704 lines
26 KiB
JavaScript
704 lines
26 KiB
JavaScript
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/**
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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/main/LICENSE.md for full licensing details.
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*/
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define(['./when-4bbc8319', './Matrix2-265d9610', './ArcType-fc72c06c', './GeometryOffsetAttribute-7e016332', './Transforms-8b90e17c', './RuntimeError-5b082e8f', './ComponentDatatype-aad54330', './EllipsoidTangentPlane-f1a69a20', './GeometryAttribute-4bcb785f', './GeometryAttributes-7827a6c2', './GeometryInstance-d57564f8', './GeometryPipeline-e93f6439', './IndexDatatype-6739e544', './PolygonGeometryLibrary-e329b948', './PolygonPipeline-5fd67ae2', './combine-e9466e32', './WebGLConstants-508b9636', './AxisAlignedBoundingBox-2a0ca7ef', './IntersectionTests-596e31ec', './Plane-616c9c0a', './AttributeCompression-442278a0', './EncodedCartesian3-da8f96bc', './arrayRemoveDuplicates-65de6756', './EllipsoidRhumbLine-d09d563f'], (function (when, Matrix2, ArcType, GeometryOffsetAttribute, Transforms, RuntimeError, ComponentDatatype, EllipsoidTangentPlane, GeometryAttribute, GeometryAttributes, GeometryInstance, GeometryPipeline, IndexDatatype, PolygonGeometryLibrary, PolygonPipeline, combine, WebGLConstants, AxisAlignedBoundingBox, IntersectionTests, Plane, AttributeCompression, EncodedCartesian3, arrayRemoveDuplicates, EllipsoidRhumbLine) { 'use strict';
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const createGeometryFromPositionsPositions = [];
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const createGeometryFromPositionsSubdivided = [];
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function createGeometryFromPositions(
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ellipsoid,
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positions,
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minDistance,
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perPositionHeight,
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arcType
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) {
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const tangentPlane = EllipsoidTangentPlane.EllipsoidTangentPlane.fromPoints(positions, ellipsoid);
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const positions2D = tangentPlane.projectPointsOntoPlane(
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positions,
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createGeometryFromPositionsPositions
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);
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const originalWindingOrder = PolygonPipeline.PolygonPipeline.computeWindingOrder2D(
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positions2D
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);
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if (originalWindingOrder === PolygonPipeline.WindingOrder.CLOCKWISE) {
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positions2D.reverse();
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positions = positions.slice().reverse();
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}
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let subdividedPositions;
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let i;
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let length = positions.length;
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let index = 0;
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if (!perPositionHeight) {
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let numVertices = 0;
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if (arcType === ArcType.ArcType.GEODESIC) {
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for (i = 0; i < length; i++) {
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numVertices += PolygonGeometryLibrary.PolygonGeometryLibrary.subdivideLineCount(
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positions[i],
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positions[(i + 1) % length],
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minDistance
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);
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}
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} else if (arcType === ArcType.ArcType.RHUMB) {
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for (i = 0; i < length; i++) {
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numVertices += PolygonGeometryLibrary.PolygonGeometryLibrary.subdivideRhumbLineCount(
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ellipsoid,
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positions[i],
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positions[(i + 1) % length],
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minDistance
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);
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}
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}
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subdividedPositions = new Float64Array(numVertices * 3);
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for (i = 0; i < length; i++) {
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let tempPositions;
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if (arcType === ArcType.ArcType.GEODESIC) {
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tempPositions = PolygonGeometryLibrary.PolygonGeometryLibrary.subdivideLine(
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positions[i],
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positions[(i + 1) % length],
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minDistance,
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createGeometryFromPositionsSubdivided
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);
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} else if (arcType === ArcType.ArcType.RHUMB) {
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tempPositions = PolygonGeometryLibrary.PolygonGeometryLibrary.subdivideRhumbLine(
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ellipsoid,
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positions[i],
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positions[(i + 1) % length],
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minDistance,
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createGeometryFromPositionsSubdivided
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);
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}
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const tempPositionsLength = tempPositions.length;
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for (let j = 0; j < tempPositionsLength; ++j) {
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subdividedPositions[index++] = tempPositions[j];
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}
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}
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} else {
