1086 lines
56 KiB
JavaScript
1086 lines
56 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(['./when-c2e8ef35', './Check-c4f3a3fc', './Math-a06249ed', './Cartesian2-a4e73c05', './Transforms-533d1994', './RuntimeError-6122571f', './WebGLConstants-4ae0db90', './ComponentDatatype-762ab5b7', './GeometryAttribute-47fb6f1a', './GeometryAttributes-57608efc', './AttributeCompression-6b12d004', './GeometryPipeline-7db33fea', './EncodedCartesian3-0e715517', './IndexDatatype-755cb3fd', './IntersectionTests-11682642', './Plane-beebe18b', './GeometryOffsetAttribute-bc682dfe', './VertexFormat-5ae20b72', './GeometryInstance-81f6321c', './arrayRemoveDuplicates-8d93d3b4', './BoundingRectangle-a263ff52', './EllipsoidTangentPlane-cf837d4c', './ArcType-29cf2197', './EllipsoidRhumbLine-33694923', './PolygonPipeline-99528590', './PolygonGeometryLibrary-4cb0025f', './EllipsoidGeodesic-0b95fd8b'], function (when, Check, _Math, Cartesian2, Transforms, RuntimeError, WebGLConstants, ComponentDatatype, GeometryAttribute, GeometryAttributes, AttributeCompression, GeometryPipeline, EncodedCartesian3, IndexDatatype, IntersectionTests, Plane, GeometryOffsetAttribute, VertexFormat, GeometryInstance, arrayRemoveDuplicates, BoundingRectangle, EllipsoidTangentPlane, ArcType, EllipsoidRhumbLine, PolygonPipeline, PolygonGeometryLibrary, EllipsoidGeodesic) { 'use strict';
|
|
|
|
var scratchCarto1 = new Cartesian2.Cartographic();
|
|
var scratchCarto2 = new Cartesian2.Cartographic();
|
|
function adjustPosHeightsForNormal(position, p1, p2, ellipsoid) {
|
|
var carto1 = ellipsoid.cartesianToCartographic(position, scratchCarto1);
|
|
var height = carto1.height;
|
|
var p1Carto = ellipsoid.cartesianToCartographic(p1, scratchCarto2);
|
|
p1Carto.height = height;
|
|
ellipsoid.cartographicToCartesian(p1Carto, p1);
|
|
|
|
var p2Carto = ellipsoid.cartesianToCartographic(p2, scratchCarto2);
|
|
p2Carto.height = height - 100;
|
|
ellipsoid.cartographicToCartesian(p2Carto, p2);
|
|
}
|
|
|
|
var scratchBoundingRectangle = new BoundingRectangle.BoundingRectangle();
|
|
var scratchPosition = new Cartesian2.Cartesian3();
|
|
var scratchNormal = new Cartesian2.Cartesian3();
|
|
var scratchTangent = new Cartesian2.Cartesian3();
|
|
var scratchBitangent = new Cartesian2.Cartesian3();
|
|
var p1Scratch = new Cartesian2.Cartesian3();
|
|
var p2Scratch = new Cartesian2.Cartesian3();
|
|
var scratchPerPosNormal = new Cartesian2.Cartesian3();
|
|
var scratchPerPosTangent = new Cartesian2.Cartesian3();
|
|
var scratchPerPosBitangent = new Cartesian2.Cartesian3();
|
|
|
|
var appendTextureCoordinatesOrigin = new Cartesian2.Cartesian2();
|
|
var appendTextureCoordinatesCartesian2 = new Cartesian2.Cartesian2();
|
|
var appendTextureCoordinatesCartesian3 = new Cartesian2.Cartesian3();
|
|
var appendTextureCoordinatesQuaternion = new Transforms.Quaternion();
|
|
var appendTextureCoordinatesMatrix3 = new Transforms.Matrix3();
|
|
var tangentMatrixScratch = new Transforms.Matrix3();
|
|
|
|
function computeAttributes(options) {
|
|
var vertexFormat = options.vertexFormat;
|
|
var geometry = options.geometry;
|
|
var shadowVolume = options.shadowVolume;
|
|
var flatPositions = geometry.attributes.position.values;
|
|
var length = flatPositions.length;
|
|
var wall = options.wall;
|
|
var top = options.top || wall;
|
|
var bottom = options.bottom || wall;
|
|
if (vertexFormat.st || vertexFormat.normal || vertexFormat.tangent || vertexFormat.bitangent || shadowVolume) {
|
|
// PERFORMANCE_IDEA: Compute before subdivision, then just interpolate during subdivision.
|
|
// PERFORMANCE_IDEA: Compute with createGeometryFromPositions() for fast path when there's no holes.
|
|
var boundingRectangle = options.boundingRectangle;
|
|
var tangentPlane = options.tangentPlane;
|
|
var ellipsoid = options.ellipsoid;
|
|
var stRotation = options.stRotation;
|
|
var perPositionHeight = options.perPositionHeight;
|
|
|
|
var origin = appendTextureCoordinatesOrigin;
|
|
origin.x = boundingRectangle.x;
|
|
origin.y = boundingRectangle.y;
|
|
|
|
var textureCoordinates = vertexFormat.st ? new Float32Array(2 * (length / 3)) : undefined;
|
|
var normals;
|
|
if (vertexFormat.normal) {
|
|
if (perPositionHeight && top && !wall) {
|
|
normals = geometry.attributes.normal.values;
|
|
} else {
|
|
normals = new Float32Array(length);
|
|
}
|
|
}
|
|
var tangents = vertexFormat.tangent ? new Float32Array(length) : undefined;
|
|
var bitangents = vertexFormat.bitangent ? new Float32Array(length) : undefined;
|
|
var extrudeNormals = shadowVolume ? new Float32Array(length) : undefined;
|
|
|
|
var textureCoordIndex = 0;
|
|
var attrIndex = 0;
|
|
|
|
var normal = scratchNormal;
|
|
var tangent = scratchTangent;
|
|
var bitangent = scratchBitangent;
|
|
var recomputeNormal = true;
|
|
|
|
var textureMatrix = appendTextureCoordinatesMatrix3;
|
|
var tangentRotationMatrix = tangentMatrixScratch;
|
|
if (stRotation !== 0.0) {
|
|
var rotation = Transforms.Quaternion.fromAxisAngle(tangentPlane._plane.normal, stRotation, appendTextureCoordinatesQuaternion);
|
|
textureMatrix = Transforms.Matrix3.fromQuaternion(rotation, textureMatrix);
|
|
|
|
rotation = Transforms.Quaternion.fromAxisAngle(tangentPlane._plane.normal, -stRotation, appendTextureCoordinatesQuaternion);
|
|
tangentRotationMatrix = Transforms.Matrix3.fromQuaternion(rotation, tangentRotationMatrix);
|
|
} else {
|
|
textureMatrix = Transforms.Matrix3.clone(Transforms.Matrix3.IDENTITY, textureMatrix);
|
|
