, by = b.y, cy = c.y;
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var x0 = ax < bx ? ax < cx ? ax : cx : bx < cx ? bx : cx, y0 = ay < by ? ay < cy ? ay : cy : by < cy ? by : cy, x1 = ax > bx ? ax > cx ? ax : cx : bx > cx ? bx : cx, y1 = ay > by ? ay > cy ? ay : cy : by > cy ? by : cy;
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var minZ = zOrder(x0, y0, minX, minY, invSize), maxZ = zOrder(x1, y1, minX, minY, invSize);
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var p = ear.prevZ, n = ear.nextZ;
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while (p && p.z >= minZ && n && n.z <= maxZ) {
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if (p.x >= x0 && p.x <= x1 && p.y >= y0 && p.y <= y1 && p !== a && p !== c && pointInTriangle(ax, ay, bx, by, cx, cy, p.x, p.y) && area(p.prev, p, p.next) >= 0)
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return false;
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p = p.prevZ;
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if (n.x >= x0 && n.x <= x1 && n.y >= y0 && n.y <= y1 && n !== a && n !== c && pointInTriangle(ax, ay, bx, by, cx, cy, n.x, n.y) && area(n.prev, n, n.next) >= 0)
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return false;
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n = n.nextZ;
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}
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while (p && p.z >= minZ) {
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if (p.x >= x0 && p.x <= x1 && p.y >= y0 && p.y <= y1 && p !== a && p !== c && pointInTriangle(ax, ay, bx, by, cx, cy, p.x, p.y) && area(p.prev, p, p.next) >= 0)
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return false;
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p = p.prevZ;
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}
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while (n && n.z <= maxZ) {
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if (n.x >= x0 && n.x <= x1 && n.y >= y0 && n.y <= y1 && n !== a && n !== c && pointInTriangle(ax, ay, bx, by, cx, cy, n.x, n.y) && area(n.prev, n, n.next) >= 0)
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return false;
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n = n.nextZ;
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}
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return true;
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}
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function cureLocalIntersections(start, triangles, dim) {
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var p = start;
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do {
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var a = p.prev, b = p.next.next;
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if (!equals(a, b) && intersects(a, p, p.next, b) && locallyInside(a, b) && locallyInside(b, a)) {
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triangles.push(a.i / dim | 0);
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triangles.push(p.i / dim | 0);
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triangles.push(b.i / dim | 0);
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removeNode(p);
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removeNode(p.next);
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p = start = b;
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}
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p = p.next;
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} while (p !== start);
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return filterPoints(p);
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}
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function splitEarcut(start, triangles, dim, minX, minY, invSize) {
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var a = start;
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do {
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var b = a.next.next;
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while (b !== a.prev) {
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if (a.i !== b.i && isValidDiagonal(a, b)) {
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var c = splitPolygon(a, b);
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a = filterPoints(a, a.next);
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c = filterPoints(c, c.next);
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earcutLinked(a, triangles, dim, minX, minY, invSize, 0);
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earcutLinked(c, triangles, dim, minX, minY, invSize, 0);
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return;
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}
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b = b.next;
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}
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a = a.next;
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} while (a !== start);
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}
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function eliminateHoles(data, holeIndices, outerNode, dim) {
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var queue = [], i, len, start, end, list;
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for (i = 0, len = holeIndices.length; i < len; i++) {
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start = holeIndices[i] * dim;
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end = i < len - 1 ? holeIndices[i + 1] * dim : data.length;
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list = linkedList(data, start, end, dim, false);
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if (list === list.next)
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list.steiner = true;
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queue.push(getLeftmost(list));
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}
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queue.sort(compareX);
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for (i = 0; i < queue.length; i++) {
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outerNode = eliminateHole(queue[i], outerNode);
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}
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return outerNode;
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}
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function compareX(a, b) {
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return a.x - b.x;
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}
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function eliminateHole(hole, outerNode) {
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var bridge = findHoleBridge(hole, outerNode);
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if (!bridge) {
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return outerNode;
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}
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var bridgeReverse = splitPolygon(bridge, hole);
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filterPoints(bridgeReverse, bridgeReverse.next);
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return filterPoints(bridge, bridge.next);
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}
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function findHoleBridge(hole, outerNode) {
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var p = outerNode, hx = hole.x, hy = hole.y, qx = -Infinity, m;
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do {
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if (hy <= p.y && hy >= p.next.y && p.next.y !== p.y) {
