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/* This file is automatically rebuilt by the Cesium build process. */
define(['exports', './GeometryOffsetAttribute-a43cd3fe', './Transforms-0a60c469', './Cartesian2-ea36f114', './ComponentDatatype-ec57da04', './when-9f8cafad', './Check-c23b5bd5', './EllipseGeometryLibrary-426a25d8', './GeometryAttribute-abbafb10', './GeometryAttributes-fcb70320', './IndexDatatype-d65a2d74', './Math-cf2f57e0'], function (exports, GeometryOffsetAttribute, Transforms, Cartesian2, ComponentDatatype, when, Check, EllipseGeometryLibrary, GeometryAttribute, GeometryAttributes, IndexDatatype, _Math) { 'use strict';
var scratchCartesian1 = new Cartesian2.Cartesian3();
var boundingSphereCenter = new Cartesian2.Cartesian3();
function computeEllipse(options) {
var center = options.center;
boundingSphereCenter = Cartesian2.Cartesian3.multiplyByScalar(
options.ellipsoid.geodeticSurfaceNormal(center, boundingSphereCenter),
options.height,
boundingSphereCenter
);
boundingSphereCenter = Cartesian2.Cartesian3.add(
center,
boundingSphereCenter,
boundingSphereCenter
);
var boundingSphere = new Transforms.BoundingSphere(
boundingSphereCenter,
options.semiMajorAxis
);
var positions = EllipseGeometryLibrary.EllipseGeometryLibrary.computeEllipsePositions(
options,
false,
true
).outerPositions;
var attributes = new GeometryAttributes.GeometryAttributes({
position: new GeometryAttribute.GeometryAttribute({
componentDatatype: ComponentDatatype.ComponentDatatype.DOUBLE,
componentsPerAttribute: 3,
values: EllipseGeometryLibrary.EllipseGeometryLibrary.raisePositionsToHeight(
positions,
options,
false
),
}),
});
var length = positions.length / 3;
var indices = IndexDatatype.IndexDatatype.createTypedArray(length, length * 2);
var index = 0;
for (var i = 0; i < length; ++i) {
indices[index++] = i;
indices[index++] = (i + 1) % length;
}
return {
boundingSphere: boundingSphere,
attributes: attributes,
indices: indices,
};
}
var topBoundingSphere = new Transforms.BoundingSphere();
var bottomBoundingSphere = new Transforms.BoundingSphere();
function computeExtrudedEllipse(options) {
var center = options.center;
var ellipsoid = options.ellipsoid;
var semiMajorAxis = options.semiMajorAxis;
var scaledNormal = Cartesian2.Cartesian3.multiplyByScalar(
ellipsoid.geodeticSurfaceNormal(center, scratchCartesian1),
options.height,
scratchCartesian1
);
topBoundingSphere.center = Cartesian2.Cartesian3.add(
center,
scaledNormal,
topBoundingSphere.center
);
topBoundingSphere.radius = semiMajorAxis;
scaledNormal = Cartesian2.Cartesian3.multiplyByScalar(
ellipsoid.geodeticSurfaceNormal(center, scaledNormal),
options.extrudedHeight,
scaledNormal
);
bottomBoundingSphere.center = Cartesian2.Cartesian3.add(
center,
scaledNormal,
bottomBoundingSphere.center
);
bottomBoundingSphere.radius = semiMajorAxis;
var positions = EllipseGeometryLibrary.EllipseGeometryLibrary.computeEllipsePositions(
options,
false,
true
).outerPositions;
var attributes = new GeometryAttributes.GeometryAttributes({
position: new GeometryAttribute.GeometryAttribute({
componentDatatype: ComponentDatatype.ComponentDatatype.DOUBLE,
componentsPerAttribute: 3,
values: EllipseGeometryLibrary.EllipseGeometryLibrary.raisePositionsToHeight(
positions,
options,
true
),
}),
});
positions = attributes.position.values;
var boundingSphere = Transforms.BoundingSphere.union(
topBoundingSphere,
bottomBoundingSphere
);
var length = positions.length / 3;
if (when.defined(options.offsetAttribute)) {
var applyOffset = new Uint8Array(length);
if (options.offsetAttribute === GeometryOffsetAttribute.GeometryOffsetAttribute.TOP) {
applyOffset = GeometryOffsetAttribute.arrayFill(applyOffset, 1, 0, length / 2);
} else {
var offsetValue =
options.offsetAttribute === GeometryOffsetAttribute.GeometryOffsetAttribute.NONE ? 0 : 1;
