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import Color from "../Core/Color.js";
import defined from "../Core/defined.js";
import Cesium3DTileFeature from "./Cesium3DTileFeature.js";
import createBillboardPointCallback from "./createBillboardPointCallback.js";
/**
* A point feature of a {@link Cesium3DTileset}.
* <p>
* Provides access to a feature's properties stored in the tile's batch table, as well
* as the ability to show/hide a feature and change its point properties
* </p>
* <p>
* Modifications to a <code>Cesium3DTilePointFeature</code> object have the lifetime of the tile's
* content. If the tile's content is unloaded, e.g., due to it going out of view and needing
* to free space in the cache for visible tiles, listen to the {@link Cesium3DTileset#tileUnload} event to save any
* modifications. Also listen to the {@link Cesium3DTileset#tileVisible} event to reapply any modifications.
* </p>
* <p>
* Do not construct this directly. Access it through {@link Cesium3DTileContent#getFeature}
* or picking using {@link Scene#pick} and {@link Scene#pickPosition}.
* </p>
*
* @alias Cesium3DTilePointFeature
* @constructor
*
* @experimental This feature is using part of the 3D Tiles spec that is not final and is subject to change without Cesium's standard deprecation policy.
*
* @example
* // On mouse over, display all the properties for a feature in the console log.
* handler.setInputAction(function(movement) {
* const feature = scene.pick(movement.endPosition);
* if (feature instanceof Cesium.Cesium3DTilePointFeature) {
* const propertyIds = feature.getPropertyIds();
* const length = propertyIds.length;
* for (let i = 0; i < length; ++i) {
* const propertyId = propertyIds[i];
* console.log(`{propertyId}: ${feature.getProperty(propertyId)}`);
* }
* }
* }, Cesium.ScreenSpaceEventType.MOUSE_MOVE);
*/
function Cesium3DTilePointFeature(
content,
batchId,
billboard,
label,
polyline,
) {
this._content = content;
this._billboard = billboard;
this._label = label;
this._polyline = polyline;
this._batchId = batchId;
this._billboardImage = undefined;
this._billboardColor = undefined;
this._billboardOutlineColor = undefined;
this._billboardOutlineWidth = undefined;
this._billboardSize = undefined;
this._pointSize = undefined;
this._color = undefined;
this._pointSize = undefined;
this._pointOutlineColor = undefined;
this._pointOutlineWidth = undefined;
this._heightOffset = undefined;
this._pickIds = new Array(3);
setBillboardImage(this);
}
const scratchCartographic = new Cartographic();
Object.defineProperties(Cesium3DTilePointFeature.prototype, {
/**
* Gets or sets if the feature will be shown. This is set for all features
* when a style's show is evaluated.
*
* @memberof Cesium3DTilePointFeature.prototype
*
* @type {boolean}
*
* @default true
*/
show: {
get: function () {
return this._label.show;
},
set: function (value) {
this._label.show = value;
this._billboard.show = value;
this._polyline.show = value;
},
},
/**
* Gets or sets the color of the point of this feature.
* <p>
* Only applied when <code>image</code> is <code>undefined</code>.
* </p>
*
* @memberof Cesium3DTilePointFeature.prototype
*
* @type {Color}
*/
color: {
get: function () {
return this._color;
},
set: function (value) {
this._color = Color.clone(value, this._color);
setBillboardImage(this);
},
},
/**
* Gets or sets the point size of this feature.
* <p>
* Only applied when <code>image</code> is <code>undefined</code>.
* </p>
*
* @memberof Cesium3DTilePointFeature.prototype
*
* @type {number}
*/
pointSize: {
get: function () {
return this._pointSize;
},
set: function (value) {
this._pointSize = value;
setBillboardImage(this);
},
},
/**
* Gets or sets the point outline color of this feature.
* <p>
* Only applied when <code>image</code> is <code>undefined</code>.
* </p>
*
* @memberof Cesium3DTilePointFeature.prototype
*
* @type {Color}
*/
pointOutlineColor: {
get: function () {
return this._pointOutlineColor;
},
set: function (value) {
this._pointOutlineColor = Color.clone(value, this._pointOutlineColor);
setBillboardImage(this);
},
},
/**
* Gets or sets the point outline width in pixels of this feature.
* <p>
* Only applied when <code>image</code> is <code>undefined</code>.
