Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 | 7x 7x 7x 7x 7x 7x 7x 7x 7x 7x 7x 21x 21x 7x 7x 7x 7x 7x 21x 21x 7x 7x 7x 110x 110x 110x 440x 440x 7x 7x 25x 25x 25x 25x 1x 24x 1x 23x 23x 23x 23x 23x 23x 23x 23x 23x 1x 5x 1x 4x 1x 3x 3x 3x 3x 3x 9x 3x 3x 3x 3x 9x 3x 3x 3x 3x 3x 1x 1x 1x 4x 1x 3x 3x 3x 3x 9x 3x 3x 3x 9x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 1x 1x 9x 9x 9x 9x 9x 2x 7x 6x 7x 7x 7x | import arrayRemoveDuplicates from "./arrayRemoveDuplicates.js";
import BoundingRectangle from "./BoundingRectangle.js";
import BoundingSphere from "./BoundingSphere.js";
import Cartesian2 from "./Cartesian2.js";
import Cartesian3 from "./Cartesian3.js";
import ComponentDatatype from "./ComponentDatatype.js";
import CornerType from "./CornerType.js";
import Frozen from "./Frozen.js";
import defined from "./defined.js";
import DeveloperError from "./DeveloperError.js";
import Ellipsoid from "./Ellipsoid.js";
import Geometry from "./Geometry.js";
import GeometryAttribute from "./GeometryAttribute.js";
import GeometryAttributes from "./GeometryAttributes.js";
import IndexDatatype from "./IndexDatatype.js";
import CesiumMath from "./Math.js";
import PolygonPipeline from "./PolygonPipeline.js";
import PolylineVolumeGeometryLibrary from "./PolylineVolumeGeometryLibrary.js";
import PrimitiveType from "./PrimitiveType.js";
import WindingOrder from "./WindingOrder.js";
function computeAttributes(positions, shape) {
const attributes = new GeometryAttributes();
attributes.position = new GeometryAttribute({
componentDatatype: ComponentDatatype.DOUBLE,
componentsPerAttribute: 3,
values: positions,
});
const shapeLength = shape.length;
const vertexCount = attributes.position.values.length / 3;
const positionLength = positions.length / 3;
const shapeCount = positionLength / shapeLength;
const indices = IndexDatatype.createTypedArray(
vertexCount,
2 * shapeLength * (shapeCount + 1),
);
let i, j;
let index = 0;
i = 0;
let offset = i * shapeLength;
for (j = 0; j < shapeLength - 1; j++) {
indices[index++] = j + offset;
indices[index++] = j + offset + 1;
}
indices[index++] = shapeLength - 1 + offset;
indices[index++] = offset;
i = shapeCount - 1;
offset = i * shapeLength;
for (j = 0; j < shapeLength - 1; j++) {
indices[index++] = j + offset;
indices[index++] = j + offset + 1;
}
indices[index++] = shapeLength - 1 + offset;
indices[index++] = offset;
for (i = 0; i < shapeCount - 1; i++) {
const firstOffset = shapeLength * i;
const secondOffset = firstOffset + shapeLength;
for (j = 0; j < shapeLength; j++) {
indices[index++] = j + firstOffset;
indices[index++] = j + secondOffset;
}
}
const geometry = new Geometry({
attributes: attributes,
indices: IndexDatatype.createTypedArray(vertexCount, indices),
boundingSphere: BoundingSphere.fromVertices(positions),
primitiveType: PrimitiveType.LINES,
});
return geometry;
}
/**
* A description of a polyline with a volume (a 2D shape extruded along a polyline).
*
* @alias PolylineVolumeOutlineGeometry
* @constructor
*
* @param {object} options Object with the following properties:
* @param {Cartesian3[]} options.polylinePositions An array of positions that define the center of the polyline volume.
* @param {Cartesian2[]} options.shapePositions An array of positions that define the shape to be extruded along the polyline
* @param {Ellipsoid} [options.ellipsoid=Ellipsoid.default] The ellipsoid to be used as a reference.
* @param {number} [options.granularity=CesiumMath.RADIANS_PER_DEGREE] The distance, in radians, between each latitude and longitude. Determines the number of positions in the buffer.
* @param {CornerType} [options.cornerType=CornerType.ROUNDED] Determines the style of the corners.
*
* @see PolylineVolumeOutlineGeometry#createGeometry
*
* @example
* function computeCircle(radius) {
* const positions = [];
* for (let i = 0; i < 360; i++) {
* const radians = Cesium.Math.toRadians(i);
* positions.push(new Cesium.Cartesian2(radius * Math.cos(radians), radius * Math.sin(radians)));
* }
* return positions;
* }
*
* const volumeOutline = new Cesium.PolylineVolumeOutlineGeometry({
* polylinePositions : Cesium.Cartesian3.fromDegreesArray([
* -72.0, 40.0,
* -70.0, 35.0
* ]),
* shapePositions : computeCircle(100000.0)
* });
*/
function PolylineVolumeOutlineGeometry(options) {
options = options ?? Frozen.EMPTY_OBJECT;
const positions = options.polylinePositions;
const shape = options.shapePositions;
//>>includeStart('debug', pragmas.debug);
if (!defined(positions)) {
throw new DeveloperError("options.polylinePositions is required.");
}
if (!defined(shape)) {
throw new DeveloperError("options.shapePositions is required.");
}
//>>includeEnd('debug');
this._positions = positions;
this._shape = shape;
this._ellipsoid = Ellipsoid.clone(options.ellipsoid ?? Ellipsoid.default);
this._cornerType = options.cornerType ?? CornerType.ROUNDED;
this._granularity = options.granularity ?? CesiumMath.RADIANS_PER_DEGREE;
this._workerName = "createPolylineVolumeOutlineGeometry";
let numComponents = 1 + positions.length * Cartesian3.packedLength;
numComponents += 1 + shape.length * Cartesian2.packedLength;
/**
* The number of elements used to pack the object into an array.
