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/**
* 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', './Math-61ede240', './Cartographic-f2a06374', './Cartesian2-16a61632', './BoundingSphere-d018a565', './Cartesian4-5af5bb24', './Transforms-cd52cbaf', './EllipsoidTangentPlane-33ed15f1', './PolylinePipeline-f937854b'], function (exports, _Math, Cartographic, Cartesian2, BoundingSphere, Cartesian4, Transforms, EllipsoidTangentPlane, PolylinePipeline) { 'use strict';
/**
* Style options for corners.
*
* @demo The {@link https://sandcastle.cesium.com/index.html?src=Corridor.html&label=Geometries|Corridor Demo}
* demonstrates the three corner types, as used by {@link CorridorGraphics}.
*
* @exports CornerType
*/
var CornerType = {
/**
* <img src="Images/CornerTypeRounded.png" style="vertical-align: middle;" width="186" height="189" />
*
* Corner has a smooth edge.
* @type {Number}
* @constant
*/
ROUNDED : 0,
/**
* <img src="Images/CornerTypeMitered.png" style="vertical-align: middle;" width="186" height="189" />
*
* Corner point is the intersection of adjacent edges.
* @type {Number}
* @constant
*/
MITERED : 1,
/**
* <img src="Images/CornerTypeBeveled.png" style="vertical-align: middle;" width="186" height="189" />
*
* Corner is clipped.
* @type {Number}
* @constant
*/
BEVELED : 2
};
var CornerType$1 = Object.freeze(CornerType);
var scratch2Array = [new Cartographic.Cartesian3(), new Cartographic.Cartesian3()];
var scratchCartesian1 = new Cartographic.Cartesian3();
var scratchCartesian2 = new Cartographic.Cartesian3();
var scratchCartesian3 = new Cartographic.Cartesian3();
var scratchCartesian4 = new Cartographic.Cartesian3();
var scratchCartesian5 = new Cartographic.Cartesian3();
var scratchCartesian6 = new Cartographic.Cartesian3();
var scratchCartesian7 = new Cartographic.Cartesian3();
var scratchCartesian8 = new Cartographic.Cartesian3();
var scratchCartesian9 = new Cartographic.Cartesian3();
var scratch1 = new Cartographic.Cartesian3();
var scratch2 = new Cartographic.Cartesian3();
/**
* @private
*/
var PolylineVolumeGeometryLibrary = {};
var cartographic = new Cartographic.Cartographic();
function scaleToSurface(positions, ellipsoid) {
var heights = new Array(positions.length);
for (var i = 0; i < positions.length; i++) {
var pos = positions[i];
cartographic = ellipsoid.cartesianToCartographic(pos, cartographic);
heights[i] = cartographic.height;
positions[i] = ellipsoid.scaleToGeodeticSurface(pos, pos);
}
return heights;
}
function subdivideHeights(points, h0, h1, granularity) {
var p0 = points[0];
var p1 = points[1];
var angleBetween = Cartographic.Cartesian3.angleBetween(p0, p1);
var numPoints = Math.ceil(angleBetween / granularity);
var heights = new Array(numPoints);
var i;
if (h0 === h1) {
for (i = 0; i < numPoints; i++) {
heights[i] = h0;
}
heights.push(h1);
return heights;
}
var dHeight = h1 - h0;
var heightPerVertex = dHeight / (numPoints);
for (i = 1; i < numPoints; i++) {
var h = h0 + i * heightPerVertex;
heights[i] = h;
}
heights[0] = h0;
heights.push(h1);
return heights;
}
var nextScratch = new Cartographic.Cartesian3();
var prevScratch = new Cartographic.Cartesian3();
function computeRotationAngle(start, end, position, ellipsoid) {
var tangentPlane = new EllipsoidTangentPlane.EllipsoidTangentPlane(position, ellipsoid);
var next = tangentPlane.projectPointOntoPlane(Cartographic.Cartesian3.add(position, start, nextScratch), nextScratch);
var prev = tangentPlane.projectPointOntoPlane(Cartographic.Cartesian3.add(position, end, prevScratch), prevScratch);
var angle = Cartesian2.Cartesian2.angleBetween(next, prev);
return (prev.x * next.y - prev.y * next.x >= 0.0) ? -angle : angle;
}
var negativeX = new Cartographic.Cartesian3(-1, 0, 0);
var transform = BoundingSphere.Matrix4.clone(BoundingSphere.Matrix4.IDENTITY);
var translation = new BoundingSphere.Matrix4();
var rotationZ = new BoundingSphere.Matrix3();
var scaleMatrix = BoundingSphere.Matrix3.IDENTITY.clone();
var westScratch = new Cartographic.Cartesian3();
var finalPosScratch = new Cartesian4.Cartesian4();
var heightCartesian = new Cartographic.Cartesian3();
function addPosition(center, left, shape, finalPositions, ellipsoid, height, xScalar, repeat) {
var west = westScratch;
var finalPosition = finalPosScratch;
transform = Transforms.Transforms.eastNorthUpToFixedFrame(center, ellipsoid, transform);
west = BoundingSphere.Matrix4.multiplyByPointAsVector(transform, negativeX, west);
west = Cartographic.Cartesian3.normalize(west, west);
var angle = computeRotationAngle(west, left, center, ellipsoid);
rotationZ = BoundingSphere.Matrix3.fromRotationZ(angle, rotationZ);
heightCartesian.z = height;
transform = BoundingSphere.Matrix4.multiplyTransformation(transform, BoundingSphere.Matrix4.fromRotationTranslation(rotationZ, heightCartesian, translation), transform);
var scale = scaleMatrix;
scale[0] = xScalar;
for (var j = 0; j < repeat; j++) {
for (var i = 0; i < shape.length; i += 3) {
finalPosition = Cartographic.Cartesian3.fromArray(shape, i, finalPosition);
finalPosition = BoundingSphere.Matrix3.multiplyByVector(scale, finalPosition, finalPosition);
finalPosition = BoundingSphere.Matrix4.multiplyByPoint(transform, finalPosition, finalPosition);
finalPositions.push(finalPosition.x, finalPosition.y, finalPosition.z);
}
}
return finalPositions;
}
function addPositionLocal(center, left, shape, finalPositions, ellipsoid, height, xScalar, repeat, enuInverse) {
var west = westScratch;
var finalPosition = finalPosScratch;
transform = Transforms.Transforms.eastNorthUpToFixedFrame(center, ellipsoid, transform);
west = BoundingSphere.Matrix4.multiplyByPointAsVector(transform, negativeX, west);
west = Cartographic.Cartesian3.normalize(west, west);
var angle = computeRotationAngle(west, left, center, ellipsoid);
rotationZ = BoundingSphere.Matrix3.fromRotationZ(angle, rotationZ);
heightCartesian.z = height;
transform = BoundingSphere.Matrix4.multiplyTransformation(transform, BoundingSphere.Matrix4.fromRotationTranslation(rotationZ, heightCartesian, translation), transform);
var scale = scaleMatrix;
scale[0] = xScalar;
for (var j = 0; j < repeat; j++) {
for (var i = 0; i < shape.length; i += 3) {
finalPosition = Cartographic.Cartesian3.fromArray(shape, i, finalPosition);
finalPosition = BoundingSphere.Matrix3.multiplyByVector(scale, finalPosition, finalPosition);
finalPosition = BoundingSphere.Matrix4.multiplyByPoint(transform, finalPosition, finalPosition);
finalPosition = BoundingSphere.Matrix4.multiplyByPoint(enuInverse, finalPosition, finalPosition);
finalPositions.push(finalPosition.x, finalPosition.y, finalPosition.z);
}
}
return finalPositions;
}
var centerScratch = new Cartographic.Cartesian3();
function addPositions(centers, left, shape, finalPositions, ellipsoid, heights, xScalar) {
for (var i = 0; i < centers.length; i += 3) {
var center = Cartographic.Cartesian3.fromArray(centers, i, centerScratch);
finalPositions = addPosition(center, left, shape, finalPositions, ellipsoid, heights[i / 3], xScalar, 1);
}
return finalPositions;
}
function addLocalPositions(centers, left, shape, finalPositions, ellipsoid, heights, xScalar, enuInverse) {
for (var i = 0; i < centers.length; i += 3) {
var center = Cartographic.Cartesian3.fromArray(centers, i, centerScratch);
finalPositions = addPositionLocal(center, left, shape, finalPositions, ellipsoid, heights[i / 3], xScalar, 1, enuInverse);
}
return finalPositions;
}
function convertShapeTo3DDuplicate(shape2D, boundingRectangle) { //orientate 2D shape to XZ plane center at (0, 0, 0), duplicate points
var length = shape2D.length;
var shape = new Array(length * 6);
var index = 0;
var xOffset = boundingRectangle.x + boundingRectangle.width / 2;
var yOffset = boundingRectangle.y + boundingRectangle.height / 2;
var point = shape2D[0];
shape[index++] = point.x - xOffset;
shape[index++] = 0.0;
shape[index++] = point.y - yOffset;
for (var i = 1; i < length; i++) {
point = shape2D[i];
var x = point.x - xOffset;
var z = point.y - yOffset;
shape[index++] = x;
shape[index++] = 0.0;
shape[index++] = z;
shape[index++] = x;
shape[index++] = 0.0;
shape[index++] = z;
}
point = shape2D[0];
shape[index++] = point.x - xOffset;
shape[index++] = 0.0;
shape[index++] = point.y - yOffset;
return shape;
}
function convertShapeTo3D(shape2D, boundingRectangle) { //orientate 2D shape to XZ plane center at (0, 0, 0)
var length = shape2D.length;
var shape = new Array(length * 3);
var index = 0;
var xOffset = boundingRectangle.x + boundingRectangle.width / 2;
var yOffset = boundingRectangle.y + boundingRectangle.height / 2;
for (var i = 0; i < length; i++) {
shape[index++] = shape2D[i].x - xOffset;
shape[index++] = 0;
shape[index++] = shape2D[i].y - yOffset;
}
return shape;
}
var quaterion = new Transforms.Quaternion();
var startPointScratch = new Cartographic.Cartesian3();
var rotMatrix = new BoundingSphere.Matrix3();
function computeRoundCorner(pivot, startPoint, endPoint, cornerType, leftIsOutside, ellipsoid, finalPositions, shape, height, duplicatePoints) {
var angle = Cartographic.Cartesian3.angleBetween(Cartographic.Cartesian3.subtract(startPoint, pivot, scratch1), Cartographic.Cartesian3.subtract(endPoint, pivot, scratch2));
var granularity = (cornerType === CornerType$1.BEVELED) ? 0 : Math.ceil(angle / _Math.CesiumMath.toRadians(5));
var m;
if (leftIsOutside) {
m = BoundingSphere.Matrix3.fromQuaternion(Transforms.Quaternion.fromAxisAngle(Cartographic.Cartesian3.negate(pivot, scratch1), angle / (granularity + 1), quaterion), rotMatrix);
} else {
m = BoundingSphere.Matrix3.fromQuaternion(Transforms.Quaternion.fromAxisAngle(pivot, angle / (granularity + 1), quaterion), rotMatrix);
}
var left;
var surfacePoint;
startPoint = Cartographic.Cartesian3.clone(startPoint, startPointScratch);
if (granularity > 0) {
var repeat = duplicatePoints ? 2 : 1;
for (var i = 0; i < granularity; i++) {
startPoint = BoundingSphere.Matrix3.multiplyByVector(m, startPoint, startPoint);
left = Cartographic.Cartesian3.subtract(startPoint, pivot, scratch1);
left = Cartographic.Cartesian3.normalize(left, left);
if (!leftIsOutside) {
left = Cartographic.Cartesian3.negate(left, left);
}
surfacePoint = ellipsoid.scaleToGeodeticSurface(startPoint, scratch2);
finalPositions = addPosition(surfacePoint, left, shape, finalPositions, ellipsoid, height, 1, repeat);
}
} else {
left = Cartographic.Cartesian3.subtract(startPoint, pivot, scratch1);