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subdividedPositions = new Float64Array(length * 2 * 3);
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for (i = 0; i < length; i++) {
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const p0 = positions[i];
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const p1 = positions[(i + 1) % length];
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subdividedPositions[index++] = p0.x;
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subdividedPositions[index++] = p0.y;
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subdividedPositions[index++] = p0.z;
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subdividedPositions[index++] = p1.x;
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subdividedPositions[index++] = p1.y;
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subdividedPositions[index++] = p1.z;
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}
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}
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length = subdividedPositions.length / 3;
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const indicesSize = length * 2;
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const indices = IndexDatatype.IndexDatatype.createTypedArray(length, indicesSize);
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index = 0;
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for (i = 0; i < length - 1; i++) {
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indices[index++] = i;
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indices[index++] = i + 1;
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}
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indices[index++] = length - 1;
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indices[index++] = 0;
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return new GeometryInstance.GeometryInstance({
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geometry: new GeometryAttribute.Geometry({
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attributes: new GeometryAttributes.GeometryAttributes({
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position: new GeometryAttribute.GeometryAttribute({
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componentDatatype: ComponentDatatype.ComponentDatatype.DOUBLE,
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componentsPerAttribute: 3,
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values: subdividedPositions,
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}),
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}),
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indices: indices,
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primitiveType: GeometryAttribute.PrimitiveType.LINES,
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}),
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});
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}
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function createGeometryFromPositionsExtruded(
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ellipsoid,
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positions,
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minDistance,
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perPositionHeight,
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arcType
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) {
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const tangentPlane = EllipsoidTangentPlane.EllipsoidTangentPlane.fromPoints(positions, ellipsoid);
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const positions2D = tangentPlane.projectPointsOntoPlane(
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positions,
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createGeometryFromPositionsPositions
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);
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const originalWindingOrder = PolygonPipeline.PolygonPipeline.computeWindingOrder2D(
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positions2D
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);
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if (originalWindingOrder === PolygonPipeline.WindingOrder.CLOCKWISE) {
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positions2D.reverse();
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positions = positions.slice().reverse();
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}
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let subdividedPositions;
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let i;
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let length = positions.length;
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const corners = new Array(length);
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let index = 0;
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if (!perPositionHeight) {
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let numVertices = 0;
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if (arcType === ArcType.ArcType.GEODESIC) {
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for (i = 0; i < length; i++) {
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numVertices += PolygonGeometryLibrary.PolygonGeometryLibrary.subdivideLineCount(
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positions[i],
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positions[(i + 1) % length],
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minDistance
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);
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}
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} else if (arcType === ArcType.ArcType.RHUMB) {
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for (i = 0; i < length; i++) {
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numVertices += PolygonGeometryLibrary.PolygonGeometryLibrary.subdivideRhumbLineCount(
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ellipsoid,
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positions[i],
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positions[(i + 1) % length],
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minDistance
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);
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}
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}
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subdividedPositions = new Float64Array(numVertices * 3 * 2);
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for (i = 0; i < length; ++i) {
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corners[i] = index / 3;
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let tempPositions;
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if (arcType === ArcType.ArcType.GEODESIC) {
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tempPositions = PolygonGeometryLibrary.PolygonGeometryLibrary.subdivideLine(
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positions[i],
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positions[(i + 1) % length],
