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629 lines
22 KiB
JavaScript
629 lines
22 KiB
JavaScript
/**
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* Cesium - https://github.com/CesiumGS/cesium
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*
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* Copyright 2011-2020 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/master/LICENSE.md for full licensing details.
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*/
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define(['./GeometryOffsetAttribute-d63c288d', './arrayRemoveDuplicates-28d5a12e', './Transforms-f1816abc', './Cartesian2-716c2715', './Check-d18af7c4', './ComponentDatatype-549ec0d3', './PolylineVolumeGeometryLibrary-ae862093', './CorridorGeometryLibrary-824cd871', './when-208fe5b0', './GeometryAttribute-0ee94cf1', './GeometryAttributes-b0b294d8', './IndexDatatype-d9b71b2b', './Math-3ba16bed', './PolygonPipeline-39ada67a', './RuntimeError-7f634f5d', './WebGLConstants-76bb35d1', './EllipsoidTangentPlane-8e486e83', './IntersectionTests-680c4e46', './Plane-f5dfabcd', './PolylinePipeline-13b674b4', './EllipsoidGeodesic-4bc5cec5', './EllipsoidRhumbLine-4543b386'], function (GeometryOffsetAttribute, arrayRemoveDuplicates, Transforms, Cartesian2, Check, ComponentDatatype, PolylineVolumeGeometryLibrary, CorridorGeometryLibrary, when, GeometryAttribute, GeometryAttributes, IndexDatatype, _Math, PolygonPipeline, RuntimeError, WebGLConstants, EllipsoidTangentPlane, IntersectionTests, Plane, PolylinePipeline, EllipsoidGeodesic, EllipsoidRhumbLine) { 'use strict';
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var cartesian1 = new Cartesian2.Cartesian3();
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var cartesian2 = new Cartesian2.Cartesian3();
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var cartesian3 = new Cartesian2.Cartesian3();
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function scaleToSurface(positions, ellipsoid) {
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for (var i = 0; i < positions.length; i++) {
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positions[i] = ellipsoid.scaleToGeodeticSurface(positions[i], positions[i]);
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}
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return positions;
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}
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function combine(computedPositions, cornerType) {
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var wallIndices = [];
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var positions = computedPositions.positions;
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var corners = computedPositions.corners;
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var endPositions = computedPositions.endPositions;
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var attributes = new GeometryAttributes.GeometryAttributes();
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var corner;
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var leftCount = 0;
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var rightCount = 0;
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var i;
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var indicesLength = 0;
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var length;
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for (i = 0; i < positions.length; i += 2) {
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length = positions[i].length - 3;
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leftCount += length; //subtracting 3 to account for duplicate points at corners
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indicesLength += (length / 3) * 4;
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rightCount += positions[i + 1].length - 3;
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}
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leftCount += 3; //add back count for end positions
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rightCount += 3;
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for (i = 0; i < corners.length; i++) {
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corner = corners[i];
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var leftSide = corners[i].leftPositions;
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if (when.defined(leftSide)) {
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length = leftSide.length;
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leftCount += length;
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indicesLength += (length / 3) * 2;
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} else {
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length = corners[i].rightPositions.length;
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rightCount += length;
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indicesLength += (length / 3) * 2;
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}
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}
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var addEndPositions = when.defined(endPositions);
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var endPositionLength;
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if (addEndPositions) {
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endPositionLength = endPositions[0].length - 3;
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leftCount += endPositionLength;
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rightCount += endPositionLength;
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endPositionLength /= 3;
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indicesLength += endPositionLength * 4;
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}
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var size = leftCount + rightCount;
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var finalPositions = new Float64Array(size);
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var front = 0;
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var back = size - 1;
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var UL, LL, UR, LR;
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var rightPos, leftPos;
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var halfLength = endPositionLength / 2;
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var indices = IndexDatatype.IndexDatatype.createTypedArray(size / 3, indicesLength + 4);
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var index = 0;
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indices[index++] = front / 3;
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indices[index++] = (back - 2) / 3;
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if (addEndPositions) {
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// add rounded end
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wallIndices.push(front / 3);
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leftPos = cartesian1;
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rightPos = cartesian2;
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var firstEndPositions = endPositions[0];
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for (i = 0; i < halfLength; i++) {
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leftPos = Cartesian2.Cartesian3.fromArray(
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firstEndPositions,
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(halfLength - 1 - i) * 3,
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leftPos
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);
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rightPos = Cartesian2.Cartesian3.fromArray(
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firstEndPositions,
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(halfLength + i) * 3,
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rightPos
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);
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CorridorGeometryLibrary.CorridorGeometryLibrary.addAttribute(finalPositions, rightPos, front);
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CorridorGeometryLibrary.CorridorGeometryLibrary.addAttribute(
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finalPositions,
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leftPos,
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undefined,
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back
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);
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LL = front / 3;
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LR = LL + 1;
