Extract Surface

Usage Instructions

Based on TIN terrain tile data, the Extract Surface function supports extracting TIN terrain data of specified levels within a designated range, and saves the extraction results as a model dataset.

Function Entry

  • 3D Data tab -> TIN Terrain group -> TIN Tools -> Extract Surface
  • Tool Bar->3D Data->TIN Process->TIN Extract Surface

Operation Steps

  1. Right-click Data Source in the Workspace Manager, select Open File-based Data Source, and open the required data source.
  2. In the 3D Data tab, within the TIN Terrain group, click the Extract Surface button in the TIN Tools drop-down menu, and the 'Extract TIN Surface' dialog box will pop up.
  3. Set the source data, levels, extent polygon, and result data parameters as needed. For specific parameter settings, refer to the TIN Extract Surface documentation.
    Notes:

    To ensure normal operation of the function, the coordinate system of the range polygon must match the scene type of the TIN terrain tile:

    • For TIN terrain tiles with a spherical scene type, the coordinate system of the range polygon can be a geographic coordinate system or a projected coordinate system.
    • For TIN terrain tiles with a planar scene type, the coordinate system of the range polygon can be a planar coordinate system or a projected coordinate system.
  4. After setting is completed, click OK to perform the Extract TIN Surface operation. After the operation is completed, the result model dataset will be generated in the specified data source.