tangentRotationMatrix = Transforms.Matrix3.clone(Transforms.Matrix3.IDENTITY, tangentRotationMatrix);
|
|
}
|
|
|
|
var bottomOffset = 0;
|
|
var bottomOffset2 = 0;
|
|
|
|
if (top && bottom) {
|
|
bottomOffset = length / 2;
|
|
bottomOffset2 = length / 3;
|
|
|
|
length /= 2;
|
|
}
|
|
|
|
for ( var i = 0; i < length; i += 3) {
|
|
var position = Cartesian2.Cartesian3.fromArray(flatPositions, i, appendTextureCoordinatesCartesian3);
|
|
|
|
if (vertexFormat.st) {
|
|
var p = Transforms.Matrix3.multiplyByVector(textureMatrix, position, scratchPosition);
|
|
p = ellipsoid.scaleToGeodeticSurface(p,p);
|
|
var st = tangentPlane.projectPointOntoPlane(p, appendTextureCoordinatesCartesian2);
|
|
Cartesian2.Cartesian2.subtract(st, origin, st);
|
|
|
|
var stx = _Math.CesiumMath.clamp(st.x / boundingRectangle.width, 0, 1);
|
|
var sty = _Math.CesiumMath.clamp(st.y / boundingRectangle.height, 0, 1);
|
|
if (bottom) {
|
|
textureCoordinates[textureCoordIndex + bottomOffset2] = stx;
|
|
textureCoordinates[textureCoordIndex + 1 + bottomOffset2] = sty;
|
|
}
|
|
if (top) {
|
|
textureCoordinates[textureCoordIndex] = stx;
|
|
textureCoordinates[textureCoordIndex + 1] = sty;
|
|
}
|
|
|
|
textureCoordIndex += 2;
|
|
}
|
|
|
|
if (vertexFormat.normal || vertexFormat.tangent || vertexFormat.bitangent || shadowVolume) {
|
|
var attrIndex1 = attrIndex + 1;
|
|
var attrIndex2 = attrIndex + 2;
|
|
|
|
if (wall) {
|
|
if (i + 3 < length) {
|
|
var p1 = Cartesian2.Cartesian3.fromArray(flatPositions, i + 3, p1Scratch);
|
|
|
|
if (recomputeNormal) {
|
|
var p2 = Cartesian2.Cartesian3.fromArray(flatPositions, i + length, p2Scratch);
|
|
if (perPositionHeight) {
|
|
adjustPosHeightsForNormal(position, p1, p2, ellipsoid);
|
|
}
|
|
Cartesian2.Cartesian3.subtract(p1, position, p1);
|
|
Cartesian2.Cartesian3.subtract(p2, position, p2);
|
|
normal = Cartesian2.Cartesian3.normalize(Cartesian2.Cartesian3.cross(p2, p1, normal), normal);
|
|
recomputeNormal = false;
|
|
}
|
|
|
|
if (Cartesian2.Cartesian3.equalsEpsilon(p1, position, _Math.CesiumMath.EPSILON10)) { // if we've reached a corner
|
|
recomputeNormal = true;
|
|
}
|
|
}
|
|
|
|
if (vertexFormat.tangent || vertexFormat.bitangent) {
|
|
bitangent = ellipsoid.geodeticSurfaceNormal(position, bitangent);
|
|
if (vertexFormat.tangent) {
|
|
tangent = Cartesian2.Cartesian3.normalize(Cartesian2.Cartesian3.cross(bitangent, normal, tangent), tangent);
|
|
}
|
|
}
|
|
} else {
|
|
normal = ellipsoid.geodeticSurfaceNormal(position, normal);
|
|
if (vertexFormat.tangent || vertexFormat.bitangent) {
|
|
if (perPositionHeight) {
|
|
scratchPerPosNormal = Cartesian2.Cartesian3.fromArray(normals, attrIndex, scratchPerPosNormal);
|
|
scratchPerPosTangent = Cartesian2.Cartesian3.cross(Cartesian2.Cartesian3.UNIT_Z, scratchPerPosNormal, scratchPerPosTangent);
|
|
scratchPerPosTangent = Cartesian2.Cartesian3.normalize(Transforms.Matrix3.multiplyByVector(tangentRotationMatrix, scratchPerPosTangent, scratchPerPosTangent), scratchPerPosTangent);
|
|
if (vertexFormat.bitangent) {
|
|
scratchPerPosBitangent = Cartesian2.Cartesian3.normalize(Cartesian2.Cartesian3.cross(scratchPerPosNormal, scratchPerPosTangent, scratchPerPosBitangent), scratchPerPosBitangent);
|
|
}
|
|
}
|
|
|
|
tangent = Cartesian2.Cartesian3.cross(Cartesian2.Cartesian3.UNIT_Z, normal, tangent);
|
|
tangent = Cartesian2.Cartesian3.normalize(Transforms.Matrix3.multiplyByVector(tangentRotationMatrix, tangent, tangent), tangent);
|
|
if (vertexFormat.bitangent) {
|
|
bitangent = Cartesian2.Cartesian3.normalize(Cartesian2.Cartesian3.cross(normal, tangent, bitangent), bitangent);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (vertexFormat.normal) {
|
|
if (options.wall) {
|
|
normals[attrIndex + bottomOffset] = normal.x;
|
|
normals[attrIndex1 + bottomOffset] = normal.y;
|
|
normals[attrIndex2 + bottomOffset] = normal.z;
|
|
} else if (bottom){
|
|
normals[attrIndex + bottomOffset] = -normal.x;
|
|
normals[attrIndex1 + bottomOffset] = -normal.y;
|
|
normals[attrIndex2 + bottomOffset] = -normal.z;
|
|
}
|
|
|
|
if ((top && !perPositionHeight) || wall) {
|
|
normals[attrIndex] = normal.x;
|
|
normals[attrIndex1] = normal.y;
|
|
normals[attrIndex2] = normal.z;
|
|
}
|
|
}
|
|
|
|
if (shadowVolume) {
|
|
if (wall) {
|
|
normal = ellipsoid.geodeticSurfaceNormal(position, normal);
|
|
}
|
|
extrudeNormals[attrIndex + bottomOffset] = -normal.x;
|
|
extrudeNormals[attrIndex1 + bottomOffset] = -normal.y;
|
|
extrudeNormals[attrIndex2 + bottomOffset] = -normal.z;
|
|
}
|
|
|
|
if (vertexFormat.tangent) {
|
|
if (options.wall) {
|
|
tangents[attrIndex + bottomOffset] = tangent.x;
|
|
tangents[attrIndex1 + bottomOffset] = tangent.y;
|
|
tangents[attrIndex2 + bottomOffset] = tangent.z;
|
|
} else if (bottom) {
|
|
tangents[attrIndex + bottomOffset] = -tangent.x;
|
|
tangents[attrIndex1 + bottomOffset] = -tangent.y;
|
|
tangents[attrIndex2 + bottomOffset] = -tangent.z;
|
|
}
|
|
|
|
if(top) {
|
|
if (perPositionHeight) {
|
|
tangents[attrIndex] = scratchPerPosTangent.x;
|
|
tangents[attrIndex1] = scratchPerPosTangent.y;
|
|
tangents[attrIndex2] = scratchPerPosTangent.z;
|
|
} else {
|
|
tangents[attrIndex] = tangent.x;
|
|
tangents[attrIndex1] = tangent.y;
|
|
tangents[attrIndex2] = tangent.z;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (vertexFormat.bitangent) {
|
|
if (bottom) {
|
|
bitangents[attrIndex + bottomOffset] = bitangent.x;
|
|
bitangents[attrIndex1 + bottomOffset] = bitangent.y;
|
|
bitangents[attrIndex2 + bottomOffset] = bitangent.z;
|
|
}
|
|
if (top) {
