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Unigine::TerrainGlobalLods Class

Header: #include <UnigineObjects.h>

This class is used to manage a group of LODs (level of detail) of the global terrain object.

TerrainGlobalLods Class

Members


int getDataFormat ( ) #

Returns a value indicating current image format for the tile data.

Return value

Tile data image format. One of the Image::FORMAT_* values.

int getDataType ( ) #

Returns a value indicating current image format for the tile data.

Return value

Tile data image type. One of the Image::IMAGE_* values.

int getMaskFormat ( ) #

Returns a value indicating current image format for the tile mask.

Return value

Tile mask image format. One of the Image::FORMAT_* values.

void setNumLayers ( int layers ) #

Sets the number of layers of the LOD group.

Arguments

  • int layers - Number of layers.

int getNumLayers ( ) #

Returns the number of layers of the LOD group.

Return value

Number of layers.

int getNumLods ( ) #

Returns the total number of LODs in the group.

Return value

Total number of LODs.

int addLod ( ) #

Adds a new LOD.

Return value

Index of the last added LOD.

void insertLod ( int num ) #

Inserts a new LOD at the specified position.

Arguments

  • int num - Position to insert a new LOD at.

void removeLod ( int num ) #

Removes the LOD with the specified number.

Arguments

  • int num - LOD number.

void clearLods ( ) #

Removes all LODs.

int fetch ( const BoundSphere & bs, const BoundBox & bb, int force = 0 ) #

Loads the data of all LODs for the tiles within a given bounding box and a bounding sphere.

Arguments

  • const BoundSphere & bs - Bounding sphere.
  • const BoundBox & bb - Bounding box.
  • int force - Force flag. Use 1 to load files in any case; otherwise, 0. The default value is 0.

Return value

1 if the data of all LODs was fetched successfully; otherwise, 0.

int fetchData ( double x, double y, Pixel & ret_pixel, int layer, bool force ) #

Fetches the data for the point on the terrain with given coordinates and puts it to the specified output structure.

Arguments

  • double x - X coordinate of the point on the terrain.
  • double y - Y coordinate of the point on the terrain.
  • Pixel & ret_pixel - Output Pixel structure to store the pixel color.
  • int layer - Layer number.
  • bool force - Force flag.
    • If 1 is specified, the data will be fetched immediately.
    • If 0 is specified, the operation will be queued to a separate thread.
    Notice
    It is recommended to set this flag to 0 when possible to avoid spikes.
    .

Return value

1 if the data for the specified pixel was fetched successfully; otherwise, 0.

int getType ( ) #

Returns the type of LODs.

const char * getName ( ) #

Returns the name of the LOD group.

Return value

LOD group name.

Ptr<TerrainGlobalLod> getLod ( int num ) #

Returns the LOD with a given number.

Arguments

  • int num - LOD number.

Return value

Pointer to TerrainGlobalLod.

String getVideoMemoryUsage ( ) #

Returns information about the total video memory usage for all LODs in the group.

Return value

Total video memory usage for all LODs.
Last update: 2019-11-28
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