applyOffset = GeometryOffsetAttribute.arrayFill(applyOffset, offsetValue);
}
attributes.applyOffset = new GeometryAttribute.GeometryAttribute({
componentDatatype: ComponentDatatype.ComponentDatatype.UNSIGNED_BYTE,
componentsPerAttribute: 1,
values: applyOffset,
});
}
var numberOfVerticalLines = when.defaultValue(options.numberOfVerticalLines, 16);
numberOfVerticalLines = _Math.CesiumMath.clamp(
numberOfVerticalLines,
0,
length / 2
);
var indices = IndexDatatype.IndexDatatype.createTypedArray(
length,
length * 2 + numberOfVerticalLines * 2
);
length /= 2;
var index = 0;
var i;
for (i = 0; i < length; ++i) {
indices[index++] = i;
indices[index++] = (i + 1) % length;
indices[index++] = i + length;
indices[index++] = ((i + 1) % length) + length;
}
var numSide;
if (numberOfVerticalLines > 0) {
var numSideLines = Math.min(numberOfVerticalLines, length);
numSide = Math.round(length / numSideLines);
var maxI = Math.min(numSide * numberOfVerticalLines, length);
for (i = 0; i < maxI; i += numSide) {
indices[index++] = i;
indices[index++] = i + length;
}
}
return {
boundingSphere: boundingSphere,
attributes: attributes,
indices: indices,
};
}
/**
* A description of the outline of an ellipse on an ellipsoid.
*
* @alias EllipseOutlineGeometry
* @constructor
*
* @param {Object} options Object with the following properties:
* @param {Cartesian3} options.center The ellipse's center point in the fixed frame.
* @param {Number} options.semiMajorAxis The length of the ellipse's semi-major axis in meters.
* @param {Number} options.semiMinorAxis The length of the ellipse's semi-minor axis in meters.
* @param {Ellipsoid} [options.ellipsoid=Ellipsoid.WGS84] The ellipsoid the ellipse will be on.
* @param {Number} [options.height=0.0] The distance in meters between the ellipse and the ellipsoid surface.
* @param {Number} [options.extrudedHeight] The distance in meters between the ellipse's extruded face and the ellipsoid surface.
* @param {Number} [options.rotation=0.0] The angle from north (counter-clockwise) in radians.
* @param {Number} [options.granularity=0.02] The angular distance between points on the ellipse in radians.
* @param {Number} [options.numberOfVerticalLines=16] Number of lines to draw between the top and bottom surface of an extruded ellipse.
*
* @exception {DeveloperError} semiMajorAxis and semiMinorAxis must be greater than zero.
* @exception {DeveloperError} semiMajorAxis must be greater than or equal to the semiMinorAxis.
* @exception {DeveloperError} granularity must be greater than zero.
*
* @see EllipseOutlineGeometry.createGeometry
*
* @example
* var ellipse = new Cesium.EllipseOutlineGeometry({
* center : Cesium.Cartesian3.fromDegrees(-75.59777, 40.03883),
* semiMajorAxis : 500000.0,
* semiMinorAxis : 300000.0,
* rotation : Cesium.Math.toRadians(60.0)
* });
* var geometry = Cesium.EllipseOutlineGeometry.createGeometry(ellipse);
*/
function EllipseOutlineGeometry(options) {
options = when.defaultValue(options, when.defaultValue.EMPTY_OBJECT);
var center = options.center;
var ellipsoid = when.defaultValue(options.ellipsoid, Cartesian2.Ellipsoid.WGS84);
var semiMajorAxis = options.semiMajorAxis;
var semiMinorAxis = options.semiMinorAxis;
var granularity = when.defaultValue(
options.granularity,
_Math.CesiumMath.RADIANS_PER_DEGREE
);
//>>includeStart('debug', pragmas.debug);
if (!when.defined(center)) {
throw new Check.DeveloperError("center is required.");
}
if (!when.defined(semiMajorAxis)) {
throw new Check.DeveloperError("semiMajorAxis is required.");
}
if (!when.defined(semiMinorAxis)) {
throw new Check.DeveloperError("semiMinorAxis is required.");
}
if (semiMajorAxis < semiMinorAxis) {
throw new Check.DeveloperError(
"semiMajorAxis must be greater than or equal to the semiMinorAxis."