left = Cartographic.Cartesian3.normalize(left, left);
if (!leftIsOutside) {
left = Cartographic.Cartesian3.negate(left, left);
}
surfacePoint = ellipsoid.scaleToGeodeticSurface(startPoint, scratch2);
finalPositions = addPosition(surfacePoint, left, shape, finalPositions, ellipsoid, height, 1, 1);
endPoint = Cartographic.Cartesian3.clone(endPoint, startPointScratch);
left = Cartographic.Cartesian3.subtract(endPoint, pivot, scratch1);
left = Cartographic.Cartesian3.normalize(left, left);
if (!leftIsOutside) {
left = Cartographic.Cartesian3.negate(left, left);
}
surfacePoint = ellipsoid.scaleToGeodeticSurface(endPoint, scratch2);
finalPositions = addPosition(surfacePoint, left, shape, finalPositions, ellipsoid, height, 1, 1);
}
return finalPositions;
}
PolylineVolumeGeometryLibrary.removeDuplicatesFromShape = function(shapePositions) {
var length = shapePositions.length;
var cleanedPositions = [];
for (var i0 = length - 1, i1 = 0; i1 < length; i0 = i1++) {
var v0 = shapePositions[i0];
var v1 = shapePositions[i1];
if (!Cartesian2.Cartesian2.equals(v0, v1)) {
cleanedPositions.push(v1); // Shallow copy!
}
}
return cleanedPositions;
};
PolylineVolumeGeometryLibrary.angleIsGreaterThanPi = function(forward, backward, position, ellipsoid) {
var tangentPlane = new EllipsoidTangentPlane.EllipsoidTangentPlane(position, ellipsoid);
var next = tangentPlane.projectPointOntoPlane(Cartographic.Cartesian3.add(position, forward, nextScratch), nextScratch);
var prev = tangentPlane.projectPointOntoPlane(Cartographic.Cartesian3.add(position, backward, prevScratch), prevScratch);
return ((prev.x * next.y) - (prev.y * next.x)) >= 0.0;
};
var scratchForwardProjection = new Cartographic.Cartesian3();
var scratchBackwardProjection = new Cartographic.Cartesian3();
PolylineVolumeGeometryLibrary.computePositions = function(positions, shape2D, boundingRectangle, geometry, duplicatePoints) {
var ellipsoid = geometry._ellipsoid;
var heights = scaleToSurface(positions, ellipsoid);
var granularity = geometry._granularity;
var cornerType = geometry._cornerType;
var shapeForSides = duplicatePoints ? convertShapeTo3DDuplicate(shape2D, boundingRectangle) : convertShapeTo3D(shape2D, boundingRectangle);
var shapeForEnds = duplicatePoints ? convertShapeTo3D(shape2D, boundingRectangle) : undefined;
var heightOffset = boundingRectangle.height / 2;
var width = boundingRectangle.width / 2;
var length = positions.length;
var finalPositions = [];
var ends = duplicatePoints ? [] : undefined;
var forward = scratchCartesian1;
var backward = scratchCartesian2;
var cornerDirection = scratchCartesian3;
var surfaceNormal = scratchCartesian4;
var pivot = scratchCartesian5;
var start = scratchCartesian6;
var end = scratchCartesian7;
var left = scratchCartesian8;
var previousPosition = scratchCartesian9;
var position = positions[0];
var nextPosition = positions[1];
surfaceNormal = ellipsoid.geodeticSurfaceNormal(position, surfaceNormal);
forward = Cartographic.Cartesian3.subtract(nextPosition, position, forward);
forward = Cartographic.Cartesian3.normalize(forward, forward);
left = Cartographic.Cartesian3.cross(surfaceNormal, forward, left);
left = Cartographic.Cartesian3.normalize(left, left);
var h0 = heights[0];
var h1 = heights[1];
if (duplicatePoints) {
ends = addPosition(position, left, shapeForEnds, ends, ellipsoid, h0 + heightOffset, 1, 1);
}
previousPosition = Cartographic.Cartesian3.clone(position, previousPosition);
