CreateArc

The CreateArc method creates an arc in the 3D Window.

 

JavaScript
CreateArc(       Position,       RadiusX,       RadiusY,       StartAngle ,       EndEngle ,       LineColor ,       FillColor ,       NumOfSegments ,       GroupID ,       Description)

 

C#
ITerrainArc6 CreateArc(      IPosition6 Position,      double      RadiusX,      double      RadiusY,      double      StartAngle = -90,      double      EndEngle = 90,      object      LineColor = -16711936,      object      FillColor = -10197916,      int         NumOfSegments = -1,      int         GroupID = 0,      string      Description = "")

 

C++
HRESULT CreateArc(        IPosition6 *     Position,        double     RadiusX,        double     RadiusY,        double     StartAngle,        double     EndEngle,        VARIANT    LineColor,        VARIANT    FillColor,        long       NumOfSegments,        LONG_PTR   GroupID,        BSTR       Description,        ITerrainArc6 **  pITerrainArc6)

 

Parameters

Position

An IPosition6 representing the position and orientation of the object on the terrain.

RadiusX

The radius of the arc along the x-axis in meters.

RadiusY

The radius of the arc along the y-axis in meters

StartAngle

The angle at which the arc begins.

EndAngle

The angle at which the arc ends.

LineColor

The color of the lines that make up the arc. The color value is used to specify an RGB color. When specifying an explicit RGB color, the color value has the following hexadecimal form: 0x00bbggrr. The low-order byte contains a value for the relative intensity of red; the second byte contains a value for green; and the third byte contains a value for blue. The high-order byte must be zero. The maximum value for a single byte is 0xFF.

FillColor

The color with which the arc is filled if the alpha value is greater than 0. The color value is used to specify an RGB color. When specifying an explicit RGB color, the color value has the following hexadecimal form: 0x00bbggrr. The low-order byte contains a value for the relative intensity of red; the second byte contains a value for green; and the third byte contains a value for blue. The high-order byte must be zero. The maximum value for a single byte is 0xFF.

NumofSegments

The number of segments from which the arc is created. The greater the number of segments; the smoother the shape.

GroupID

The Project Tree group in which the arc was created. If it is set to zero, the object is created under the root. You can obtain the GroupID by one of the following methods:

§   Create the group using IProjectTree6.CreateGroup.

§  Find the group, if you know the name, using IProjectTree6.FindItem.

§  Traverse the Tree using IProjectTree6 methods such as GetNextItem(), until you come to the desired GroupID.

Description

The name of the arc as it appears in the Project Tree. If an empty string is passed into this parameter, TerraExplorer assigns it a unique name.

Return Value

pITerrainArc6

An ITerrainArc6 representing the newly created arc.

Exceptions

See: HRESULT Return Values for a list of possible values returned by the HRESULT.