Agriculture-front-end/public/Cesium/Workers/CorridorGeometryLibrary-8e7a2b1b.js
2023-04-16 22:33:44 +08:00

319 lines
18 KiB
JavaScript

/**
* Cesium - https://github.com/CesiumGS/cesium
*
* Copyright 2011-2020 Cesium Contributors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* Columbus View (Pat. Pend.)
*
* Portions licensed separately.
* See https://github.com/CesiumGS/cesium/blob/master/LICENSE.md for full licensing details.
*/
define(['exports', './when-8d13db60', './Math-61ede240', './Cartographic-f2a06374', './BoundingSphere-d018a565', './Transforms-f77c92da', './PolylineVolumeGeometryLibrary-44de161b', './PolylinePipeline-f937854b'], function (exports, when, _Math, Cartographic, BoundingSphere, Transforms, PolylineVolumeGeometryLibrary, PolylinePipeline) { 'use strict';
/**
* @private
*/
var CorridorGeometryLibrary = {};
var scratch1 = new Cartographic.Cartesian3();
var scratch2 = new Cartographic.Cartesian3();
var scratch3 = new Cartographic.Cartesian3();
var scratch4 = new Cartographic.Cartesian3();
var scaleArray2 = [new Cartographic.Cartesian3(), new Cartographic.Cartesian3()];
var cartesian1 = new Cartographic.Cartesian3();
var cartesian2 = new Cartographic.Cartesian3();
var cartesian3 = new Cartographic.Cartesian3();
var cartesian4 = new Cartographic.Cartesian3();
var cartesian5 = new Cartographic.Cartesian3();
var cartesian6 = new Cartographic.Cartesian3();
var cartesian7 = new Cartographic.Cartesian3();
var cartesian8 = new Cartographic.Cartesian3();
var cartesian9 = new Cartographic.Cartesian3();
var cartesian10 = new Cartographic.Cartesian3();
var quaterion = new Transforms.Quaternion();
var rotMatrix = new BoundingSphere.Matrix3();
function computeRoundCorner(cornerPoint, startPoint, endPoint, cornerType, leftIsOutside) {
var angle = Cartographic.Cartesian3.angleBetween(Cartographic.Cartesian3.subtract(startPoint, cornerPoint, scratch1), Cartographic.Cartesian3.subtract(endPoint, cornerPoint, scratch2));
var granularity = (cornerType === PolylineVolumeGeometryLibrary.CornerType.BEVELED) ? 1 : Math.ceil(angle / _Math.CesiumMath.toRadians(5)) + 1;
var size = granularity * 3;
var array = new Array(size);
array[size - 3] = endPoint.x;
array[size - 2] = endPoint.y;
array[size - 1] = endPoint.z;
var m;
if (leftIsOutside) {
m = BoundingSphere.Matrix3.fromQuaternion(Transforms.Quaternion.fromAxisAngle(Cartographic.Cartesian3.negate(cornerPoint, scratch1), angle / granularity, quaterion), rotMatrix);
} else {
m = BoundingSphere.Matrix3.fromQuaternion(Transforms.Quaternion.fromAxisAngle(cornerPoint, angle / granularity, quaterion), rotMatrix);
}
var index = 0;
startPoint = Cartographic.Cartesian3.clone(startPoint, scratch1);
for (var i = 0; i < granularity; i++) {
startPoint = BoundingSphere.Matrix3.multiplyByVector(m, startPoint, startPoint);
array[index++] = startPoint.x;
array[index++] = startPoint.y;
array[index++] = startPoint.z;
}
return array;
}
function addEndCaps(calculatedPositions) {
var cornerPoint = cartesian1;
var startPoint = cartesian2;
var endPoint = cartesian3;
var leftEdge = calculatedPositions[1];
startPoint = Cartographic.Cartesian3.fromArray(calculatedPositions[1], leftEdge.length - 3, startPoint);
endPoint = Cartographic.Cartesian3.fromArray(calculatedPositions[0], 0, endPoint);
cornerPoint = Cartographic.Cartesian3.midpoint(startPoint, endPoint, cornerPoint);
var firstEndCap = computeRoundCorner(cornerPoint, startPoint, endPoint, PolylineVolumeGeometryLibrary.CornerType.ROUNDED, false);