|
|
if (perPositionHeight) {
|
|
bitangents[attrIndex] = scratchPerPosBitangent.x;
|
|
bitangents[attrIndex1] = scratchPerPosBitangent.y;
|
|
bitangents[attrIndex2] = scratchPerPosBitangent.z;
|
|
} else {
|
|
bitangents[attrIndex] = bitangent.x;
|
|
bitangents[attrIndex1] = bitangent.y;
|
|
bitangents[attrIndex2] = bitangent.z;
|
|
}
|
|
}
|
|
}
|
|
attrIndex += 3;
|
|
}
|
|
}
|
|
|
|
if (vertexFormat.st) {
|
|
geometry.attributes.st = new GeometryAttribute.GeometryAttribute({
|
|
componentDatatype : ComponentDatatype.ComponentDatatype.FLOAT,
|
|
componentsPerAttribute : 2,
|
|
values : textureCoordinates
|
|
});
|
|
}
|
|
|
|
if (vertexFormat.normal) {
|
|
geometry.attributes.normal = new GeometryAttribute.GeometryAttribute({
|
|
componentDatatype : ComponentDatatype.ComponentDatatype.FLOAT,
|
|
componentsPerAttribute : 3,
|
|
values : normals
|
|
});
|
|
}
|
|
|
|
if (vertexFormat.tangent) {
|
|
geometry.attributes.tangent = new GeometryAttribute.GeometryAttribute({
|
|
componentDatatype : ComponentDatatype.ComponentDatatype.FLOAT,
|
|
componentsPerAttribute : 3,
|
|
values : tangents
|
|
});
|
|
}
|
|
|
|
if (vertexFormat.bitangent) {
|
|
geometry.attributes.bitangent = new GeometryAttribute.GeometryAttribute({
|
|
componentDatatype : ComponentDatatype.ComponentDatatype.FLOAT,
|
|
componentsPerAttribute : 3,
|
|
values : bitangents
|
|
});
|
|
}
|
|
|
|
if (shadowVolume) {
|
|
geometry.attributes.extrudeDirection = new GeometryAttribute.GeometryAttribute({
|
|
componentDatatype : ComponentDatatype.ComponentDatatype.FLOAT,
|
|
componentsPerAttribute : 3,
|
|
values : extrudeNormals
|
|
});
|
|
}
|
|
}
|
|
|
|
if (options.extrude && when.defined(options.offsetAttribute)) {
|
|
var size = flatPositions.length / 3;
|
|
var offsetAttribute = new Uint8Array(size);
|
|
|
|
if (options.offsetAttribute === GeometryOffsetAttribute.GeometryOffsetAttribute.TOP) {
|
|
if ((top && bottom) || wall) {
|
|
offsetAttribute = GeometryOffsetAttribute.arrayFill(offsetAttribute, 1, 0, size / 2);
|
|
} else if (top) {
|
|
offsetAttribute = GeometryOffsetAttribute.arrayFill(offsetAttribute, 1);
|
|
}
|
|
} else {
|
|
var offsetValue = options.offsetAttribute === GeometryOffsetAttribute.GeometryOffsetAttribute.NONE ? 0 : 1;
|
|
offsetAttribute = GeometryOffsetAttribute.arrayFill(offsetAttribute, offsetValue);
|
|
}
|
|
|
|
geometry.attributes.applyOffset = new GeometryAttribute.GeometryAttribute({
|
|
componentDatatype : ComponentDatatype.ComponentDatatype.UNSIGNED_BYTE,
|
|
componentsPerAttribute : 1,
|
|
values : offsetAttribute
|
|
});
|
|
}
|
|
|
|
return geometry;
|
|
}
|
|
|
|
var startCartographicScratch = new Cartesian2.Cartographic();
|
|
var endCartographicScratch = new Cartesian2.Cartographic();
|
|
var idlCross = {
|
|
westOverIDL : 0.0,
|
|
eastOverIDL : 0.0
|
|
};
|
|
var ellipsoidGeodesic = new EllipsoidGeodesic.EllipsoidGeodesic();
|
|
function computeRectangle(positions, ellipsoid, arcType, granularity, result) {
|
|
result = when.defaultValue(result, new Cartesian2.Rectangle());
|
|
if (!when.defined(positions) || positions.length < 3) {
|
|
result.west = 0.0;
|
|
result.north = 0.0;
|
|
result.south = 0.0;
|
|
result.east = 0.0;
|
|
return result;
|
|
}
|
|
|
|
if (arcType === ArcType.ArcType.RHUMB) {
|
|
return Cartesian2.Rectangle.fromCartesianArray(positions, ellipsoid, result);
|
|
}
|
|
|
|
if (!ellipsoidGeodesic.ellipsoid.equals(ellipsoid)) {
|
|
ellipsoidGeodesic = new EllipsoidGeodesic.EllipsoidGeodesic(undefined, undefined, ellipsoid);
|
|
}
|
|
|
|
result.west = Number.POSITIVE_INFINITY;
|
|
result.east = Number.NEGATIVE_INFINITY;
|
|
result.south = Number.POSITIVE_INFINITY;
|
|
result.north = Number.NEGATIVE_INFINITY;
|
|
|
|
idlCross.westOverIDL = Number.POSITIVE_INFINITY;
|
|
idlCross.eastOverIDL = Number.NEGATIVE_INFINITY;
|
|
|
|
var inverseChordLength = 1.0 / _Math.CesiumMath.chordLength(granularity, ellipsoid.maximumRadius);
|
|
var positionsLength = positions.length;
|
|
var endCartographic = ellipsoid.cartesianToCartographic(positions[0], endCartographicScratch);
|
|
var startCartographic = startCartographicScratch;
|
|
var swap;
|
|
|
|
for (var i = 1; i < positionsLength; i++) {
|
|
swap = startCartographic;
|
|
startCartographic = endCartographic;
|
|
endCartographic = ellipsoid.cartesianToCartographic(positions[i], swap);
|
|
ellipsoidGeodesic.setEndPoints(startCartographic, endCartographic);
|
|
interpolateAndGrowRectangle(ellipsoidGeodesic, inverseChordLength, result, idlCross);
|
|
}
|
|
|
|
swap = startCartographic;
|
|
startCartographic = endCartographic;
|
|
endCartographic = ellipsoid.cartesianToCartographic(positions[0], swap);
|
|
ellipsoidGeodesic.setEndPoints(startCartographic, endCartographic);
|
|
interpolateAndGrowRectangle(ellipsoidGeodesic, inverseChordLength, result, idlCross);
|
|
|
|
if (result.east - result.west > idlCross.eastOverIDL - idlCross.westOverIDL) {
|
|
result.west = idlCross.westOverIDL;
|
|
result.east = idlCross.eastOverIDL;
|
|
|
|
if (result.east > _Math.CesiumMath.PI) {
|
|
result.east = result.east - _Math.CesiumMath.TWO_PI;
|
|
}
|
|
if (result.west > _Math.CesiumMath.PI) {
|
|
result.west = result.west - _Math.CesiumMath.TWO_PI;
|
|
}
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
var interpolatedCartographicScratch = new Cartesian2.Cartographic();
|
|
function interpolateAndGrowRectangle(ellipsoidGeodesic, inverseChordLength, result, idlCross) {
|
|
var segmentLength = ellipsoidGeodesic.surfaceDistance;
|
|
|
|