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var x = p.x + (hy - p.y) * (p.next.x - p.x) / (p.next.y - p.y);
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if (x <= hx && x > qx) {
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qx = x;
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m = p.x < p.next.x ? p : p.next;
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if (x === hx)
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return m;
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}
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}
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p = p.next;
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} while (p !== outerNode);
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if (!m)
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return null;
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var stop = m, mx = m.x, my = m.y, tanMin = Infinity, tan;
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p = m;
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do {
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if (hx >= p.x && p.x >= mx && hx !== p.x && pointInTriangle(hy < my ? hx : qx, hy, mx, my, hy < my ? qx : hx, hy, p.x, p.y)) {
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tan = Math.abs(hy - p.y) / (hx - p.x);
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if (locallyInside(p, hole) && (tan < tanMin || tan === tanMin && (p.x > m.x || p.x === m.x && sectorContainsSector(m, p)))) {
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m = p;
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tanMin = tan;
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}
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}
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p = p.next;
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} while (p !== stop);
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return m;
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}
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function sectorContainsSector(m, p) {
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return area(m.prev, m, p.prev) < 0 && area(p.next, m, m.next) < 0;
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}
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function indexCurve(start, minX, minY, invSize) {
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var p = start;
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do {
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if (p.z === 0)
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p.z = zOrder(p.x, p.y, minX, minY, invSize);
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p.prevZ = p.prev;
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p.nextZ = p.next;
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p = p.next;
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} while (p !== start);
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p.prevZ.nextZ = null;
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p.prevZ = null;
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sortLinked(p);
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}
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function sortLinked(list) {
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var i, p, q, e, tail, numMerges, pSize, qSize, inSize = 1;
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do {
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p = list;
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list = null;
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tail = null;
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numMerges = 0;
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while (p) {
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numMerges++;
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q = p;
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pSize = 0;
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for (i = 0; i < inSize; i++) {
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pSize++;
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q = q.nextZ;
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if (!q)
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break;
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}
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qSize = inSize;
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while (pSize > 0 || qSize > 0 && q) {
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if (pSize !== 0 && (qSize === 0 || !q || p.z <= q.z)) {
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e = p;
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p = p.nextZ;
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pSize--;
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} else {
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e = q;
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q = q.nextZ;
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qSize--;
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}
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if (tail)
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tail.nextZ = e;
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else
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list = e;
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e.prevZ = tail;
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tail = e;
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}
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p = q;
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}
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tail.nextZ = null;
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inSize *= 2;
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} while (numMerges > 1);
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return list;
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}
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function zOrder(x, y, minX, minY, invSize) {
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x = (x - minX) * invSize | 0;
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y = (y - minY) * invSize | 0;
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x = (x | x << 8) & 16711935;
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x = (x | x << 4) & 252645135;
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x = (x | x << 2) & 858993459;
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x = (x | x << 1) & 1431655765;
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y = (y | y << 8) & 16711935;
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y = (y | y << 4) & 252645135;
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y = (y | y << 2) & 858993459;
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y = (y | y << 1) & 1431655765;
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return x | y << 1;
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}
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function getLeftmost(start) {
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var p = start, leftmost = start;
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do {
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if (p.x < leftmost.x || p.x === leftmost.x && p.y < leftmost.y)
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leftmost = p;
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p = p.next;
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} while (p !== start);
