495 lines
17 KiB
JavaScript
495 lines
17 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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Color_default
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} from "./chunk-KPY4F4BW.js";
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import {
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ArcType_default
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} from "./chunk-YLZTCEBJ.js";
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import {
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PolylinePipeline_default
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} from "./chunk-ZWPIM77Q.js";
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import "./chunk-2CSEEWHN.js";
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import {
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VertexFormat_default
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} from "./chunk-4KIUON73.js";
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import {
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arrayRemoveDuplicates_default
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} from "./chunk-V7JB576Q.js";
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import "./chunk-CYAJYEKW.js";
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import "./chunk-G7CJQKKD.js";
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import "./chunk-FOZQIHZK.js";
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import {
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IndexDatatype_default
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} from "./chunk-WWP3I7R5.js";
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import {
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GeometryAttributes_default
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} from "./chunk-RL73GOEF.js";
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import {
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GeometryAttribute_default,
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GeometryType_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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BoundingSphere_default
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} from "./chunk-NI2R52QD.js";
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import "./chunk-I5TDPPC4.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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Cartesian3_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 "./chunk-PEABJLCK.js";
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import "./chunk-WFICTTOE.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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DeveloperError_default
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} from "./chunk-U4IMCOF5.js";
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import {
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defined_default
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} from "./chunk-BDUJXBVF.js";
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// packages/engine/Source/Core/PolylineGeometry.js
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var scratchInterpolateColorsArray = [];
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function interpolateColors(p0, p1, color0, color1, numPoints) {
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const colors = scratchInterpolateColorsArray;
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colors.length = numPoints;
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let i;
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const r0 = color0.red;
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const g0 = color0.green;
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const b0 = color0.blue;
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const a0 = color0.alpha;
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const r1 = color1.red;
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const g1 = color1.green;
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const b1 = color1.blue;
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const a1 = color1.alpha;
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if (Color_default.equals(color0, color1)) {
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for (i = 0; i < numPoints; i++) {
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colors[i] = Color_default.clone(color0);
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}
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return colors;
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}
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const redPerVertex = (r1 - r0) / numPoints;
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const greenPerVertex = (g1 - g0) / numPoints;
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const bluePerVertex = (b1 - b0) / numPoints;
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const alphaPerVertex = (a1 - a0) / numPoints;
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for (i = 0; i < numPoints; i++) {
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colors[i] = new Color_default(
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r0 + i * redPerVertex,
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g0 + i * greenPerVertex,
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b0 + i * bluePerVertex,
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a0 + i * alphaPerVertex
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);
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}
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return colors;
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}
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function PolylineGeometry(options) {
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options = defaultValue_default(options, defaultValue_default.EMPTY_OBJECT);
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const positions = options.positions;
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const colors = options.colors;
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const width = defaultValue_default(options.width, 1);
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const colorsPerVertex = defaultValue_default(options.colorsPerVertex, false);
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if (!defined_default(positions) || positions.length < 2) {
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throw new DeveloperError_default("At least two positions are required.");
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}
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if (typeof width !== "number") {
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throw new DeveloperError_default("width must be a number");
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}
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if (defined_default(colors) && (colorsPerVertex && colors.length < positions.length || !colorsPerVertex && colors.length < positions.length - 1)) {
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throw new DeveloperError_default("colors has an invalid length.");
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}
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this._positions = positions;
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this._colors = colors;
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this._width = width;
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this._colorsPerVertex = colorsPerVertex;
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this._vertexFormat = VertexFormat_default.clone(
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defaultValue_default(options.vertexFormat, VertexFormat_default.DEFAULT)
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);
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this._arcType = defaultValue_default(options.arcType, ArcType_default.GEODESIC);
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this._granularity = defaultValue_default(
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options.granularity,
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Math_default.RADIANS_PER_DEGREE
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);
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this._ellipsoid = Ellipsoid_default.clone(
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defaultValue_default(options.ellipsoid, Ellipsoid_default.WGS84)
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);
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this._workerName = "createPolylineGeometry";
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let numComponents = 1 + positions.length * Cartesian3_default.packedLength;
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numComponents += defined_default(colors) ? 1 + colors.length * Color_default.packedLength : 1;
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this.packedLength = numComponents + Ellipsoid_default.packedLength + VertexFormat_default.packedLength + 4;
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}
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PolylineGeometry.pack = function(value, array, startingIndex) {
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if (!defined_default(value)) {
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throw new DeveloperError_default("value is required");
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}