var numPoints = Math.ceil(segmentLength * inverseChordLength);
|
|
var subsegmentDistance = numPoints > 0 ? segmentLength / (numPoints - 1) : Number.POSITIVE_INFINITY;
|
|
var interpolationDistance = 0.0;
|
|
|
|
for (var i = 0; i < numPoints; i++) {
|
|
var interpolatedCartographic = ellipsoidGeodesic.interpolateUsingSurfaceDistance(interpolationDistance, interpolatedCartographicScratch);
|
|
interpolationDistance += subsegmentDistance;
|
|
var longitude = interpolatedCartographic.longitude;
|
|
var latitude = interpolatedCartographic.latitude;
|
|
|
|
result.west = Math.min(result.west, longitude);
|
|
result.east = Math.max(result.east, longitude);
|
|
result.south = Math.min(result.south, latitude);
|
|
result.north = Math.max(result.north, latitude);
|
|
|
|
var lonAdjusted = longitude >= 0 ? longitude : longitude + _Math.CesiumMath.TWO_PI;
|
|
idlCross.westOverIDL = Math.min(idlCross.westOverIDL, lonAdjusted);
|
|
idlCross.eastOverIDL = Math.max(idlCross.eastOverIDL, lonAdjusted);
|
|
}
|
|
}
|
|
|
|
var createGeometryFromPositionsExtrudedPositions = [];
|
|
|
|
function createGeometryFromPositionsExtruded(ellipsoid, polygon, granularity, hierarchy, perPositionHeight, closeTop, closeBottom, vertexFormat, arcType) {
|
|
var geos = {
|
|
walls : []
|
|
};
|
|
var i;
|
|
|
|
if (closeTop || closeBottom) {
|
|
var topGeo = PolygonGeometryLibrary.PolygonGeometryLibrary.createGeometryFromPositions(ellipsoid, polygon, granularity, perPositionHeight, vertexFormat, arcType);
|
|
|
|
var edgePoints = topGeo.attributes.position.values;
|
|
var indices = topGeo.indices;
|
|
var numPositions;
|
|
var newIndices;
|
|
|
|
if (closeTop && closeBottom) {
|
|
var topBottomPositions = edgePoints.concat(edgePoints);
|
|
|
|
numPositions = topBottomPositions.length / 3;
|
|
|
|
newIndices = IndexDatatype.IndexDatatype.createTypedArray(numPositions, indices.length * 2);
|
|
newIndices.set(indices);
|
|
var ilength = indices.length;
|
|
|
|
var length = numPositions / 2;
|
|
|
|
for (i = 0; i < ilength; i += 3) {
|
|
var i0 = newIndices[i] + length;
|
|
var i1 = newIndices[i + 1] + length;
|
|
var i2 = newIndices[i + 2] + length;
|
|
|
|
newIndices[i + ilength] = i2;
|
|
newIndices[i + 1 + ilength] = i1;
|
|
newIndices[i + 2 + ilength] = i0;
|
|
}
|
|
|
|
topGeo.attributes.position.values = topBottomPositions;
|
|
if (perPositionHeight && vertexFormat.normal) {
|
|
var normals = topGeo.attributes.normal.values;
|
|
topGeo.attributes.normal.values = new Float32Array(topBottomPositions.length);
|
|
topGeo.attributes.normal.values.set(normals);
|
|
}
|
|
topGeo.indices = newIndices;
|
|
} else if (closeBottom) {
|
|
numPositions = edgePoints.length / 3;
|
|
newIndices = IndexDatatype.IndexDatatype.createTypedArray(numPositions, indices.length);
|
|
|
|
for (i = 0; i < indices.length; i += 3) {
|
|
newIndices[i] = indices[i + 2];
|
|
newIndices[i + 1] = indices[i + 1];
|
|
newIndices[i + 2] = indices[i];
|
|
}
|
|
|
|
topGeo.indices = newIndices;
|
|
}
|
|
|
|
geos.topAndBottom = new GeometryInstance.GeometryInstance({
|
|
geometry : topGeo
|
|
});
|
|
}
|
|
|
|
var outerRing = hierarchy.outerRing;
|
|
var tangentPlane = EllipsoidTangentPlane.EllipsoidTangentPlane.fromPoints(outerRing, ellipsoid);
|
|
var positions2D = tangentPlane.projectPointsOntoPlane(outerRing, createGeometryFromPositionsExtrudedPositions);
|
|
|
|
var windingOrder = PolygonPipeline.PolygonPipeline.computeWindingOrder2D(positions2D);
|
|
if (windingOrder === PolygonPipeline.WindingOrder.CLOCKWISE) {
|
|
outerRing = outerRing.slice().reverse();
|
|
}
|
|
|
|
var wallGeo = PolygonGeometryLibrary.PolygonGeometryLibrary.computeWallGeometry(outerRing, ellipsoid, granularity, perPositionHeight, arcType);
|
|
geos.walls.push(new GeometryInstance.GeometryInstance({
|
|
geometry : wallGeo
|
|
}));
|
|
|
|
var holes = hierarchy.holes;
|
|
for (i = 0; i < holes.length; i++) {
|
|
var hole = holes[i];
|
|
|
|
tangentPlane = EllipsoidTangentPlane.EllipsoidTangentPlane.fromPoints(hole, ellipsoid);
|
|
positions2D = tangentPlane.projectPointsOntoPlane(hole, createGeometryFromPositionsExtrudedPositions);
|
|
|
|
windingOrder = PolygonPipeline.PolygonPipeline.computeWindingOrder2D(positions2D);
|
|
if (windingOrder === PolygonPipeline.WindingOrder.COUNTER_CLOCKWISE) {
|
|
hole = hole.slice().reverse();
|
|
}
|
|
|
|
wallGeo = PolygonGeometryLibrary.PolygonGeometryLibrary.computeWallGeometry(hole, ellipsoid, granularity, perPositionHeight, arcType);
|
|
geos.walls.push(new GeometryInstance.GeometryInstance({
|
|
geometry : wallGeo
|
|
}));
|
|
}
|
|
|
|
return geos;
|
|
}
|
|
|
|
/**
|
|
* A description of a polygon on the ellipsoid. The polygon is defined by a polygon hierarchy. Polygon geometry can be rendered with both {@link Primitive} and {@link GroundPrimitive}.
|
|
*
|
|
* @alias PolygonGeometry
|
|
* @constructor
|
|
*
|
|
* @param {Object} options Object with the following properties:
|
|
* @param {PolygonHierarchy} options.polygonHierarchy A polygon hierarchy that can include holes.
|
|
* @param {Number} [options.height=0.0] The distance in meters between the polygon and the ellipsoid surface.
|
|
* @param {Number} [options.extrudedHeight] The distance in meters between the polygon's extruded face and the ellipsoid surface.
|
|
* @param {VertexFormat} [options.vertexFormat=VertexFormat.DEFAULT] The vertex attributes to be computed.
|
|
* @param {Number} [options.stRotation=0.0] The rotation of the texture coordinates, in radians. A positive rotation is counter-clockwise.