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return leftmost;
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}
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function pointInTriangle(ax, ay, bx, by, cx, cy, px, py) {
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return (cx - px) * (ay - py) >= (ax - px) * (cy - py) && (ax - px) * (by - py) >= (bx - px) * (ay - py) && (bx - px) * (cy - py) >= (cx - px) * (by - py);
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}
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function isValidDiagonal(a, b) {
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return a.next.i !== b.i && a.prev.i !== b.i && !intersectsPolygon(a, b) && // dones't intersect other edges
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(locallyInside(a, b) && locallyInside(b, a) && middleInside(a, b) && // locally visible
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(area(a.prev, a, b.prev) || area(a, b.prev, b)) || // does not create opposite-facing sectors
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equals(a, b) && area(a.prev, a, a.next) > 0 && area(b.prev, b, b.next) > 0);
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}
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function area(p, q, r) {
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return (q.y - p.y) * (r.x - q.x) - (q.x - p.x) * (r.y - q.y);
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}
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function equals(p1, p2) {
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return p1.x === p2.x && p1.y === p2.y;
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}
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function intersects(p1, q1, p2, q2) {
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var o1 = sign(area(p1, q1, p2));
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var o2 = sign(area(p1, q1, q2));
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var o3 = sign(area(p2, q2, p1));
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var o4 = sign(area(p2, q2, q1));
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if (o1 !== o2 && o3 !== o4)
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return true;
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if (o1 === 0 && onSegment(p1, p2, q1))
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return true;
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if (o2 === 0 && onSegment(p1, q2, q1))
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return true;
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if (o3 === 0 && onSegment(p2, p1, q2))
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return true;
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if (o4 === 0 && onSegment(p2, q1, q2))
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return true;
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return false;
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}
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function onSegment(p, q, r) {
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return q.x <= Math.max(p.x, r.x) && q.x >= Math.min(p.x, r.x) && q.y <= Math.max(p.y, r.y) && q.y >= Math.min(p.y, r.y);
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}
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function sign(num) {
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return num > 0 ? 1 : num < 0 ? -1 : 0;
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}
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function intersectsPolygon(a, b) {
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var p = a;
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do {
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if (p.i !== a.i && p.next.i !== a.i && p.i !== b.i && p.next.i !== b.i && intersects(p, p.next, a, b))
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return true;
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p = p.next;
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} while (p !== a);
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return false;
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}
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function locallyInside(a, b) {
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return area(a.prev, a, a.next) < 0 ? area(a, b, a.next) >= 0 && area(a, a.prev, b) >= 0 : area(a, b, a.prev) < 0 || area(a, a.next, b) < 0;
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}
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function middleInside(a, b) {
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var p = a, inside = false, px = (a.x + b.x) / 2, py = (a.y + b.y) / 2;
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do {
|
|
if (p.y > py !== p.next.y > py && p.next.y !== p.y && px < (p.next.x - p.x) * (py - p.y) / (p.next.y - p.y) + p.x)
|
|
inside = !inside;
|
|
p = p.next;
|
|
} while (p !== a);
|
|
return inside;
|
|
}
|
|
function splitPolygon(a, b) {
|
|
var a2 = new Node(a.i, a.x, a.y), b2 = new Node(b.i, b.x, b.y), an = a.next, bp = b.prev;
|
|
a.next = b;
|
|
b.prev = a;
|
|
a2.next = an;
|
|
an.prev = a2;
|
|
b2.next = a2;
|
|
a2.prev = b2;
|
|
bp.next = b2;
|
|
b2.prev = bp;
|
|
return b2;
|
|
}
|
|
function insertNode(i, x, y, last) {
|
|
var p = new Node(i, x, y);
|
|
if (!last) {
|
|
p.prev = p;
|
|
p.next = p;
|
|
} else {
|
|
p.next = last.next;
|
|
p.prev = last;
|
|
last.next.prev = p;
|
|
last.next = p;
|
|
}
|
|
return p;
|
|
}
|
|
function removeNode(p) {
|
|
p.next.prev = p.prev;
|
|
p.prev.next = p.next;
|
|
if (p.prevZ)
|
|
p.prevZ.nextZ = p.nextZ;
|
|
if (p.nextZ)
|
|
p.nextZ.prevZ = p.prevZ;
|
|
}
|
|
function Node(i, x, y) {
|
|
this.i = i;
|
|
this.x = x;
|
|
this.y = y;
|
|
this.prev = null;
|
|
this.next = null;
|
|
this.z = 0;
|
|
this.prevZ = null;
|
|
this.nextZ = null;
|
|
this.steiner = false;
|
|
}
|
|
earcut2.deviation = function(data, holeIndices, dim, triangles) {
|
|
var hasHoles = holeIndices && holeIndices.length;
|
|
var outerLen = hasHoles ? holeIndices[0] * dim : data.length;
|
|
var polygonArea = Math.abs(signedArea(data, 0, outerLen, dim));
|
|
if (hasHoles) {
|
|
for (var i = 0, len = holeIndices.length; i < len; i++) {
|
|
var start = holeIndices[i] * dim;
|
|
var end = i < len - 1 ? holeIndices[i + 1] * dim : data.length;
|
|
polygonArea -= Math.abs(signedArea(data, start, end, dim));
|
|
}
|
|
}
|
|
var trianglesArea = 0;
|
|
for (i = 0; i < triangles.length; i += 3) {
|
|
var a = triangles[i] * dim;
|
|
var b = triangles[i + 1] * dim;
|
|
var c = triangles[i + 2] * dim;
|
|
trianglesArea += Math.abs(
|
|
(data[a] - data[c]) * (data[b + 1] - data[a + 1]) - (data[a] - data[b]) * (data[c + 1] - data[a + 1])
|
|
);
|
|
}
|
|
return polygonArea === 0 && trianglesArea === 0 ? 0 : Math.abs((trianglesArea - polygonArea) / polygonArea);
|
|
};
|
|
function signedArea(data, start, end, dim) {
|
|
var sum = 0;
|
|
for (var i = start, j = end - dim; i < end; i += dim) {
|
|
sum += (data[j] - data[i]) * (data[i + 1] + data[j + 1]);
|
|
j = i;
|
|
}
|
|
return sum;
|
|
}
|
|
earcut2.flatten = function(data) {
|
|
var dim = data[0][0].length, result = { vertices: [], holes: [], dimensions: dim }, holeIndex = 0;
|
|
for (var i = 0; i < data.length; i++) {
|
|
for (var j = 0; j < data[i].length; j++) {
|
|
for (var d = 0; d < dim; d++)
|
|
result.vertices.push(data[i][j][d]);
|
|
}
|
|
if (i > 0) {
|
|
holeIndex += data[i - 1].length;
|
|
result.holes.push(holeIndex);
|
|
}
|
|
}
|
|
return result;
|
|
};
|
|
}
|
|
});
|
|
|
|
// packages/engine/Source/Core/WindingOrder.js
|
|
var WindingOrder = {
|
|
/**
|
|
* Vertices are in clockwise order.
