cesium
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CesiumJS is a JavaScript library for creating 3D globes and 2D maps in a web browser without a plugin.
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JavaScript
/**
* @license
* Cesium - https://github.com/CesiumGS/cesium
* Version 1.133.1
*
* Copyright 2011-2022 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.
*/
import {
BoundingRectangle_default
} from "./chunk-V65LOTF3.js";
import {
GeometryPipeline_default
} from "./chunk-PFUF2QIK.js";
import "./chunk-VQLQAENU.js";
import "./chunk-DJCPJJSP.js";
import {
CornerType_default,
PolylineVolumeGeometryLibrary_default,
oneTimeWarning_default
} from "./chunk-QWHUQ4B7.js";
import "./chunk-D4VFVSGU.js";
import "./chunk-LZZA3PAR.js";
import {
VertexFormat_default
} from "./chunk-HSVZWLJD.js";
import "./chunk-ZBLPNAYB.js";
import "./chunk-L7PWWHKM.js";
import {
PolygonPipeline_default,
WindingOrder_default
} from "./chunk-QFMJIXCL.js";
import {
arrayRemoveDuplicates_default
} from "./chunk-7MCEUVPM.js";
import "./chunk-OWV4L2GH.js";
import "./chunk-7P7R7ERW.js";
import "./chunk-ECGKCTPM.js";
import {
IndexDatatype_default
} from "./chunk-4MCKK5XE.js";
import {
GeometryAttributes_default
} from "./chunk-JIXKGUWR.js";
import {
GeometryAttribute_default,
Geometry_default,
PrimitiveType_default
} from "./chunk-JVNWWKXF.js";
import {
BoundingSphere_default
} from "./chunk-LYKXQPGW.js";
import "./chunk-UUXKGCBU.js";
import {
ComponentDatatype_default
} from "./chunk-YW2UXIBU.js";
import {
Cartesian2_default,
Cartesian3_default,
Ellipsoid_default,
Frozen_default
} from "./chunk-LSYTMSIQ.js";
import {
Math_default
} from "./chunk-E2533KCN.js";
import "./chunk-DNMSVJ4S.js";
import "./chunk-4Z7AGRTU.js";
import {
DeveloperError_default
} from "./chunk-7FEVXX5D.js";
import {
defined_default
} from "./chunk-UXIZVXIR.js";
// packages/engine/Source/Core/PolylineVolumeGeometry.js
function computeAttributes(combinedPositions, shape, boundingRectangle, vertexFormat) {
const attributes = new GeometryAttributes_default();
if (vertexFormat.position) {
attributes.position = new GeometryAttribute_default({
componentDatatype: ComponentDatatype_default.DOUBLE,
componentsPerAttribute: 3,
values: combinedPositions
});
}
const shapeLength = shape.length;
const vertexCount = combinedPositions.length / 3;
const length = (vertexCount - shapeLength * 2) / (shapeLength * 2);
const firstEndIndices = PolygonPipeline_default.triangulate(shape);
const indicesCount = (length - 1) * shapeLength * 6 + firstEndIndices.length * 2;
const indices = IndexDatatype_default.createTypedArray(vertexCount, indicesCount);
let i, j;
let ll, ul, ur, lr;
const offset = shapeLength * 2;
let index = 0;
for (i = 0; i < length - 1; i++) {
for (j = 0; j < shapeLength - 1; j++) {
ll = j * 2 + i * shapeLength * 2;
lr = ll + offset;
ul = ll + 1;
ur = ul + offset;
indices[index++] = ul;
indices[index++] = ll;
indices[index++] = ur;
indices[index++] = ur;
indices[index++] = ll;
indices[index++] = lr;
}
ll = shapeLength * 2 - 2 + i * shapeLength * 2;
ul = ll + 1;
ur = ul + offset;
lr = ll + offset;
indices[index++] = ul;
indices[index++] = ll;
indices[index++] = ur;
indices[index++] = ur;
indices[index++] = ll;
indices[index++] = lr;
}
if (vertexFormat.st || vertexFormat.tangent || vertexFormat.bitangent) {
const st = new Float32Array(vertexCount * 2);
const lengthSt = 1 / (length - 1);
const heightSt = 1 / boundingRectangle.height;
const heightOffset = boundingRectangle.height / 2;
let s, t;
let stindex = 0;
for (i = 0; i < length; i++) {
s = i * lengthSt;
t = heightSt * (shape[0].y + heightOffset);
st[stindex++] = s;
st[stindex++] = t;
for (j = 1; j < shapeLength; j++) {
t = heightSt * (shape[j].y + heightOffset);
