Describes an ellipse defined by a center point and semi-major and semi-minor axes.
The ellipse conforms to the curvature of the globe and can be placed on the surface or
at altitude and can optionally be extruded into a volume.
The center point is determined by the containing
Entity
.
参数名称 | 类型 | 描述信息 |
---|---|---|
options |
EllipseGraphics.ConstructorOptions | 可选 Object describing initialization options |
成员(属性)
classificationType : Property|undefined
Gets or sets the
ClassificationType
Property specifying whether this ellipse will classify terrain, 3D Tiles, or both when on the ground.
-
默认值:
ClassificationType.BOTH
readonly definitionChanged : Event
Gets the event that is raised whenever a property or sub-property is changed or modified.
distanceDisplayCondition : Property|undefined
Gets or sets the
DistanceDisplayCondition
Property specifying at what distance from the camera that this ellipse will be displayed.
extrudedHeight : Property|undefined
Gets or sets the numeric Property specifying the altitude of the ellipse extrusion.
Setting this property creates volume starting at height and ending at this altitude.
extrudedHeightReference : Property|undefined
Gets or sets the Property specifying the extruded
HeightReference
.
-
默认值:
HeightReference.NONE
fill : Property|undefined
Gets or sets the boolean Property specifying whether the ellipse is filled with the provided material.
-
默认值:
true
granularity : Property|undefined
Gets or sets the numeric Property specifying the angular distance between points on the ellipse.
-
默认值:
{CesiumMath.RADIANS_PER_DEGREE}
height : Property|undefined
Gets or sets the numeric Property specifying the altitude of the ellipse.
-
默认值:
0.0
heightReference : Property|undefined
Gets or sets the Property specifying the
HeightReference
.
-
默认值:
HeightReference.NONE
material : MaterialProperty|undefined
Gets or sets the Property specifying the material used to fill the ellipse.
-
默认值:
Color.WHITE
numberOfVerticalLines : Property|undefined
Gets or sets the numeric Property specifying the number of vertical lines to draw along the perimeter for the outline.
-
默认值:
16
outline : Property|undefined
Gets or sets the Property specifying whether the ellipse is outlined.
-
默认值:
false
outlineColor : Property|undefined
Gets or sets the Property specifying the
Color
of the outline.
-
默认值:
Color.BLACK
outlineWidth : Property|undefined
Gets or sets the numeric Property specifying the width of the outline.
Note: This property will be ignored on all major browsers on Windows platforms. For details, see (@link https://github.com/CesiumGS/cesium/issues/40}.
-
默认值:
1.0
rotation : Property|undefined
Gets or sets the numeric property specifying the rotation of the ellipse counter-clockwise from north.
-
默认值:
0
semiMajorAxis : Property|undefined
Gets or sets the numeric Property specifying the semi-major axis.
semiMinorAxis : Property|undefined
Gets or sets the numeric Property specifying the semi-minor axis.
shadows : Property|undefined
Get or sets the enum Property specifying whether the ellipse
casts or receives shadows from light sources.
-
默认值:
ShadowMode.DISABLED
show : Property|undefined
Gets or sets the boolean Property specifying the visibility of the ellipse.
-
默认值:
true
stRotation : Property|undefined
Gets or sets the numeric property specifying the rotation of the ellipse texture counter-clockwise from north.
-
默认值:
0
zIndex : ConstantProperty|undefined
Gets or sets the zIndex Property specifying the ellipse ordering. Only has an effect if the ellipse is constant and neither height or extrudedHeight are specified
-
默认值:
0
方法
clone(result) → EllipseGraphics
Duplicates this instance.
参数名称 | 类型 | 描述信息 |
---|---|---|
result |
EllipseGraphics | 可选 The object onto which to store the result. |
返回值:
The modified result parameter or a new instance if one was not provided.
Assigns each unassigned property on this object to the value
of the same property on the provided source object.
参数名称 | 类型 | 描述信息 |
---|---|---|
source |
EllipseGraphics | The object to be merged into this object. |
定义的类型
Initialization options for the EllipseGraphics constructor
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 ellipse. |
semiMajorAxis |
Property | number |
<可选> |
The numeric Property specifying the semi-major axis. | |
semiMinorAxis |
Property | number |
<可选> |
The numeric Property specifying the semi-minor axis. | |
height |
Property | number |
<可选> |
0 | A numeric Property specifying the altitude of the ellipse relative to the ellipsoid surface. |
heightReference |
Property | HeightReference |
<可选> |
HeightReference.NONE | A Property specifying what the height is relative to. |
extrudedHeight |
Property | number |
<可选> |
A numeric Property specifying the altitude of the ellipse's extruded face relative to the ellipsoid surface. | |
extrudedHeightReference |
Property | HeightReference |
<可选> |
HeightReference.NONE | A Property specifying what the extrudedHeight is relative to. |
rotation |
Property | number |
<可选> |
0.0 | A numeric property specifying the rotation of the ellipse counter-clockwise from north. |
stRotation |
Property | number |
<可选> |
0.0 | A numeric property specifying the rotation of the ellipse texture counter-clockwise from north. |
granularity |
Property | number |
<可选> |
Cesium.Math.RADIANS_PER_DEGREE | A numeric Property specifying the angular distance between points on the ellipse. |
fill |
Property | boolean |
<可选> |
true | A boolean Property specifying whether the ellipse is filled with the provided material. |
material |
MaterialProperty | Color |
<可选> |
Color.WHITE | A Property specifying the material used to fill the ellipse. |
outline |
Property | boolean |
<可选> |
false | A boolean Property specifying whether the ellipse is outlined. |
outlineColor |
Property | Color |
<可选> |
Color.BLACK | A Property specifying the Color of the outline. |
outlineWidth |
Property | number |
<可选> |
1.0 | A numeric Property specifying the width of the outline. |
numberOfVerticalLines |
Property | number |
<可选> |
16 | A numeric Property specifying the number of vertical lines to draw along the perimeter for the outline. |
shadows |
Property | ShadowMode |
<可选> |
ShadowMode.DISABLED | An enum Property specifying whether the ellipse casts or receives shadows from light sources. |
distanceDisplayCondition |
Property | DistanceDisplayCondition |
<可选> |
A Property specifying at what distance from the camera that this ellipse will be displayed. | |
classificationType |
Property | ClassificationType |
<可选> |
ClassificationType.BOTH | An enum Property specifying whether this ellipse will classify terrain, 3D Tiles, or both when on the ground. |
zIndex |
ConstantProperty | number |
<可选> |
0 | A property specifying the zIndex of the Ellipse. Used for ordering ground geometry. Only has an effect if the ellipse is constant and neither height or exturdedHeight are specified. |