1368 lines
50 KiB
JavaScript
1368 lines
50 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/main/LICENSE.md for full licensing details.
|
||
|
|
*/
|
||
|
|
|
||
|
|
define(['./when-4bbc8319', './Matrix2-265d9610', './ArcType-fc72c06c', './GeometryOffsetAttribute-7e016332', './BoundingRectangle-8f2409a1', './Transforms-8b90e17c', './RuntimeError-5b082e8f', './ComponentDatatype-aad54330', './EllipsoidGeodesic-ed024f16', './EllipsoidTangentPlane-f1a69a20', './GeometryAttribute-4bcb785f', './GeometryInstance-d57564f8', './GeometryPipeline-e93f6439', './IndexDatatype-6739e544', './PolygonGeometryLibrary-e329b948', './PolygonPipeline-5fd67ae2', './VertexFormat-07539138', './combine-e9466e32', './WebGLConstants-508b9636', './AxisAlignedBoundingBox-2a0ca7ef', './IntersectionTests-596e31ec', './Plane-616c9c0a', './AttributeCompression-442278a0', './EncodedCartesian3-da8f96bc', './arrayRemoveDuplicates-65de6756', './EllipsoidRhumbLine-d09d563f', './GeometryAttributes-7827a6c2'], (function (when, Matrix2, ArcType, GeometryOffsetAttribute, BoundingRectangle, Transforms, RuntimeError, ComponentDatatype, EllipsoidGeodesic, EllipsoidTangentPlane, GeometryAttribute, GeometryInstance, GeometryPipeline, IndexDatatype, PolygonGeometryLibrary, PolygonPipeline, VertexFormat, combine, WebGLConstants, AxisAlignedBoundingBox, IntersectionTests, Plane, AttributeCompression, EncodedCartesian3, arrayRemoveDuplicates, EllipsoidRhumbLine, GeometryAttributes) { 'use strict';
|
||
|
|
|
||
|
|
const scratchCarto1 = new Matrix2.Cartographic();
|
||
|
|
const scratchCarto2 = new Matrix2.Cartographic();
|
||
|
|
function adjustPosHeightsForNormal(position, p1, p2, ellipsoid) {
|
||
|
|
const carto1 = ellipsoid.cartesianToCartographic(position, scratchCarto1);
|
||
|
|
const height = carto1.height;
|
||
|
|
const p1Carto = ellipsoid.cartesianToCartographic(p1, scratchCarto2);
|
||
|
|
p1Carto.height = height;
|
||
|
|
ellipsoid.cartographicToCartesian(p1Carto, p1);
|
||
|
|
|
||
|
|
const p2Carto = ellipsoid.cartesianToCartographic(p2, scratchCarto2);
|
||
|
|
p2Carto.height = height - 100;
|
||
|
|
ellipsoid.cartographicToCartesian(p2Carto, p2);
|
||
|
|
}
|
||
|
|
|
||
|
|
const scratchBoundingRectangle = new BoundingRectangle.BoundingRectangle();
|
||
|
|
const scratchPosition = new Matrix2.Cartesian3();
|
||
|
|
const scratchNormal = new Matrix2.Cartesian3();
|
||
|
|
const scratchTangent = new Matrix2.Cartesian3();
|
||
|
|
const scratchBitangent = new Matrix2.Cartesian3();
|
||
|
|
const p1Scratch = new Matrix2.Cartesian3();
|
||
|
|
const p2Scratch = new Matrix2.Cartesian3();
|
||
|
|
let scratchPerPosNormal = new Matrix2.Cartesian3();
|
||
|
|
let scratchPerPosTangent = new Matrix2.Cartesian3();
|
||
|
|
let scratchPerPosBitangent = new Matrix2.Cartesian3();
|
||
|
|
|
||
|
|
const appendTextureCoordinatesOrigin = new Matrix2.Cartesian2();
|
||
|
|
const appendTextureCoordinatesCartesian2 = new Matrix2.Cartesian2();
|
||
|
|
const appendTextureCoordinatesCartesian3 = new Matrix2.Cartesian3();
|
||
|
|
const appendTextureCoordinatesQuaternion = new Transforms.Quaternion();
|
||
|
|
const appendTextureCoordinatesMatrix3 = new Matrix2.Matrix3();
|
||
|
|
const tangentMatrixScratch = new Matrix2.Matrix3();
|
||
|
|
|
||
|
|
function computeAttributes(options) {
|
||
|
|
const vertexFormat = options.vertexFormat;
|
||
|
|
const geometry = options.geometry;
|
||
|
|
const shadowVolume = options.shadowVolume;
|
||
|
|
const flatPositions = geometry.attributes.position.values;
|
||
|
|
let length = flatPositions.length;
|
||
|
|
const wall = options.wall;
|
||
|
|
const top = options.top || wall;
|
||
|
|
const 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.