* </p>
*
* @memberof Cesium3DTilePointFeature.prototype
*
* @type {number}
*/
pointOutlineWidth: {
get: function () {
return this._pointOutlineWidth;
},
set: function (value) {
this._pointOutlineWidth = value;
setBillboardImage(this);
},
},
/**
* Gets or sets the label color of this feature.
* <p>
* The color will be applied to the label if <code>labelText</code> is defined.
* </p>
*
* @memberof Cesium3DTilePointFeature.prototype
*
* @type {Color}
*/
labelColor: {
get: function () {
return this._label.fillColor;
},
set: function (value) {
this._label.fillColor = value;
this._polyline.show = this._label.show && value.alpha > 0.0;
},
},
/**
* Gets or sets the label outline color of this feature.
* <p>
* The outline color will be applied to the label if <code>labelText</code> is defined.
* </p>
*
* @memberof Cesium3DTilePointFeature.prototype
*
* @type {Color}
*/
labelOutlineColor: {
get: function () {
return this._label.outlineColor;
},
set: function (value) {
this._label.outlineColor = value;
},
},
/**
* Gets or sets the outline width in pixels of this feature.
* <p>
* The outline width will be applied to the point if <code>labelText</code> is defined.
* </p>
*
* @memberof Cesium3DTilePointFeature.prototype
*
* @type {number}
*/
labelOutlineWidth: {
get: function () {
return this._label.outlineWidth;
},
set: function (value) {
this._label.outlineWidth = value;
},
},
/**
* Gets or sets the font of this feature.
* <p>
* Only applied when the <code>labelText</code> is defined.
* </p>
*
* @memberof Cesium3DTilePointFeature.prototype
*
* @type {string}
*/
font: {
get: function () {
return this._label.font;
},
set: function (value) {
this._label.font = value;
},
},
/**
* Gets or sets the fill and outline style of this feature.
* <p>
* Only applied when <code>labelText</code> is defined.
* </p>
*
* @memberof Cesium3DTilePointFeature.prototype
*
* @type {LabelStyle}
*/
labelStyle: {
get: function () {
return this._label.style;
},
set: function (value) {
this._label.style = value;
},
},
/**
* Gets or sets the text for this feature.
*
* @memberof Cesium3DTilePointFeature.prototype
*
* @type {string}
*/
labelText: {
get: function () {
return this._label.text;
},
set: function (value) {
if (!defined(value)) {
value = "";
}
this._label.text = value;
},
},
/**
* Gets or sets the background color of the text for this feature.
* <p>
* Only applied when <code>labelText</code> is defined.
* </p>
*
* @memberof Cesium3DTilePointFeature.prototype
*
* @type {Color}
*/
backgroundColor: {
get: function () {
return this._label.backgroundColor;
},
set: function (value) {
this._label.backgroundColor = value;
},
},
/**
* Gets or sets the background padding of the text for this feature.
* <p>
* Only applied when <code>labelText</code> is defined.
* </p>
*
* @memberof Cesium3DTilePointFeature.prototype
*
* @type {Cartesian2}
*/
backgroundPadding: {
get: function () {
return this._label.backgroundPadding;
},
set: function (value) {
this._label.backgroundPadding = value;
},
},
/**
* Gets or sets whether to display the background of the text for this feature.
* <p>
* Only applied when <code>labelText</code> is defined.
* </p>
*
* @memberof Cesium3DTilePointFeature.prototype
*
* @type {boolean}
*/
backgroundEnabled: {
get: function () {
return this._label.showBackground;
},
set: function (value) {
this._label.showBackground = value;
},
},
/**
* Gets or sets the near and far scaling properties for this feature.
*
* @memberof Cesium3DTilePointFeature.prototype
*
* @type {NearFarScalar}
*/
scaleByDistance: {
get: function () {
return this._label.scaleByDistance;
},
set: function (value) {
this._label.scaleByDistance = value;
this._billboard.scaleByDistance = value;
},
},
/**
* Gets or sets the near and far translucency properties for this feature.
*
* @memberof Cesium3DTilePointFeature.prototype
*
* @type {NearFarScalar}
*/
translucencyByDistance: {
get: function () {
return this._label.translucencyByDistance;
},
set: function (value) {
this._label.translucencyByDistance = value;
this._billboard.translucencyByDistance = value;
},
},
/**
* Gets or sets the condition specifying at what distance from the camera that this feature will be displayed.