|
|
*
|
|
* @type {number}
|
|
* @constant
|
|
*/
|
|
CLOCKWISE: WebGLConstants_default.CW,
|
|
/**
|
|
* Vertices are in counter-clockwise order.
|
|
*
|
|
* @type {number}
|
|
* @constant
|
|
*/
|
|
COUNTER_CLOCKWISE: WebGLConstants_default.CCW
|
|
};
|
|
WindingOrder.validate = function(windingOrder) {
|
|
return windingOrder === WindingOrder.CLOCKWISE || windingOrder === WindingOrder.COUNTER_CLOCKWISE;
|
|
};
|
|
var WindingOrder_default = Object.freeze(WindingOrder);
|
|
|
|
// packages/engine/Source/Core/PolygonPipeline.js
|
|
var import_earcut = __toESM(require_earcut(), 1);
|
|
var scaleToGeodeticHeightN = new Cartesian3_default();
|
|
var scaleToGeodeticHeightP = new Cartesian3_default();
|
|
var PolygonPipeline = {};
|
|
PolygonPipeline.computeArea2D = function(positions) {
|
|
Check_default.defined("positions", positions);
|
|
Check_default.typeOf.number.greaterThanOrEquals(
|
|
"positions.length",
|
|
positions.length,
|
|
3
|
|
);
|
|
const length = positions.length;
|
|
let area = 0;
|
|
for (let i0 = length - 1, i1 = 0; i1 < length; i0 = i1++) {
|
|
const v0 = positions[i0];
|
|
const v1 = positions[i1];
|
|
area += v0.x * v1.y - v1.x * v0.y;
|
|
}
|
|
return area * 0.5;
|
|
};
|
|
PolygonPipeline.computeWindingOrder2D = function(positions) {
|
|
const area = PolygonPipeline.computeArea2D(positions);
|
|
return area > 0 ? WindingOrder_default.COUNTER_CLOCKWISE : WindingOrder_default.CLOCKWISE;
|
|
};
|
|
PolygonPipeline.triangulate = function(positions, holes) {
|
|
Check_default.defined("positions", positions);
|
|
const flattenedPositions = Cartesian2_default.packArray(positions);
|
|
return (0, import_earcut.default)(flattenedPositions, holes, 2);
|
|
};
|
|
var subdivisionV0Scratch = new Cartesian3_default();
|
|
var subdivisionV1Scratch = new Cartesian3_default();
|
|
var subdivisionV2Scratch = new Cartesian3_default();
|
|
var subdivisionS0Scratch = new Cartesian3_default();
|
|
var subdivisionS1Scratch = new Cartesian3_default();
|
|
var subdivisionS2Scratch = new Cartesian3_default();
|
|
var subdivisionMidScratch = new Cartesian3_default();
|
|
var subdivisionT0Scratch = new Cartesian2_default();
|
|
var subdivisionT1Scratch = new Cartesian2_default();
|
|
var subdivisionT2Scratch = new Cartesian2_default();
|
|
var subdivisionTexcoordMidScratch = new Cartesian2_default();
|
|
PolygonPipeline.computeSubdivision = function(ellipsoid, positions, indices, texcoords, granularity) {
|
|
granularity = defaultValue_default(granularity, Math_default.RADIANS_PER_DEGREE);
|
|
const hasTexcoords = defined_default(texcoords);
|
|
Check_default.typeOf.object("ellipsoid", ellipsoid);
|
|
Check_default.defined("positions", positions);
|
|
Check_default.defined("indices", indices);
|
|
Check_default.typeOf.number.greaterThanOrEquals("indices.length", indices.length, 3);
|
|
Check_default.typeOf.number.equals("indices.length % 3", "0", indices.length % 3, 0);
|
|
Check_default.typeOf.number.greaterThan("granularity", granularity, 0);
|
|
const triangles = indices.slice(0);
|
|
let i;
|
|
const length = positions.length;
|
|
const subdividedPositions = new Array(length * 3);
|
|
const subdividedTexcoords = new Array(length * 2);
|
|
let q = 0;
|
|
let p = 0;
|
|