position = nextPosition;
backward = Cartographic.Cartesian3.negate(forward, backward);
var subdividedHeights;
var subdividedPositions;
for (var i = 1; i < length - 1; i++) {
var repeat = duplicatePoints ? 2 : 1;
nextPosition = positions[i + 1];
forward = Cartographic.Cartesian3.subtract(nextPosition, position, forward);
forward = Cartographic.Cartesian3.normalize(forward, forward);
cornerDirection = Cartographic.Cartesian3.add(forward, backward, cornerDirection);
cornerDirection = Cartographic.Cartesian3.normalize(cornerDirection, cornerDirection);
surfaceNormal = ellipsoid.geodeticSurfaceNormal(position, surfaceNormal);
var forwardProjection = Cartographic.Cartesian3.multiplyByScalar(surfaceNormal, Cartographic.Cartesian3.dot(forward, surfaceNormal), scratchForwardProjection);
Cartographic.Cartesian3.subtract(forward, forwardProjection, forwardProjection);
Cartographic.Cartesian3.normalize(forwardProjection, forwardProjection);
var backwardProjection = Cartographic.Cartesian3.multiplyByScalar(surfaceNormal, Cartographic.Cartesian3.dot(backward, surfaceNormal), 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, surfaceNormal, cornerDirection);
cornerDirection = Cartographic.Cartesian3.cross(surfaceNormal, cornerDirection, cornerDirection);
cornerDirection = Cartographic.Cartesian3.normalize(cornerDirection, cornerDirection);
var scalar = 1 / Math.max(0.25, (Cartographic.Cartesian3.magnitude(Cartographic.Cartesian3.cross(cornerDirection, backward, scratch1))));
var leftIsOutside = PolylineVolumeGeometryLibrary.angleIsGreaterThanPi(forward, backward, position, ellipsoid);
if (leftIsOutside) {
pivot = Cartographic.Cartesian3.add(position, Cartographic.Cartesian3.multiplyByScalar(cornerDirection, scalar * width, cornerDirection), pivot);
start = Cartographic.Cartesian3.add(pivot, Cartographic.Cartesian3.multiplyByScalar(left, width, start), start);
scratch2Array[0] = Cartographic.Cartesian3.clone(previousPosition, scratch2Array[0]);
scratch2Array[1] = Cartographic.Cartesian3.clone(start, scratch2Array[1]);
subdividedHeights = subdivideHeights(scratch2Array, h0 + heightOffset, h1 + heightOffset, granularity);
subdividedPositions = PolylinePipeline.PolylinePipeline.generateArc({
positions: scratch2Array,
granularity: granularity,
ellipsoid: ellipsoid
});
finalPositions = addPositions(subdividedPositions, left, shapeForSides, finalPositions, ellipsoid, subdividedHeights, 1);
left = Cartographic.Cartesian3.cross(surfaceNormal, forward, left);
left = Cartographic.Cartesian3.normalize(left, left);
end = Cartographic.Cartesian3.add(pivot, Cartographic.Cartesian3.multiplyByScalar(left, width, end), end);
if (cornerType === CornerType$1.ROUNDED || cornerType === CornerType$1.BEVELED) {
computeRoundCorner(pivot, start, end, cornerType, leftIsOutside, ellipsoid, finalPositions, shapeForSides, h1 + heightOffset, duplicatePoints);
} else {
cornerDirection = Cartographic.Cartesian3.negate(cornerDirection, cornerDirection);
finalPositions = addPosition(position, cornerDirection, shapeForSides, finalPositions, ellipsoid, h1 + heightOffset, scalar, repeat);
}
previousPosition = Cartographic.Cartesian3.clone(end, previousPosition);
} else {
pivot = Cartographic.Cartesian3.add(position, Cartographic.Cartesian3.multiplyByScalar(cornerDirection, scalar * width, cornerDirection), pivot);
start = Cartographic.Cartesian3.add(pivot, Cartographic.Cartesian3.multiplyByScalar(left, -width, start), start);