|
|
* @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 {Boolean} [options.perPositionHeight=false] Use the height of options.positions for each position instead of using options.height to determine the height.
|
|
* @param {Boolean} [options.closeTop=true] When false, leaves off the top of an extruded polygon open.
|
|
* @param {Boolean} [options.closeBottom=true] When false, leaves off the bottom of an extruded polygon open.
|
|
* @param {ArcType} [options.arcType=ArcType.GEODESIC] The type of line the polygon edges must follow. Valid options are {@link ArcType.GEODESIC} and {@link ArcType.RHUMB}.
|
|
*
|
|
* @see PolygonGeometry#createGeometry
|
|
* @see PolygonGeometry#fromPositions
|
|
*
|
|
* @demo {@link https://sandcastle.cesium.com/index.html?src=Polygon.html|Cesium Sandcastle Polygon Demo}
|
|
*
|
|
* @example
|
|
* // 1. create a polygon from points
|
|
* var polygon = new Cesium.PolygonGeometry({
|
|
* polygonHierarchy : new Cesium.PolygonHierarchy(
|
|
* Cesium.Cartesian3.fromDegreesArray([
|
|
* -72.0, 40.0,
|
|
* -70.0, 35.0,
|
|
* -75.0, 30.0,
|
|
* -70.0, 30.0,
|
|
* -68.0, 40.0
|
|
* ])
|
|
* )
|
|
* });
|
|
* var geometry = Cesium.PolygonGeometry.createGeometry(polygon);
|
|
*
|
|
* // 2. create a nested polygon with holes
|
|
* var polygonWithHole = new Cesium.PolygonGeometry({
|
|
* polygonHierarchy : new Cesium.PolygonHierarchy(
|
|
* Cesium.Cartesian3.fromDegreesArray([
|
|
* -109.0, 30.0,
|
|
* -95.0, 30.0,
|
|
* -95.0, 40.0,
|
|
* -109.0, 40.0
|
|
* ]),
|
|
* [new Cesium.PolygonHierarchy(
|
|
* Cesium.Cartesian3.fromDegreesArray([
|
|
* -107.0, 31.0,
|
|
* -107.0, 39.0,
|
|
* -97.0, 39.0,
|
|
* -97.0, 31.0
|
|
* ]),
|
|
* [new Cesium.PolygonHierarchy(
|
|
* Cesium.Cartesian3.fromDegreesArray([
|
|
* -105.0, 33.0,
|
|
* -99.0, 33.0,
|
|
* -99.0, 37.0,
|
|
* -105.0, 37.0
|
|
* ]),
|
|
* [new Cesium.PolygonHierarchy(
|
|
* Cesium.Cartesian3.fromDegreesArray([
|
|
* -103.0, 34.0,
|
|
* -101.0, 34.0,
|
|
* -101.0, 36.0,
|
|
* -103.0, 36.0
|
|
* ])
|
|
* )]
|
|
* )]
|
|
* )]
|
|
* )
|
|
* });
|
|
* var geometry = Cesium.PolygonGeometry.createGeometry(polygonWithHole);
|
|
*
|
|
* // 3. create extruded polygon
|
|
* var extrudedPolygon = new Cesium.PolygonGeometry({
|
|
* polygonHierarchy : new Cesium.PolygonHierarchy(
|
|
* Cesium.Cartesian3.fromDegreesArray([
|
|
* -72.0, 40.0,
|
|
* -70.0, 35.0,
|
|
* -75.0, 30.0,
|
|
* -70.0, 30.0,
|
|
* -68.0, 40.0
|
|
* ])
|
|
* ),
|
|
* extrudedHeight: 300000
|
|
* });
|
|
* var geometry = Cesium.PolygonGeometry.createGeometry(extrudedPolygon);
|
|
*/
|
|
function PolygonGeometry(options) {
|
|
//>>includeStart('debug', pragmas.debug);
|
|
Check.Check.typeOf.object('options', options);
|
|
Check.Check.typeOf.object('options.polygonHierarchy', options.polygonHierarchy);
|
|
if (when.defined(options.perPositionHeight) && options.perPositionHeight && when.defined(options.height)) {
|
|
throw new Check.DeveloperError('Cannot use both options.perPositionHeight and options.height');
|
|
}
|
|
if (when.defined(options.arcType) && options.arcType !== ArcType.ArcType.GEODESIC && options.arcType !== ArcType.ArcType.RHUMB) {
|
|
throw new Check.DeveloperError('Invalid arcType. Valid options are ArcType.GEODESIC and ArcType.RHUMB.');
|
|
}
|
|
//>>includeEnd('debug');
|
|
|
|
var polygonHierarchy = options.polygonHierarchy;
|
|
var vertexFormat = when.defaultValue(options.vertexFormat, VertexFormat.VertexFormat.DEFAULT);
|
|
var ellipsoid = when.defaultValue(options.ellipsoid, Cartesian2.Ellipsoid.WGS84);
|
|
var granularity = when.defaultValue(options.granularity, _Math.CesiumMath.RADIANS_PER_DEGREE);
|
|
var stRotation = when.defaultValue(options.stRotation, 0.0);
|
|
var perPositionHeight = when.defaultValue(options.perPositionHeight, false);
|
|
var perPositionHeightExtrude = perPositionHeight && when.defined(options.extrudedHeight);
|
|
var height = when.defaultValue(options.height, 0.0);
|
|
var extrudedHeight = when.defaultValue(options.extrudedHeight, height);
|
|
|
|
if (!perPositionHeightExtrude) {
|
|
var h = Math.max(height, extrudedHeight);
|
|
extrudedHeight = Math.min(height, extrudedHeight);
|
|
height = h;
|
|
}
|
|
|
|
this._vertexFormat = VertexFormat.VertexFormat.clone(vertexFormat);
|
|
this._ellipsoid = Cartesian2.Ellipsoid.clone(ellipsoid);
|
|
this._granularity = granularity;
|
|
this._stRotation = stRotation;
|
|
this._height = height;
|
|
this._extrudedHeight = extrudedHeight;
|
|
this._closeTop = when.defaultValue(options.closeTop, true);
|
|
this._closeBottom = when.defaultValue(options.closeBottom, true);
|
|
this._polygonHierarchy = polygonHierarchy;
|
|
this._perPositionHeight = perPositionHeight;
|
|
this._perPositionHeightExtrude = perPositionHeightExtrude;
|
|
this._shadowVolume = when.defaultValue(options.shadowVolume, false);
|
|
this._workerName = 'createPolygonGeometry';
|
|
this._offsetAttribute = options.offsetAttribute;
|
|
this._arcType = when.defaultValue(options.arcType, ArcType.ArcType.GEODESIC);
|
|
|
|
this._rectangle = undefined;
|
|
this._textureCoordinateRotationPoints = undefined;
|
|
|
|
/**
|
|
* The number of elements used to pack the object into an array.
|
|
* @type {Number}
|
|
*/
|
|
this.packedLength = PolygonGeometryLibrary.PolygonGeometryLibrary.computeHierarchyPackedLength(polygonHierarchy) + Cartesian2.Ellipsoid.packedLength + VertexFormat.VertexFormat.packedLength + 12;
|
|
}
|
|
|
|
/**
|
|
* A description of a polygon from an array of positions. Polygon geometry can be rendered with both {@link Primitive} and {@link GroundPrimitive}.