st[stindex++] = s;
st[stindex++] = t;
st[stindex++] = s;
st[stindex++] = t;
}
t = heightSt * (shape[0].y + heightOffset);
st[stindex++] = s;
st[stindex++] = t;
}
for (j = 0; j < shapeLength; j++) {
s = 0;
t = heightSt * (shape[j].y + heightOffset);
st[stindex++] = s;
st[stindex++] = t;
}
for (j = 0; j < shapeLength; j++) {
s = (length - 1) * lengthSt;
t = heightSt * (shape[j].y + heightOffset);
st[stindex++] = s;
st[stindex++] = t;
}
attributes.st = new GeometryAttribute_default({
componentDatatype: ComponentDatatype_default.FLOAT,
componentsPerAttribute: 2,
values: new Float32Array(st)
});
}
const endOffset = vertexCount - shapeLength * 2;
for (i = 0; i < firstEndIndices.length; i += 3) {
const v0 = firstEndIndices[i] + endOffset;
const v1 = firstEndIndices[i + 1] + endOffset;
const v2 = firstEndIndices[i + 2] + endOffset;
indices[index++] = v0;
indices[index++] = v1;
indices[index++] = v2;
indices[index++] = v2 + shapeLength;
indices[index++] = v1 + shapeLength;
indices[index++] = v0 + shapeLength;
}
let geometry = new Geometry_default({
attributes,
indices,
boundingSphere: BoundingSphere_default.fromVertices(combinedPositions),
primitiveType: PrimitiveType_default.TRIANGLES
});
if (vertexFormat.normal) {
geometry = GeometryPipeline_default.computeNormal(geometry);
}
if (vertexFormat.tangent || vertexFormat.bitangent) {
try {
geometry = GeometryPipeline_default.computeTangentAndBitangent(geometry);
} catch (e) {
oneTimeWarning_default(
"polyline-volume-tangent-bitangent",
"Unable to compute tangents and bitangents for polyline volume geometry"
);
}
if (!vertexFormat.tangent) {
geometry.attributes.tangent = void 0;
}
if (!vertexFormat.bitangent) {
geometry.attributes.bitangent = void 0;
}
if (!vertexFormat.st) {
geometry.attributes.st = void 0;
}
}
return geometry;
}
function PolylineVolumeGeometry(options) {
options = options ?? Frozen_default.EMPTY_OBJECT;
const positions = options.polylinePositions;
const shape = options.shapePositions;
if (!defined_default(positions)) {
throw new DeveloperError_default("options.polylinePositions is required.");
}
if (!defined_default(shape)) {
throw new DeveloperError_default("options.shapePositions is required.");
}
this._positions = positions;
this._shape = shape;
this._ellipsoid = Ellipsoid_default.clone(options.ellipsoid ?? Ellipsoid_default.default);
this._cornerType = options.cornerType ?? CornerType_default.ROUNDED;
this._vertexFormat = VertexFormat_default.clone(
options.vertexFormat ?? VertexFormat_default.DEFAULT
);
this._granularity = options.granularity ?? Math_default.RADIANS_PER_DEGREE;
this._workerName = "createPolylineVolumeGeometry";
let numComponents = 1 + positions.length * Cartesian3_default.packedLength;
numComponents += 1 + shape.length * Cartesian2_default.packedLength;
this.packedLength = numComponents + Ellipsoid_default.packedLength + VertexFormat_default.packedLength + 2;
}
PolylineVolumeGeometry.pack = function(value, array, startingIndex) {
if (!defined_default(value)) {
throw new DeveloperError_default("value is required");
}
if (!defined_default(array)) {
throw new DeveloperError_default("array is required");
}
startingIndex = startingIndex ?? 0;
let i;
const positions = value._positions;
let length = positions.length;
array[startingIndex++] = length;
for (i = 0; i < length; ++i, startingIndex += Cartesian3_default.packedLength) {
Cartesian3_default.pack(positions[i], array, startingIndex);
}
const shape = value._shape;
length = shape.length;
array[startingIndex++] = length;
for (i = 0; i < length; ++i, startingIndex += Cartesian2_default.packedLength) {
Cartesian2_default.pack(shape[i], array, startingIndex);
}
Ellipsoid_default.pack(value._ellipsoid, array, startingIndex);