scratch2Array[0] = Cartographic.Cartesian3.clone(previousPosition, scratch2Array[0]);
scratch2Array[1] = Cartographic.Cartesian3.clone(start, scratch2Array[1]);
subdividedHeights = subdivideHeights(scratch2Array, h0 + heightOffset, h1 + heightOffset, granularity);
subdividedPositions = PolylinePipeline.PolylinePipeline.generateArc({
positions: scratch2Array,
granularity: granularity,
ellipsoid: ellipsoid
});
finalPositions = addPositions(subdividedPositions, left, shapeForSides, finalPositions, ellipsoid, subdividedHeights, 1);
left = Cartographic.Cartesian3.cross(surfaceNormal, forward, left);
left = Cartographic.Cartesian3.normalize(left, left);
end = Cartographic.Cartesian3.add(pivot, Cartographic.Cartesian3.multiplyByScalar(left, -width, end), end);
if (cornerType === CornerType$1.ROUNDED || cornerType === CornerType$1.BEVELED) {
computeRoundCorner(pivot, start, end, cornerType, leftIsOutside, ellipsoid, finalPositions, shapeForSides, h1 + heightOffset, duplicatePoints);
} else {
finalPositions = addPosition(position, cornerDirection, shapeForSides, finalPositions, ellipsoid, h1 + heightOffset, scalar, repeat);
}
previousPosition = Cartographic.Cartesian3.clone(end, previousPosition);
}
backward = Cartographic.Cartesian3.negate(forward, backward);
} else {
finalPositions = addPosition(previousPosition, left, shapeForSides, finalPositions, ellipsoid, h0 + heightOffset, 1, 1);
previousPosition = position;
}
h0 = h1;
h1 = heights[i + 1];
position = nextPosition;
}
scratch2Array[0] = Cartographic.Cartesian3.clone(previousPosition, scratch2Array[0]);
scratch2Array[1] = Cartographic.Cartesian3.clone(position, scratch2Array[1]);
subdividedHeights = subdivideHeights(scratch2Array, h0 + heightOffset, h1 + heightOffset, granularity);
subdividedPositions = PolylinePipeline.PolylinePipeline.generateArc({
positions: scratch2Array,
granularity: granularity,
ellipsoid: ellipsoid
});
finalPositions = addPositions(subdividedPositions, left, shapeForSides, finalPositions, ellipsoid, subdividedHeights, 1);
if (duplicatePoints) {
ends = addPosition(position, left, shapeForEnds, ends, ellipsoid, h1 + heightOffset, 1, 1);
}
length = finalPositions.length;
var posLength = duplicatePoints ? length + ends.length : length;
var combinedPositions = new Float64Array(posLength);
combinedPositions.set(finalPositions);
if (duplicatePoints) {
combinedPositions.set(ends, length);
}
return combinedPositions;
};
PolylineVolumeGeometryLibrary.computeLocalPositions = function(positions, shape2D, boundingRectangle, geometry, duplicatePoints, enuCenter) {
var ellipsoid = geometry._ellipsoid;
var heights = scaleToSurface(positions, ellipsoid);
var granularity = geometry._granularity;
var cornerType = geometry._cornerType;
var shapeForSides = duplicatePoints ? convertShapeTo3DDuplicate(shape2D, boundingRectangle) : convertShapeTo3D(shape2D, boundingRectangle);
var shapeForEnds = duplicatePoints ? convertShapeTo3D(shape2D, boundingRectangle) : undefined;
var heightOffset = 0; //保证放样模型处于放样点的中心点
var width = boundingRectangle.width / 2;
var length = positions.length;
var finalPositions = [];
var ends = duplicatePoints ? [] : undefined;
var forward = scratchCartesian1;
var backward = scratchCartesian2;
var cornerDirection = scratchCartesian3;
var surfaceNormal = scratchCartesian4;
var pivot = scratchCartesian5;
var start = scratchCartesian6;
var end = scratchCartesian7;
var left = scratchCartesian8;
var previousPosition = scratchCartesian9;