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if (!defined_default(array)) {
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throw new DeveloperError_default("array is required");
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}
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startingIndex = defaultValue_default(startingIndex, 0);
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let i;
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const positions = value._positions;
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let length = positions.length;
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array[startingIndex++] = length;
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for (i = 0; i < length; ++i, startingIndex += Cartesian3_default.packedLength) {
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Cartesian3_default.pack(positions[i], array, startingIndex);
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}
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const colors = value._colors;
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length = defined_default(colors) ? colors.length : 0;
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array[startingIndex++] = length;
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for (i = 0; i < length; ++i, startingIndex += Color_default.packedLength) {
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Color_default.pack(colors[i], array, startingIndex);
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}
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Ellipsoid_default.pack(value._ellipsoid, array, startingIndex);
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startingIndex += Ellipsoid_default.packedLength;
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VertexFormat_default.pack(value._vertexFormat, array, startingIndex);
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startingIndex += VertexFormat_default.packedLength;
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array[startingIndex++] = value._width;
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array[startingIndex++] = value._colorsPerVertex ? 1 : 0;
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array[startingIndex++] = value._arcType;
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array[startingIndex] = value._granularity;
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return array;
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};
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var scratchEllipsoid = Ellipsoid_default.clone(Ellipsoid_default.UNIT_SPHERE);
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var scratchVertexFormat = new VertexFormat_default();
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var scratchOptions = {
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positions: void 0,
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colors: void 0,
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ellipsoid: scratchEllipsoid,
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vertexFormat: scratchVertexFormat,
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width: void 0,
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colorsPerVertex: void 0,
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arcType: void 0,
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granularity: void 0
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};
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PolylineGeometry.unpack = function(array, startingIndex, result) {
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if (!defined_default(array)) {
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throw new DeveloperError_default("array is required");
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}
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startingIndex = defaultValue_default(startingIndex, 0);
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let i;
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let length = array[startingIndex++];
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const positions = new Array(length);
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for (i = 0; i < length; ++i, startingIndex += Cartesian3_default.packedLength) {
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positions[i] = Cartesian3_default.unpack(array, startingIndex);
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}
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length = array[startingIndex++];
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const colors = length > 0 ? new Array(length) : void 0;
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for (i = 0; i < length; ++i, startingIndex += Color_default.packedLength) {
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colors[i] = Color_default.unpack(array, startingIndex);
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}
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const ellipsoid = Ellipsoid_default.unpack(array, startingIndex, scratchEllipsoid);
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startingIndex += Ellipsoid_default.packedLength;
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const vertexFormat = VertexFormat_default.unpack(
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array,
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startingIndex,
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scratchVertexFormat
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);
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startingIndex += VertexFormat_default.packedLength;
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const width = array[startingIndex++];
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const colorsPerVertex = array[startingIndex++] === 1;
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const arcType = array[startingIndex++];
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const granularity = array[startingIndex];
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if (!defined_default(result)) {
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scratchOptions.positions = positions;
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scratchOptions.colors = colors;
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scratchOptions.width = width;
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scratchOptions.colorsPerVertex = colorsPerVertex;
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scratchOptions.arcType = arcType;
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scratchOptions.granularity = granularity;
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return new PolylineGeometry(scratchOptions);
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}
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result._positions = positions;
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result._colors = colors;
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result._ellipsoid = Ellipsoid_default.clone(ellipsoid, result._ellipsoid);
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result._vertexFormat = VertexFormat_default.clone(vertexFormat, result._vertexFormat);
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result._width = width;
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result._colorsPerVertex = colorsPerVertex;
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result._arcType = arcType;
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result._granularity = granularity;
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return result;
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};
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var scratchCartesian3 = new Cartesian3_default();
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var scratchPosition = new Cartesian3_default();
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var scratchPrevPosition = new Cartesian3_default();
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var scratchNextPosition = new Cartesian3_default();
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PolylineGeometry.createGeometry = function(polylineGeometry) {
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const width = polylineGeometry._width;
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const vertexFormat = polylineGeometry._vertexFormat;
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let colors = polylineGeometry._colors;
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const colorsPerVertex = polylineGeometry._colorsPerVertex;
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const arcType = polylineGeometry._arcType;
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const granularity = polylineGeometry._granularity;
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const ellipsoid = polylineGeometry._ellipsoid;
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let i;
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let j;
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let k;
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const removedIndices = [];
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let positions = arrayRemoveDuplicates_default(
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polylineGeometry._positions,
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Cartesian3_default.equalsEpsilon,
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false,
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removedIndices