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minDistance,
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createGeometryFromPositionsSubdivided
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);
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} else if (arcType === ArcType.ArcType.RHUMB) {
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tempPositions = PolygonGeometryLibrary.PolygonGeometryLibrary.subdivideRhumbLine(
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ellipsoid,
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positions[i],
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positions[(i + 1) % length],
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minDistance,
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createGeometryFromPositionsSubdivided
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);
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}
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const tempPositionsLength = tempPositions.length;
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for (let j = 0; j < tempPositionsLength; ++j) {
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subdividedPositions[index++] = tempPositions[j];
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}
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}
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} else {
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subdividedPositions = new Float64Array(length * 2 * 3 * 2);
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for (i = 0; i < length; ++i) {
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corners[i] = index / 3;
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const p0 = positions[i];
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const p1 = positions[(i + 1) % length];
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subdividedPositions[index++] = p0.x;
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subdividedPositions[index++] = p0.y;
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subdividedPositions[index++] = p0.z;
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subdividedPositions[index++] = p1.x;
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subdividedPositions[index++] = p1.y;
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subdividedPositions[index++] = p1.z;
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}
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}
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length = subdividedPositions.length / (3 * 2);
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const cornersLength = corners.length;
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const indicesSize = (length * 2 + cornersLength) * 2;
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const indices = IndexDatatype.IndexDatatype.createTypedArray(
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length + cornersLength,
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indicesSize
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);
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index = 0;
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for (i = 0; i < length; ++i) {
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indices[index++] = i;
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indices[index++] = (i + 1) % length;
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indices[index++] = i + length;
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indices[index++] = ((i + 1) % length) + length;
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}
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for (i = 0; i < cornersLength; i++) {
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const corner = corners[i];
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indices[index++] = corner;
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indices[index++] = corner + length;
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}
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return new GeometryInstance.GeometryInstance({
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geometry: new GeometryAttribute.Geometry({
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attributes: new GeometryAttributes.GeometryAttributes({
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position: new GeometryAttribute.GeometryAttribute({
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componentDatatype: ComponentDatatype.ComponentDatatype.DOUBLE,
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componentsPerAttribute: 3,
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values: subdividedPositions,
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}),
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}),
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indices: indices,
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primitiveType: GeometryAttribute.PrimitiveType.LINES,
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}),
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});
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}
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/**
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* A description of the outline of a polygon on the ellipsoid. The polygon is defined by a polygon hierarchy.
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*
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* @alias PolygonOutlineGeometry
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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 {PolygonHierarchy} options.polygonHierarchy A polygon hierarchy that can include holes.
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* @param {Number} [options.height=0.0] The distance in meters between the polygon and the ellipsoid surface.
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* @param {Number} [options.extrudedHeight] The distance in meters between the polygon's extruded face and the ellipsoid surface.
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* @param {VertexFormat} [options.vertexFormat=VertexFormat.DEFAULT] The vertex attributes to be computed.
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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 {Boolean} [options.perPositionHeight=false] Use the height of options.positions for each position instead of using options.height to determine the height.
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* @param {ArcType} [options.arcType=ArcType.GEODESIC] The type of path the outline must follow. Valid options are {@link ArcType.GEODESIC} and {@link ArcType.RHUMB}.
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*
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* @see PolygonOutlineGeometry#createGeometry
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* @see PolygonOutlineGeometry#fromPositions
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*
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* @example