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UL = (back - 2) / 3;
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UR = UL - 1;
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indices[index++] = UL;
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indices[index++] = UR;
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indices[index++] = LL;
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indices[index++] = LR;
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front += 3;
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back -= 3;
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}
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}
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var posIndex = 0;
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var rightEdge = positions[posIndex++]; //add first two edges
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var leftEdge = positions[posIndex++];
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finalPositions.set(rightEdge, front);
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finalPositions.set(leftEdge, back - leftEdge.length + 1);
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length = leftEdge.length - 3;
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wallIndices.push(front / 3, (back - 2) / 3);
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for (i = 0; i < length; i += 3) {
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LL = front / 3;
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LR = LL + 1;
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UL = (back - 2) / 3;
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UR = UL - 1;
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indices[index++] = UL;
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indices[index++] = UR;
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indices[index++] = LL;
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indices[index++] = LR;
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front += 3;
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back -= 3;
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}
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for (i = 0; i < corners.length; i++) {
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var j;
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corner = corners[i];
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var l = corner.leftPositions;
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var r = corner.rightPositions;
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var start;
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var outsidePoint = cartesian3;
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if (when.defined(l)) {
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back -= 3;
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start = UR;
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wallIndices.push(LR);
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for (j = 0; j < l.length / 3; j++) {
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outsidePoint = Cartesian2.Cartesian3.fromArray(l, j * 3, outsidePoint);
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indices[index++] = start - j - 1;
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indices[index++] = start - j;
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CorridorGeometryLibrary.CorridorGeometryLibrary.addAttribute(
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finalPositions,
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outsidePoint,
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undefined,
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back
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);
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back -= 3;
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}
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wallIndices.push(start - Math.floor(l.length / 6));
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if (cornerType === PolylineVolumeGeometryLibrary.CornerType.BEVELED) {
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wallIndices.push((back - 2) / 3 + 1);
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}
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front += 3;
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} else {
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front += 3;
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start = LR;
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wallIndices.push(UR);
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for (j = 0; j < r.length / 3; j++) {
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outsidePoint = Cartesian2.Cartesian3.fromArray(r, j * 3, outsidePoint);
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indices[index++] = start + j;
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indices[index++] = start + j + 1;
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CorridorGeometryLibrary.CorridorGeometryLibrary.addAttribute(
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finalPositions,
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outsidePoint,
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front
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);
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front += 3;
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}
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wallIndices.push(start + Math.floor(r.length / 6));
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if (cornerType === PolylineVolumeGeometryLibrary.CornerType.BEVELED) {
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wallIndices.push(front / 3 - 1);
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}
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back -= 3;
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}
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rightEdge = positions[posIndex++];
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leftEdge = positions[posIndex++];
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rightEdge.splice(0, 3); //remove duplicate points added by corner
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leftEdge.splice(leftEdge.length - 3, 3);
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finalPositions.set(rightEdge, front);
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finalPositions.set(leftEdge, back - leftEdge.length + 1);
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length = leftEdge.length - 3;
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for (j = 0; j < leftEdge.length; j += 3) {
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LR = front / 3;
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LL = LR - 1;
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UR = (back - 2) / 3;
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UL = UR + 1;
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indices[index++] = UL;
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indices[index++] = UR;
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indices[index++] = LL;
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indices[index++] = LR;
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front += 3;
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back -= 3;
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}
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front -= 3;
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back += 3;
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wallIndices.push(front / 3, (back - 2) / 3);
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}
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if (addEndPositions) {
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// add rounded end
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front += 3;
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back -= 3;
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leftPos = cartesian1;
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rightPos = cartesian2;
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var lastEndPositions = endPositions[1];
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for (i = 0; i < halfLength; i++) {
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leftPos = Cartesian2.Cartesian3.fromArray(
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lastEndPositions,
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(endPositionLength - i - 1) * 3,
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leftPos
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);