* @type {number}
*/
this.packedLength = numComponents + Ellipsoid.packedLength + 2;
}
/**
* Stores the provided instance into the provided array.
*
* @param {PolylineVolumeOutlineGeometry} value The value to pack.
* @param {number[]} array The array to pack into.
* @param {number} [startingIndex=0] The index into the array at which to start packing the elements.
*
* @returns {number[]} The array that was packed into
*/
PolylineVolumeOutlineGeometry.pack = function (value, array, startingIndex) {
//>>includeStart('debug', pragmas.debug);
if (!defined(value)) {
throw new DeveloperError("value is required");
}
if (!defined(array)) {
throw new DeveloperError("array is required");
}
//>>includeEnd('debug');
startingIndex = startingIndex ?? 0;
let i;
const positions = value._positions;
let length = positions.length;
array[startingIndex++] = length;
for (i = 0; i < length; ++i, startingIndex += Cartesian3.packedLength) {
Cartesian3.pack(positions[i], array, startingIndex);
}
const shape = value._shape;
length = shape.length;
array[startingIndex++] = length;
for (i = 0; i < length; ++i, startingIndex += Cartesian2.packedLength) {
Cartesian2.pack(shape[i], array, startingIndex);
}
Ellipsoid.pack(value._ellipsoid, array, startingIndex);
startingIndex += Ellipsoid.packedLength;
array[startingIndex++] = value._cornerType;
array[startingIndex] = value._granularity;
return array;
};
const scratchEllipsoid = Ellipsoid.clone(Ellipsoid.UNIT_SPHERE);
const scratchOptions = {
polylinePositions: undefined,
shapePositions: undefined,
ellipsoid: scratchEllipsoid,
height: undefined,
cornerType: undefined,
granularity: undefined,
};
/**
* Retrieves an instance from a packed array.
*
* @param {number[]} array The packed array.
* @param {number} [startingIndex=0] The starting index of the element to be unpacked.
* @param {PolylineVolumeOutlineGeometry} [result] The object into which to store the result.
* @returns {PolylineVolumeOutlineGeometry} The modified result parameter or a new PolylineVolumeOutlineGeometry instance if one was not provided.
*/
PolylineVolumeOutlineGeometry.unpack = function (array, startingIndex, result) {
//>>includeStart('debug', pragmas.debug);
if (!defined(array)) {
throw new DeveloperError("array is required");
}
//>>includeEnd('debug');
startingIndex = startingIndex ?? 0;
let i;
let length = array[startingIndex++];
const positions = new Array(length);
for (i = 0; i < length; ++i, startingIndex += Cartesian3.packedLength) {
positions[i] = Cartesian3.unpack(array, startingIndex);
}
length = array[startingIndex++];
const shape = new Array(length);
for (i = 0; i < length; ++i, startingIndex += Cartesian2.packedLength) {
shape[i] = Cartesian2.unpack(array, startingIndex);
}
const ellipsoid = Ellipsoid.unpack(array, startingIndex, scratchEllipsoid);
startingIndex += Ellipsoid.packedLength;
const cornerType = array[startingIndex++];
const granularity = array[startingIndex];
Eif (!defined(result)) {
scratchOptions.polylinePositions = positions;
scratchOptions.shapePositions = shape;
scratchOptions.cornerType = cornerType;
scratchOptions.granularity = granularity;
return new PolylineVolumeOutlineGeometry(scratchOptions);
}
result._positions = positions;
result._shape = shape;
result._ellipsoid = Ellipsoid.clone(ellipsoid, result._ellipsoid);
result._cornerType = cornerType;
result._granularity = granularity;
return result;
};
const brScratch = new BoundingRectangle();
/**
* Computes the geometric representation of the outline of a polyline with a volume, including its vertices, indices, and a bounding sphere.
*
* @param {PolylineVolumeOutlineGeometry} polylineVolumeOutlineGeometry A description of the polyline volume outline.
* @returns {Geometry|undefined} The computed vertices and indices.
*/
PolylineVolumeOutlineGeometry.createGeometry = function (
polylineVolumeOutlineGeometry,
) {
const positions = polylineVolumeOutlineGeometry._positions;
const cleanPositions = arrayRemoveDuplicates(
positions,
Cartesian3.equalsEpsilon,
);
let shape2D = polylineVolumeOutlineGeometry._shape;
shape2D = PolylineVolumeGeometryLibrary.removeDuplicatesFromShape(shape2D);
if (cleanPositions.length < 2 || shape2D.length < 3) {
return undefined;
}
if (
PolygonPipeline.computeWindingOrder2D(shape2D) === WindingOrder.CLOCKWISE
) {
shape2D.reverse();
}
const boundingRectangle = BoundingRectangle.fromPoints(shape2D, brScratch);
const computedPositions = PolylineVolumeGeometryLibrary.computePositions(
cleanPositions,
shape2D,
boundingRectangle,
polylineVolumeOutlineGeometry,
false,
);
return computeAttributes(computedPositions, shape2D);
};
export default PolylineVolumeOutlineGeometry;
|