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* // 1. create a polygon outline from points
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* const polygon = new Cesium.PolygonOutlineGeometry({
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* polygonHierarchy : new Cesium.PolygonHierarchy(
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* Cesium.Cartesian3.fromDegreesArray([
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* -72.0, 40.0,
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* -70.0, 35.0,
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* -75.0, 30.0,
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* -70.0, 30.0,
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* -68.0, 40.0
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* ])
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* )
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* });
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* const geometry = Cesium.PolygonOutlineGeometry.createGeometry(polygon);
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*
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* // 2. create a nested polygon with holes outline
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* const polygonWithHole = new Cesium.PolygonOutlineGeometry({
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* polygonHierarchy : new Cesium.PolygonHierarchy(
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* Cesium.Cartesian3.fromDegreesArray([
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* -109.0, 30.0,
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* -95.0, 30.0,
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* -95.0, 40.0,
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* -109.0, 40.0
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* ]),
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* [new Cesium.PolygonHierarchy(
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* Cesium.Cartesian3.fromDegreesArray([
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* -107.0, 31.0,
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* -107.0, 39.0,
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* -97.0, 39.0,
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* -97.0, 31.0
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* ]),
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* [new Cesium.PolygonHierarchy(
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* Cesium.Cartesian3.fromDegreesArray([
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* -105.0, 33.0,
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* -99.0, 33.0,
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* -99.0, 37.0,
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* -105.0, 37.0
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* ]),
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* [new Cesium.PolygonHierarchy(
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* Cesium.Cartesian3.fromDegreesArray([
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* -103.0, 34.0,
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* -101.0, 34.0,
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* -101.0, 36.0,
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* -103.0, 36.0
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* ])
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* )]
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* )]
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* )]
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* )
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* });
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* const geometry = Cesium.PolygonOutlineGeometry.createGeometry(polygonWithHole);
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*
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* // 3. create extruded polygon outline
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* const extrudedPolygon = new Cesium.PolygonOutlineGeometry({
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* polygonHierarchy : new Cesium.PolygonHierarchy(
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* Cesium.Cartesian3.fromDegreesArray([
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* -72.0, 40.0,
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* -70.0, 35.0,
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* -75.0, 30.0,
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* -70.0, 30.0,
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* -68.0, 40.0
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* ])
|
||
|
|
* ),
|
||
|
|
* extrudedHeight: 300000
|
||
|
|
* });
|
||
|
|
* const geometry = Cesium.PolygonOutlineGeometry.createGeometry(extrudedPolygon);
|
||
|
|
*/
|
||
|
|
function PolygonOutlineGeometry(options) {
|
||
|
|
//>>includeStart('debug', pragmas.debug);
|
||
|
|
RuntimeError.Check.typeOf.object("options", options);
|
||
|
|
RuntimeError.Check.typeOf.object("options.polygonHierarchy", options.polygonHierarchy);
|
||
|
|
|
||
|
|
if (options.perPositionHeight && when.defined(options.height)) {
|
||
|
|
throw new RuntimeError.DeveloperError(
|
||
|
|
"Cannot use both options.perPositionHeight and options.height"
|
||
|
|
);
|
||
|
|
}
|
||
|
|
if (
|
||
|
|
when.defined(options.arcType) &&
|
||
|
|
options.arcType !== ArcType.ArcType.GEODESIC &&
|
||
|
|
options.arcType !== ArcType.ArcType.RHUMB
|
||
|
|
) {
|
||
|
|
throw new RuntimeError.DeveloperError(
|
||
|
|
"Invalid arcType. Valid options are ArcType.GEODESIC and ArcType.RHUMB."
|
||
|
|
);
|
||
|
|
}
|
||
|
|
//>>includeEnd('debug');
|
||
|
|
|
||
|
|
const polygonHierarchy = options.polygonHierarchy;
|
||
|
|
const ellipsoid = when.defaultValue(options.ellipsoid, Matrix2.Ellipsoid.WGS84);
|
||
|
|
const granularity = when.defaultValue(
|
||
|
|
options.granularity,
|
||
|
|
ComponentDatatype.CesiumMath.RADIANS_PER_DEGREE
|
||
|
|
);
|
||
|
|
const perPositionHeight = when.defaultValue(options.perPositionHeight, false);
|
||
|
|
const perPositionHeightExtrude =
|
||
|
|
perPositionHeight && when.defined(options.extrudedHeight);
|
||
|
|
const arcType = when.defaultValue(options.arcType, ArcType.ArcType.GEODESIC);
|
||
|
|
|
||
|
|
let height = when.defaultValue(options.height, 0.0);
|
||
|
|
let extrudedHeight = when.defaultValue(options.extrudedHeight, height);
|
||
|
|
|
||
|
|
if (!perPositionHeightExtrude) {
|
||
|
|
const h = Math.max(height, extrudedHeight);
|
||
|
|
extrudedHeight = Math.min(height, extrudedHeight);
|
||
|
|
height = h;
|
||
|
|
}
|
||
|
|
|
||
|
|
this._ellipsoid = Matrix2.Ellipsoid.clone(ellipsoid);
|
||
|
|
this._granularity = granularity;
|
||
|
|
this._height = height;
|
||
|
|
this._extrudedHeight = extrudedHeight;
|
||
|
|
this._arcType = arcType;
|
||
|
|
this._polygonHierarchy = polygonHierarchy;
|
||
|
|
this._perPositionHeight = perPositionHeight;
|
||
|
|
this._perPositionHeightExtrude = perPositionHeightExtrude;
|
||
|
|
this._offsetAttribute = options.offsetAttribute;
|
||
|
|
this._workerName = "createPolygonOutlineGeometry";
|
||
|
|
|
||
|
|
/**
|
||
|
|
* The number of elements used to pack the object into an array.
