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IG::SymbolsPlane Class

The functionality described in this article is not available in the Community SDK edition.
You should upgrade to Sim SDK edition to use it.
Header: #include <UnigineIG.h>

This class represents the IG Symbols Plane interface. A symbol surface (plane) is a rectangular, two-dimensional drawing region on a virtual plane on which symbols may be drawn. Such plane is placed in 3D space relative to a particular entity or coincident with the near clipping plane of a particular view.

IG plugin must be loaded.

SymbolsPlane Class


int getID ( ) #

Returns the plane identifier.

Return value

Identifier of the plane.

void addSymbol ( Symbol * symbol ) #

Adds the specified symbol to the plane.


  • Symbol * symbol - ID of the symbol.

void setBillboard ( bool enable, bool fixed_scale ) #

Toggles on and off the plane orientation to the viewer and fixing the plane size regardless of the distance to it.


  • bool enable - 1 to make the plane a billboard (always oriented to the viewer), 0 to disable orientation to the viewer.
  • bool fixed_scale - 1 to make the billboard size unchanged regardless of its distance from the viewer, 0 — to disable.

bool isBillboard ( ) #

Checks if a node is a billboard (always oriented to the viewer).

Return value

1 if a node is a billboard, otherwise 0.

bool isFixedBillboardScale ( ) #

Checks if the billboard size is fixed relative to the viewer regardless of the distance.

Return value

1 if the billboard scale is fixed, otherwise 0.

void setPosition ( const vec3 & value ) #

Sets the plane position relative to the entity, if the plane has a parent entity.


  • const vec3 & value - Position in the coordinate system of a parent entity.

void setRotation ( const quat & rotate ) #

Sets the plane rotation relative to the parent entity. The method is not applicable to billboards.


  • const quat & rotate - Rotation quaternion for the plane

void setPhysicalSize ( float width, float height ) #

Sets the plane size for planes that have a parent entity.


  • float width
  • float height

void setUVSize ( float minU, float minV, float maxU, float maxV ) #

Sets the symbol surface 2D coordinate system.


  • float minU - Minimum U value of the symbol surface.
  • float minV - Minimum V value of the symbol surface.
  • float maxU - Maximum U value of the symbol surface.
  • float maxV - Maximum V value of the symbol surface.

void setScreenSize ( float width, float height, float offsetX, float offsetY ) #

Sets the screen plane resolution and offset in pixels.


  • float width - Width of the screen plane, in pixels.
  • float height - Height of the screen plane, in pixels.
  • float offsetX - Horizontal offset of the screen plane.
  • float offsetY - Vertical offset of the screen plane.
Last update: 2020-04-10