var length = calculatedPositions.length - 1;
var rightEdge = calculatedPositions[length - 1];
leftEdge = calculatedPositions[length];
startPoint = Cartographic.Cartesian3.fromArray(rightEdge, rightEdge.length - 3, startPoint);
endPoint = Cartographic.Cartesian3.fromArray(leftEdge, 0, endPoint);
cornerPoint = Cartographic.Cartesian3.midpoint(startPoint, endPoint, cornerPoint);
var lastEndCap = computeRoundCorner(cornerPoint, startPoint, endPoint, PolylineVolumeGeometryLibrary.CornerType.ROUNDED, false);
return [firstEndCap, lastEndCap];
}
function computeMiteredCorner(position, leftCornerDirection, lastPoint, leftIsOutside) {
var cornerPoint = scratch1;
if (leftIsOutside) {
cornerPoint = Cartographic.Cartesian3.add(position, leftCornerDirection, cornerPoint);
} else {
leftCornerDirection = Cartographic.Cartesian3.negate(leftCornerDirection, leftCornerDirection);
cornerPoint = Cartographic.Cartesian3.add(position, leftCornerDirection, cornerPoint);
}
return [cornerPoint.x, cornerPoint.y, cornerPoint.z, lastPoint.x, lastPoint.y, lastPoint.z];
}
function addShiftedPositions(positions, left, scalar, calculatedPositions) {
var rightPositions = new Array(positions.length);
var leftPositions = new Array(positions.length);
var scaledLeft = Cartographic.Cartesian3.multiplyByScalar(left, scalar, scratch1);
var scaledRight = Cartographic.Cartesian3.negate(scaledLeft, scratch2);
var rightIndex = 0;
var leftIndex = positions.length - 1;
for (var i = 0; i < positions.length; i += 3) {
var pos = Cartographic.Cartesian3.fromArray(positions, i, scratch3);
var rightPos = Cartographic.Cartesian3.add(pos, scaledRight, scratch4);
rightPositions[rightIndex++] = rightPos.x;
rightPositions[rightIndex++] = rightPos.y;
rightPositions[rightIndex++] = rightPos.z;
var leftPos = Cartographic.Cartesian3.add(pos, scaledLeft, scratch4);
leftPositions[leftIndex--] = leftPos.z;
leftPositions[leftIndex--] = leftPos.y;
leftPositions[leftIndex--] = leftPos.x;
}
calculatedPositions.push(rightPositions, leftPositions);
return calculatedPositions;
}
/**
* @private
*/
CorridorGeometryLibrary.addAttribute = function(attribute, value, front, back) {
var x = value.x;
var y = value.y;
var z = value.z;
if (when.defined(front)) {
attribute[front] = x;
attribute[front + 1] = y;
attribute[front + 2] = z;
}
if (when.defined(back)) {
attribute[back] = z;
attribute[back - 1] = y;
attribute[back - 2] = x;
}
};
var scratchForwardProjection = new Cartographic.Cartesian3();
var scratchBackwardProjection = new Cartographic.Cartesian3();
/**
* @private
*/
CorridorGeometryLibrary.computePositions = function(params) {
var granularity = params.granularity;
var positions = params.positions;
var ellipsoid = params.ellipsoid;
var width = params.width / 2;
var cornerType = params.cornerType;
var saveAttributes = params.saveAttributes;
var normal = cartesian1;
var forward = cartesian2;
var backward = cartesian3;
var left = cartesian4;
var cornerDirection = cartesian5;
var startPoint = cartesian6;
var previousPos = cartesian7;
var rightPos = cartesian8;
var leftPos = cartesian9;
var center = cartesian10;
var calculatedPositions = [];
var calculatedLefts = (saveAttributes) ? [] : undefined;
var calculatedNormals = (saveAttributes) ? [] : undefined;
var position = positions[0]; //add first point
var nextPosition = positions[1];
forward = Cartographic.Cartesian3.normalize(Cartographic.Cartesian3.subtract(nextPosition, position, forward), forward);