|
||
|
|
* @type {Number}
|
||
|
|
*/
|
||
|
|
this.packedLength =
|
||
|
|
PolygonGeometryLibrary.PolygonGeometryLibrary.computeHierarchyPackedLength(polygonHierarchy) +
|
||
|
|
Matrix2.Ellipsoid.packedLength +
|
||
|
|
8;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Stores the provided instance into the provided array.
|
||
|
|
*
|
||
|
|
* @param {PolygonOutlineGeometry} value The value to pack.
|
||
|
|
* @param {Number[]} array The array to pack into.
|
||
|
|
* @param {Number} [startingIndex=0] The index into the array at which to start packing the elements.
|
||
|
|
*
|
||
|
|
* @returns {Number[]} The array that was packed into
|
||
|
|
*/
|
||
|
|
PolygonOutlineGeometry.pack = function (value, array, startingIndex) {
|
||
|
|
//>>includeStart('debug', pragmas.debug);
|
||
|
|
RuntimeError.Check.typeOf.object("value", value);
|
||
|
|
RuntimeError.Check.defined("array", array);
|
||
|
|
//>>includeEnd('debug');
|
||
|
|
|
||
|
|
startingIndex = when.defaultValue(startingIndex, 0);
|
||
|
|
|
||
|
|
startingIndex = PolygonGeometryLibrary.PolygonGeometryLibrary.packPolygonHierarchy(
|
||
|
|
value._polygonHierarchy,
|
||
|
|
array,
|
||
|
|
startingIndex
|
||
|
|
);
|
||
|
|
|
||
|
|
Matrix2.Ellipsoid.pack(value._ellipsoid, array, startingIndex);
|
||
|
|
startingIndex += Matrix2.Ellipsoid.packedLength;
|
||
|
|
|
||
|
|
array[startingIndex++] = value._height;
|
||
|
|
array[startingIndex++] = value._extrudedHeight;
|
||
|
|
array[startingIndex++] = value._granularity;
|
||
|
|
array[startingIndex++] = value._perPositionHeightExtrude ? 1.0 : 0.0;
|
||
|
|
array[startingIndex++] = value._perPositionHeight ? 1.0 : 0.0;
|
||
|
|
array[startingIndex++] = value._arcType;
|
||
|
|
array[startingIndex++] = when.defaultValue(value._offsetAttribute, -1);
|
||
|
|
array[startingIndex] = value.packedLength;
|
||
|
|
|
||
|
|
return array;
|
||
|
|
};
|
||
|
|
|
||
|
|
const scratchEllipsoid = Matrix2.Ellipsoid.clone(Matrix2.Ellipsoid.UNIT_SPHERE);
|
||
|
|
const dummyOptions = {
|
||
|
|
polygonHierarchy: {},
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Retrieves an instance from a packed array.
|
||
|
|
*
|
||
|
|
* @param {Number[]} array The packed array.
|
||
|
|
* @param {Number} [startingIndex=0] The starting index of the element to be unpacked.
|
||
|
|
* @param {PolygonOutlineGeometry} [result] The object into which to store the result.
|
||
|
|
* @returns {PolygonOutlineGeometry} The modified result parameter or a new PolygonOutlineGeometry instance if one was not provided.