|
||
|
|
const boundingRectangle = options.boundingRectangle;
|
||
|
|
const tangentPlane = options.tangentPlane;
|
||
|
|
const ellipsoid = options.ellipsoid;
|
||
|
|
const stRotation = options.stRotation;
|
||
|
|
const perPositionHeight = options.perPositionHeight;
|
||
|
|
|
||
|
|
const origin = appendTextureCoordinatesOrigin;
|
||
|
|
origin.x = boundingRectangle.x;
|
||
|
|
origin.y = boundingRectangle.y;
|
||
|
|
|
||
|
|
const textureCoordinates = vertexFormat.st
|
||
|
|
? new Float32Array(2 * (length / 3))
|
||
|
|
: undefined;
|
||
|
|
let normals;
|
||
|
|
if (vertexFormat.normal) {
|
||
|
|
if (perPositionHeight && top && !wall) {
|
||
|
|
normals = geometry.attributes.normal.values;
|
||
|
|
} else {
|
||
|
|
normals = new Float32Array(length);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
const tangents = vertexFormat.tangent
|
||
|
|
? new Float32Array(length)
|
||
|
|
: undefined;
|
||
|
|
const bitangents = vertexFormat.bitangent
|
||
|
|
? new Float32Array(length)
|
||
|
|
: undefined;
|
||
|
|
const extrudeNormals = shadowVolume ? new Float32Array(length) : undefined;
|
||
|
|
|
||
|
|
let textureCoordIndex = 0;
|
||
|
|
let attrIndex = 0;
|
||
|
|
|
||
|
|
let normal = scratchNormal;
|
||
|
|
let tangent = scratchTangent;
|
||
|
|
let bitangent = scratchBitangent;
|
||
|
|
let recomputeNormal = true;
|
||
|
|
|
||
|
|
let textureMatrix = appendTextureCoordinatesMatrix3;
|
||
|
|
let tangentRotationMatrix = tangentMatrixScratch;
|
||
|
|
if (stRotation !== 0.0) {
|
||
|
|
let rotation = Transforms.Quaternion.fromAxisAngle(
|
||
|
|
tangentPlane._plane.normal,
|
||
|
|
stRotation,
|
||
|
|
appendTextureCoordinatesQuaternion
|
||
|
|
);
|
||
|
|
textureMatrix = Matrix2.Matrix3.fromQuaternion(rotation, textureMatrix);
|
||
|
|
|
||
|
|
rotation = Transforms.Quaternion.fromAxisAngle(
|
||
|
|
tangentPlane._plane.normal,
|
||
|
|
-stRotation,
|
||
|
|
appendTextureCoordinatesQuaternion
|
||
|
|
);
|
||
|
|
tangentRotationMatrix = Matrix2.Matrix3.fromQuaternion(
|
||
|
|
rotation,
|
||
|
|
tangentRotationMatrix
|
||
|
|
);
|
||
|
|
} else {
|
||
|
|
textureMatrix = Matrix2.Matrix3.clone(Matrix2.Matrix3.IDENTITY, textureMatrix);
|
||
|
|
tangentRotationMatrix = Matrix2.Matrix3.clone(
|
||
|
|
Matrix2.Matrix3.IDENTITY,
|
||
|
|
tangentRotationMatrix
|
||
|
|
);
|
||
|
|
}
|
||
|
|
|
||
|
|
let bottomOffset = 0;
|
||
|
|
let bottomOffset2 = 0;
|
||
|
|
|
||
|
|
if (top && bottom) {
|
||
|
|
bottomOffset = length / 2;
|
||
|
|
bottomOffset2 = length / 3;
|
||
|
|
|
||
|
|
length /= 2;
|
||
|
|
}
|
||
|
|
|
||
|
|
for (let i = 0; i < length; i += 3) {
|
||
|
|
const position = Matrix2.Cartesian3.fromArray(
|
||
|
|
flatPositions,
|
||
|
|
i,
|
||
|
|
appendTextureCoordinatesCartesian3
|
||
|
|
);
|
||
|
|
|
||
|
|
if (vertexFormat.st) {
|
||
|
|
let p = Matrix2.Matrix3.multiplyByVector(
|
||
|
|
textureMatrix,
|
||
|
|
position,
|
||
|
|
scratchPosition
|
||
|
|
);
|
||
|
|
p = ellipsoid.scaleToGeodeticSurface(p, p);
|
||
|
|
const st = tangentPlane.projectPointOntoPlane(
|
||
|
|
p,
|
||
|
|
appendTextureCoordinatesCartesian2
|
||
|
|
);
|
||
|
|
Matrix2.Cartesian2.subtract(st, origin, st);
|
||
|
|
|
||
|
|
const stx = ComponentDatatype.CesiumMath.clamp(st.x / boundingRectangle.width, 0, 1);
|
||
|
|