for (i = 0; i < length; i++) {
|
|
const item = positions[i];
|
|
subdividedPositions[q++] = item.x;
|
|
subdividedPositions[q++] = item.y;
|
|
subdividedPositions[q++] = item.z;
|
|
if (hasTexcoords) {
|
|
const texcoordItem = texcoords[i];
|
|
subdividedTexcoords[p++] = texcoordItem.x;
|
|
subdividedTexcoords[p++] = texcoordItem.y;
|
|
}
|
|
}
|
|
const subdividedIndices = [];
|
|
const edges = {};
|
|
const radius = ellipsoid.maximumRadius;
|
|
const minDistance = Math_default.chordLength(granularity, radius);
|
|
const minDistanceSqrd = minDistance * minDistance;
|
|
while (triangles.length > 0) {
|
|
const i2 = triangles.pop();
|
|
const i1 = triangles.pop();
|
|
const i0 = triangles.pop();
|
|
const v0 = Cartesian3_default.fromArray(
|
|
subdividedPositions,
|
|
i0 * 3,
|
|
subdivisionV0Scratch
|
|
);
|
|
const v1 = Cartesian3_default.fromArray(
|
|
subdividedPositions,
|
|
i1 * 3,
|
|
subdivisionV1Scratch
|
|
);
|
|
const v2 = Cartesian3_default.fromArray(
|
|
subdividedPositions,
|
|
i2 * 3,
|
|
subdivisionV2Scratch
|
|
);
|
|
let t0, t1, t2;
|
|
if (hasTexcoords) {
|
|
t0 = Cartesian2_default.fromArray(
|
|
subdividedTexcoords,
|
|
i0 * 2,
|
|
subdivisionT0Scratch
|
|
);
|
|
t1 = Cartesian2_default.fromArray(
|
|
subdividedTexcoords,
|
|
i1 * 2,
|
|
subdivisionT1Scratch
|
|
);
|
|
t2 = Cartesian2_default.fromArray(
|
|
subdividedTexcoords,
|
|
i2 * 2,
|
|
subdivisionT2Scratch
|
|
);
|
|
}
|
|
const s0 = Cartesian3_default.multiplyByScalar(
|
|
Cartesian3_default.normalize(v0, subdivisionS0Scratch),
|
|
radius,
|
|
subdivisionS0Scratch
|
|
);
|
|
const s1 = Cartesian3_default.multiplyByScalar(
|
|
Cartesian3_default.normalize(v1, subdivisionS1Scratch),
|
|
radius,
|
|
subdivisionS1Scratch
|
|
);
|
|
const s2 = Cartesian3_default.multiplyByScalar(
|
|
Cartesian3_default.normalize(v2, subdivisionS2Scratch),
|
|
radius,
|
|
subdivisionS2Scratch
|
|
);
|
|
const g0 = Cartesian3_default.magnitudeSquared(
|
|
Cartesian3_default.subtract(s0, s1, subdivisionMidScratch)
|
|
);
|
|
const g1 = Cartesian3_default.magnitudeSquared(
|
|
Cartesian3_default.subtract(s1, s2, subdivisionMidScratch)
|
|
);
|
|
const g2 = Cartesian3_default.magnitudeSquared(
|
|
Cartesian3_default.subtract(s2, s0, subdivisionMidScratch)
|
|
);
|
|
const max = Math.max(g0, g1, g2);
|
|
let edge;
|
|
let mid;
|
|
let midTexcoord;
|
|
if (max > minDistanceSqrd) {
|
|
if (g0 === max) {
|
|
edge = `${Math.min(i0, i1)} ${Math.max(i0, i1)}`;
|
|
i = edges[edge];
|
|
if (!defined_default(i)) {
|
|
mid = Cartesian3_default.add(v0, v1, subdivisionMidScratch);
|
|
Cartesian3_default.multiplyByScalar(mid, 0.5, mid);
|
|
subdividedPositions.push(mid.x, mid.y, mid.z);
|
|
i = subdividedPositions.length / 3 - 1;
|
|
edges[edge] = i;
|
|
if (hasTexcoords) {
|
|
midTexcoord = Cartesian2_default.add(t0, t1, subdivisionTexcoordMidScratch);
|
|
Cartesian2_default.multiplyByScalar(midTexcoord, 0.5, midTexcoord);
|
|
subdividedTexcoords.push(midTexcoord.x, midTexcoord.y);
|
|
}
|
|
}
|
|
triangles.push(i0, i, i2);
|
|
triangles.push(i, i1, i2);
|
|
} else if (g1 === max) {
|
|
edge = `${Math.min(i1, i2)} ${Math.max(i1, i2)}`;
|
|
i = edges[edge];
|
|
if (!defined_default(i)) {
|
|
mid = Cartesian3_default.add(v1, v2, subdivisionMidScratch);
