public SurfaceImage(
			string imageFilePath,
			double north,
			double south,
			double west,
			double east,
			Texture texture,
			WorldWind.Renderable.RenderableObject parentRenderable)
		{
			m_ParentRenderable = parentRenderable;
			m_ImageFilePath = imageFilePath;
			m_North = north;
			m_South = south;
			m_West = west;
			m_East = east;
			m_Texture = texture;
		}