normal = ellipsoid.geodeticSurfaceNormal(position, normal);
left = Cartographic.Cartesian3.normalize(Cartographic.Cartesian3.cross(normal, forward, left), left);
if (saveAttributes) {
calculatedLefts.push(left.x, left.y, left.z);
calculatedNormals.push(normal.x, normal.y, normal.z);
}
previousPos = Cartographic.Cartesian3.clone(position, previousPos);
position = nextPosition;
backward = Cartographic.Cartesian3.negate(forward, backward);
var subdividedPositions;
var corners = [];
var i;
var length = positions.length;
for (i = 1; i < length - 1; i++) { // add middle points and corners
normal = ellipsoid.geodeticSurfaceNormal(position, normal);
nextPosition = positions[i + 1];
forward = Cartographic.Cartesian3.normalize(Cartographic.Cartesian3.subtract(nextPosition, position, forward), forward);
cornerDirection = Cartographic.Cartesian3.normalize(Cartographic.Cartesian3.add(forward, backward, cornerDirection), cornerDirection);
var forwardProjection = Cartographic.Cartesian3.multiplyByScalar(normal, Cartographic.Cartesian3.dot(forward, normal), scratchForwardProjection);
Cartographic.Cartesian3.subtract(forward, forwardProjection, forwardProjection);
Cartographic.Cartesian3.normalize(forwardProjection, forwardProjection);
var backwardProjection = Cartographic.Cartesian3.multiplyByScalar(normal, Cartographic.Cartesian3.dot(backward, normal), scratchBackwardProjection);
Cartographic.Cartesian3.subtract(backward, backwardProjection, backwardProjection);
Cartographic.Cartesian3.normalize(backwardProjection, backwardProjection);
var doCorner = !_Math.CesiumMath.equalsEpsilon(Math.abs(Cartographic.Cartesian3.dot(forwardProjection, backwardProjection)), 1.0, _Math.CesiumMath.EPSILON7);
if (doCorner) {
cornerDirection = Cartographic.Cartesian3.cross(cornerDirection, normal, cornerDirection);
cornerDirection = Cartographic.Cartesian3.cross(normal, cornerDirection, cornerDirection);
cornerDirection = Cartographic.Cartesian3.normalize(cornerDirection, cornerDirection);
var scalar = width / Math.max(0.25, Cartographic.Cartesian3.magnitude(Cartographic.Cartesian3.cross(cornerDirection, backward, scratch1)));
var leftIsOutside = PolylineVolumeGeometryLibrary.PolylineVolumeGeometryLibrary.angleIsGreaterThanPi(forward, backward, position, ellipsoid);
cornerDirection = Cartographic.Cartesian3.multiplyByScalar(cornerDirection, scalar, cornerDirection);
if (leftIsOutside) {
rightPos = Cartographic.Cartesian3.add(position, cornerDirection, rightPos);
center = Cartographic.Cartesian3.add(rightPos, Cartographic.Cartesian3.multiplyByScalar(left, width, center), center);
leftPos = Cartographic.Cartesian3.add(rightPos, Cartographic.Cartesian3.multiplyByScalar(left, width * 2, leftPos), leftPos);
scaleArray2[0] = Cartographic.Cartesian3.clone(previousPos, scaleArray2[0]);
scaleArray2[1] = Cartographic.Cartesian3.clone(center, scaleArray2[1]);
subdividedPositions = PolylinePipeline.PolylinePipeline.generateArc({
positions: scaleArray2,
granularity: granularity,
ellipsoid: ellipsoid
});
calculatedPositions = addShiftedPositions(subdividedPositions, left, width, calculatedPositions);
if (saveAttributes) {
calculatedLefts.push(left.x, left.y, left.z);
calculatedNormals.push(normal.x, normal.y, normal.z);
}
startPoint = Cartographic.Cartesian3.clone(leftPos, startPoint);
left = Cartographic.Cartesian3.normalize(Cartographic.Cartesian3.cross(normal, forward, left), left);