var enu = Transforms.Transforms.eastNorthUpToFixedFrame(enuCenter, ellipsoid, new BoundingSphere.Matrix4());
var enuInverse = BoundingSphere.Matrix4.inverse(enu, new BoundingSphere.Matrix4());
var position = positions[0];
var nextPosition = positions[1];
surfaceNormal = ellipsoid.geodeticSurfaceNormal(position, surfaceNormal);
forward = Cartographic.Cartesian3.subtract(nextPosition, position, forward);
forward = Cartographic.Cartesian3.normalize(forward, forward);
left = Cartographic.Cartesian3.cross(surfaceNormal, forward, left);
left = Cartographic.Cartesian3.normalize(left, left);
var h0 = heights[0];
var h1 = heights[1];
if (duplicatePoints) {
ends = addPositionLocal(position, left, shapeForEnds, ends, ellipsoid, h0 + heightOffset, 1, 1, enuInverse);
}
previousPosition = Cartographic.Cartesian3.clone(position, previousPosition);
position = nextPosition;
backward = Cartographic.Cartesian3.negate(forward, backward);
var subdividedHeights;
var subdividedPositions;
for (var i = 1; i < length - 1; i++) {
var repeat = duplicatePoints ? 2 : 1;
nextPosition = positions[i + 1];
forward = Cartographic.Cartesian3.subtract(nextPosition, position, forward);
forward = Cartographic.Cartesian3.normalize(forward, forward);
cornerDirection = Cartographic.Cartesian3.add(forward, backward, cornerDirection);
cornerDirection = Cartographic.Cartesian3.normalize(cornerDirection, cornerDirection);
surfaceNormal = ellipsoid.geodeticSurfaceNormal(position, surfaceNormal);
var forwardProjection = Cartographic.Cartesian3.multiplyByScalar(surfaceNormal, Cartographic.Cartesian3.dot(forward, surfaceNormal), scratchForwardProjection);
Cartographic.Cartesian3.subtract(forward, forwardProjection, forwardProjection);
Cartographic.Cartesian3.normalize(forwardProjection, forwardProjection);
var backwardProjection = Cartographic.Cartesian3.multiplyByScalar(surfaceNormal, Cartographic.Cartesian3.dot(backward, surfaceNormal), 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, surfaceNormal, cornerDirection);
cornerDirection = Cartographic.Cartesian3.cross(surfaceNormal, cornerDirection, cornerDirection);
cornerDirection = Cartographic.Cartesian3.normalize(cornerDirection, cornerDirection);
var scalar = 1 / Math.max(0.25, (Cartographic.Cartesian3.magnitude(Cartographic.Cartesian3.cross(cornerDirection, backward, scratch1))));
var leftIsOutside = PolylineVolumeGeometryLibrary.angleIsGreaterThanPi(forward, backward, position, ellipsoid);
if (leftIsOutside) {
pivot = Cartographic.Cartesian3.add(position, Cartographic.Cartesian3.multiplyByScalar(cornerDirection, scalar * width, cornerDirection), pivot);
start = Cartographic.Cartesian3.add(pivot, Cartographic.Cartesian3.multiplyByScalar(left, width, start), start);
scratch2Array[0] = Cartographic.Cartesian3.clone(previousPosition, scratch2Array[0]);
scratch2Array[1] = Cartographic.Cartesian3.clone(start, scratch2Array[1]);
subdividedHeights = subdivideHeights(scratch2Array, h0 + heightOffset, h1 + heightOffset, granularity);
subdividedPositions = PolylinePipeline.PolylinePipeline.generateArc({
positions: scratch2Array,
granularity: granularity,
ellipsoid: ellipsoid
});
finalPositions = addPositions(subdividedPositions, left, shapeForSides, finalPositions, ellipsoid, subdividedHeights, 1, fromEnu);
left = Cartographic.Cartesian3.cross(surfaceNormal, forward, left);
left = Cartographic.Cartesian3.normalize(left, left);
end = Cartographic.Cartesian3.add(pivot, Cartographic.Cartesian3.multiplyByScalar(left, width, end), end);
if (cornerType === CornerType$1.ROUNDED || cornerType === CornerType$1.BEVELED) {
computeRoundCorner(pivot, start, end, cornerType, leftIsOutside, ellipsoid, finalPositions, shapeForSides, h1 + heightOffset, duplicatePoints);
} else {
cornerDirection = Cartographic.Cartesian3.negate(cornerDirection, cornerDirection);
finalPositions = addPositionLocal(position, cornerDirection, shapeForSides, finalPositions, ellipsoid, h1 + heightOffset, scalar, repeat, enuInverse);
}
previousPosition = Cartographic.Cartesian3.clone(end, previousPosition);
} else {
pivot = Cartographic.Cartesian3.add(position, Cartographic.Cartesian3.multiplyByScalar(cornerDirection, scalar * width, cornerDirection), pivot);
start = Cartographic.Cartesian3.add(pivot, Cartographic.Cartesian3.multiplyByScalar(left, -width, start), start);
scratch2Array[0] = Cartographic.Cartesian3.clone(previousPosition, scratch2Array[0]);
scratch2Array[1] = Cartographic.Cartesian3.clone(start, scratch2Array[1]);
subdividedHeights = subdivideHeights(scratch2Array, h0 + heightOffset, h1 + heightOffset, granularity);
subdividedPositions = PolylinePipeline.PolylinePipeline.generateArc({
positions: scratch2Array,
granularity: granularity,
ellipsoid: ellipsoid
});
finalPositions = addPositions(subdividedPositions, left, shapeForSides, finalPositions, ellipsoid, subdividedHeights, 1);
left = Cartographic.Cartesian3.cross(surfaceNormal, forward, left);
left = Cartographic.Cartesian3.normalize(left, left);
end = Cartographic.Cartesian3.add(pivot, Cartographic.Cartesian3.multiplyByScalar(left, -width, end), end);
if (cornerType === CornerType$1.ROUNDED || cornerType === CornerType$1.BEVELED) {
computeRoundCorner(pivot, start, end, cornerType, leftIsOutside, ellipsoid, finalPositions, shapeForSides, h1 + heightOffset, duplicatePoints);
} else {
finalPositions = addPositionLocal(position, cornerDirection, shapeForSides, finalPositions, ellipsoid, h1 + heightOffset, scalar, repeat, enuInverse);
}
previousPosition = Cartographic.Cartesian3.clone(end, previousPosition);
}
backward = Cartographic.Cartesian3.negate(forward, backward);
} else {
finalPositions = addPositionLocal(previousPosition, left, shapeForSides, finalPositions, ellipsoid, h0 + heightOffset, 1, 1, enuInverse);
previousPosition = position;
}
h0 = h1;
h1 = heights[i + 1];
position = nextPosition;
}
scratch2Array[0] = Cartographic.Cartesian3.clone(previousPosition, scratch2Array[0]);
scratch2Array[1] = Cartographic.Cartesian3.clone(position, scratch2Array[1]);
subdividedHeights = subdivideHeights(scratch2Array, h0 + heightOffset, h1 + heightOffset, granularity);
subdividedPositions = PolylinePipeline.PolylinePipeline.generateArc({
positions: scratch2Array,
granularity: granularity,
ellipsoid: ellipsoid
});
finalPositions = addLocalPositions(subdividedPositions, left, shapeForSides, finalPositions, ellipsoid, subdividedHeights, 1, enuInverse);
if (duplicatePoints) {
ends = addPositionLocal(position, left, shapeForEnds, ends, ellipsoid, h1 + heightOffset, 1, 1, enuInverse);
}
length = finalPositions.length;
var posLength = duplicatePoints ? length + ends.length : length;
var combinedPositions = new Float64Array(posLength);
combinedPositions.set(finalPositions);
if (duplicatePoints) {
combinedPositions.set(ends, length);
}
return combinedPositions;
};
exports.CornerType = CornerType$1;
exports.PolylineVolumeGeometryLibrary = PolylineVolumeGeometryLibrary;
});