|
|
Cartesian3_default.multiplyByScalar(mid, 0.5, mid);
|
|
subdividedPositions.push(mid.x, mid.y, mid.z);
|
|
i = subdividedPositions.length / 3 - 1;
|
|
edges[edge] = i;
|
|
if (hasTexcoords) {
|
|
midTexcoord = Cartesian2_default.add(t1, t2, subdivisionTexcoordMidScratch);
|
|
Cartesian2_default.multiplyByScalar(midTexcoord, 0.5, midTexcoord);
|
|
subdividedTexcoords.push(midTexcoord.x, midTexcoord.y);
|
|
}
|
|
}
|
|
triangles.push(i1, i, i0);
|
|
triangles.push(i, i2, i0);
|
|
} else if (g2 === max) {
|
|
edge = `${Math.min(i2, i0)} ${Math.max(i2, i0)}`;
|
|
i = edges[edge];
|
|
if (!defined_default(i)) {
|
|
mid = Cartesian3_default.add(v2, v0, subdivisionMidScratch);
|
|
Cartesian3_default.multiplyByScalar(mid, 0.5, mid);
|
|
subdividedPositions.push(mid.x, mid.y, mid.z);
|
|
i = subdividedPositions.length / 3 - 1;
|
|
edges[edge] = i;
|
|
if (hasTexcoords) {
|
|
midTexcoord = Cartesian2_default.add(t2, t0, subdivisionTexcoordMidScratch);
|
|
Cartesian2_default.multiplyByScalar(midTexcoord, 0.5, midTexcoord);
|
|
subdividedTexcoords.push(midTexcoord.x, midTexcoord.y);
|
|
}
|
|
}
|
|
triangles.push(i2, i, i1);
|
|
triangles.push(i, i0, i1);
|
|
}
|
|
} else {
|
|
subdividedIndices.push(i0);
|
|
subdividedIndices.push(i1);
|
|
subdividedIndices.push(i2);
|
|
}
|
|
}
|
|
const geometryOptions = {
|
|
attributes: {
|
|
position: new GeometryAttribute_default({
|
|
componentDatatype: ComponentDatatype_default.DOUBLE,
|
|
componentsPerAttribute: 3,
|
|
values: subdividedPositions
|
|
})
|
|
},
|
|
indices: subdividedIndices,
|
|
primitiveType: PrimitiveType_default.TRIANGLES
|
|
};
|
|
if (hasTexcoords) {
|
|
geometryOptions.attributes.st = new GeometryAttribute_default({
|
|
componentDatatype: ComponentDatatype_default.FLOAT,
|
|
componentsPerAttribute: 2,
|
|
values: subdividedTexcoords
|
|
});
|
|
}
|
|
return new Geometry_default(geometryOptions);
|
|
};
|
|
var subdivisionC0Scratch = new Cartographic_default();
|
|
var subdivisionC1Scratch = new Cartographic_default();
|
|
var subdivisionC2Scratch = new Cartographic_default();
|
|
var subdivisionCartographicScratch = new Cartographic_default();
|
|
PolygonPipeline.computeRhumbLineSubdivision = function(ellipsoid, positions, indices, texcoords, granularity) {
|
|
granularity = defaultValue_default(granularity, Math_default.RADIANS_PER_DEGREE);
|
|
const hasTexcoords = defined_default(texcoords);
|
|
Check_default.typeOf.object("ellipsoid", ellipsoid);
|
|
Check_default.defined("positions", positions);
|
|
Check_default.defined("indices", indices);
|
|
Check_default.typeOf.number.greaterThanOrEquals("indices.length", indices.length, 3);
|
|
Check_default.typeOf.number.equals("indices.length % 3", "0", indices.length % 3, 0);
|
|
Check_default.typeOf.number.greaterThan("granularity", granularity, 0);
|
|
const triangles = indices.slice(0);
|
|
let i;
|
|
const length = positions.length;
|
|
const subdividedPositions = new Array(length * 3);
|
|
const subdividedTexcoords = new Array(length * 2);
|
|
let q = 0;
|
|
let p = 0;
|
|
for (i = 0; i < length; i++) {
|
|
const item = positions[i];
|
|
subdividedPositions[q++] = item.x;
|
|
subdividedPositions[q++] = item.y;
|
|
subdividedPositions[q++] = item.z;
|
|
