OpenLayer Offline Manual

OpenLayer | Settings | SetCollisionPolyAlphaLimit SetCollisionPolyAlphaLimit
static void SetCollisionPolyAlphaLimit( | float alpha )
Sets the maxium alpha value which is considered transparent by the collision polygon generation The default value is 0.5. This setting doesn't, or course, affect collision polygons which are already created. Examples // Set the alpha limit to 0.3 and create a Bitmap with a collision polygon // Settings::SetCollisionPolyAlphaLimit( 0.3 ); Bitmap myBmp( "gfx/MyImage.png", CREATE_COLLISION_POLY ); Other functions of the class Settings
SetAntialiasing | Turns the anti-aliasing on or off
SetCircleAccuracy | Sets the accuracy of the circle drawing functions
SetCollisionPolyAccuracy | Sets the accuracy of the generated collision polygons
SetCollisionPolyAlphaLimit | Sets the maxium alpha value which is considered transparent by the collision polygon generation
Advanced functions
SetTextureMapping | Turns the OpenGL texture mapping on or off
TextureMappingUsed | Returns true if texture mapping is turned on
SetOrthographicProjection | Sets the orthographic projection as the active OpenGL projection mode
RestoreOldProjection | Restores the old projection mode
StoreMemoryBitmaps | Choose the Bitmaps to be stored in the memory
MemoryBitmapsStored | Returns true if the Bitmaps are stored in the memory
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