);
}
if (granularity <= 0.0) {
throw new Check.DeveloperError("granularity must be greater than zero.");
}
//>>includeEnd('debug');
var height = when.defaultValue(options.height, 0.0);
var extrudedHeight = when.defaultValue(options.extrudedHeight, height);
this._center = Cartesian2.Cartesian3.clone(center);
this._semiMajorAxis = semiMajorAxis;
this._semiMinorAxis = semiMinorAxis;
this._ellipsoid = Cartesian2.Ellipsoid.clone(ellipsoid);
this._rotation = when.defaultValue(options.rotation, 0.0);
this._height = Math.max(extrudedHeight, height);
this._granularity = granularity;
this._extrudedHeight = Math.min(extrudedHeight, height);
this._numberOfVerticalLines = Math.max(
when.defaultValue(options.numberOfVerticalLines, 16),
0
);
this._offsetAttribute = options.offsetAttribute;
this._workerName = "createEllipseOutlineGeometry";
}
/**
* The number of elements used to pack the object into an array.
* @type {Number}
*/
EllipseOutlineGeometry.packedLength =
Cartesian2.Cartesian3.packedLength + Cartesian2.Ellipsoid.packedLength + 8;
/**
* Stores the provided instance into the provided array.
*
* @param {EllipseOutlineGeometry} 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
*/
EllipseOutlineGeometry.pack = function (value, array, startingIndex) {
//>>includeStart('debug', pragmas.debug);
if (!when.defined(value)) {
throw new Check.DeveloperError("value is required");
}
if (!when.defined(array)) {
throw new Check.DeveloperError("array is required");
}
//>>includeEnd('debug');
startingIndex = when.defaultValue(startingIndex, 0);
Cartesian2.Cartesian3.pack(value._center, array, startingIndex);
startingIndex += Cartesian2.Cartesian3.packedLength;
Cartesian2.Ellipsoid.pack(value._ellipsoid, array, startingIndex);
startingIndex += Cartesian2.Ellipsoid.packedLength;
array[startingIndex++] = value._semiMajorAxis;
array[startingIndex++] = value._semiMinorAxis;
array[startingIndex++] = value._rotation;
array[startingIndex++] = value._height;
array[startingIndex++] = value._granularity;
array[startingIndex++] = value._extrudedHeight;
array[startingIndex++] = value._numberOfVerticalLines;
array[startingIndex] = when.defaultValue(value._offsetAttribute, -1);
return array;
};
var scratchCenter = new Cartesian2.Cartesian3();
var scratchEllipsoid = new Cartesian2.Ellipsoid();
var scratchOptions = {
center: scratchCenter,
ellipsoid: scratchEllipsoid,
semiMajorAxis: undefined,
semiMinorAxis: undefined,
rotation: undefined,
height: undefined,
granularity: undefined,
extrudedHeight: undefined,
numberOfVerticalLines: undefined,
offsetAttribute: 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 {EllipseOutlineGeometry} [result] The object into which to store the result.
* @returns {EllipseOutlineGeometry} The modified result parameter or a new EllipseOutlineGeometry instance if one was not provided.
