477 lines
16 KiB
JavaScript
477 lines
16 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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CornerType_default,
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PolylineVolumeGeometryLibrary_default
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} from "./chunk-XWML5Y7N.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 {
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Quaternion_default
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} from "./chunk-I5TDPPC4.js";
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import {
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Cartesian3_default,
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Matrix3_default
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} from "./chunk-C5CE4OG6.js";
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import {
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Math_default
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} from "./chunk-4PHPQRSH.js";
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import {
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defined_default
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} from "./chunk-BDUJXBVF.js";
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// packages/engine/Source/Core/CorridorGeometryLibrary.js
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var CorridorGeometryLibrary = {};
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var scratch1 = new Cartesian3_default();
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var scratch2 = new Cartesian3_default();
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var scratch3 = new Cartesian3_default();
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var scratch4 = new Cartesian3_default();
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var scaleArray2 = [new Cartesian3_default(), new Cartesian3_default()];
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var cartesian1 = new Cartesian3_default();
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var cartesian2 = new Cartesian3_default();
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var cartesian3 = new Cartesian3_default();
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var cartesian4 = new Cartesian3_default();
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var cartesian5 = new Cartesian3_default();
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var cartesian6 = new Cartesian3_default();
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var cartesian7 = new Cartesian3_default();
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var cartesian8 = new Cartesian3_default();
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var cartesian9 = new Cartesian3_default();
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var cartesian10 = new Cartesian3_default();
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var quaterion = new Quaternion_default();
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var rotMatrix = new Matrix3_default();
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function computeRoundCorner(cornerPoint, startPoint, endPoint, cornerType, leftIsOutside) {
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const angle = Cartesian3_default.angleBetween(
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Cartesian3_default.subtract(startPoint, cornerPoint, scratch1),
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Cartesian3_default.subtract(endPoint, cornerPoint, scratch2)
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);
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const granularity = cornerType === CornerType_default.BEVELED ? 1 : Math.ceil(angle / Math_default.toRadians(5)) + 1;
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const size = granularity * 3;
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const array = new Array(size);
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array[size - 3] = endPoint.x;
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array[size - 2] = endPoint.y;
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array[size - 1] = endPoint.z;
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let m;
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if (leftIsOutside) {
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m = Matrix3_default.fromQuaternion(
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Quaternion_default.fromAxisAngle(
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Cartesian3_default.negate(cornerPoint, scratch1),
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angle / granularity,
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quaterion
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),
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rotMatrix
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);
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} else {
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m = Matrix3_default.fromQuaternion(
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Quaternion_default.fromAxisAngle(cornerPoint, angle / granularity, quaterion),
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rotMatrix
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);
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}
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let index = 0;
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startPoint = Cartesian3_default.clone(startPoint, scratch1);
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for (let i = 0; i < granularity; i++) {
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startPoint = Matrix3_default.multiplyByVector(m, startPoint, startPoint);
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array[index++] = startPoint.x;
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array[index++] = startPoint.y;
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array[index++] = startPoint.z;
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}
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return array;
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}
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function addEndCaps(calculatedPositions) {
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let cornerPoint = cartesian1;
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let startPoint = cartesian2;
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let endPoint = cartesian3;
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let leftEdge = calculatedPositions[1];
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startPoint = Cartesian3_default.fromArray(
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calculatedPositions[1],
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leftEdge.length - 3,
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startPoint
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);
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endPoint = Cartesian3_default.fromArray(calculatedPositions[0], 0, endPoint);
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cornerPoint = Cartesian3_default.midpoint(startPoint, endPoint, cornerPoint);
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const firstEndCap = computeRoundCorner(
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cornerPoint,
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startPoint,
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endPoint,
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CornerType_default.ROUNDED,
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false
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);
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const length = calculatedPositions.length - 1;
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const rightEdge = calculatedPositions[length - 1];
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leftEdge = calculatedPositions[length];
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startPoint = Cartesian3_default.fromArray(
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rightEdge,
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rightEdge.length - 3,
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startPoint
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);
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endPoint = Cartesian3_default.fromArray(leftEdge, 0, endPoint);
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cornerPoint = Cartesian3_default.midpoint(startPoint, endPoint, cornerPoint);
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const lastEndCap = computeRoundCorner(
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cornerPoint,
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startPoint,
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endPoint,
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CornerType_default.ROUNDED,
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false