|
|
*
|
|
* @param {Object} options Object with the following properties:
|
|
* @param {Cartesian3[]} options.positions An array of positions that defined the corner points of the polygon.
|
|
* @param {Number} [options.height=0.0] The height of the polygon.
|
|
* @param {Number} [options.extrudedHeight] The height of the polygon extrusion.
|
|
* @param {VertexFormat} [options.vertexFormat=VertexFormat.DEFAULT] The vertex attributes to be computed.
|
|
* @param {Number} [options.stRotation=0.0] The rotation of the texture coordinates, in radians. A positive rotation is counter-clockwise.
|
|
* @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 {Boolean} [options.perPositionHeight=false] Use the height of options.positions for each position instead of using options.height to determine the height.
|
|
* @param {Boolean} [options.closeTop=true] When false, leaves off the top of an extruded polygon open.
|
|
* @param {Boolean} [options.closeBottom=true] When false, leaves off the bottom of an extruded polygon open.
|
|
* @param {ArcType} [options.arcType=ArcType.GEODESIC] The type of line the polygon edges must follow. Valid options are {@link ArcType.GEODESIC} and {@link ArcType.RHUMB}.
|
|
* @returns {PolygonGeometry}
|
|
*
|
|
*
|
|
* @example
|
|
* // create a polygon from points
|
|
* var polygon = Cesium.PolygonGeometry.fromPositions({
|
|
* positions : Cesium.Cartesian3.fromDegreesArray([
|
|
* -72.0, 40.0,
|
|
* -70.0, 35.0,
|
|
* -75.0, 30.0,
|
|
* -70.0, 30.0,
|
|
* -68.0, 40.0
|
|
* ])
|
|
* });
|
|
* var geometry = Cesium.PolygonGeometry.createGeometry(polygon);
|
|
*
|
|
* @see PolygonGeometry#createGeometry
|
|
*/
|
|
PolygonGeometry.fromPositions = function(options) {
|
|
options = when.defaultValue(options, when.defaultValue.EMPTY_OBJECT);
|
|
|
|
//>>includeStart('debug', pragmas.debug);
|
|
Check.Check.defined('options.positions', options.positions);
|
|
//>>includeEnd('debug');
|
|
|
|
var newOptions = {
|
|
polygonHierarchy : {
|
|
positions : options.positions
|
|
},
|
|
height : options.height,
|
|
extrudedHeight : options.extrudedHeight,
|
|
vertexFormat : options.vertexFormat,
|
|
stRotation : options.stRotation,
|
|
ellipsoid : options.ellipsoid,
|
|
granularity : options.granularity,
|
|
perPositionHeight : options.perPositionHeight,
|
|
closeTop : options.closeTop,
|
|
closeBottom : options.closeBottom,
|
|
offsetAttribute : options.offsetAttribute,
|
|
arcType : options.arcType
|
|
};
|
|
return new PolygonGeometry(newOptions);
|
|
};
|
|
|
|
/**
|
|
* Stores the provided instance into the provided array.
|
|
*
|
|
* @param {PolygonGeometry} 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
|
|
*/
|
|
PolygonGeometry.pack = function(value, array, startingIndex) {
|
|
//>>includeStart('debug', pragmas.debug);
|
|
Check.Check.typeOf.object('value', value);
|
|
Check.Check.defined('array', array);
|
|
//>>includeEnd('debug');
|
|
|
|
startingIndex = when.defaultValue(startingIndex, 0);
|
|
|
|
startingIndex = PolygonGeometryLibrary.PolygonGeometryLibrary.packPolygonHierarchy(value._polygonHierarchy, array, startingIndex);
|
|
|
|
Cartesian2.Ellipsoid.pack(value._ellipsoid, array, startingIndex);
|
|
startingIndex += Cartesian2.Ellipsoid.packedLength;
|
|
|
|
VertexFormat.VertexFormat.pack(value._vertexFormat, array, startingIndex);
|
|
startingIndex += VertexFormat.VertexFormat.packedLength;
|
|
|
|
array[startingIndex++] = value._height;
|
|
array[startingIndex++] = value._extrudedHeight;
|
|
array[startingIndex++] = value._granularity;
|
|
array[startingIndex++] = value._stRotation;
|
|
array[startingIndex++] = value._perPositionHeightExtrude ? 1.0 : 0.0;
|
|
array[startingIndex++] = value._perPositionHeight ? 1.0 : 0.0;
|
|
array[startingIndex++] = value._closeTop ? 1.0 : 0.0;
|
|
array[startingIndex++] = value._closeBottom ? 1.0 : 0.0;
|
|
array[startingIndex++] = value._shadowVolume ? 1.0 : 0.0;
|
|
array[startingIndex++] = when.defaultValue(value._offsetAttribute, -1);
|
|
array[startingIndex++] = value._arcType;
|
|
array[startingIndex] = value.packedLength;
|
|
|
|
return array;
|
|
};
|
|
|
|
var scratchEllipsoid = Cartesian2.Ellipsoid.clone(Cartesian2.Ellipsoid.UNIT_SPHERE);
|
|
var scratchVertexFormat = new VertexFormat.VertexFormat();
|
|
|
|
//Only used to avoid inability to default construct.
|
|
var dummyOptions = {
|
|
polygonHierarchy : {}
|
|
};
|
|
|
|
/**
|
|
* 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 {PolygonGeometry} [result] The object into which to store the result.
|
|
*/
|
|
PolygonGeometry.unpack = function(array, startingIndex, result) {
|
|
//>>includeStart('debug', pragmas.debug);
|
|
Check.Check.defined('array', array);
|
|
//>>includeEnd('debug');
|
|
|
|
startingIndex = when.defaultValue(startingIndex, 0);
|
|
|
|
var polygonHierarchy = PolygonGeometryLibrary.PolygonGeometryLibrary.unpackPolygonHierarchy(array, startingIndex);
|
|
startingIndex = polygonHierarchy.startingIndex;
|
|
delete polygonHierarchy.startingIndex;
|
|
|
|
var ellipsoid = Cartesian2.Ellipsoid.unpack(array, startingIndex, scratchEllipsoid);
|
|
startingIndex += Cartesian2.Ellipsoid.packedLength;
|
|
|
|
var vertexFormat = VertexFormat.VertexFormat.unpack(array, startingIndex, scratchVertexFormat);
|
|
startingIndex += VertexFormat.VertexFormat.packedLength;
|
|
|
|
var height = array[startingIndex++];
|
|
var extrudedHeight = array[startingIndex++];
|
|
var granularity = array[startingIndex++];
|
|
var stRotation = array[startingIndex++];
|
|
var perPositionHeightExtrude = array[startingIndex++] === 1.0;
|
|
var perPositionHeight = array[startingIndex++] === 1.0;
|
|
var closeTop = array[startingIndex++] === 1.0;
|
|
var closeBottom = array[startingIndex++] === 1.0;
|
|
var shadowVolume = array[startingIndex++] === 1.0;
|
|
var offsetAttribute = array[startingIndex++];
|
|
var arcType = array[startingIndex++];
|
|
var packedLength = array[startingIndex];
|
|
|
|
if (!when.defined(result)) {
|
|
result = new PolygonGeometry(dummyOptions);
|
|
}
|
|
|
|
result._polygonHierarchy = polygonHierarchy;
|
|
result._ellipsoid = Cartesian2.Ellipsoid.clone(ellipsoid, result._ellipsoid);
|
|
result._vertexFormat = VertexFormat.VertexFormat.clone(vertexFormat, result._vertexFormat);
|
|
result._height = height;
|
|
result._extrudedHeight = extrudedHeight;
|
|
result._granularity = granularity;
|
|
result._stRotation = stRotation;
|
|
result._perPositionHeightExtrude = perPositionHeightExtrude;
|
|
result._perPositionHeight = perPositionHeight;
|
|
result._closeTop = closeTop;
|
|
result._closeBottom = closeBottom;
|
|
result._shadowVolume = shadowVolume;
|
|
result._offsetAttribute = offsetAttribute === -1 ? undefined : offsetAttribute;
|
|
result._arcType = arcType;
|
|
result.packedLength = packedLength;
|
|
return result;
|
|
};
|
|
|
|
/**
|
|
* Returns the bounding rectangle given the provided options
|
|
*
|
|
* @param {Object} options Object with the following properties:
|
|
* @param {PolygonHierarchy} options.polygonHierarchy A polygon hierarchy that can include holes.