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);
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if (defined_default(colors) && removedIndices.length > 0) {
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let removedArrayIndex = 0;
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let nextRemovedIndex = removedIndices[0];
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colors = colors.filter(function(color, index2) {
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let remove = false;
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if (colorsPerVertex) {
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remove = index2 === nextRemovedIndex || index2 === 0 && nextRemovedIndex === 1;
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} else {
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remove = index2 + 1 === nextRemovedIndex;
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}
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if (remove) {
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removedArrayIndex++;
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nextRemovedIndex = removedIndices[removedArrayIndex];
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return false;
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}
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return true;
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});
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}
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let positionsLength = positions.length;
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if (positionsLength < 2 || width <= 0) {
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return void 0;
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}
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if (arcType === ArcType_default.GEODESIC || arcType === ArcType_default.RHUMB) {
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let subdivisionSize;
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let numberOfPointsFunction;
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if (arcType === ArcType_default.GEODESIC) {
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subdivisionSize = Math_default.chordLength(
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granularity,
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ellipsoid.maximumRadius
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);
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numberOfPointsFunction = PolylinePipeline_default.numberOfPoints;
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} else {
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subdivisionSize = granularity;
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numberOfPointsFunction = PolylinePipeline_default.numberOfPointsRhumbLine;
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}
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const heights = PolylinePipeline_default.extractHeights(positions, ellipsoid);
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if (defined_default(colors)) {
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let colorLength = 1;
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for (i = 0; i < positionsLength - 1; ++i) {
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colorLength += numberOfPointsFunction(
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positions[i],
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positions[i + 1],
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subdivisionSize
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);
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}
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const newColors = new Array(colorLength);
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let newColorIndex = 0;
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for (i = 0; i < positionsLength - 1; ++i) {
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const p0 = positions[i];
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const p1 = positions[i + 1];
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const c0 = colors[i];
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const numColors = numberOfPointsFunction(p0, p1, subdivisionSize);
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if (colorsPerVertex && i < colorLength) {
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const c1 = colors[i + 1];
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const interpolatedColors = interpolateColors(
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p0,
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p1,
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c0,
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c1,
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numColors
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);
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const interpolatedColorsLength = interpolatedColors.length;
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for (j = 0; j < interpolatedColorsLength; ++j) {
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newColors[newColorIndex++] = interpolatedColors[j];
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}
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} else {
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for (j = 0; j < numColors; ++j) {
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newColors[newColorIndex++] = Color_default.clone(c0);
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}
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}
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}
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newColors[newColorIndex] = Color_default.clone(colors[colors.length - 1]);
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colors = newColors;
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scratchInterpolateColorsArray.length = 0;
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}
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if (arcType === ArcType_default.GEODESIC) {
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positions = PolylinePipeline_default.generateCartesianArc({
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positions,
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minDistance: subdivisionSize,
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ellipsoid,
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height: heights
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});
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} else {
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positions = PolylinePipeline_default.generateCartesianRhumbArc({
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positions,
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granularity: subdivisionSize,
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ellipsoid,
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height: heights
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});
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}
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}
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positionsLength = positions.length;
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const size = positionsLength * 4 - 4;
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const finalPositions = new Float64Array(size * 3);
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const prevPositions = new Float64Array(size * 3);
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const nextPositions = new Float64Array(size * 3);
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const expandAndWidth = new Float32Array(size * 2);
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const st = vertexFormat.st ? new Float32Array(size * 2) : void 0;
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const finalColors = defined_default(colors) ? new Uint8Array(size * 4) : void 0;
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let positionIndex = 0;
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let expandAndWidthIndex = 0;
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let stIndex = 0;
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let colorIndex = 0;
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let position;
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for (j = 0; j < positionsLength; ++j) {
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if (j === 0) {
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position = scratchCartesian3;
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Cartesian3_default.subtract(positions[0], positions[1], position);
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Cartesian3_default.add(positions[0], position, position);
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} else {
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position = positions[j - 1];
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}
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Cartesian3_default.clone(position, scratchPrevPosition);
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Cartesian3_default.clone(positions[j], scratchPosition);
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if (j === positionsLength - 1) {
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position = scratchCartesian3;
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Cartesian3_default.subtract(
