Unigine::ObjectTerrainGlobal Class

This class is used to create a global terrain object representing a certain fragment of Earth's surface on the basis of available GIS data (elevation and imagery). The global terrain is rendered using pre-generated tilesets which represent LODs for different data layers (heights, albedo, normals, and masks). Tilesets are managed via the TileSet class. Tileset data is stored in tileset files on the disk, these files are managed via the TileSetFile class

See Also

ObjectTerrainGlobal Class

Members

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static ObjectTerrainGlobalPtr create()

Constructor. Creates a new empty global terrain object with default properties.

static Ptr<ObjectTerrainGlobal> cast(const Ptr<Node> & node)

Casts an ObjectTerrainGlobal out of the Node instance.

Arguments

• const Ptr<Node> & node - Pointer to Node.

Return value

Pointer to ObjectTerrainGlobal.

static Ptr<ObjectTerrainGlobal> cast(const Ptr<Object> & base)

Casts an ObjectTerrainGlobal out of the Object instance.

Arguments

• const Ptr<Object> & base - Pointer to Object.

Return value

Pointer to ObjectTerrainGlobal.

void clear()

Clears all terrain data (lods, textures, details, masks etc.).

static int type()

Returns the type of the object.

Return value

ObjectTerrainGlobal type identifier.

Ptr<TerrainGlobalLods> getAlbedoLods()

Returns the group of terrain albedo LODs.

Return value

Terrain albedo LODs group.

Ptr<Texture> getAlbedoTextureArray()

Returns the albedo textures array.

Return value

Albedo textures array.

void setAlbedoTextureArrayName(const char * name)

Sets the name of the albedo textures array.

Arguments

• const char * name - Name of the albedo textures array.

const char * getAlbedoTextureArrayName()

Returns the name of the albedo textures array.

Return value

Name of the albedo textures array.

int addDetail(const char * name)

Adds a new detail to the vector of terrain details.

Arguments

• const char * name - Detail name.

Return value

Number of the new detail.

int cloneDetail(int num)

Clones the detail with the specified number.

Arguments

• int num - Detail number.

Return value

Number of the new cloned terrain detail.

Ptr<TerrainGlobalDetail> getDetail(int num)

Returns the terrain detail with the specified number.

Arguments

• int num - Detail number.

Return value

Terrain detail.

void removeDetail(int num)

Removes the detail with the specified number.

Arguments

• int num - Detail number.

void swapDetail(int num_0, int num_1)

Swaps two details of the terrain.

Arguments

• int num_0 - Number of the first detail.
• int num_1 - Number of the second detail.

void resizeDetails(int size)

Resizes the vector of terrain details.

Arguments

• int size - New size.

int getNumDetails()

Returns the total number of details.

Return value

Number of details.

int addMask(const char * name)

Adds a new mask to the vector of masks.

Arguments

• const char * name - Mask name.

Return value

Number of the new mask, if the mask was added successfully; otherwise, -1.

int cloneMask(int num)

Clones the mask with the specified number.

Arguments

• int num - Mask number.

Return value

Number of the new cloned mask.

void removeMask(int num)

Removes the mask with the specified number from the vector of masks.

Arguments

• int num - Mask number.

void swapMask(int num_0, int num_1)

Swaps two masks.

Arguments

• int num_0 - Number of the first mask.
• int num_1 - Number of the second mask.

void replaceMasks(const Vector< String > & names)

Replaces the list of masks with a given one.

Arguments

• const Vector< String > & names - New list of masks.

void resizeMasks(int size)

Resizes the vector of masks.

Arguments

• int size - New size.

int getNumMasks()

Returns the total number of masks.

Return value

Number of masks.

Ptr<TerrainGlobalLods> getMaskLods()

Returns the group of terrain mask LODs.

Return value

Terrain mask LODs group.

void setMaskName(int num, const char * name)

Sets the name of the mask with the specified number.

Arguments

• int num - Mask number.
• const char * name - New mask name.

const char * getMaskName(int num)

Returns the name for of mask with the specified number.

Arguments

• int num - Mask number.

Return value

Mask name.

Ptr<TerrainGlobalLods> getHeightLods()

Returns the group of terrain height LODs.

Return value

Terrain height LODs group.

Ptr<Texture> getHeightTextureArray()

Returns the height textures array.

Return value

Height textures array.

void setHeightTextureArrayName(const char * name)

Sets the name of the height textures array.

Arguments

• const char * name - Name of the height textures array.

const char * getHeightTextureArrayName()

Returns the name of the height textures array.

Return value

Name of the height textures array.

Ptr<TerrainGlobalLods> getNormalLods()

Returns the group of terrain normal LODs.

Return value

Terrain normal LODs group.

Ptr<Texture> getNormalTextureArray()

Returns the normal textures array.

Return value

Normal textures array.

void setNormalTextureArrayName(const char * name)

Sets the name of the normal textures array.

Arguments

• const char * name - Name of the normal textures array.

const char * getNormalTextureArrayName()

Returns the name of the normal textures array.

Return value

Name of the normal textures array.

int fetchTopologyData(double x, double y, Math::Vec3 & ret_point, Math::vec3 & ret_normal, Math::vec3 & ret_up, int force = 0)

Returns topology data for a given terrain point

Arguments

• double x - X coordinate of the point.
• double y - Y coordinate of the point.
• Math::Vec3 & ret_point - World coordinates of the point.
• Math::vec3 & ret_normal - Normal coordinates.
• Math::vec3 & ret_up - "Up" vector coordinates.
• int force - Force flag. Use 1 to load files in any case; otherwise, 0. The default value is 0.

Return value

1 if the topology data was fetched successfully; otherwise, 0.