CreatePointCloudModel

The CreatePointCloudModel method imports a Point Cloud object from a file and places it in the 3D Window. Currently, TerraExplorer supports Skyline’s proprietary Point Cloud files (CPT).

HRESULT CreatePointCloudModel(

[in] BSTR ModelFileName,

[in] double X,

[in] double Y,

[in] double Elevation,

[in, optional, defaultvalue(0)] double Yaw,

[in, optional, defaultvalue(0)] double Pitch,

[in, optional, defaultvalue(0)] double Roll,

[in, optional, defaultvalue(0)] HeightStyleCode HeightStyle,

[in, optional, defaultvalue(0)] long GroupID,

[in, optional, defaultvalue("")] BSTR Description,

[out, retval] ITerrainPointCloudModel5** pITerrainPointCloudModel5);

Parameters:

• ModelFileName – A full path name or a URL to the point cloud model to import to the terrain.

• X – The West-East coordinate of the center of the point cloud model, in MPT units. You can use the ITerrain interface to retrieve information about the MPT units. If you are working in Lat-Long format, the Lat-Long values are in decimal Lat-Long.

• Y – The North-South coordinate of the center of the point cloud model, in MPT units. You can use the ITerrain interface to retrieve information about the MPT units. If you are working in Lat-Long format, the Lat-Long values are in decimal Lat-Long.

• Elevation – The elevation of the point cloud model relative to the terrain.

• Yaw – The Yaw angle of the point cloud model. See: “Yaw, Pitch and Roll Angles”.

• Pitch – The Pitch angle of the point cloud model. See: “Yaw, Pitch and Roll Angles”.

• Roll – The Roll angle of the point cloud model. See: “Yaw, Pitch and Roll Angles”.

• HeightStyle – An enum determining how the point cloud model is placed on the terrain.

The HeightStyleCode enum can use any of the following values:

• HSC_TERRAIN_RELATIVE = 0
  The height above the terrain of the model’s pivot is determined by the Elevation parameter.

• HSC_TERRAIN_ABSOLUTE = 3
  The height relative to the terrain database vertical datum base ellipsoid of the model’s pivot is determined by the Elevation parameter.

• GroupID – The Information Tree group in which the point cloud model is 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 the IInformationTree5::CreateGroup.

• If you know the name of the group, find it using IInformationTree5::FindItem.

• Traverse the Tree using IInformationTree5 methods such as GetNextItem, until you come to the desired GroupID.

• Description – The name of the point cloud model as it appears in the Information Window. If an empty string is passed into this parameter, TerraExplorer assigns it a unique name.

• pITerrainPointCloudModel5 – An interface pointer to the newly created point cloud model. This parameter must not be Null.

Return Values:

The return value obtained from the returned HRESULT can be one of the following: