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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(['./when-8d13db60', './Check-70bec281', './Math-61ede240', './Cartographic-f2a06374', './Cartesian2-16a61632', './BoundingSphere-d018a565', './Cartesian4-5af5bb24', './RuntimeError-ba10bc3e', './WebGLConstants-4c11ee5f', './ComponentDatatype-5862616f', './GeometryAttribute-1e248a71', './PrimitiveType-97893bc7', './FeatureDetection-7bd32c34', './Transforms-cd52cbaf', './buildModuleUrl-e7952659', './GeometryAttributes-aacecde6', './IndexDatatype-9435b55f', './IntersectionTests-813bb943', './Plane-aa6c3ce5', './arrayRemoveDuplicates-2869246d', './BoundingRectangle-5c75c80b', './EllipsoidTangentPlane-33ed15f1', './EllipsoidRhumbLine-87f26cac', './earcut-2.2.1-b404d9e6', './PolygonPipeline-01a00202', './PolylineVolumeGeometryLibrary-dd05fa5f', './EllipsoidGeodesic-9ef071e0', './PolylinePipeline-f937854b'], function (when, Check, _Math, Cartographic, Cartesian2, BoundingSphere, Cartesian4, RuntimeError, WebGLConstants, ComponentDatatype, GeometryAttribute, PrimitiveType, FeatureDetection, Transforms, buildModuleUrl, GeometryAttributes, IndexDatatype, IntersectionTests, Plane, arrayRemoveDuplicates, BoundingRectangle, EllipsoidTangentPlane, EllipsoidRhumbLine, earcut2_2_1, PolygonPipeline, PolylineVolumeGeometryLibrary, EllipsoidGeodesic, PolylinePipeline) { 'use strict';
function computeAttributes(positions, shape) {
var attributes = new GeometryAttributes.GeometryAttributes();
attributes.position = new GeometryAttribute.GeometryAttribute({
componentDatatype : ComponentDatatype.ComponentDatatype.DOUBLE,
componentsPerAttribute : 3,
values : positions
});
var shapeLength = shape.length;
var vertexCount = attributes.position.values.length / 3;
var positionLength = positions.length / 3;
var shapeCount = positionLength / shapeLength;
var indices = IndexDatatype.IndexDatatype.createTypedArray(vertexCount, 2 * shapeLength * (shapeCount + 1));
var i, j;
var index = 0;
i = 0;
var offset = i * shapeLength;
for (j = 0; j < shapeLength - 1; j++) {
indices[index++] = j + offset;
indices[index++] = j + offset + 1;
}
indices[index++] = shapeLength - 1 + offset;
indices[index++] = offset;
i = shapeCount - 1;
offset = i * shapeLength;
for (j = 0; j < shapeLength - 1; j++) {
indices[index++] = j + offset;
indices[index++] = j + offset + 1;
}
indices[index++] = shapeLength - 1 + offset;
indices[index++] = offset;
for (i = 0; i < shapeCount - 1; i++) {
var firstOffset = shapeLength * i;
var secondOffset = firstOffset + shapeLength;
for (j = 0; j < shapeLength; j++) {
indices[index++] = j + firstOffset;
indices[index++] = j + secondOffset;
}
}
var geometry = new GeometryAttribute.Geometry({
attributes : attributes,
indices : IndexDatatype.IndexDatatype.createTypedArray(vertexCount, indices),
boundingSphere : BoundingSphere.BoundingSphere.fromVertices(positions),
primitiveType : PrimitiveType.PrimitiveType.LINES
});
return geometry;
}
/**
* A description of a polyline with a volume (a 2D shape extruded along a polyline).
*
* @alias PolylineVolumeOutlineGeometry
* @constructor
*
* @param {Object} options Object with the following properties:
* @param {Cartesian3[]} options.polylinePositions An array of positions that define the center of the polyline volume.
* @param {Cartesian2[]} options.shapePositions An array of positions that define the shape to be extruded along the polyline
* @param {Ellipsoid} [options.ellipsoid=Ellipsoid.WGS84] The ellipsoid to be used as a reference.
* @param {Number} [options.granularity=CesiumMath.RADIANS_PER_DEGREE] The distance, in radians, between each latitude and longitude. Determines the number of positions in the buffer.
* @param {CornerType} [options.cornerType=CornerType.ROUNDED] Determines the style of the corners.
*
* @see PolylineVolumeOutlineGeometry#createGeometry
*
* @example
* function computeCircle(radius) {
* var positions = [];
* for (var i = 0; i < 360; i++) {
* var radians = Cesium.Math.toRadians(i);
* positions.push(new Cesium.Cartesian2(radius * Math.cos(radians), radius * Math.sin(radians)));
* }
* return positions;
* }
*
* var volumeOutline = new Cesium.PolylineVolumeOutlineGeometry({
* polylinePositions : Cesium.Cartesian3.fromDegreesArray([
* -72.0, 40.0,
* -70.0, 35.0
* ]),
* shapePositions : computeCircle(100000.0)
* });
*/
function PolylineVolumeOutlineGeometry(options) {
options = when.defaultValue(options, when.defaultValue.EMPTY_OBJECT);
var positions = options.polylinePositions;
var shape = options.shapePositions;
//>>includeStart('debug', pragmas.debug);
if (!when.defined(positions)) {
throw new Check.DeveloperError('options.polylinePositions is required.');
}
if (!when.defined(shape)) {
throw new Check.DeveloperError('options.shapePositions is required.');
}
//>>includeEnd('debug');
this._positions = positions;
this._shape = shape;
this._ellipsoid = Cartesian2.Ellipsoid.clone(when.defaultValue(options.ellipsoid, Cartesian2.Ellipsoid.WGS84));
this._cornerType = when.defaultValue(options.cornerType, PolylineVolumeGeometryLibrary.CornerType.ROUNDED);
this._granularity = when.defaultValue(options.granularity, _Math.CesiumMath.RADIANS_PER_DEGREE);
this._workerName = 'createPolylineVolumeOutlineGeometry';
var numComponents = 1 + positions.length * Cartographic.Cartesian3.packedLength;
numComponents += 1 + shape.length * Cartesian2.Cartesian2.packedLength;
/**
* The number of elements used to pack the object into an array.
* @type {Number}
*/
this.packedLength = numComponents + Cartesian2.Ellipsoid.packedLength + 2;
}
/**
* Stores the provided instance into the provided array.
*
* @param {PolylineVolumeOutlineGeometry} value The value to pack.
* @param {Number[]} array The array to pack into.
* @param {Number} [startingIndex=0] The index into the array at which to start packing the elements.
*
* @returns {Number[]} The array that was packed into
*/
PolylineVolumeOutlineGeometry.pack = function(value, array, startingIndex) {
//>>includeStart('debug', pragmas.debug);
if (!when.defined(value)) {
throw new Check.DeveloperError('value is required');
}
if (!when.defined(array)) {
throw new Check.DeveloperError('array is required');
}
//>>includeEnd('debug');
startingIndex = when.defaultValue(startingIndex, 0);
var i;
var positions = value._positions;
var length = positions.length;
array[startingIndex++] = length;
for (i = 0; i < length; ++i, startingIndex += Cartographic.Cartesian3.packedLength) {
Cartographic.Cartesian3.pack(positions[i], array, startingIndex);
}
var shape = value._shape;
length = shape.length;
array[startingIndex++] = length;
for (i = 0; i < length; ++i, startingIndex += Cartesian2.Cartesian2.packedLength) {
Cartesian2.Cartesian2.pack(shape[i], array, startingIndex);
}
Cartesian2.Ellipsoid.pack(value._ellipsoid, array, startingIndex);
startingIndex += Cartesian2.Ellipsoid.packedLength;
array[startingIndex++] = value._cornerType;
array[startingIndex] = value._granularity;
return array;
};
var scratchEllipsoid = Cartesian2.Ellipsoid.clone(Cartesian2.Ellipsoid.UNIT_SPHERE);
var scratchOptions = {
polylinePositions : undefined,
shapePositions : undefined,
ellipsoid : scratchEllipsoid,
height : undefined,
cornerType : undefined,
granularity : undefined
};
/**
* Retrieves an instance from a packed array.
*
* @param {Number[]} array The packed array.
* @param {Number} [startingIndex=0] The starting index of the element to be unpacked.
* @param {PolylineVolumeOutlineGeometry} [result] The object into which to store the result.
* @returns {PolylineVolumeOutlineGeometry} The modified result parameter or a new PolylineVolumeOutlineGeometry instance if one was not provided.
*/
PolylineVolumeOutlineGeometry.unpack = function(array, startingIndex, result) {
//>>includeStart('debug', pragmas.debug);
if (!when.defined(array)) {
throw new Check.DeveloperError('array is required');
}
//>>includeEnd('debug');
startingIndex = when.defaultValue(startingIndex, 0);
var i;
var length = array[startingIndex++];
var positions = new Array(length);
for (i = 0; i < length; ++i, startingIndex += Cartographic.Cartesian3.packedLength) {
positions[i] = Cartographic.Cartesian3.unpack(array, startingIndex);
}
length = array[startingIndex++];
var shape = new Array(length);
for (i = 0; i < length; ++i, startingIndex += Cartesian2.Cartesian2.packedLength) {
shape[i] = Cartesian2.Cartesian2.unpack(array, startingIndex);
}
var ellipsoid = Cartesian2.Ellipsoid.unpack(array, startingIndex, scratchEllipsoid);
startingIndex += Cartesian2.Ellipsoid.packedLength;
var cornerType = array[startingIndex++];
var granularity = array[startingIndex];
if (!when.defined(result)) {
scratchOptions.polylinePositions = positions;
scratchOptions.shapePositions = shape;
scratchOptions.cornerType = cornerType;
scratchOptions.granularity = granularity;
return new PolylineVolumeOutlineGeometry(scratchOptions);
}
result._positions = positions;
result._shape = shape;
result._ellipsoid = Cartesian2.Ellipsoid.clone(ellipsoid, result._ellipsoid);
result._cornerType = cornerType;
result._granularity = granularity;
return result;
};
var brScratch = new BoundingRectangle.BoundingRectangle();
/**
* Computes the geometric representation of the outline of a polyline with a volume, including its vertices, indices, and a bounding sphere.
*
* @param {PolylineVolumeOutlineGeometry} polylineVolumeOutlineGeometry A description of the polyline volume outline.
* @returns {Geometry|undefined} The computed vertices and indices.
*/
PolylineVolumeOutlineGeometry.createGeometry = function(polylineVolumeOutlineGeometry) {
var positions = polylineVolumeOutlineGeometry._positions;
var cleanPositions = arrayRemoveDuplicates.arrayRemoveDuplicates(positions, Cartographic.Cartesian3.equalsEpsilon);
var shape2D = polylineVolumeOutlineGeometry._shape;
shape2D = PolylineVolumeGeometryLibrary.PolylineVolumeGeometryLibrary.removeDuplicatesFromShape(shape2D);
if (cleanPositions.length < 2 || shape2D.length < 3) {
return undefined;
}
if (PolygonPipeline.PolygonPipeline.computeWindingOrder2D(shape2D) === PolygonPipeline.WindingOrder.CLOCKWISE) {
shape2D.reverse();
}
var boundingRectangle = BoundingRectangle.BoundingRectangle.fromPoints(shape2D, brScratch);
var computedPositions = PolylineVolumeGeometryLibrary.PolylineVolumeGeometryLibrary.computePositions(cleanPositions, shape2D, boundingRectangle, polylineVolumeOutlineGeometry, false);
return computeAttributes(computedPositions, shape2D);
};
function createPolylineVolumeOutlineGeometry(polylineVolumeOutlineGeometry, offset) {
if (when.defined(offset)) {
polylineVolumeOutlineGeometry = PolylineVolumeOutlineGeometry.unpack(polylineVolumeOutlineGeometry, offset);
}
polylineVolumeOutlineGeometry._ellipsoid = Cartesian2.Ellipsoid.clone(polylineVolumeOutlineGeometry._ellipsoid);
return PolylineVolumeOutlineGeometry.createGeometry(polylineVolumeOutlineGeometry);
}
return createPolylineVolumeOutlineGeometry;
});