|
|
* @param {Number} [options.granularity=CesiumMath.RADIANS_PER_DEGREE] The distance, in radians, between each latitude and longitude. Determines the number of positions sampled.
|
|
* @param {ArcType} [options.arcType=ArcType.GEODESIC] The type of line the polygon edges must follow. Valid options are {@link ArcType.GEODESIC} and {@link ArcType.RHUMB}.
|
|
* @param {Ellipsoid} [options.ellipsoid=Ellipsoid.WGS84] The ellipsoid to be used as a reference.
|
|
* @param {Rectangle} [result] An object in which to store the result.
|
|
*
|
|
* @returns {Rectangle} The result rectangle
|
|
*/
|
|
PolygonGeometry.computeRectangle = function(options, result) {
|
|
//>>includeStart('debug', pragmas.debug);
|
|
Check.Check.typeOf.object('options', options);
|
|
Check.Check.typeOf.object('options.polygonHierarchy', options.polygonHierarchy);
|
|
//>>includeEnd('debug');
|
|
|
|
var granularity = when.defaultValue(options.granularity, _Math.CesiumMath.RADIANS_PER_DEGREE);
|
|
var arcType = when.defaultValue(options.arcType, ArcType.ArcType.GEODESIC);
|
|
//>>includeStart('debug', pragmas.debug);
|
|
if (arcType !== ArcType.ArcType.GEODESIC && arcType !== ArcType.ArcType.RHUMB) {
|
|
throw new Check.DeveloperError('Invalid arcType. Valid options are ArcType.GEODESIC and ArcType.RHUMB.');
|
|
}
|
|
//>>includeEnd('debug');
|
|
|
|
var polygonHierarchy = options.polygonHierarchy;
|
|
var ellipsoid = when.defaultValue(options.ellipsoid, Cartesian2.Ellipsoid.WGS84);
|
|
|
|
return computeRectangle(polygonHierarchy.positions, ellipsoid, arcType, granularity, result);
|
|
};
|
|
|
|
/**
|
|
* Computes the geometric representation of a polygon, including its vertices, indices, and a bounding sphere.
|
|
*
|
|
* @param {PolygonGeometry} polygonGeometry A description of the polygon.
|
|
* @returns {Geometry|undefined} The computed vertices and indices.
|
|
*/
|
|
PolygonGeometry.createGeometry = function(polygonGeometry) {
|
|
var vertexFormat = polygonGeometry._vertexFormat;
|
|
var ellipsoid = polygonGeometry._ellipsoid;
|
|
var granularity = polygonGeometry._granularity;
|
|
var stRotation = polygonGeometry._stRotation;
|
|
var polygonHierarchy = polygonGeometry._polygonHierarchy;
|
|
var perPositionHeight = polygonGeometry._perPositionHeight;
|
|
var closeTop = polygonGeometry._closeTop;
|
|
var closeBottom = polygonGeometry._closeBottom;
|
|
var arcType = polygonGeometry._arcType;
|
|
|
|
var outerPositions = polygonHierarchy.positions;
|
|
if (outerPositions.length < 3) {
|
|
return;
|
|
}
|
|
|
|
var tangentPlane = EllipsoidTangentPlane.EllipsoidTangentPlane.fromPoints(outerPositions, ellipsoid);
|
|
|
|
var results = PolygonGeometryLibrary.PolygonGeometryLibrary.polygonsFromHierarchy(polygonHierarchy, tangentPlane.projectPointsOntoPlane.bind(tangentPlane), !perPositionHeight, ellipsoid);
|
|
|
|
var hierarchy = results.hierarchy;
|
|
var polygons = results.polygons;
|
|
|
|
if (hierarchy.length === 0) {
|
|
return;
|
|
}
|
|
|
|
outerPositions = hierarchy[0].outerRing;
|
|
var boundingRectangle = PolygonGeometryLibrary.PolygonGeometryLibrary.computeBoundingRectangle(tangentPlane.plane.normal, tangentPlane.projectPointOntoPlane.bind(tangentPlane), outerPositions, stRotation, scratchBoundingRectangle);
|
|
|
|
var geometries = [];
|
|
|
|
var height = polygonGeometry._height;
|
|
var extrudedHeight = polygonGeometry._extrudedHeight;
|
|
var extrude = polygonGeometry._perPositionHeightExtrude || !_Math.CesiumMath.equalsEpsilon(height, extrudedHeight, 0, _Math.CesiumMath.EPSILON2);
|
|
|
|
var options = {
|
|
perPositionHeight: perPositionHeight,
|
|
vertexFormat: vertexFormat,
|
|
geometry: undefined,
|
|
tangentPlane: tangentPlane,
|
|
boundingRectangle: boundingRectangle,
|
|
ellipsoid: ellipsoid,
|
|
stRotation: stRotation,
|
|
bottom: false,
|
|
top: true,
|
|
wall: false,
|
|
extrude: false,
|
|
arcType: arcType
|
|
};
|
|
|
|
var i;
|
|
|
|
if (extrude) {
|
|
options.extrude = true;
|
|
options.top = closeTop;
|
|
options.bottom = closeBottom;
|
|
options.shadowVolume = polygonGeometry._shadowVolume;
|
|
options.offsetAttribute = polygonGeometry._offsetAttribute;
|
|
for (i = 0; i < polygons.length; i++) {
|
|
var splitGeometry = createGeometryFromPositionsExtruded(ellipsoid, polygons[i], granularity, hierarchy[i], perPositionHeight, closeTop, closeBottom, vertexFormat, arcType);
|
|
|
|
var topAndBottom;
|
|
if (closeTop && closeBottom) {
|
|
topAndBottom = splitGeometry.topAndBottom;
|
|
options.geometry = PolygonGeometryLibrary.PolygonGeometryLibrary.scaleToGeodeticHeightExtruded(topAndBottom.geometry, height, extrudedHeight, ellipsoid, perPositionHeight);
|
|
} else if (closeTop) {
|
|
topAndBottom = splitGeometry.topAndBottom;
|
|
topAndBottom.geometry.attributes.position.values = PolygonPipeline.PolygonPipeline.scaleToGeodeticHeight(topAndBottom.geometry.attributes.position.values, height, ellipsoid, !perPositionHeight);
|
|
options.geometry = topAndBottom.geometry;
|
|
} else if (closeBottom) {
|
|
topAndBottom = splitGeometry.topAndBottom;
|
|
topAndBottom.geometry.attributes.position.values = PolygonPipeline.PolygonPipeline.scaleToGeodeticHeight(topAndBottom.geometry.attributes.position.values, extrudedHeight, ellipsoid, true);