const sty = ComponentDatatype.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
|
||
|
|
) {
|
||
|
|
const attrIndex1 = attrIndex + 1;
|
||
|
|
const attrIndex2 = attrIndex + 2;
|
||
|
|
|
||
|
|
if (wall) {
|
||
|
|
if (i + 3 < length) {
|
||
|
|
const p1 = Matrix2.Cartesian3.fromArray(flatPositions, i + 3, p1Scratch);
|
||
|
|
|
||
|
|
if (recomputeNormal) {
|
||
|
|
const p2 = Matrix2.Cartesian3.fromArray(
|
||
|
|
flatPositions,
|
||
|
|
i + length,
|
||
|
|
p2Scratch
|
||
|
|
);
|
||
|
|
if (perPositionHeight) {
|
||
|
|
adjustPosHeightsForNormal(position, p1, p2, ellipsoid);
|
||
|
|
}
|
||
|
|
Matrix2.Cartesian3.subtract(p1, position, p1);
|
||
|
|
Matrix2.Cartesian3.subtract(p2, position, p2);
|
||
|
|
normal = Matrix2.Cartesian3.normalize(
|
||
|
|
Matrix2.Cartesian3.cross(p2, p1, normal),
|
||
|
|
normal
|
||
|
|
);
|
||
|
|
recomputeNormal = false;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (Matrix2.Cartesian3.equalsEpsilon(p1, position, ComponentDatatype.CesiumMath.EPSILON10)) {
|
||
|
|
// if we've reached a corner
|
||
|
|
recomputeNormal = true;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (vertexFormat.tangent || vertexFormat.bitangent) {
|
||
|
|
bitangent = ellipsoid.geodeticSurfaceNormal(position, bitangent);
|
||
|
|
if (vertexFormat.tangent) {
|
||
|
|
tangent = Matrix2.Cartesian3.normalize(
|
||
|
|
Matrix2.Cartesian3.cross(bitangent, normal, tangent),
|
||
|
|
tangent
|
||
|
|
);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
normal = ellipsoid.geodeticSurfaceNormal(position, normal);
|
||
|
|
if (vertexFormat.tangent || vertexFormat.bitangent) {
|
||
|
|
if (perPositionHeight) {
|
||
|
|
scratchPerPosNormal = Matrix2.Cartesian3.fromArray(
|
||
|
|
normals,
|
||
|
|
attrIndex,
|
||
|
|
scratchPerPosNormal
|
||
|
|
);
|
||
|
|
scratchPerPosTangent = Matrix2.Cartesian3.cross(
|
||
|
|
Matrix2.Cartesian3.UNIT_Z,
|
||
|
|
scratchPerPosNormal,
|
||
|
|
scratchPerPosTangent
|
||
|
|
);
|
||
|
|
scratchPerPosTangent = Matrix2.Cartesian3.normalize(
|
||
|
|
Matrix2.Matrix3.multiplyByVector(
|
||
|
|
tangentRotationMatrix,
|
||
|
|
scratchPerPosTangent,
|
||
|
|
scratchPerPosTangent
|
||
|
|
),
|
||
|
|
scratchPerPosTangent
|
||
|
|
);
|
||
|
|
if (vertexFormat.bitangent) {
|
||
|
|
scratchPerPosBitangent = Matrix2.Cartesian3.normalize(
|
||
|
|
Matrix2.Cartesian3.cross(
|
||
|
|
scratchPerPosNormal,
|
||
|
|
scratchPerPosTangent,
|
||
|
|
scratchPerPosBitangent
|
||
|
|
),
|
||
|
|
scratchPerPosBitangent
|
||
|
|
);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
tangent = Matrix2.Cartesian3.cross(Matrix2.Cartesian3.UNIT_Z, normal, tangent);
|
||
|
|
tangent = Matrix2.Cartesian3.normalize(
|
||
|
|
Matrix2.Matrix3.multiplyByVector(tangentRotationMatrix, tangent, tangent),
|
||
|
|
tangent
|
||
|
|
);
|
||
|
|
if (vertexFormat.bitangent) {
|
||
|
|
bitangent = Matrix2.Cartesian3.normalize(
|
||
|
|
Matrix2.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)) {
|
||
|
|
const size = flatPositions.length / 3;
|
||
|
|
let 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 {
|
||
|
|
const 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;
|
||
|
|
}
|
||
|
|
|
||
|
|
const startCartographicScratch = new Matrix2.Cartographic();
|
||
|
|
const endCartographicScratch = new Matrix2.Cartographic();