*
* @memberof Cesium3DTilePointFeature.prototype
*
* @type {DistanceDisplayCondition}
*/
distanceDisplayCondition: {
get: function () {
return this._label.distanceDisplayCondition;
},
set: function (value) {
this._label.distanceDisplayCondition = value;
this._polyline.distanceDisplayCondition = value;
this._billboard.distanceDisplayCondition = value;
},
},
/**
* Gets or sets the height offset in meters of this feature.
*
* @memberof Cesium3DTilePointFeature.prototype
*
* @type {number}
*/
heightOffset: {
get: function () {
return this._heightOffset;
},
set: function (value) {
const offset = this._heightOffset ?? 0.0;
const ellipsoid = this._content.tileset.ellipsoid;
const cart = ellipsoid.cartesianToCartographic(
this._billboard.position,
scratchCartographic,
);
cart.height = cart.height - offset + value;
const newPosition = ellipsoid.cartographicToCartesian(cart);
this._billboard.position = newPosition;
this._label.position = this._billboard.position;
this._polyline.positions = [this._polyline.positions[0], newPosition];
this._heightOffset = value;
},
},
/**
* Gets or sets whether the anchor line is displayed.
* <p>
* Only applied when <code>heightOffset</code> is defined.
* </p>
*
* @memberof Cesium3DTilePointFeature.prototype
*
* @type {boolean}
*/
anchorLineEnabled: {
get: function () {
return this._polyline.show;
},
set: function (value) {
this._polyline.show = value;
},
},
/**
* Gets or sets the color for the anchor line.
* <p>
* Only applied when <code>heightOffset</code> is defined.
* </p>
*
* @memberof Cesium3DTilePointFeature.prototype
*
* @type {Color}
*/
anchorLineColor: {
get: function () {
return this._polyline.material.uniforms.color;
},
set: function (value) {
this._polyline.material.uniforms.color = Color.clone(
value,
this._polyline.material.uniforms.color,
);
},
},
/**
* Gets or sets the image of this feature.
*
* @memberof Cesium3DTilePointFeature.prototype
*
* @type {string}
*/
image: {
get: function () {
return this._billboardImage;
},
set: function (value) {
const imageChanged = this._billboardImage !== value;
this._billboardImage = value;
if (imageChanged) {
setBillboardImage(this);
}
},
},
/**
* Gets or sets the distance where depth testing will be disabled.
*
* @memberof Cesium3DTilePointFeature.prototype
*
* @type {number}
*/
disableDepthTestDistance: {
get: function () {
return this._label.disableDepthTestDistance;
},
set: function (value) {
this._label.disableDepthTestDistance = value;
this._billboard.disableDepthTestDistance = value;
},
},
/**
* Gets or sets the horizontal origin of this point, which determines if the point is
* to the left, center, or right of its anchor position.
*
* @memberof Cesium3DTilePointFeature.prototype
*
* @type {HorizontalOrigin}
*/
horizontalOrigin: {
get: function () {
return this._billboard.horizontalOrigin;
},
set: function (value) {
this._billboard.horizontalOrigin = value;
},
},
/**
* Gets or sets the vertical origin of this point, which determines if the point is
* to the bottom, center, or top of its anchor position.
*
* @memberof Cesium3DTilePointFeature.prototype
*
* @type {VerticalOrigin}
*/
verticalOrigin: {
get: function () {
return this._billboard.verticalOrigin;
},
set: function (value) {
this._billboard.verticalOrigin = value;
},
},
/**
* Gets or sets the horizontal origin of this point's text, which determines if the point's text is
* to the left, center, or right of its anchor position.
*
* @memberof Cesium3DTilePointFeature.prototype
*
* @type {HorizontalOrigin}
*/
labelHorizontalOrigin: {
get: function () {
return this._label.horizontalOrigin;
},
set: function (value) {
this._label.horizontalOrigin = value;
},
},
/**
* Get or sets the vertical origin of this point's text, which determines if the point's text is
* to the bottom, center, top, or baseline of it's anchor point.