|
||
|
|
*/
|
||
|
|
PolygonOutlineGeometry.unpack = function (array, startingIndex, result) {
|
||
|
|
//>>includeStart('debug', pragmas.debug);
|
||
|
|
RuntimeError.Check.defined("array", array);
|
||
|
|
//>>includeEnd('debug');
|
||
|
|
|
||
|
|
startingIndex = when.defaultValue(startingIndex, 0);
|
||
|
|
|
||
|
|
const polygonHierarchy = PolygonGeometryLibrary.PolygonGeometryLibrary.unpackPolygonHierarchy(
|
||
|
|
array,
|
||
|
|
startingIndex
|
||
|
|
);
|
||
|
|
startingIndex = polygonHierarchy.startingIndex;
|
||
|
|
delete polygonHierarchy.startingIndex;
|
||
|
|
|
||
|
|
const ellipsoid = Matrix2.Ellipsoid.unpack(array, startingIndex, scratchEllipsoid);
|
||
|
|
startingIndex += Matrix2.Ellipsoid.packedLength;
|
||
|
|
|
||
|
|
const height = array[startingIndex++];
|
||
|
|
const extrudedHeight = array[startingIndex++];
|
||
|
|
const granularity = array[startingIndex++];
|
||
|
|
const perPositionHeightExtrude = array[startingIndex++] === 1.0;
|
||
|
|
const perPositionHeight = array[startingIndex++] === 1.0;
|
||
|
|
const arcType = array[startingIndex++];
|
||
|
|
const offsetAttribute = array[startingIndex++];
|
||
|
|
const packedLength = array[startingIndex];
|
||
|
|
|
||
|
|
if (!when.defined(result)) {
|
||
|
|
result = new PolygonOutlineGeometry(dummyOptions);
|
||
|
|
}
|
||
|
|
|
||
|
|
result._polygonHierarchy = polygonHierarchy;
|
||
|
|
result._ellipsoid = Matrix2.Ellipsoid.clone(ellipsoid, result._ellipsoid);
|
||
|
|
result._height = height;
|
||
|
|
result._extrudedHeight = extrudedHeight;
|
||
|
|
result._granularity = granularity;
|
||
|
|
result._perPositionHeight = perPositionHeight;
|
||
|
|
result._perPositionHeightExtrude = perPositionHeightExtrude;
|
||
|
|
result._arcType = arcType;
|
||
|
|
result._offsetAttribute =
|
||
|
|
offsetAttribute === -1 ? undefined : offsetAttribute;
|
||
|
|
result.packedLength = packedLength;
|
||
|
|
|
||
|
|
return result;
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* A description of a polygon outline from an array of positions.
|
||
|
|
*
|
||
|
|
* @param {Object} options Object with the following properties:
|
||
|
|
* @param {Cartesian3[]} options.positions An array of positions that defined the corner points of the polygon.
|
||
|
|
* @param {Number} [options.height=0.0] The height of the polygon.
|
||
|
|
* @param {Number} [options.extrudedHeight] The height of the polygon extrusion.
|
||
|
|
* @param {Ellipsoid} [options.ellipsoid=Ellipsoid.WGS84] The ellipsoid to be used as a reference.
|
||
|
|
* @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.
|
||
|
|
* @param {Boolean} [options.perPositionHeight=false] Use the height of options.positions for each position instead of using options.height to determine the height.
|
||
|
|
* @param {ArcType} [options.arcType=ArcType.GEODESIC] The type of path the outline must follow. Valid options are {@link LinkType.GEODESIC} and {@link ArcType.RHUMB}.
|
||
|
|
* @returns {PolygonOutlineGeometry}
|
||
|
|
*
|
||
|
|
*
|
||
|
|
* @example
|
||
|
|
* // create a polygon from points
|
||
|
|
* const polygon = Cesium.PolygonOutlineGeometry.fromPositions({
|
||
|
|
* positions : Cesium.Cartesian3.fromDegreesArray([
|
||
|
|
* -72.0, 40.0,
|
||
|
|
* -70.0, 35.0,
|
||
|
|
* -75.0, 30.0,
|
||
|
|
* -70.0, 30.0,
|
||
|
|
* -68.0, 40.0
|
||
|
|
* ])
|
||
|
|
* });
|
||
|
|
* const geometry = Cesium.PolygonOutlineGeometry.createGeometry(polygon);
|
||
|
|
*
|
||
|
|
* @see PolygonOutlineGeometry#createGeometry
|
||
|
|
*/
|
||
|
|
PolygonOutlineGeometry.fromPositions = function (options) {
|
||
|
|
options = when.defaultValue(options, when.defaultValue.EMPTY_OBJECT);
|
||
|
|
|
||
|
|
//>>includeStart('debug', pragmas.debug);
|
||
|
|
RuntimeError.Check.defined("options.positions", options.positions);
|
||
|
|
//>>includeEnd('debug');
|
||
|
|
|
||
|
|
const newOptions = {
|
||
|
|
polygonHierarchy: {
|
||
|
|
positions: options.positions,
|
||
|
|
},
|
||
|
|
height: options.height,
|
||
|
|
extrudedHeight: options.extrudedHeight,
|
||
|
|
ellipsoid: options.ellipsoid,
|
||
|
|
granularity: options.granularity,
|
||
|
|
perPositionHeight: options.perPositionHeight,
|
||
|
|
arcType: options.arcType,
|
||
|
|
offsetAttribute: options.offsetAttribute,
|
||
|
|
};
|
||
|
|
return new PolygonOutlineGeometry(newOptions);
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Computes the geometric representation of a polygon outline, including its vertices, indices, and a bounding sphere.