|
||
|
|
const idlCross = {
|
||
|
|
westOverIDL: 0.0,
|
||
|
|
eastOverIDL: 0.0,
|
||
|
|
};
|
||
|
|
let ellipsoidGeodesic = new EllipsoidGeodesic.EllipsoidGeodesic();
|
||
|
|
function computeRectangle(positions, ellipsoid, arcType, granularity, result) {
|
||
|
|
result = when.defaultValue(result, new Matrix2.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 Matrix2.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;
|
||
|
|
|
||
|
|
const inverseChordLength =
|
||
|
|
1.0 / ComponentDatatype.CesiumMath.chordLength(granularity, ellipsoid.maximumRadius);
|
||
|
|
const positionsLength = positions.length;
|
||
|
|
let endCartographic = ellipsoid.cartesianToCartographic(
|
||
|
|
positions[0],
|
||
|
|
endCartographicScratch
|
||
|
|
);
|
||
|
|
let startCartographic = startCartographicScratch;
|
||
|
|
let swap;
|
||
|
|
|
||
|
|
for (let 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 > ComponentDatatype.CesiumMath.PI) {
|
||
|
|
result.east = result.east - ComponentDatatype.CesiumMath.TWO_PI;
|
||
|
|
}
|
||
|
|
if (result.west > ComponentDatatype.CesiumMath.PI) {
|
||
|
|
result.west = result.west - ComponentDatatype.CesiumMath.TWO_PI;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return result;
|
||
|
|
}
|
||
|
|
|
||
|
|
const interpolatedCartographicScratch = new Matrix2.Cartographic();
|
||
|
|
function interpolateAndGrowRectangle(
|
||
|
|
ellipsoidGeodesic,
|
||
|
|
inverseChordLength,
|
||
|
|
result,
|
||
|
|
idlCross
|
||
|
|
) {
|
||
|
|
const segmentLength = ellipsoidGeodesic.surfaceDistance;
|
||
|
|
|
||
|
|
const numPoints = Math.ceil(segmentLength * inverseChordLength);
|
||
|
|
const subsegmentDistance =
|
||
|
|
numPoints > 0 ? segmentLength / (numPoints - 1) : Number.POSITIVE_INFINITY;
|
||
|
|
let interpolationDistance = 0.0;
|
||
|
|
|
||
|
|
for (let i = 0; i < numPoints; i++) {
|
||
|
|
const interpolatedCartographic = ellipsoidGeodesic.interpolateUsingSurfaceDistance(
|
||
|
|
interpolationDistance,
|
||
|
|
interpolatedCartographicScratch
|
||
|
|
);
|
||
|
|
interpolationDistance += subsegmentDistance;
|
||
|
|
const longitude = interpolatedCartographic.longitude;
|
||
|
|
const 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);
|
||
|
|
|
||
|
|
const lonAdjusted =
|
||
|
|
longitude >= 0 ? longitude : longitude + ComponentDatatype.CesiumMath.TWO_PI;
|
||
|
|
idlCross.westOverIDL = Math.min(idlCross.westOverIDL, lonAdjusted);
|
||
|
|
idlCross.eastOverIDL = Math.max(idlCross.eastOverIDL, lonAdjusted);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
const createGeometryFromPositionsExtrudedPositions = [];
|
||
|
|
|
||
|
|
function createGeometryFromPositionsExtruded(
|
||
|
|
ellipsoid,
|
||
|
|
polygon,
|
||
|
|
granularity,
|
||
|
|
hierarchy,
|
||
|
|
perPositionHeight,
|
||
|
|
closeTop,
|
||
|
|
closeBottom,
|
||
|
|
vertexFormat,
|
||
|
|
arcType
|
||
|
|
) {
|
||
|
|
const geos = {
|
||
|
|
walls: [],
|
||
|
|
};
|
||
|
|
let i;
|
||
|
|
|
||
|
|
if (closeTop || closeBottom) {
|
||
|
|
const topGeo = PolygonGeometryLibrary.PolygonGeometryLibrary.createGeometryFromPositions(
|
||
|
|
ellipsoid,
|
||
|
|
polygon,
|
||
|
|
granularity,
|
||
|
|
perPositionHeight,
|
||
|
|
vertexFormat,
|
||
|
|
arcType
|
||
|
|
);
|
||
|
|
|
||
|
|
