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Label
This page describes the possible content of a CZML document or stream. Please read CZML Structure for an explanation of how a CZML document is put together.
A string of text.
Interpolatable: no
show - Boolean
Whether or not the label is shown.
Default: true
text - String
The text displayed by the label. The newline character (\n) indicates line breaks.
font - Font
The font to use for the label.
Default: 30px sans-serif
style - LabelStyle
The style of the label.
Default: FILL
scale - Double
The scale of the label. The scale is multiplied with the pixel size of the label's text. For example, if the scale is 2.0, the label will be rendered with twice the number of pixels, in each direction, of the text.
Default: 1.0
showBackground - Boolean
Whether or not a background behind the label is shown.
Default: false
backgroundColor - Color
The color of the background behind the label.
Default: [0.165, 0.165, 0.165, 0.8]
backgroundPadding - BackgroundPadding
The amount of padding between the text and the label's background.
Default: [7, 5]
pixelOffset - PixelOffset
The offset, in viewport pixels, of the label origin from the position. A pixel offset is the number of pixels up and to the right to place the label, relative to the position.
Default: [0.0, 0.0]
eyeOffset - EyeOffset
The eye offset of the label, which is the offset in eye coordinates at which to place the label relative to the position property. Eye coordinates are a left-handed coordinate system where the X-axis points toward the viewer's right, the Y-axis points up, and the Z-axis points into the screen.
Default: [0.0, 0.0, 0.0]
horizontalOrigin - HorizontalOrigin
The horizontal origin of the label. It controls whether the label is left-, center-, or right-aligned with the position.
Default: CENTER
verticalOrigin - VerticalOrigin
The vertical origin of the label. It controls whether the label image is bottom-, center-, or top-aligned with the position.
Default: CENTER
heightReference - HeightReference
The height reference of the label, which indicates if the position is relative to terrain or not.
Default: NONE
fillColor - Color
The fill color of the label.
Default: white
outlineColor - Color
The outline color of the label.
Default: black
outlineWidth - Double
The outline width of the label.
Default: 1.0
translucencyByDistance - NearFarScalar
How the label's translucency should change based on the label's distance from the camera. This scalar value should range from 0 to 1.
pixelOffsetScaleByDistance - NearFarScalar
How the label's pixel offset should change based on the label's distance from the camera. This scalar value will be multiplied by pixelOffset.
scaleByDistance - NearFarScalar
How the label's scale should change based on the label's distance from the camera. This scalar value will be multiplied by scale.
distanceDisplayCondition - DistanceDisplayCondition
The display condition specifying the distance from the camera at which this label will be displayed.
disableDepthTestDistance - Double
The distance from the camera at which to disable the depth test. This can be used to prevent clipping against terrain, for example. When set to zero, the depth test is always applied. When set to Infinity, the depth test is never applied.
Default: 0.0