|
|
options.geometry = topAndBottom.geometry;
|
|
}
|
|
if (closeTop || closeBottom) {
|
|
options.wall = false;
|
|
topAndBottom.geometry = computeAttributes(options);
|
|
geometries.push(topAndBottom);
|
|
}
|
|
|
|
var walls = splitGeometry.walls;
|
|
options.wall = true;
|
|
for ( var k = 0; k < walls.length; k++) {
|
|
var wall = walls[k];
|
|
options.geometry = PolygonGeometryLibrary.PolygonGeometryLibrary.scaleToGeodeticHeightExtruded(wall.geometry, height, extrudedHeight, ellipsoid, perPositionHeight);
|
|
wall.geometry = computeAttributes(options);
|
|
geometries.push(wall);
|
|
}
|
|
}
|
|
} else {
|
|
for (i = 0; i < polygons.length; i++) {
|
|
var geometryInstance = new GeometryInstance.GeometryInstance({
|
|
geometry : PolygonGeometryLibrary.PolygonGeometryLibrary.createGeometryFromPositions(ellipsoid, polygons[i], granularity, perPositionHeight, vertexFormat, arcType)
|
|
});
|
|
geometryInstance.geometry.attributes.position.values = PolygonPipeline.PolygonPipeline.scaleToGeodeticHeight(geometryInstance.geometry.attributes.position.values, height, ellipsoid, !perPositionHeight);
|
|
options.geometry = geometryInstance.geometry;
|
|
geometryInstance.geometry = computeAttributes(options);
|
|
|
|
if (when.defined(polygonGeometry._offsetAttribute)) {
|
|
var length = geometryInstance.geometry.attributes.position.values.length;
|
|
var applyOffset = new Uint8Array(length / 3);
|
|
var offsetValue = polygonGeometry._offsetAttribute === GeometryOffsetAttribute.GeometryOffsetAttribute.NONE ? 0 : 1;
|
|
GeometryOffsetAttribute.arrayFill(applyOffset, offsetValue);
|
|
geometryInstance.geometry.attributes.applyOffset = new GeometryAttribute.GeometryAttribute({
|
|
componentDatatype : ComponentDatatype.ComponentDatatype.UNSIGNED_BYTE,
|
|
componentsPerAttribute : 1,
|
|
values: applyOffset
|
|
});
|
|
}
|
|
|
|
geometries.push(geometryInstance);
|
|
}
|
|
}
|
|
|
|
var geometry = GeometryPipeline.GeometryPipeline.combineInstances(geometries)[0];
|
|
geometry.attributes.position.values = new Float64Array(geometry.attributes.position.values);
|
|
geometry.indices = IndexDatatype.IndexDatatype.createTypedArray(geometry.attributes.position.values.length / 3, geometry.indices);
|
|
|
|
var attributes = geometry.attributes;
|
|
var boundingSphere = Transforms.BoundingSphere.fromVertices(attributes.position.values);
|
|
|
|
if (!vertexFormat.position) {
|
|
delete attributes.position;
|
|
}
|
|
|
|
return new GeometryAttribute.Geometry({
|
|
attributes : attributes,
|
|
indices : geometry.indices,
|
|
primitiveType : geometry.primitiveType,
|
|
boundingSphere : boundingSphere,
|
|
offsetAttribute : polygonGeometry._offsetAttribute
|
|
});
|
|
};
|
|
|
|
/**
|
|
* @private
|
|
*/
|
|
PolygonGeometry.createShadowVolume = function(polygonGeometry, minHeightFunc, maxHeightFunc) {
|
|
var granularity = polygonGeometry._granularity;
|
|
var ellipsoid = polygonGeometry._ellipsoid;
|
|
|
|
var minHeight = minHeightFunc(granularity, ellipsoid);
|
|
var maxHeight = maxHeightFunc(granularity, ellipsoid);
|
|
|
|
return new PolygonGeometry({
|
|
polygonHierarchy : polygonGeometry._polygonHierarchy,
|
|
ellipsoid : ellipsoid,
|
|
stRotation : polygonGeometry._stRotation,
|
|
granularity : granularity,
|
|
perPositionHeight : false,
|
|
extrudedHeight : minHeight,
|
|
height : maxHeight,
|
|
vertexFormat : VertexFormat.VertexFormat.POSITION_ONLY,
|
|
shadowVolume: true,
|
|
arcType : polygonGeometry._arcType
|
|
});
|
|
};
|
|
|
|
function textureCoordinateRotationPoints(polygonGeometry) {
|
|
var stRotation = -polygonGeometry._stRotation;
|
|
if (stRotation === 0.0) {
|
|
return [0, 0, 0, 1, 1, 0];
|
|
}
|
|
var ellipsoid = polygonGeometry._ellipsoid;
|
|
var positions = polygonGeometry._polygonHierarchy.positions;
|
|
var boundingRectangle = polygonGeometry.rectangle;
|
|
return GeometryAttribute.Geometry._textureCoordinateRotationPoints(positions, stRotation, ellipsoid, boundingRectangle);
|
|
}
|
|
|
|
Object.defineProperties(PolygonGeometry.prototype, {
|
|
/**
|
|
* @private
|
|
*/
|
|
rectangle : {
|
|
get : function() {
|
|
if (!when.defined(this._rectangle)) {
|
|
var positions = this._polygonHierarchy.positions;
|
|
this._rectangle = computeRectangle(positions, this._ellipsoid, this._arcType, this._granularity);
|
|
}
|
|
|
|
return this._rectangle;
|
|
}
|
|
},
|
|
/**
|
|
* For remapping texture coordinates when rendering PolygonGeometries as GroundPrimitives.
|
|
* @private
|
|
*/
|
|
textureCoordinateRotationPoints : {
|
|
get : function() {
|
|
if (!when.defined(this._textureCoordinateRotationPoints)) {
|
|
this._textureCoordinateRotationPoints = textureCoordinateRotationPoints(this);
|
|
}
|
|
return this._textureCoordinateRotationPoints;
|
|
}
|
|
}
|
|
});
|
|
|
|
function createPolygonGeometry(polygonGeometry, offset) {
|
|
if (when.defined(offset)) {
|
|
polygonGeometry = PolygonGeometry.unpack(polygonGeometry, offset);
|
|
}
|
|
polygonGeometry._ellipsoid = Cartesian2.Ellipsoid.clone(polygonGeometry._ellipsoid);
|
|
return PolygonGeometry.createGeometry(polygonGeometry);
|
|
}
|
|
|
|
return createPolygonGeometry;
|
|
|
|
});
|
|
//# sourceMappingURL=createPolygonGeometry.js.map
|