|
||
|
|
*
|
||
|
|
* @param {PolygonOutlineGeometry} polygonGeometry A description of the polygon outline.
|
||
|
|
* @returns {Geometry|undefined} The computed vertices and indices.
|
||
|
|
*/
|
||
|
|
PolygonOutlineGeometry.createGeometry = function (polygonGeometry) {
|
||
|
|
const ellipsoid = polygonGeometry._ellipsoid;
|
||
|
|
const granularity = polygonGeometry._granularity;
|
||
|
|
const polygonHierarchy = polygonGeometry._polygonHierarchy;
|
||
|
|
const perPositionHeight = polygonGeometry._perPositionHeight;
|
||
|
|
const arcType = polygonGeometry._arcType;
|
||
|
|
|
||
|
|
const polygons = PolygonGeometryLibrary.PolygonGeometryLibrary.polygonOutlinesFromHierarchy(
|
||
|
|
polygonHierarchy,
|
||
|
|
!perPositionHeight,
|
||
|
|
ellipsoid
|
||
|
|
);
|
||
|
|
|
||
|
|
if (polygons.length === 0) {
|
||
|
|
return undefined;
|
||
|
|
}
|
||
|
|
|
||
|
|
let geometryInstance;
|
||
|
|
const geometries = [];
|
||
|
|
const minDistance = ComponentDatatype.CesiumMath.chordLength(
|
||
|
|
granularity,
|
||
|
|
ellipsoid.maximumRadius
|
||
|
|
);
|
||
|
|
|
||
|
|
const height = polygonGeometry._height;
|
||
|
|
const extrudedHeight = polygonGeometry._extrudedHeight;
|
||
|
|
const extrude =
|
||
|
|
polygonGeometry._perPositionHeightExtrude ||
|
||
|
|
!ComponentDatatype.CesiumMath.equalsEpsilon(height, extrudedHeight, 0, ComponentDatatype.CesiumMath.EPSILON2);
|
||
|
|
let offsetValue;
|
||
|
|
let i;
|
||
|
|
if (extrude) {
|
||
|
|
for (i = 0; i < polygons.length; i++) {
|
||
|
|
geometryInstance = createGeometryFromPositionsExtruded(
|
||
|
|
ellipsoid,
|
||
|
|
polygons[i],
|
||
|
|
minDistance,
|
||
|
|
perPositionHeight,
|
||
|
|
arcType
|
||
|
|
);
|
||
|
|
geometryInstance.geometry = PolygonGeometryLibrary.PolygonGeometryLibrary.scaleToGeodeticHeightExtruded(
|
||
|
|
geometryInstance.geometry,
|
||
|
|
height,
|
||
|
|
extrudedHeight,
|
||
|
|
ellipsoid,
|
||
|
|
perPositionHeight
|
||
|
|
);
|
||
|
|
if (when.defined(polygonGeometry._offsetAttribute)) {
|
||
|
|
const size =
|
||
|
|
geometryInstance.geometry.attributes.position.values.length / 3;
|
||
|
|
let offsetAttribute = new Uint8Array(size);
|
||
|
|
if (polygonGeometry._offsetAttribute === GeometryOffsetAttribute.GeometryOffsetAttribute.TOP) {
|
||
|
|
offsetAttribute = GeometryOffsetAttribute.arrayFill(offsetAttribute, 1, 0, size / 2);
|
||
|
|
} else {
|
||
|
|
offsetValue =
|
||
|
|
polygonGeometry._offsetAttribute === GeometryOffsetAttribute.GeometryOffsetAttribute.NONE
|
||
|
|
? 0
|
||
|
|
: 1;
|
||
|
|
offsetAttribute = GeometryOffsetAttribute.arrayFill(offsetAttribute, offsetValue);
|
||
|
|
}
|
||
|
|
|
||
|
|
geometryInstance.geometry.attributes.applyOffset = new GeometryAttribute.GeometryAttribute(