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rightPos = Cartesian2.Cartesian3.fromArray(lastEndPositions, i * 3, rightPos);
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CorridorGeometryLibrary.CorridorGeometryLibrary.addAttribute(
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finalPositions,
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leftPos,
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undefined,
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back
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);
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CorridorGeometryLibrary.CorridorGeometryLibrary.addAttribute(finalPositions, rightPos, front);
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LR = front / 3;
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LL = LR - 1;
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UR = (back - 2) / 3;
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UL = UR + 1;
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indices[index++] = UL;
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indices[index++] = UR;
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indices[index++] = LL;
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indices[index++] = LR;
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front += 3;
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back -= 3;
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}
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wallIndices.push(front / 3);
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} else {
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wallIndices.push(front / 3, (back - 2) / 3);
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}
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indices[index++] = front / 3;
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indices[index++] = (back - 2) / 3;
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attributes.position = new GeometryAttribute.GeometryAttribute({
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componentDatatype: ComponentDatatype.ComponentDatatype.DOUBLE,
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componentsPerAttribute: 3,
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values: finalPositions,
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});
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return {
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attributes: attributes,
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indices: indices,
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wallIndices: wallIndices,
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};
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}
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function computePositionsExtruded(params) {
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var ellipsoid = params.ellipsoid;
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var computedPositions = CorridorGeometryLibrary.CorridorGeometryLibrary.computePositions(params);
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var attr = combine(computedPositions, params.cornerType);
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var wallIndices = attr.wallIndices;
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var height = params.height;
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var extrudedHeight = params.extrudedHeight;
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var attributes = attr.attributes;
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var indices = attr.indices;
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var positions = attributes.position.values;
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var length = positions.length;
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var extrudedPositions = new Float64Array(length);
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extrudedPositions.set(positions);
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var newPositions = new Float64Array(length * 2);
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positions = PolygonPipeline.PolygonPipeline.scaleToGeodeticHeight(
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positions,
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height,
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ellipsoid
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);
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extrudedPositions = PolygonPipeline.PolygonPipeline.scaleToGeodeticHeight(
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extrudedPositions,
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extrudedHeight,
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ellipsoid
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);
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newPositions.set(positions);
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newPositions.set(extrudedPositions, length);
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attributes.position.values = newPositions;
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length /= 3;
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if (when.defined(params.offsetAttribute)) {
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var applyOffset = new Uint8Array(length * 2);
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if (params.offsetAttribute === GeometryOffsetAttribute.GeometryOffsetAttribute.TOP) {
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applyOffset = GeometryOffsetAttribute.arrayFill(applyOffset, 1, 0, length);
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} else {
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var applyOffsetValue =
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params.offsetAttribute === GeometryOffsetAttribute.GeometryOffsetAttribute.NONE ? 0 : 1;
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applyOffset = GeometryOffsetAttribute.arrayFill(applyOffset, applyOffsetValue);
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}
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attributes.applyOffset = new GeometryAttribute.GeometryAttribute({
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componentDatatype: ComponentDatatype.ComponentDatatype.UNSIGNED_BYTE,
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componentsPerAttribute: 1,
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values: applyOffset,
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});
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}
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var i;
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var iLength = indices.length;
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var newIndices = IndexDatatype.IndexDatatype.createTypedArray(
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newPositions.length / 3,
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(iLength + wallIndices.length) * 2
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);
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newIndices.set(indices);
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var index = iLength;
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for (i = 0; i < iLength; i += 2) {
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// bottom indices
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var v0 = indices[i];
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var v1 = indices[i + 1];
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newIndices[index++] = v0 + length;
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newIndices[index++] = v1 + length;
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}
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var UL, LL;
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for (i = 0; i < wallIndices.length; i++) {
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//wall indices
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UL = wallIndices[i];
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LL = UL + length;
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newIndices[index++] = UL;
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newIndices[index++] = LL;
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}
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return {
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attributes: attributes,
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indices: newIndices,
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};
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}
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/**
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* A description of a corridor outline.