*
* @memberof Cesium3DTilePointFeature.prototype
*
* @type {VerticalOrigin}
*/
labelVerticalOrigin: {
get: function () {
return this._label.verticalOrigin;
},
set: function (value) {
this._label.verticalOrigin = value;
},
},
/**
* Gets the content of the tile containing the feature.
*
* @memberof Cesium3DTilePointFeature.prototype
*
* @type {Cesium3DTileContent}
*
* @readonly
* @private
*/
content: {
get: function () {
return this._content;
},
},
/**
* Gets the tileset containing the feature.
*
* @memberof Cesium3DTilePointFeature.prototype
*
* @type {Cesium3DTileset}
*
* @readonly
*/
tileset: {
get: function () {
return this._content.tileset;
},
},
/**
* All objects returned by {@link Scene#pick} have a <code>primitive</code> property. This returns
* the tileset containing the feature.
*
* @memberof Cesium3DTilePointFeature.prototype
*
* @type {Cesium3DTileset}
*
* @readonly
*/
primitive: {
get: function () {
return this._content.tileset;
},
},
/**
* @private
*/
pickIds: {
get: function () {
const ids = this._pickIds;
ids[0] = this._billboard.pickId;
ids[1] = this._label.pickId;
ids[2] = this._polyline.pickId;
return ids;
},
},
});
Cesium3DTilePointFeature.defaultColor = Color.WHITE;
Cesium3DTilePointFeature.defaultPointOutlineColor = Color.BLACK;
Cesium3DTilePointFeature.defaultPointOutlineWidth = 0.0;
Cesium3DTilePointFeature.defaultPointSize = 8.0;
function setBillboardImage(feature) {
const b = feature._billboard;
if (defined(feature._billboardImage) && feature._billboardImage !== b.image) {
b.image = feature._billboardImage;
return;
}
Iif (defined(feature._billboardImage)) {
return;
}
const newColor = feature._color ?? Cesium3DTilePointFeature.defaultColor;
const newOutlineColor =
feature._pointOutlineColor ??
Cesium3DTilePointFeature.defaultPointOutlineColor;
const newOutlineWidth =
feature._pointOutlineWidth ??
Cesium3DTilePointFeature.defaultPointOutlineWidth;
const newPointSize =
feature._pointSize ?? Cesium3DTilePointFeature.defaultPointSize;
const currentColor = feature._billboardColor;
const currentOutlineColor = feature._billboardOutlineColor;
const currentOutlineWidth = feature._billboardOutlineWidth;
const currentPointSize = feature._billboardSize;
if (
Color.equals(newColor, currentColor) &&
Color.equals(newOutlineColor, currentOutlineColor) &&
newOutlineWidth === currentOutlineWidth &&
newPointSize === currentPointSize
) {
return;
}
feature._billboardColor = Color.clone(newColor, feature._billboardColor);
feature._billboardOutlineColor = Color.clone(
newOutlineColor,
feature._billboardOutlineColor,
);
feature._billboardOutlineWidth = newOutlineWidth;
feature._billboardSize = newPointSize;
const centerAlpha = newColor.alpha;
const cssColor = newColor.toCssColorString();
const cssOutlineColor = newOutlineColor.toCssColorString();
const textureId = JSON.stringify([
cssColor,
newPointSize,
cssOutlineColor,
newOutlineWidth,
]);
b.setImage(
textureId,
createBillboardPointCallback(
centerAlpha,
cssColor,
cssOutlineColor,
newOutlineWidth,
newPointSize,
),
);
}
/**
* Returns whether the feature contains this property. This includes properties from this feature's
* class and inherited classes when using a batch table hierarchy.
*
* @see {@link https://github.com/CesiumGS/3d-tiles/tree/main/extensions/3DTILES_batch_table_hierarchy}
*
* @param {string} name The case-sensitive name of the property.
* @returns {boolean} Whether the feature contains this property.
*/
Cesium3DTilePointFeature.prototype.hasProperty = function (name) {
return this._content.batchTable.hasProperty(this._batchId, name);
};
/**
* Returns an array of property IDs for the feature. This includes properties from this feature's
* class and inherited classes when using a batch table hierarchy.
*
* @see {@link https://github.com/CesiumGS/3d-tiles/tree/main/extensions/3DTILES_batch_table_hierarchy}
*
* @param {string[]} [results] An array into which to store the results.
* @returns {string[]} The IDs of the feature's properties.