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);
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return [firstEndCap, lastEndCap];
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}
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function computeMiteredCorner(position, leftCornerDirection, lastPoint, leftIsOutside) {
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let cornerPoint = scratch1;
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if (leftIsOutside) {
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cornerPoint = Cartesian3_default.add(position, leftCornerDirection, cornerPoint);
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} else {
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leftCornerDirection = Cartesian3_default.negate(
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leftCornerDirection,
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leftCornerDirection
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);
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cornerPoint = Cartesian3_default.add(position, leftCornerDirection, cornerPoint);
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}
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return [
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cornerPoint.x,
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cornerPoint.y,
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cornerPoint.z,
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lastPoint.x,
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lastPoint.y,
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lastPoint.z
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];
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}
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function addShiftedPositions(positions, left, scalar, calculatedPositions) {
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const rightPositions = new Array(positions.length);
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const leftPositions = new Array(positions.length);
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const scaledLeft = Cartesian3_default.multiplyByScalar(left, scalar, scratch1);
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const scaledRight = Cartesian3_default.negate(scaledLeft, scratch2);
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let rightIndex = 0;
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let leftIndex = positions.length - 1;
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for (let i = 0; i < positions.length; i += 3) {
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const pos = Cartesian3_default.fromArray(positions, i, scratch3);
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const rightPos = Cartesian3_default.add(pos, scaledRight, scratch4);
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rightPositions[rightIndex++] = rightPos.x;
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rightPositions[rightIndex++] = rightPos.y;
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rightPositions[rightIndex++] = rightPos.z;
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const leftPos = Cartesian3_default.add(pos, scaledLeft, scratch4);
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leftPositions[leftIndex--] = leftPos.z;
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leftPositions[leftIndex--] = leftPos.y;
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leftPositions[leftIndex--] = leftPos.x;
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}
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calculatedPositions.push(rightPositions, leftPositions);
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return calculatedPositions;
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}
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CorridorGeometryLibrary.addAttribute = function(attribute, value, front, back) {
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const x = value.x;
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const y = value.y;
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const z = value.z;
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if (defined_default(front)) {
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attribute[front] = x;
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attribute[front + 1] = y;
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attribute[front + 2] = z;
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}
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if (defined_default(back)) {
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attribute[back] = z;
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attribute[back - 1] = y;
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attribute[back - 2] = x;
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}
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};
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var scratchForwardProjection = new Cartesian3_default();
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var scratchBackwardProjection = new Cartesian3_default();
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CorridorGeometryLibrary.computePositions = function(params) {
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const granularity = params.granularity;
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const positions = params.positions;
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const ellipsoid = params.ellipsoid;
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const width = params.width / 2;
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const cornerType = params.cornerType;
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const saveAttributes = params.saveAttributes;
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let normal = cartesian1;
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let forward = cartesian2;
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let backward = cartesian3;
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let left = cartesian4;
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let cornerDirection = cartesian5;
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let startPoint = cartesian6;
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let previousPos = cartesian7;
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let rightPos = cartesian8;
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let leftPos = cartesian9;
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let center = cartesian10;
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let calculatedPositions = [];
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const calculatedLefts = saveAttributes ? [] : void 0;
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const calculatedNormals = saveAttributes ? [] : void 0;
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let position = positions[0];
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let nextPosition = positions[1];
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forward = Cartesian3_default.normalize(
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Cartesian3_default.subtract(nextPosition, position, forward),
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forward
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);
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normal = ellipsoid.geodeticSurfaceNormal(position, normal);
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left = Cartesian3_default.normalize(Cartesian3_default.cross(normal, forward, left), left);
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if (saveAttributes) {
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calculatedLefts.push(left.x, left.y, left.z);
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calculatedNormals.push(normal.x, normal.y, normal.z);
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}
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previousPos = Cartesian3_default.clone(position, previousPos);
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position = nextPosition;
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backward = Cartesian3_default.negate(forward, backward);
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let subdividedPositions;
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const corners = [];
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let i;
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const length = positions.length;
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for (i = 1; i < length - 1; i++) {
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normal = ellipsoid.geodeticSurfaceNormal(position, normal);
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nextPosition = positions[i + 1];
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forward = Cartesian3_default.normalize(