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*
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* @alias CorridorOutlineGeometry
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* @constructor
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*
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* @param {Object} options Object with the following properties:
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* @param {Cartesian3[]} options.positions An array of positions that define the center of the corridor outline.
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* @param {Number} options.width The distance between the edges of the corridor outline.
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* @param {Ellipsoid} [options.ellipsoid=Ellipsoid.WGS84] The ellipsoid to be used as a reference.
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* @param {Number} [options.granularity=CesiumMath.RADIANS_PER_DEGREE] The distance, in radians, between each latitude and longitude. Determines the number of positions in the buffer.
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* @param {Number} [options.height=0] The distance in meters between the positions and the ellipsoid surface.
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* @param {Number} [options.extrudedHeight] The distance in meters between the extruded face and the ellipsoid surface.
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* @param {CornerType} [options.cornerType=CornerType.ROUNDED] Determines the style of the corners.
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*
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* @see CorridorOutlineGeometry.createGeometry
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*
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* @example
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* var corridor = new Cesium.CorridorOutlineGeometry({
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* positions : Cesium.Cartesian3.fromDegreesArray([-72.0, 40.0, -70.0, 35.0]),
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* width : 100000
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* });
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*/
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function CorridorOutlineGeometry(options) {
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options = when.defaultValue(options, when.defaultValue.EMPTY_OBJECT);
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var positions = options.positions;
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var width = options.width;
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//>>includeStart('debug', pragmas.debug);
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Check.Check.typeOf.object("options.positions", positions);
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Check.Check.typeOf.number("options.width", width);
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//>>includeEnd('debug');
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var height = when.defaultValue(options.height, 0.0);
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var extrudedHeight = when.defaultValue(options.extrudedHeight, height);
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this._positions = positions;
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this._ellipsoid = Cartesian2.Ellipsoid.clone(
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when.defaultValue(options.ellipsoid, Cartesian2.Ellipsoid.WGS84)
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);
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this._width = width;
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this._height = Math.max(height, extrudedHeight);
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this._extrudedHeight = Math.min(height, extrudedHeight);
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this._cornerType = when.defaultValue(options.cornerType, PolylineVolumeGeometryLibrary.CornerType.ROUNDED);
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this._granularity = when.defaultValue(
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options.granularity,
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_Math.CesiumMath.RADIANS_PER_DEGREE
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);
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this._offsetAttribute = options.offsetAttribute;
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this._workerName = "createCorridorOutlineGeometry";
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/**
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* The number of elements used to pack the object into an array.
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* @type {Number}
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*/
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this.packedLength =
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1 + positions.length * Cartesian2.Cartesian3.packedLength + Cartesian2.Ellipsoid.packedLength + 6;
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}
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/**
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* Stores the provided instance into the provided array.
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*
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* @param {CorridorOutlineGeometry} value The value to pack.
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* @param {Number[]} array The array to pack into.
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* @param {Number} [startingIndex=0] The index into the array at which to start packing the elements.