startingIndex += Ellipsoid_default.packedLength;
VertexFormat_default.pack(value._vertexFormat, array, startingIndex);
startingIndex += VertexFormat_default.packedLength;
array[startingIndex++] = value._cornerType;
array[startingIndex] = value._granularity;
return array;
};
var scratchEllipsoid = Ellipsoid_default.clone(Ellipsoid_default.UNIT_SPHERE);
var scratchVertexFormat = new VertexFormat_default();
var scratchOptions = {
polylinePositions: void 0,
shapePositions: void 0,
ellipsoid: scratchEllipsoid,
vertexFormat: scratchVertexFormat,
cornerType: void 0,
granularity: void 0
};
PolylineVolumeGeometry.unpack = function(array, startingIndex, result) {
if (!defined_default(array)) {
throw new DeveloperError_default("array is required");
}
startingIndex = startingIndex ?? 0;
let i;
let length = array[startingIndex++];
const positions = new Array(length);
for (i = 0; i < length; ++i, startingIndex += Cartesian3_default.packedLength) {
positions[i] = Cartesian3_default.unpack(array, startingIndex);
}
length = array[startingIndex++];
const shape = new Array(length);
for (i = 0; i < length; ++i, startingIndex += Cartesian2_default.packedLength) {
shape[i] = Cartesian2_default.unpack(array, startingIndex);
}
const ellipsoid = Ellipsoid_default.unpack(array, startingIndex, scratchEllipsoid);
startingIndex += Ellipsoid_default.packedLength;
const vertexFormat = VertexFormat_default.unpack(
array,
startingIndex,
scratchVertexFormat
);
startingIndex += VertexFormat_default.packedLength;
const cornerType = array[startingIndex++];
const granularity = array[startingIndex];
if (!defined_default(result)) {
scratchOptions.polylinePositions = positions;
scratchOptions.shapePositions = shape;
scratchOptions.cornerType = cornerType;
scratchOptions.granularity = granularity;
return new PolylineVolumeGeometry(scratchOptions);
}
result._positions = positions;
result._shape = shape;
result._ellipsoid = Ellipsoid_default.clone(ellipsoid, result._ellipsoid);
result._vertexFormat = VertexFormat_default.clone(vertexFormat, result._vertexFormat);
result._cornerType = cornerType;
result._granularity = granularity;
return result;
};
var brScratch = new BoundingRectangle_default();
PolylineVolumeGeometry.createGeometry = function(polylineVolumeGeometry) {
const positions = polylineVolumeGeometry._positions;
const cleanPositions = arrayRemoveDuplicates_default(
positions,
Cartesian3_default.equalsEpsilon
);
let shape2D = polylineVolumeGeometry._shape;
shape2D = PolylineVolumeGeometryLibrary_default.removeDuplicatesFromShape(shape2D);
if (cleanPositions.length < 2 || shape2D.length < 3) {
return void 0;
}
if (PolygonPipeline_default.computeWindingOrder2D(shape2D) === WindingOrder_default.CLOCKWISE) {
shape2D.reverse();
}
const boundingRectangle = BoundingRectangle_default.fromPoints(shape2D, brScratch);
const computedPositions = PolylineVolumeGeometryLibrary_default.computePositions(
cleanPositions,
shape2D,
boundingRectangle,
polylineVolumeGeometry,
true
);
return computeAttributes(
computedPositions,
shape2D,
boundingRectangle,
polylineVolumeGeometry._vertexFormat
);
};
var PolylineVolumeGeometry_default = PolylineVolumeGeometry;
// packages/engine/Source/Workers/createPolylineVolumeGeometry.js
function createPolylineVolumeGeometry(polylineVolumeGeometry, offset) {
if (defined_default(offset)) {
polylineVolumeGeometry = PolylineVolumeGeometry_default.unpack(
polylineVolumeGeometry,
offset
);
}
polylineVolumeGeometry._ellipsoid = Ellipsoid_default.clone(
polylineVolumeGeometry._ellipsoid
);
return PolylineVolumeGeometry_default.createGeometry(polylineVolumeGeometry);
}
var createPolylineVolumeGeometry_default = createPolylineVolumeGeometry;
export {
createPolylineVolumeGeometry_default as default
};