*/
EllipseOutlineGeometry.unpack = function (array, startingIndex, result) {
//>>includeStart('debug', pragmas.debug);
if (!when.defined(array)) {
throw new Check.DeveloperError("array is required");
}
//>>includeEnd('debug');
startingIndex = when.defaultValue(startingIndex, 0);
var center = Cartesian2.Cartesian3.unpack(array, startingIndex, scratchCenter);
startingIndex += Cartesian2.Cartesian3.packedLength;
var ellipsoid = Cartesian2.Ellipsoid.unpack(array, startingIndex, scratchEllipsoid);
startingIndex += Cartesian2.Ellipsoid.packedLength;
var semiMajorAxis = array[startingIndex++];
var semiMinorAxis = array[startingIndex++];
var rotation = array[startingIndex++];
var height = array[startingIndex++];
var granularity = array[startingIndex++];
var extrudedHeight = array[startingIndex++];
var numberOfVerticalLines = array[startingIndex++];
var offsetAttribute = array[startingIndex];
if (!when.defined(result)) {
scratchOptions.height = height;
scratchOptions.extrudedHeight = extrudedHeight;
scratchOptions.granularity = granularity;
scratchOptions.rotation = rotation;
scratchOptions.semiMajorAxis = semiMajorAxis;
scratchOptions.semiMinorAxis = semiMinorAxis;
scratchOptions.numberOfVerticalLines = numberOfVerticalLines;
scratchOptions.offsetAttribute =
offsetAttribute === -1 ? undefined : offsetAttribute;
return new EllipseOutlineGeometry(scratchOptions);
}
result._center = Cartesian2.Cartesian3.clone(center, result._center);
result._ellipsoid = Cartesian2.Ellipsoid.clone(ellipsoid, result._ellipsoid);
result._semiMajorAxis = semiMajorAxis;
result._semiMinorAxis = semiMinorAxis;
result._rotation = rotation;
result._height = height;
result._granularity = granularity;
result._extrudedHeight = extrudedHeight;
result._numberOfVerticalLines = numberOfVerticalLines;
result._offsetAttribute =
offsetAttribute === -1 ? undefined : offsetAttribute;
return result;
};
/**
* Computes the geometric representation of an outline of an ellipse on an ellipsoid, including its vertices, indices, and a bounding sphere.
*
* @param {EllipseOutlineGeometry} ellipseGeometry A description of the ellipse.
* @returns {Geometry|undefined} The computed vertices and indices.
*/
EllipseOutlineGeometry.createGeometry = function (ellipseGeometry) {
if (
ellipseGeometry._semiMajorAxis <= 0.0 ||
ellipseGeometry._semiMinorAxis <= 0.0
) {
return;
}
var height = ellipseGeometry._height;
var extrudedHeight = ellipseGeometry._extrudedHeight;
var extrude = !_Math.CesiumMath.equalsEpsilon(
height,
extrudedHeight,
0,
_Math.CesiumMath.EPSILON2
);
ellipseGeometry._center = ellipseGeometry._ellipsoid.scaleToGeodeticSurface(
ellipseGeometry._center,
ellipseGeometry._center
);
var options = {
center: ellipseGeometry._center,
semiMajorAxis: ellipseGeometry._semiMajorAxis,
semiMinorAxis: ellipseGeometry._semiMinorAxis,
ellipsoid: ellipseGeometry._ellipsoid,
rotation: ellipseGeometry._rotation,
height: height,
granularity: ellipseGeometry._granularity,
numberOfVerticalLines: ellipseGeometry._numberOfVerticalLines,
};
var geometry;
if (extrude) {
options.extrudedHeight = extrudedHeight;
options.offsetAttribute = ellipseGeometry._offsetAttribute;
geometry = computeExtrudedEllipse(options);
} else {
geometry = computeEllipse(options);
if (when.defined(ellipseGeometry._offsetAttribute)) {
var length = geometry.attributes.position.values.length;
var applyOffset = new Uint8Array(length / 3);
var offsetValue =
ellipseGeometry._offsetAttribute === GeometryOffsetAttribute.GeometryOffsetAttribute.NONE
? 0
: 1;
GeometryOffsetAttribute.arrayFill(applyOffset, offsetValue);
geometry.attributes.applyOffset = new GeometryAttribute.GeometryAttribute({
componentDatatype: ComponentDatatype.ComponentDatatype.UNSIGNED_BYTE,
componentsPerAttribute: 1,
values: applyOffset,
});
}
}
return new GeometryAttribute.Geometry({
attributes: geometry.attributes,
indices: geometry.indices,
primitiveType: GeometryAttribute.PrimitiveType.LINES,
boundingSphere: geometry.boundingSphere,
offsetAttribute: ellipseGeometry._offsetAttribute,
});
};
exports.EllipseOutlineGeometry = EllipseOutlineGeometry;
});