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Cartesian3_default.subtract(nextPosition, position, forward),
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forward
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);
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cornerDirection = Cartesian3_default.normalize(
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Cartesian3_default.add(forward, backward, cornerDirection),
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cornerDirection
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);
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const forwardProjection = Cartesian3_default.multiplyByScalar(
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normal,
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Cartesian3_default.dot(forward, normal),
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scratchForwardProjection
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);
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Cartesian3_default.subtract(forward, forwardProjection, forwardProjection);
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Cartesian3_default.normalize(forwardProjection, forwardProjection);
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const backwardProjection = Cartesian3_default.multiplyByScalar(
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normal,
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Cartesian3_default.dot(backward, normal),
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scratchBackwardProjection
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);
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Cartesian3_default.subtract(backward, backwardProjection, backwardProjection);
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Cartesian3_default.normalize(backwardProjection, backwardProjection);
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const doCorner = !Math_default.equalsEpsilon(
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Math.abs(Cartesian3_default.dot(forwardProjection, backwardProjection)),
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1,
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Math_default.EPSILON7
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);
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if (doCorner) {
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cornerDirection = Cartesian3_default.cross(
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cornerDirection,
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normal,
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cornerDirection
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);
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cornerDirection = Cartesian3_default.cross(
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normal,
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cornerDirection,
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cornerDirection
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);
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cornerDirection = Cartesian3_default.normalize(cornerDirection, cornerDirection);
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const scalar = width / Math.max(
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0.25,
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Cartesian3_default.magnitude(
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Cartesian3_default.cross(cornerDirection, backward, scratch1)
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)
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);
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const leftIsOutside = PolylineVolumeGeometryLibrary_default.angleIsGreaterThanPi(
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forward,
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backward,
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position,
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ellipsoid
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);
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cornerDirection = Cartesian3_default.multiplyByScalar(
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cornerDirection,
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scalar,
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cornerDirection
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);
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if (leftIsOutside) {
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rightPos = Cartesian3_default.add(position, cornerDirection, rightPos);
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center = Cartesian3_default.add(
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rightPos,
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Cartesian3_default.multiplyByScalar(left, width, center),
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center
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);
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leftPos = Cartesian3_default.add(
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rightPos,
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Cartesian3_default.multiplyByScalar(left, width * 2, leftPos),
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leftPos
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);
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scaleArray2[0] = Cartesian3_default.clone(previousPos, scaleArray2[0]);
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scaleArray2[1] = Cartesian3_default.clone(center, scaleArray2[1]);
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subdividedPositions = PolylinePipeline_default.generateArc({
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positions: scaleArray2,
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granularity,
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ellipsoid
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});
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calculatedPositions = addShiftedPositions(
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subdividedPositions,
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left,
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width,
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calculatedPositions
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);
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if (saveAttributes) {
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calculatedLefts.push(left.x, left.y, left.z);
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calculatedNormals.push(normal.x, normal.y, normal.z);
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}
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startPoint = Cartesian3_default.clone(leftPos, startPoint);
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left = Cartesian3_default.normalize(
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Cartesian3_default.cross(normal, forward, left),
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left
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);
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leftPos = Cartesian3_default.add(
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rightPos,
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Cartesian3_default.multiplyByScalar(left, width * 2, leftPos),
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leftPos
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);
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previousPos = Cartesian3_default.add(
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rightPos,
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Cartesian3_default.multiplyByScalar(left, width, previousPos),
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previousPos
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);
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if (cornerType === CornerType_default.ROUNDED || cornerType === CornerType_default.BEVELED) {
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corners.push({
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leftPositions: computeRoundCorner(
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rightPos,
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startPoint,
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leftPos,
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cornerType,
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leftIsOutside
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)
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});
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} else {
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corners.push({
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leftPositions: computeMiteredCorner(
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position,
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Cartesian3_default.negate(cornerDirection, cornerDirection),