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*
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* @returns {Number[]} The array that was packed into
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*/
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CorridorOutlineGeometry.pack = function (value, array, startingIndex) {
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//>>includeStart('debug', pragmas.debug);
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Check.Check.typeOf.object("value", value);
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Check.Check.typeOf.object("array", array);
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//>>includeEnd('debug');
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startingIndex = when.defaultValue(startingIndex, 0);
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var positions = value._positions;
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var length = positions.length;
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array[startingIndex++] = length;
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for (var i = 0; i < length; ++i, startingIndex += Cartesian2.Cartesian3.packedLength) {
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Cartesian2.Cartesian3.pack(positions[i], array, startingIndex);
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}
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Cartesian2.Ellipsoid.pack(value._ellipsoid, array, startingIndex);
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startingIndex += Cartesian2.Ellipsoid.packedLength;
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array[startingIndex++] = value._width;
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array[startingIndex++] = value._height;
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array[startingIndex++] = value._extrudedHeight;
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array[startingIndex++] = value._cornerType;
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array[startingIndex++] = value._granularity;
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array[startingIndex] = when.defaultValue(value._offsetAttribute, -1);
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return array;
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};
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var scratchEllipsoid = Cartesian2.Ellipsoid.clone(Cartesian2.Ellipsoid.UNIT_SPHERE);
|
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var scratchOptions = {
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positions: undefined,
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ellipsoid: scratchEllipsoid,
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width: undefined,
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height: undefined,
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extrudedHeight: undefined,
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|
cornerType: undefined,
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|
granularity: undefined,
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offsetAttribute: undefined,
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};
|
|
|
|
/**
|
|
* Retrieves an instance from a packed array.
|
|
*
|
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* @param {Number[]} array The packed array.
|
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* @param {Number} [startingIndex=0] The starting index of the element to be unpacked.
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* @param {CorridorOutlineGeometry} [result] The object into which to store the result.
|
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* @returns {CorridorOutlineGeometry} The modified result parameter or a new CorridorOutlineGeometry instance if one was not provided.
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*/
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CorridorOutlineGeometry.unpack = function (array, startingIndex, result) {
|
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//>>includeStart('debug', pragmas.debug);
|
|
Check.Check.typeOf.object("array", array);
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|
//>>includeEnd('debug');
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|
|
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startingIndex = when.defaultValue(startingIndex, 0);
|
|
|
|
var length = array[startingIndex++];
|
|
var positions = new Array(length);
|
|
|
|
for (var i = 0; i < length; ++i, startingIndex += Cartesian2.Cartesian3.packedLength) {
|
|
positions[i] = Cartesian2.Cartesian3.unpack(array, startingIndex);
|
|
}
|
|
|
|
var ellipsoid = Cartesian2.Ellipsoid.unpack(array, startingIndex, scratchEllipsoid);
|
|
startingIndex += Cartesian2.Ellipsoid.packedLength;
|
|
|
|
var width = array[startingIndex++];
|
|
var height = array[startingIndex++];
|
|
var extrudedHeight = array[startingIndex++];
|
|
var cornerType = array[startingIndex++];
|
|
var granularity = array[startingIndex++];
|
|
var offsetAttribute = array[startingIndex];
|
|
|
|
if (!when.defined(result)) {
|
|
scratchOptions.positions = positions;
|
|
scratchOptions.width = width;
|
|
scratchOptions.height = height;
|
|
scratchOptions.extrudedHeight = extrudedHeight;
|
|
scratchOptions.cornerType = cornerType;
|
|
scratchOptions.granularity = granularity;
|
|
scratchOptions.offsetAttribute =
|
|
offsetAttribute === -1 ? undefined : offsetAttribute;
|
|
return new CorridorOutlineGeometry(scratchOptions);
|
|
}
|
|
|
|
result._positions = positions;
|
|
result._ellipsoid = Cartesian2.Ellipsoid.clone(ellipsoid, result._ellipsoid);
|
|
result._width = width;
|
|
result._height = height;
|
|
result._extrudedHeight = extrudedHeight;
|
|
result._cornerType = cornerType;
|
|
result._granularity = granularity;
|
|
result._offsetAttribute =
|
|
offsetAttribute === -1 ? undefined : offsetAttribute;
|
|
|
|
return result;
|
|
};
|
|
|
|
/**
|
|
* Computes the geometric representation of a corridor, including its vertices, indices, and a bounding sphere.
|
|
*
|
|
* @param {CorridorOutlineGeometry} corridorOutlineGeometry A description of the corridor.
|
|
* @returns {Geometry|undefined} The computed vertices and indices.