|
||
|
|
{
|
||
|
|
componentDatatype: ComponentDatatype.ComponentDatatype.UNSIGNED_BYTE,
|
||
|
|
componentsPerAttribute: 1,
|
||
|
|
values: offsetAttribute,
|
||
|
|
}
|
||
|
|
);
|
||
|
|
}
|
||
|
|
geometries.push(geometryInstance);
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
for (i = 0; i < polygons.length; i++) {
|
||
|
|
geometryInstance = createGeometryFromPositions(
|
||
|
|
ellipsoid,
|
||
|
|
polygons[i],
|
||
|
|
minDistance,
|
||
|
|
perPositionHeight,
|
||
|
|
arcType
|
||
|
|
);
|
||
|
|
geometryInstance.geometry.attributes.position.values = PolygonPipeline.PolygonPipeline.scaleToGeodeticHeight(
|
||
|
|
geometryInstance.geometry.attributes.position.values,
|
||
|
|
height,
|
||
|
|
ellipsoid,
|
||
|
|
!perPositionHeight
|
||
|
|
);
|
||
|
|
|
||
|
|
if (when.defined(polygonGeometry._offsetAttribute)) {
|
||
|
|
const length =
|
||
|
|
geometryInstance.geometry.attributes.position.values.length;
|
||
|
|
const applyOffset = new Uint8Array(length / 3);
|
||
|
|
offsetValue =
|
||
|
|
polygonGeometry._offsetAttribute === GeometryOffsetAttribute.GeometryOffsetAttribute.NONE
|
||
|
|
? 0
|
||
|
|
: 1;
|
||
|
|
GeometryOffsetAttribute.arrayFill(applyOffset, offsetValue);
|
||
|
|
geometryInstance.geometry.attributes.applyOffset = new GeometryAttribute.GeometryAttribute(
|
||
|
|
{
|
||
|
|
componentDatatype: ComponentDatatype.ComponentDatatype.UNSIGNED_BYTE,
|
||
|
|
componentsPerAttribute: 1,
|
||
|
|
values: applyOffset,
|
||
|
|
}
|
||
|
|
);
|
||
|
|
}
|
||
|
|
|
||
|
|
geometries.push(geometryInstance);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
const geometry = GeometryPipeline.GeometryPipeline.combineInstances(geometries)[0];
|
||
|
|
const boundingSphere = Transforms.BoundingSphere.fromVertices(
|
||
|
|
geometry.attributes.position.values
|
||
|
|
);
|
||
|
|
|
||
|
|
return new GeometryAttribute.Geometry({
|
||
|
|
attributes: geometry.attributes,
|
||
|
|
indices: geometry.indices,
|
||
|
|
primitiveType: geometry.primitiveType,
|
||
|
|
boundingSphere: boundingSphere,
|
||
|
|
offsetAttribute: polygonGeometry._offsetAttribute,
|
||
|
|
});
|
||
|
|
};
|
||
|
|
|
||
|
|
function createPolygonOutlineGeometry(polygonGeometry, offset) {
|
||
|
|
if (when.defined(offset)) {
|
||
|
|
polygonGeometry = PolygonOutlineGeometry.unpack(polygonGeometry, offset);
|
||
|
|
}
|
||
|
|
polygonGeometry._ellipsoid = Matrix2.Ellipsoid.clone(polygonGeometry._ellipsoid);
|
||
|
|
return PolygonOutlineGeometry.createGeometry(polygonGeometry);
|
||
|
|
}
|
||
|
|
|
||
|
|
return createPolygonOutlineGeometry;
|
||
|
|
|
||
|
|
}));
|
||
|
|
//# sourceMappingURL=createPolygonOutlineGeometry.js.map
|