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leftPos,
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leftIsOutside
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)
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});
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}
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} else {
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leftPos = Cartesian3_default.add(position, cornerDirection, leftPos);
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center = Cartesian3_default.add(
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leftPos,
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Cartesian3_default.negate(
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Cartesian3_default.multiplyByScalar(left, width, center),
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center
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),
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center
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);
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rightPos = Cartesian3_default.add(
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leftPos,
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Cartesian3_default.negate(
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Cartesian3_default.multiplyByScalar(left, width * 2, rightPos),
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rightPos
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),
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rightPos
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);
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scaleArray2[0] = Cartesian3_default.clone(previousPos, scaleArray2[0]);
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scaleArray2[1] = Cartesian3_default.clone(center, scaleArray2[1]);
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subdividedPositions = PolylinePipeline_default.generateArc({
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positions: scaleArray2,
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granularity,
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ellipsoid
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});
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calculatedPositions = addShiftedPositions(
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subdividedPositions,
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left,
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width,
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calculatedPositions
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);
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if (saveAttributes) {
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calculatedLefts.push(left.x, left.y, left.z);
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calculatedNormals.push(normal.x, normal.y, normal.z);
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}
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startPoint = Cartesian3_default.clone(rightPos, startPoint);
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left = Cartesian3_default.normalize(
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Cartesian3_default.cross(normal, forward, left),
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left
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);
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rightPos = Cartesian3_default.add(
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leftPos,
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Cartesian3_default.negate(
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Cartesian3_default.multiplyByScalar(left, width * 2, rightPos),
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rightPos
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),
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rightPos
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);
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previousPos = Cartesian3_default.add(
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leftPos,
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Cartesian3_default.negate(
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Cartesian3_default.multiplyByScalar(left, width, previousPos),
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previousPos
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),
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previousPos
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);
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if (cornerType === CornerType_default.ROUNDED || cornerType === CornerType_default.BEVELED) {
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corners.push({
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rightPositions: computeRoundCorner(
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leftPos,
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startPoint,
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rightPos,
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cornerType,
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leftIsOutside
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)
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});
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} else {
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corners.push({
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rightPositions: computeMiteredCorner(
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position,
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cornerDirection,
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rightPos,
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leftIsOutside
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)
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});
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}
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}
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backward = Cartesian3_default.negate(forward, backward);
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}
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position = nextPosition;
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}
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normal = ellipsoid.geodeticSurfaceNormal(position, normal);
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scaleArray2[0] = Cartesian3_default.clone(previousPos, scaleArray2[0]);
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scaleArray2[1] = Cartesian3_default.clone(position, scaleArray2[1]);
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subdividedPositions = PolylinePipeline_default.generateArc({
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positions: scaleArray2,
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granularity,
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ellipsoid
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});
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calculatedPositions = addShiftedPositions(
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subdividedPositions,
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left,
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width,
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calculatedPositions
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);
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if (saveAttributes) {
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calculatedLefts.push(left.x, left.y, left.z);
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calculatedNormals.push(normal.x, normal.y, normal.z);
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}
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let endPositions;
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if (cornerType === CornerType_default.ROUNDED) {
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endPositions = addEndCaps(calculatedPositions);
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}
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return {
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positions: calculatedPositions,
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corners,
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lefts: calculatedLefts,
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normals: calculatedNormals,
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endPositions
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};
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};
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var CorridorGeometryLibrary_default = CorridorGeometryLibrary;
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export {
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CorridorGeometryLibrary_default
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};
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