LabelGraphics

查阅Mars3D API

new Cesium.LabelGraphics(options)

engine/Source/DataSources/LabelGraphics.js 51

Describes a two dimensional label located at the position of the containing Entity.

Example labels

参数名称	类型	描述信息
options	LabelGraphics.ConstructorOptions	可选 Object describing initialization options

Demo:

• Cesium Sandcastle Labels Demo

成员(属性)

默认值: new Color(0.165, 0.165, 0.165, 0.8)

默认值: new Cartesian2(7, 5)

Gets or sets the Cartesian3 Property specifying the label's offset in eye coordinates. Eye coordinates is a left-handed coordinate system, where x points towards the viewer's right, y points up, and z points into the screen.

An eye offset is commonly used to arrange multiple labels or objects at the same position, e.g., to arrange a label above its corresponding 3D model.

Below, the label is positioned at the center of the Earth but an eye offset makes it always appear on top of the Earth regardless of the viewer's or Earth's orientation.

l.eyeOffset = new Cartesian3(0.0, 8000000.0, 0.0);

默认值: Cartesian3.ZERO

参考:

• CSS font on MDN

默认值: HeightReference.NONE

Gets or sets the Cartesian2 Property specifying the label's pixel offset in screen space from the origin of this label. This is commonly used to align multiple labels and labels at the same position, e.g., an image and text. The screen space origin is the top, left corner of the canvas; x increases from left to right, and y increases from top to bottom.

default

l.pixeloffset = new Cartesian2(25, 75);

The label's origin is indicated by the yellow point.

默认值: Cartesian2.ZERO

Gets or sets the numeric Property specifying the uniform scale to apply to the image. A scale greater than 1.0 enlarges the label while a scale less than 1.0 shrinks it.

From left to right in the above image, the scales are 0.5, 1.0, and 2.0.

默认值: 1.0

默认值: false

方法

返回值:

定义的类型

属性:

属性名称	类型	可选	默认值	描述信息
show	Property | boolean	<可选>	true	A boolean Property specifying the visibility of the label.
text	Property | string	<可选>		A Property specifying the text. Explicit newlines '\n' are supported.
font	Property | string	<可选>	'30px sans-serif'	A Property specifying the CSS font.
style	Property | LabelStyle	<可选>	LabelStyle.FILL	A Property specifying the LabelStyle.
scale	Property | number	<可选>	1.0	A numeric Property specifying the scale to apply to the text.
showBackground	Property | boolean	<可选>	false	A boolean Property specifying the visibility of the background behind the label.
backgroundColor	Property | Color	<可选>	new Color(0.165, 0.165, 0.165, 0.8)	A Property specifying the background Color.
backgroundPadding	Property | Cartesian2	<可选>	new Cartesian2(7, 5)	A Cartesian2 Property specifying the horizontal and vertical background padding in pixels.
pixelOffset	Property | Cartesian2	<可选>	Cartesian2.ZERO	A Cartesian2 Property specifying the pixel offset.
eyeOffset	Property | Cartesian3	<可选>	Cartesian3.ZERO	A Cartesian3 Property specifying the eye offset.
horizontalOrigin	Property | HorizontalOrigin	<可选>	HorizontalOrigin.CENTER	A Property specifying the HorizontalOrigin.
verticalOrigin	Property | VerticalOrigin	<可选>	VerticalOrigin.CENTER	A Property specifying the VerticalOrigin.
heightReference	Property | HeightReference	<可选>	HeightReference.NONE	A Property specifying what the height is relative to.
fillColor	Property | Color	<可选>	Color.WHITE	A Property specifying the fill Color.
outlineColor	Property | Color	<可选>	Color.BLACK	A Property specifying the outline Color.
outlineWidth	Property | number	<可选>	1.0	A numeric Property specifying the outline width.
translucencyByDistance	Property | NearFarScalar	<可选>		A NearFarScalar Property used to set translucency based on distance from the camera.
pixelOffsetScaleByDistance	Property | NearFarScalar	<可选>		A NearFarScalar Property used to set pixelOffset based on distance from the camera.
scaleByDistance	Property | NearFarScalar	<可选>		A NearFarScalar Property used to set scale based on distance from the camera.
distanceDisplayCondition	Property | DistanceDisplayCondition	<可选>		A Property specifying at what distance from the camera that this label will be displayed.
disableDepthTestDistance	Property | number	<可选>		A Property specifying the distance from the camera at which to disable the depth test to.