|
|
*/
|
|
CorridorOutlineGeometry.createGeometry = function (corridorOutlineGeometry) {
|
|
var positions = corridorOutlineGeometry._positions;
|
|
var width = corridorOutlineGeometry._width;
|
|
var ellipsoid = corridorOutlineGeometry._ellipsoid;
|
|
|
|
positions = scaleToSurface(positions, ellipsoid);
|
|
var cleanPositions = arrayRemoveDuplicates.arrayRemoveDuplicates(
|
|
positions,
|
|
Cartesian2.Cartesian3.equalsEpsilon
|
|
);
|
|
|
|
if (cleanPositions.length < 2 || width <= 0) {
|
|
return;
|
|
}
|
|
|
|
var height = corridorOutlineGeometry._height;
|
|
var extrudedHeight = corridorOutlineGeometry._extrudedHeight;
|
|
var extrude = !_Math.CesiumMath.equalsEpsilon(
|
|
height,
|
|
extrudedHeight,
|
|
0,
|
|
_Math.CesiumMath.EPSILON2
|
|
);
|
|
|
|
var params = {
|
|
ellipsoid: ellipsoid,
|
|
positions: cleanPositions,
|
|
width: width,
|
|
cornerType: corridorOutlineGeometry._cornerType,
|
|
granularity: corridorOutlineGeometry._granularity,
|
|
saveAttributes: false,
|
|
};
|
|
var attr;
|
|
if (extrude) {
|
|
params.height = height;
|
|
params.extrudedHeight = extrudedHeight;
|
|
params.offsetAttribute = corridorOutlineGeometry._offsetAttribute;
|
|
attr = computePositionsExtruded(params);
|
|
} else {
|
|
var computedPositions = CorridorGeometryLibrary.CorridorGeometryLibrary.computePositions(params);
|
|
attr = combine(computedPositions, params.cornerType);
|
|
attr.attributes.position.values = PolygonPipeline.PolygonPipeline.scaleToGeodeticHeight(
|
|
attr.attributes.position.values,
|
|
height,
|
|
ellipsoid
|
|
);
|
|
|
|
if (when.defined(corridorOutlineGeometry._offsetAttribute)) {
|
|
var length = attr.attributes.position.values.length;
|
|
var applyOffset = new Uint8Array(length / 3);
|
|
var offsetValue =
|
|
corridorOutlineGeometry._offsetAttribute ===
|
|
GeometryOffsetAttribute.GeometryOffsetAttribute.NONE
|
|
? 0
|
|
: 1;
|
|
GeometryOffsetAttribute.arrayFill(applyOffset, offsetValue);
|
|
attr.attributes.applyOffset = new GeometryAttribute.GeometryAttribute({
|
|
componentDatatype: ComponentDatatype.ComponentDatatype.UNSIGNED_BYTE,
|
|
componentsPerAttribute: 1,
|
|
values: applyOffset,
|
|
});
|
|
}
|
|
}
|
|
var attributes = attr.attributes;
|
|
var boundingSphere = Transforms.BoundingSphere.fromVertices(
|
|
attributes.position.values,
|
|
undefined,
|
|
3
|
|
);
|
|
|
|
return new GeometryAttribute.Geometry({
|
|
attributes: attributes,
|
|
indices: attr.indices,
|
|
primitiveType: GeometryAttribute.PrimitiveType.LINES,
|
|
boundingSphere: boundingSphere,
|
|
offsetAttribute: corridorOutlineGeometry._offsetAttribute,
|
|
});
|
|
};
|
|
|
|
function createCorridorOutlineGeometry(corridorOutlineGeometry, offset) {
|
|
if (when.defined(offset)) {
|
|
corridorOutlineGeometry = CorridorOutlineGeometry.unpack(
|
|
corridorOutlineGeometry,
|
|
offset
|
|
);
|
|
}
|
|
corridorOutlineGeometry._ellipsoid = Cartesian2.Ellipsoid.clone(
|
|
corridorOutlineGeometry._ellipsoid
|
|
);
|
|
return CorridorOutlineGeometry.createGeometry(corridorOutlineGeometry);
|
|
}
|
|
|
|
return createCorridorOutlineGeometry;
|
|
|
|
});
|
|
//# sourceMappingURL=createCorridorOutlineGeometry.js.map
|