const edgePoints = topGeo.attributes.position.values;
|
||
|
|
const indices = topGeo.indices;
|
||
|
|
let numPositions;
|
||
|
|
let newIndices;
|
||
|
|
|
||
|
|
if (closeTop && closeBottom) {
|
||
|
|
const topBottomPositions = edgePoints.concat(edgePoints);
|
||
|
|
|
||
|
|
numPositions = topBottomPositions.length / 3;
|
||
|
|
|
||
|
|
newIndices = IndexDatatype.IndexDatatype.createTypedArray(
|
||
|
|
numPositions,
|
||
|
|
indices.length * 2
|
||
|
|
);
|
||
|
|
newIndices.set(indices);
|
||
|
|
const ilength = indices.length;
|
||
|
|
|
||
|
|
const length = numPositions / 2;
|
||
|
|
|
||
|
|
for (i = 0; i < ilength; i += 3) {
|
||
|
|
const i0 = newIndices[i] + length;
|
||
|
|
const i1 = newIndices[i + 1] + length;
|
||
|
|
const 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) {
|
||
|
|
const 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,
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
let outerRing = hierarchy.outerRing;
|
||
|
|
let tangentPlane = EllipsoidTangentPlane.EllipsoidTangentPlane.fromPoints(outerRing, ellipsoid);
|
||
|
|
let positions2D = tangentPlane.projectPointsOntoPlane(
|
||
|
|
outerRing,
|
||
|
|
createGeometryFromPositionsExtrudedPositions
|
||
|
|
);
|
||
|
|
|
||
|
|
let windingOrder = PolygonPipeline.PolygonPipeline.computeWindingOrder2D(positions2D);
|
||
|
|
if (windingOrder === PolygonPipeline.WindingOrder.CLOCKWISE) {
|
||
|
|
outerRing = outerRing.slice().reverse();
|
||
|
|
}
|
||
|
|
|
||
|
|
let wallGeo = PolygonGeometryLibrary.PolygonGeometryLibrary.computeWallGeometry(
|
||
|
|
outerRing,
|
||
|
|
ellipsoid,
|
||
|
|
granularity,
|
||
|
|
perPositionHeight,
|
||
|
|
arcType
|
||
|
|
);
|
||
|
|
geos.walls.push(
|
||
|
|
new GeometryInstance.GeometryInstance({
|
||
|
|
geometry: wallGeo,
|
||
|
|
})
|
||
|
|
);
|
||
|
|
|
||
|
|
const holes = hierarchy.holes;
|
||
|
|
for (i = 0; i < holes.length; i++) {
|
||
|
|
let 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
|
||
|
|
* const 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
|
||
|
|
* ])
|
||
|
|
* )
|
||
|
|
* });
|
||
|
|
* const geometry = Cesium.PolygonGeometry.createGeometry(polygon);
|
||
|
|
*
|
||
|
|
* // 2. create a nested polygon with holes
|
||
|
|
* const 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
|
||
|
|
* ])
|
||
|
|
* )]
|
||
|
|
* )]
|
||
|
|
* )]
|
||
|
|
* )
|
||
|
|
* });
|
||
|
|
* const geometry = Cesium.PolygonGeometry.createGeometry(polygonWithHole);
|
||
|
|
*
|
||
|
|
* // 3. create extruded polygon
|
||
|
|
* const 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
|
||
|
|
* });
|
||
|
|
* const geometry = Cesium.PolygonGeometry.createGeometry(extrudedPolygon);
|
||
|
|
*/
|
||
|
|
function PolygonGeometry(options) {
|
||
|
|
//>>includeStart('debug', pragmas.debug);
|
||
|
|
RuntimeError.Check.typeOf.object("options", options);
|
||
|
|
RuntimeError.Check.typeOf.object("options.polygonHierarchy", options.polygonHierarchy);
|
||
|
|
if (
|
||
|
|
when.defined(options.perPositionHeight) &&
|
||
|
|
options.perPositionHeight &&
|
||
|
|
when.defined(options.height)
|
||
|
|
) {
|
||
|
|
throw new RuntimeError.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 RuntimeError.DeveloperError(
|
||
|
|
"Invalid arcType. Valid options are ArcType.GEODESIC and ArcType.RHUMB."