leftPos = Cartographic.Cartesian3.add(rightPos, Cartographic.Cartesian3.multiplyByScalar(left, width * 2, leftPos), leftPos);
previousPos = Cartographic.Cartesian3.add(rightPos, Cartographic.Cartesian3.multiplyByScalar(left, width, previousPos), previousPos);
if (cornerType === PolylineVolumeGeometryLibrary.CornerType.ROUNDED || cornerType === PolylineVolumeGeometryLibrary.CornerType.BEVELED) {
corners.push({
leftPositions : computeRoundCorner(rightPos, startPoint, leftPos, cornerType, leftIsOutside)
});
} else {
corners.push({
leftPositions : computeMiteredCorner(position, Cartographic.Cartesian3.negate(cornerDirection, cornerDirection), leftPos, leftIsOutside)
});
}
} else {
leftPos = Cartographic.Cartesian3.add(position, cornerDirection, leftPos);
center = Cartographic.Cartesian3.add(leftPos, Cartographic.Cartesian3.negate(Cartographic.Cartesian3.multiplyByScalar(left, width, center), center), center);
rightPos = Cartographic.Cartesian3.add(leftPos, Cartographic.Cartesian3.negate(Cartographic.Cartesian3.multiplyByScalar(left, width * 2, rightPos), rightPos), rightPos);
scaleArray2[0] = Cartographic.Cartesian3.clone(previousPos, scaleArray2[0]);
scaleArray2[1] = Cartographic.Cartesian3.clone(center, scaleArray2[1]);
subdividedPositions = PolylinePipeline.PolylinePipeline.generateArc({
positions: scaleArray2,
granularity: granularity,
ellipsoid: ellipsoid
});
calculatedPositions = addShiftedPositions(subdividedPositions, left, width, calculatedPositions);
if (saveAttributes) {
calculatedLefts.push(left.x, left.y, left.z);
calculatedNormals.push(normal.x, normal.y, normal.z);
}
startPoint = Cartographic.Cartesian3.clone(rightPos, startPoint);
left = Cartographic.Cartesian3.normalize(Cartographic.Cartesian3.cross(normal, forward, left), left);
rightPos = Cartographic.Cartesian3.add(leftPos, Cartographic.Cartesian3.negate(Cartographic.Cartesian3.multiplyByScalar(left, width * 2, rightPos), rightPos), rightPos);
previousPos = Cartographic.Cartesian3.add(leftPos, Cartographic.Cartesian3.negate(Cartographic.Cartesian3.multiplyByScalar(left, width, previousPos), previousPos), previousPos);
if (cornerType === PolylineVolumeGeometryLibrary.CornerType.ROUNDED || cornerType === PolylineVolumeGeometryLibrary.CornerType.BEVELED) {
corners.push({
rightPositions : computeRoundCorner(leftPos, startPoint, rightPos, cornerType, leftIsOutside)
});
} else {
corners.push({
rightPositions : computeMiteredCorner(position, cornerDirection, rightPos, leftIsOutside)
});
}
}
backward = Cartographic.Cartesian3.negate(forward, backward);
}
position = nextPosition;
}
normal = ellipsoid.geodeticSurfaceNormal(position, normal);
scaleArray2[0] = Cartographic.Cartesian3.clone(previousPos, scaleArray2[0]);
scaleArray2[1] = Cartographic.Cartesian3.clone(position, scaleArray2[1]);
subdividedPositions = PolylinePipeline.PolylinePipeline.generateArc({
positions: scaleArray2,
granularity: granularity,
ellipsoid: ellipsoid
});
calculatedPositions = addShiftedPositions(subdividedPositions, left, width, calculatedPositions);
if (saveAttributes) {
calculatedLefts.push(left.x, left.y, left.z);
calculatedNormals.push(normal.x, normal.y, normal.z);
}
var endPositions;
if (cornerType === PolylineVolumeGeometryLibrary.CornerType.ROUNDED) {
endPositions = addEndCaps(calculatedPositions);
}
return {
positions : calculatedPositions,
corners : corners,
lefts : calculatedLefts,
normals : calculatedNormals,
endPositions : endPositions
};
};
exports.CorridorGeometryLibrary = CorridorGeometryLibrary;
});