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positions[positionsLength - 1],
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positions[positionsLength - 2],
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position
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);
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Cartesian3_default.add(positions[positionsLength - 1], position, position);
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} else {
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position = positions[j + 1];
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}
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Cartesian3_default.clone(position, scratchNextPosition);
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let color0, color1;
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if (defined_default(finalColors)) {
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if (j !== 0 && !colorsPerVertex) {
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color0 = colors[j - 1];
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} else {
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color0 = colors[j];
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}
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if (j !== positionsLength - 1) {
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color1 = colors[j];
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}
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}
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const startK = j === 0 ? 2 : 0;
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const endK = j === positionsLength - 1 ? 2 : 4;
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for (k = startK; k < endK; ++k) {
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Cartesian3_default.pack(scratchPosition, finalPositions, positionIndex);
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Cartesian3_default.pack(scratchPrevPosition, prevPositions, positionIndex);
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Cartesian3_default.pack(scratchNextPosition, nextPositions, positionIndex);
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positionIndex += 3;
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const direction = k - 2 < 0 ? -1 : 1;
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expandAndWidth[expandAndWidthIndex++] = 2 * (k % 2) - 1;
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expandAndWidth[expandAndWidthIndex++] = direction * width;
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if (vertexFormat.st) {
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st[stIndex++] = j / (positionsLength - 1);
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st[stIndex++] = Math.max(expandAndWidth[expandAndWidthIndex - 2], 0);
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}
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if (defined_default(finalColors)) {
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const color = k < 2 ? color0 : color1;
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finalColors[colorIndex++] = Color_default.floatToByte(color.red);
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finalColors[colorIndex++] = Color_default.floatToByte(color.green);
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finalColors[colorIndex++] = Color_default.floatToByte(color.blue);
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finalColors[colorIndex++] = Color_default.floatToByte(color.alpha);
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}
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}
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}
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const attributes = new GeometryAttributes_default();
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attributes.position = new GeometryAttribute_default({
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componentDatatype: ComponentDatatype_default.DOUBLE,
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componentsPerAttribute: 3,
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values: finalPositions
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});
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attributes.prevPosition = new GeometryAttribute_default({
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componentDatatype: ComponentDatatype_default.DOUBLE,
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componentsPerAttribute: 3,
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values: prevPositions
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});
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attributes.nextPosition = new GeometryAttribute_default({
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componentDatatype: ComponentDatatype_default.DOUBLE,
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componentsPerAttribute: 3,
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values: nextPositions
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});
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attributes.expandAndWidth = new GeometryAttribute_default({
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componentDatatype: ComponentDatatype_default.FLOAT,
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componentsPerAttribute: 2,
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values: expandAndWidth
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});
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if (vertexFormat.st) {
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attributes.st = new GeometryAttribute_default({
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componentDatatype: ComponentDatatype_default.FLOAT,
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componentsPerAttribute: 2,
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values: st
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});
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}
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if (defined_default(finalColors)) {
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attributes.color = new GeometryAttribute_default({
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componentDatatype: ComponentDatatype_default.UNSIGNED_BYTE,
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componentsPerAttribute: 4,
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values: finalColors,
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normalize: true
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});
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}
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const indices = IndexDatatype_default.createTypedArray(size, positionsLength * 6 - 6);
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let index = 0;
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let indicesIndex = 0;
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const length = positionsLength - 1;
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for (j = 0; j < length; ++j) {
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indices[indicesIndex++] = index;
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indices[indicesIndex++] = index + 2;
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indices[indicesIndex++] = index + 1;
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indices[indicesIndex++] = index + 1;
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indices[indicesIndex++] = index + 2;
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indices[indicesIndex++] = index + 3;
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index += 4;
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}
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return new Geometry_default({
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attributes,
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indices,
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primitiveType: PrimitiveType_default.TRIANGLES,
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boundingSphere: BoundingSphere_default.fromPoints(positions),
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geometryType: GeometryType_default.POLYLINES
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});
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};
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var PolylineGeometry_default = PolylineGeometry;
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// packages/engine/Source/Workers/createPolylineGeometry.js
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function createPolylineGeometry(polylineGeometry, offset) {
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if (defined_default(offset)) {
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polylineGeometry = PolylineGeometry_default.unpack(polylineGeometry, offset);
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|
}
|
|
polylineGeometry._ellipsoid = Ellipsoid_default.clone(polylineGeometry._ellipsoid);
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|
return PolylineGeometry_default.createGeometry(polylineGeometry);
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|
}
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var createPolylineGeometry_default = createPolylineGeometry;
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|
export {
|
|
createPolylineGeometry_default as default
|
|
};
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