if (hasTexcoords) {
|
|
const texcoordItem = texcoords[i];
|
|
subdividedTexcoords[p++] = texcoordItem.x;
|
|
subdividedTexcoords[p++] = texcoordItem.y;
|
|
}
|
|
}
|
|
const subdividedIndices = [];
|
|
const edges = {};
|
|
const radius = ellipsoid.maximumRadius;
|
|
const minDistance = Math_default.chordLength(granularity, radius);
|
|
const rhumb0 = new EllipsoidRhumbLine_default(void 0, void 0, ellipsoid);
|
|
const rhumb1 = new EllipsoidRhumbLine_default(void 0, void 0, ellipsoid);
|
|
const rhumb2 = new EllipsoidRhumbLine_default(void 0, void 0, ellipsoid);
|
|
while (triangles.length > 0) {
|
|
const i2 = triangles.pop();
|
|
const i1 = triangles.pop();
|
|
const i0 = triangles.pop();
|
|
const v0 = Cartesian3_default.fromArray(
|
|
subdividedPositions,
|
|
i0 * 3,
|
|
subdivisionV0Scratch
|
|
);
|
|
const v1 = Cartesian3_default.fromArray(
|
|
subdividedPositions,
|
|
i1 * 3,
|
|
subdivisionV1Scratch
|
|
);
|
|
const v2 = Cartesian3_default.fromArray(
|
|
subdividedPositions,
|
|
i2 * 3,
|
|
subdivisionV2Scratch
|
|
);
|
|
let t0, t1, t2;
|
|
if (hasTexcoords) {
|
|
t0 = Cartesian2_default.fromArray(
|
|
subdividedTexcoords,
|
|
i0 * 2,
|
|
subdivisionT0Scratch
|
|
);
|
|
t1 = Cartesian2_default.fromArray(
|
|
subdividedTexcoords,
|
|
i1 * 2,
|
|
subdivisionT1Scratch
|
|
);
|
|
t2 = Cartesian2_default.fromArray(
|
|
subdividedTexcoords,
|
|
i2 * 2,
|
|
subdivisionT2Scratch
|
|
);
|
|
}
|
|
const c0 = ellipsoid.cartesianToCartographic(v0, subdivisionC0Scratch);
|
|
const c1 = ellipsoid.cartesianToCartographic(v1, subdivisionC1Scratch);
|
|
const c2 = ellipsoid.cartesianToCartographic(v2, subdivisionC2Scratch);
|
|
rhumb0.setEndPoints(c0, c1);
|
|
const g0 = rhumb0.surfaceDistance;
|
|
rhumb1.setEndPoints(c1, c2);
|
|
const g1 = rhumb1.surfaceDistance;
|
|
rhumb2.setEndPoints(c2, c0);
|
|
const g2 = rhumb2.surfaceDistance;
|
|
const max = Math.max(g0, g1, g2);
|
|
let edge;
|
|
let mid;
|
|
let midHeight;
|
|
let midCartesian3;
|
|
let midTexcoord;
|
|
if (max > minDistance) {
|
|
if (g0 === max) {
|
|
edge = `${Math.min(i0, i1)} ${Math.max(i0, i1)}`;
|
|
i = edges[edge];
|
|
if (!defined_default(i)) {
|
|
mid = rhumb0.interpolateUsingFraction(
|
|
0.5,
|
|
subdivisionCartographicScratch
|
|
);
|
|
midHeight = (c0.height + c1.height) * 0.5;
|
|
midCartesian3 = Cartesian3_default.fromRadians(
|
|
mid.longitude,
|
|
mid.latitude,
|
|
midHeight,
|
|
ellipsoid,
|
|
subdivisionMidScratch
|
|
);
|
|
subdividedPositions.push(
|
|
midCartesian3.x,
|
|
midCartesian3.y,
|
|
midCartesian3.z
|
|
);
|
|
i = subdividedPositions.length / 3 - 1;
|
|
edges[edge] = i;
|
|
if (hasTexcoords) {
|
|
midTexcoord = Cartesian2_default.add(t0, t1, subdivisionTexcoordMidScratch);
|
|
Cartesian2_default.multiplyByScalar(midTexcoord, 0.5, midTexcoord);
|
|
subdividedTexcoords.push(midTexcoord.x, midTexcoord.y);
|
|
}
|
|
}
|
|
triangles.push(i0, i, i2);
|
|
triangles.push(i, i1, i2);
|
|
} else if (g1 === max) {
|
|
edge = `${Math.min(i1, i2)} ${Math.max(i1, i2)}`;
|
|
i = edges[edge];
|
|
if (!defined_default(i)) {
|
|
mid = rhumb1.interpolateUsingFraction(
|
|
0.5,
|
|
subdivisionCartographicScratch
|
|
);
|
|
midHeight = (c1.height + c2.height) * 0.5;
|
|
midCartesian3 = Cartesian3_default.fromRadians(