|
||
|
|
);
|
||
|
|
}
|
||
|
|
//>>includeEnd('debug');
|
||
|
|
|
||
|
|
const polygonHierarchy = options.polygonHierarchy;
|
||
|
|
const vertexFormat = when.defaultValue(options.vertexFormat, VertexFormat.VertexFormat.DEFAULT);
|
||
|
|
const ellipsoid = when.defaultValue(options.ellipsoid, Matrix2.Ellipsoid.WGS84);
|
||
|
|
const granularity = when.defaultValue(
|
||
|
|
options.granularity,
|
||
|
|
ComponentDatatype.CesiumMath.RADIANS_PER_DEGREE
|
||
|
|
);
|
||
|
|
const stRotation = when.defaultValue(options.stRotation, 0.0);
|
||
|
|
const perPositionHeight = when.defaultValue(options.perPositionHeight, false);
|
||
|
|
const perPositionHeightExtrude =
|
||
|
|
perPositionHeight && when.defined(options.extrudedHeight);
|
||
|
|
let height = when.defaultValue(options.height, 0.0);
|
||
|
|
let extrudedHeight = when.defaultValue(options.extrudedHeight, height);
|
||
|
|
|
||
|
|
if (!perPositionHeightExtrude) {
|
||
|
|
const h = Math.max(height, extrudedHeight);
|
||
|
|
extrudedHeight = Math.min(height, extrudedHeight);
|
||
|
|
height = h;
|
||
|
|
}
|
||
|
|
|
||
|
|
this._vertexFormat = VertexFormat.VertexFormat.clone(vertexFormat);
|
||
|
|
this._ellipsoid = Matrix2.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) +
|
||
|
|
Matrix2.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
|
||
|
|
* const 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
|
||
|
|
* ])
|
||
|
|
* });
|
||
|
|
* const geometry = Cesium.PolygonGeometry.createGeometry(polygon);
|
||
|
|
*
|
||
|
|
* @see PolygonGeometry#createGeometry
|
||
|
|
*/
|
||
|
|
PolygonGeometry.fromPositions = function (options) {
|
||
|
|
options = when.defaultValue(options, when.defaultValue.EMPTY_OBJECT);
|
||
|
|
|
||
|
|
//>>includeStart('debug', pragmas.debug);
|
||
|
|
RuntimeError.Check.defined("options.positions", options.positions);
|
||
|
|
//>>includeEnd('debug');
|
||
|
|
|
||
|
|
const 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);
|
||
|
|
RuntimeError.Check.typeOf.object("value", value);
|
||
|
|
RuntimeError.Check.defined("array", array);
|
||
|
|
//>>includeEnd('debug');
|
||
|
|
|
||
|
|
startingIndex = when.defaultValue(startingIndex, 0);
|
||
|
|
|
||
|
|
startingIndex = PolygonGeometryLibrary.PolygonGeometryLibrary.packPolygonHierarchy(
|
||
|
|
value._polygonHierarchy,
|
||
|
|
array,
|
||
|
|
startingIndex
|
||
|
|
);
|
||
|
|
|
||
|
|
Matrix2.Ellipsoid.pack(value._ellipsoid, array, startingIndex);
|
||
|
|
startingIndex += Matrix2.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;
|
||
|
|
};
|
||
|
|
|
||
|
|
const scratchEllipsoid = Matrix2.Ellipsoid.clone(Matrix2.Ellipsoid.UNIT_SPHERE);
|
||
|
|
const scratchVertexFormat = new VertexFormat.VertexFormat();
|
||
|
|
|
||
|
|
//Only used to avoid inability to default construct.