*/
Cesium3DTilePointFeature.prototype.getPropertyIds = function (results) {
return this._content.batchTable.getPropertyIds(this._batchId, results);
};
/**
* Returns a copy of the value of the feature's property with the given name. This includes properties from this feature's
* class and inherited classes when using a batch table hierarchy.
*
* @see {@link https://github.com/CesiumGS/3d-tiles/tree/main/extensions/3DTILES_batch_table_hierarchy}
*
* @param {string} name The case-sensitive name of the property.
* @returns {*} The value of the property or <code>undefined</code> if the feature does not have this property.
*
* @example
* // Display all the properties for a feature in the console log.
* const propertyIds = feature.getPropertyIds();
* const length = propertyIds.length;
* for (let i = 0; i < length; ++i) {
* const propertyId = propertyIds[i];
* console.log(`{propertyId} : ${feature.getProperty(propertyId)}`);
* }
*/
Cesium3DTilePointFeature.prototype.getProperty = function (name) {
return this._content.batchTable.getProperty(this._batchId, name);
};
/**
* Returns a copy of the value of the feature's property with the given name.
* If the feature is contained within a tileset that has metadata (3D Tiles 1.1)
* or uses the <code>3DTILES_metadata</code> extension, tileset, group and tile metadata is
* inherited.
* <p>
* To resolve name conflicts, this method resolves names from most specific to
* least specific by metadata granularity in the order: feature, tile, group,
* tileset. Within each granularity, semantics are resolved first, then other
* properties.
* </p>
* @param {string} name The case-sensitive name of the property.
* @returns {*} The value of the property or <code>undefined</code> if the feature does not have this property.
* @private
* @experimental This feature is using part of the 3D Tiles spec that is not final and is subject to change without Cesium's standard deprecation policy.
*/
Cesium3DTilePointFeature.prototype.getPropertyInherited = function (name) {
return Cesium3DTileFeature.getPropertyInherited(
this._content,
this._batchId,
name,
);
};
/**
* Sets the value of the feature's property with the given name.
* <p>
* If a property with the given name doesn't exist, it is created.
* </p>
*
* @param {string} name The case-sensitive name of the property.
* @param {*} value The value of the property that will be copied.
*
* @exception {DeveloperError} Inherited batch table hierarchy property is read only.
*
* @example
* const height = feature.getProperty('Height'); // e.g., the height of a building
*
* @example
* const name = 'clicked';
* if (feature.getProperty(name)) {
* console.log('already clicked');
* } else {
* feature.setProperty(name, true);
* console.log('first click');
* }
*/
Cesium3DTilePointFeature.prototype.setProperty = function (name, value) {
this._content.batchTable.setProperty(this._batchId, name, value);
// PERFORMANCE_IDEA: Probably overkill, but maybe only mark the tile dirty if the
// property is in one of the style's expressions or - if it can be done quickly -
// if the new property value changed the result of an expression.
this._content.featurePropertiesDirty = true;
};
/**
* Returns whether the feature's class name equals <code>className</code>. Unlike {@link Cesium3DTilePointFeature#isClass}
* this function only checks the feature's exact class and not inherited classes.
* <p>
* This function returns <code>false</code> if no batch table hierarchy is present.
* </p>
*
* @param {string} className The name to check against.
* @returns {boolean} Whether the feature's class name equals <code>className</code>
*
* @private
*/
Cesium3DTilePointFeature.prototype.isExactClass = function (className) {
return this._content.batchTable.isExactClass(this._batchId, className);
};
/**
* Returns whether the feature's class or any inherited classes are named <code>className</code>.
* <p>
* This function returns <code>false</code> if no batch table hierarchy is present.
* </p>
*
* @param {string} className The name to check against.
* @returns {boolean} Whether the feature's class or inherited classes are named <code>className</code>
*
* @private
*/
Cesium3DTilePointFeature.prototype.isClass = function (className) {
return this._content.batchTable.isClass(this._batchId, className);
};
/**
* Returns the feature's class name.
* <p>
* This function returns <code>undefined</code> if no batch table hierarchy is present.
* </p>
*
* @returns {string} The feature's class name.
*
* @private
*/
Cesium3DTilePointFeature.prototype.getExactClassName = function () {
return this._content.batchTable.getExactClassName(this._batchId);
};
export default Cesium3DTilePointFeature;
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