ToastGrid Class Reference

Convenience class that can be used to compute the TOAST grid points. More...

#include <StelToastGrid.hpp>

Public Member Functions
	ToastGrid (int maxLevel)
QVector< Vec3d >	getVertexArray (int level, int x, int y, int resolution) const
	Get the vertex array for a given tile. More...
QVector< Vec2f >	getTextureArray (int level, int x, int y, int resolution) const
	Get the texture array for a given tile. More...
QVector< unsigned short >	getTrianglesIndex (int level, int x, int y, int resolution) const
	Get the index of the vertex from getVertexArray sorted as a list of triangles. More...
QVector< Vec3d >	getPolygon (int level, int x, int y) const
	Returns the polygon contouring a given tile. More...
int	getMaxLevel () const
	Return the max TOAST level of this grid.

Detailed Description

The ToastGrid class allows to compute the vertex arrays associated with TOAST tiles. Each method refers to a tile by its level and x and y coordinates.

Member Function Documentation

QVector<Vec3d> ToastGrid::getPolygon	(	int	level,
		int	x,
		int	y
	)		const

Parameters

level	the TOAST level of the tile.
x	the x coordinate of the tile.
y	the y coordinate of the tile.

QVector<Vec2f> ToastGrid::getTextureArray	(	int	level,
		int	x,
		int	y,
		int	resolution
	)		const

The position are stored in a grid

Parameters

level	the TOAST level of the tile.
x	the x coordinate of the tile.
y	the y coordinate of the tile.
resolution	the resolution of the returned array. TODO: UNITS?

QVector<unsigned short> ToastGrid::getTrianglesIndex	(	int	level,
		int	x,
		int	y,
		int	resolution
	)		const

Parameters

level	the TOAST level of the tile.
x	the x coordinate of the tile.
y	the y coordinate of the tile.
resolution	the resolution of the returned array. TODO: UNITS?

QVector<Vec3d> ToastGrid::getVertexArray	(	int	level,
		int	x,
		int	y,
		int	resolution
	)		const

The position are stored in a grid.

Parameters

level	the TOAST level of the tile.
x	the x coordinate of the tile.
y	the y coordinate of the tile.
resolution	the resolution of the returned array. TODO: UNITS?