|
||
|
|
const 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);
|
||
|
|
RuntimeError.Check.defined("array", array);
|
||
|
|
//>>includeEnd('debug');
|
||
|
|
|
||
|
|
startingIndex = when.defaultValue(startingIndex, 0);
|
||
|
|
|
||
|
|
const polygonHierarchy = PolygonGeometryLibrary.PolygonGeometryLibrary.unpackPolygonHierarchy(
|
||
|
|
array,
|
||
|
|
startingIndex
|
||
|
|
);
|
||
|
|
startingIndex = polygonHierarchy.startingIndex;
|
||
|
|
delete polygonHierarchy.startingIndex;
|
||
|
|
|
||
|
|
const ellipsoid = Matrix2.Ellipsoid.unpack(array, startingIndex, scratchEllipsoid);
|
||
|
|
startingIndex += Matrix2.Ellipsoid.packedLength;
|
||
|
|
|
||
|
|
const vertexFormat = VertexFormat.VertexFormat.unpack(
|
||
|
|
array,
|
||
|
|
startingIndex,
|
||
|
|
scratchVertexFormat
|
||
|
|
);
|
||
|
|
startingIndex += VertexFormat.VertexFormat.packedLength;
|
||
|
|
|
||
|
|
const height = array[startingIndex++];
|
||
|
|
const extrudedHeight = array[startingIndex++];
|
||
|
|
const granularity = array[startingIndex++];
|
||
|
|
const stRotation = array[startingIndex++];
|
||
|
|
const perPositionHeightExtrude = array[startingIndex++] === 1.0;
|
||
|
|
const perPositionHeight = array[startingIndex++] === 1.0;
|
||
|
|
const closeTop = array[startingIndex++] === 1.0;
|
||
|
|
const closeBottom = array[startingIndex++] === 1.0;
|
||
|
|
const shadowVolume = array[startingIndex++] === 1.0;
|
||
|
|
const offsetAttribute = array[startingIndex++];
|
||
|
|
const arcType = array[startingIndex++];
|
||
|
|
const packedLength = array[startingIndex];
|
||
|
|
|
||
|
|
if (!when.defined(result)) {
|
||
|
|
result = new PolygonGeometry(dummyOptions);
|
||
|
|
}
|
||
|
|
|
||
|
|
result._polygonHierarchy = polygonHierarchy;
|
||
|
|
result._ellipsoid = Matrix2.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);
|
||
|
|
RuntimeError.Check.typeOf.object("options", options);
|
||
|
|
RuntimeError.Check.typeOf.object("options.polygonHierarchy", options.polygonHierarchy);
|
||
|
|
//>>includeEnd('debug');
|
||
|
|
|
||
|
|
const granularity = when.defaultValue(
|
||
|
|
options.granularity,
|
||
|
|
ComponentDatatype.CesiumMath.RADIANS_PER_DEGREE
|
||
|
|
);
|
||
|
|
const arcType = when.defaultValue(options.arcType, ArcType.ArcType.GEODESIC);
|
||
|
|
//>>includeStart('debug', pragmas.debug);
|
||
|
|
if (arcType !== ArcType.ArcType.GEODESIC && arcType !== ArcType.ArcType.RHUMB) {
|
||
|
|
throw new RuntimeError.DeveloperError(
|
||
|
|
"Invalid arcType. Valid options are ArcType.GEODESIC and ArcType.RHUMB."
|
||
|
|
);
|
||
|
|
}
|
||
|
|
//>>includeEnd('debug');
|
||
|
|
|
||
|
|
const polygonHierarchy = options.polygonHierarchy;
|
||
|
|
const ellipsoid = when.defaultValue(options.ellipsoid, Matrix2.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) {
|
||
|
|
const vertexFormat = polygonGeometry._vertexFormat;
|
||
|
|
const ellipsoid = polygonGeometry._ellipsoid;
|
||
|
|
const granularity = polygonGeometry._granularity;
|
||
|
|
const stRotation = polygonGeometry._stRotation;
|
||
|
|
const polygonHierarchy = polygonGeometry._polygonHierarchy;
|
||
|
|
const perPositionHeight = polygonGeometry._perPositionHeight;
|
||
|
|
const closeTop = polygonGeometry._closeTop;
|
||
|
|
const closeBottom = polygonGeometry._closeBottom;
|
||
|
|
const arcType = polygonGeometry._arcType;
|
||
|
|
|
||
|
|
let outerPositions = polygonHierarchy.positions;
|
||
|
|
if (outerPositions.length < 3) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
const tangentPlane = EllipsoidTangentPlane.EllipsoidTangentPlane.fromPoints(
|
||
|
|
outerPositions,
|
||
|
|
ellipsoid
|
||
|
|
);
|
||
|
|
|
||
|
|
const results = PolygonGeometryLibrary.PolygonGeometryLibrary.polygonsFromHierarchy(