|
|
mid.longitude,
|
|
mid.latitude,
|
|
midHeight,
|
|
ellipsoid,
|
|
subdivisionMidScratch
|
|
);
|
|
subdividedPositions.push(
|
|
midCartesian3.x,
|
|
midCartesian3.y,
|
|
midCartesian3.z
|
|
);
|
|
i = subdividedPositions.length / 3 - 1;
|
|
edges[edge] = i;
|
|
if (hasTexcoords) {
|
|
midTexcoord = Cartesian2_default.add(t1, t2, subdivisionTexcoordMidScratch);
|
|
Cartesian2_default.multiplyByScalar(midTexcoord, 0.5, midTexcoord);
|
|
subdividedTexcoords.push(midTexcoord.x, midTexcoord.y);
|
|
}
|
|
}
|
|
triangles.push(i1, i, i0);
|
|
triangles.push(i, i2, i0);
|
|
} else if (g2 === max) {
|
|
edge = `${Math.min(i2, i0)} ${Math.max(i2, i0)}`;
|
|
i = edges[edge];
|
|
if (!defined_default(i)) {
|
|
mid = rhumb2.interpolateUsingFraction(
|
|
0.5,
|
|
subdivisionCartographicScratch
|
|
);
|
|
midHeight = (c2.height + c0.height) * 0.5;
|
|
midCartesian3 = Cartesian3_default.fromRadians(
|
|
mid.longitude,
|
|
mid.latitude,
|
|
midHeight,
|
|
ellipsoid,
|
|
subdivisionMidScratch
|
|
);
|
|
subdividedPositions.push(
|
|
midCartesian3.x,
|
|
midCartesian3.y,
|
|
midCartesian3.z
|
|
);
|
|
i = subdividedPositions.length / 3 - 1;
|
|
edges[edge] = i;
|
|
if (hasTexcoords) {
|
|
midTexcoord = Cartesian2_default.add(t2, t0, subdivisionTexcoordMidScratch);
|
|
Cartesian2_default.multiplyByScalar(midTexcoord, 0.5, midTexcoord);
|
|
subdividedTexcoords.push(midTexcoord.x, midTexcoord.y);
|
|
}
|
|
}
|
|
triangles.push(i2, i, i1);
|
|
triangles.push(i, i0, i1);
|
|
}
|
|
} else {
|
|
subdividedIndices.push(i0);
|
|
subdividedIndices.push(i1);
|
|
subdividedIndices.push(i2);
|
|
}
|
|
}
|
|
const geometryOptions = {
|
|
attributes: {
|
|
position: new GeometryAttribute_default({
|
|
componentDatatype: ComponentDatatype_default.DOUBLE,
|
|
componentsPerAttribute: 3,
|
|
values: subdividedPositions
|
|
})
|
|
},
|
|
indices: subdividedIndices,
|
|
primitiveType: PrimitiveType_default.TRIANGLES
|
|
};
|
|
if (hasTexcoords) {
|
|
geometryOptions.attributes.st = new GeometryAttribute_default({
|
|
componentDatatype: ComponentDatatype_default.FLOAT,
|
|
componentsPerAttribute: 2,
|
|
values: subdividedTexcoords
|
|
});
|
|
}
|
|
return new Geometry_default(geometryOptions);
|
|
};
|
|
PolygonPipeline.scaleToGeodeticHeight = function(positions, height, ellipsoid, scaleToSurface) {
|
|
ellipsoid = defaultValue_default(ellipsoid, Ellipsoid_default.WGS84);
|
|
let n = scaleToGeodeticHeightN;
|
|
let p = scaleToGeodeticHeightP;
|
|
height = defaultValue_default(height, 0);
|
|
scaleToSurface = defaultValue_default(scaleToSurface, true);
|
|
if (defined_default(positions)) {
|
|
const length = positions.length;
|
|
for (let i = 0; i < length; i += 3) {
|
|
Cartesian3_default.fromArray(positions, i, p);
|
|
if (scaleToSurface) {
|
|
p = ellipsoid.scaleToGeodeticSurface(p, p);
|
|
}
|
|
if (height !== 0) {
|
|
n = ellipsoid.geodeticSurfaceNormal(p, n);
|
|
Cartesian3_default.multiplyByScalar(n, height, n);
|
|
Cartesian3_default.add(p, n, p);
|
|
}
|
|
positions[i] = p.x;
|
|
positions[i + 1] = p.y;
|
|
positions[i + 2] = p.z;
|
|
}
|
|
}
|
|
return positions;
|
|
};
|
|
var PolygonPipeline_default = PolygonPipeline;
|
|
|
|
export {
|
|
WindingOrder_default,
|
|
PolygonPipeline_default
|
|
};
|