|
||
|
|
polygonHierarchy,
|
||
|
|
tangentPlane.projectPointsOntoPlane.bind(tangentPlane),
|
||
|
|
!perPositionHeight,
|
||
|
|
ellipsoid
|
||
|
|
);
|
||
|
|
|
||
|
|
const hierarchy = results.hierarchy;
|
||
|
|
const polygons = results.polygons;
|
||
|
|
|
||
|
|
if (hierarchy.length === 0) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
outerPositions = hierarchy[0].outerRing;
|
||
|
|
const boundingRectangle = PolygonGeometryLibrary.PolygonGeometryLibrary.computeBoundingRectangle(
|
||
|
|
tangentPlane.plane.normal,
|
||
|
|
tangentPlane.projectPointOntoPlane.bind(tangentPlane),
|
||
|
|
outerPositions,
|
||
|
|
stRotation,
|
||
|
|
scratchBoundingRectangle
|
||
|
|
);
|
||
|
|
|
||
|
|
const geometries = [];
|
||
|
|
|
||
|
|
const height = polygonGeometry._height;
|
||
|
|
const extrudedHeight = polygonGeometry._extrudedHeight;
|
||
|
|
const extrude =
|
||
|
|
polygonGeometry._perPositionHeightExtrude ||
|
||
|
|
!ComponentDatatype.CesiumMath.equalsEpsilon(height, extrudedHeight, 0, ComponentDatatype.CesiumMath.EPSILON2);
|
||
|
|
|
||
|
|
const 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,
|
||
|
|
};
|
||
|
|
|
||
|
|
let 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++) {
|
||
|
|
const splitGeometry = createGeometryFromPositionsExtruded(
|
||
|
|
ellipsoid,
|
||
|
|
polygons[i],
|
||
|
|
granularity,
|
||
|
|
hierarchy[i],
|
||
|
|
perPositionHeight,
|
||
|
|
closeTop,
|
||
|
|
closeBottom,
|
||
|
|
vertexFormat,
|
||
|
|
arcType
|
||
|
|
);
|
||
|
|
|
||
|
|
let 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);
|
||
|
|
}
|
||
|
|
|
||
|
|
const walls = splitGeometry.walls;
|
||
|
|
options.wall = true;
|
||
|
|
for (let k = 0; k < walls.length; k++) {
|
||
|
|
const 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++) {
|
||
|
|
const 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)) {
|
||
|
|
const length =
|
||
|
|
geometryInstance.geometry.attributes.position.values.length;
|
||
|
|
const applyOffset = new Uint8Array(length / 3);
|
||
|
|
const 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);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
const 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
|
||
|
|
);
|
||
|
|
|
||
|
|
const attributes = geometry.attributes;
|
||
|
|
const 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
|
||
|
|
) {
|
||
|
|
const granularity = polygonGeometry._granularity;
|
||
|
|
const ellipsoid = polygonGeometry._ellipsoid;
|
||
|
|
|
||
|
|
const minHeight = minHeightFunc(granularity, ellipsoid);
|
||
|
|
const 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) {
|
||
|
|
const stRotation = -polygonGeometry._stRotation;
|
||
|
|
if (stRotation === 0.0) {
|
||
|
|
return [0, 0, 0, 1, 1, 0];
|
||
|
|
}
|
||
|
|
const ellipsoid = polygonGeometry._ellipsoid;
|
||
|
|
const positions = polygonGeometry._polygonHierarchy.positions;
|
||
|
|
const boundingRectangle = polygonGeometry.rectangle;
|
||
|
|
return GeometryAttribute.Geometry._textureCoordinateRotationPoints(
|
||
|
|
positions,
|
||
|
|
stRotation,
|
||
|
|
ellipsoid,
|
||
|
|
boundingRectangle
|
||
|
|
);
|
||
|
|
}
|
||
|
|
|
||
|
|
Object.defineProperties(PolygonGeometry.prototype, {
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
rectangle: {
|
||
|
|
get: function () {
|
||
|
|
if (!when.defined(this._rectangle)) {
|
||
|
|
const 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 = Matrix2.Ellipsoid.clone(polygonGeometry._ellipsoid);
|
||
|
|
return PolygonGeometry.createGeometry(polygonGeometry);
|
||
|
|
}
|
||
|
|
|
||
|
|
return createPolygonGeometry;
|
||
|
|
|
||
|
|
}));
|
||
|
|
//# sourceMappingURL=createPolygonGeometry.js.map
|