LandPatch Class Reference

Small patch of a landscape. More...

#include <LandPatch.h>

Inheritance diagram for LandPatch:

List of all members.

Public Member Functions
	LandPatch (float *height_field, int size_x, int size_y, int offset_x, int offset_y, int total_x, int total_y, float stride, int xy_jump)
	~LandPatch ()
Private Attributes
float *	data
GLuint *	indices

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Detailed Description

Small patch of a landscape.

A patch of a landscape which gets build from a height field. Uses vertex arrays to display itself.

Definition at line 17 of file LandPatch.h.

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Constructor & Destructor Documentation

LandPatch::LandPatch (  float *  height_field, int  size_x, int  size_y, int  offset_x, int  offset_y, int  total_x, int  total_y, float  stride, int  xy_jump )

Constructor: Builds the geometry for the patch. The parameters of this routines are not validated, which means that the construction will fail if they do not make sense. Parameters: height_field  Pointer to the actual height data used to build the patch. There must be at least 'total_x' * 'total_y' elements. size_x  Size of the patch along the x dimension. size_y  Size of the patch along the y dimension. offset_x  X offset into the height field (used when building a patch that is smaller than the actual height field). offset_y  Y offset into the height field (used when building a patch that is smaller than the actual height field). total_x  Size of the height field along the x dimension. total_y  Size of the height field along the y dimension. stride  Size of the grid squares. The x and y coordinates of the constructed geometry range from (0,0) to ('stride'*'size_x', 'stride'*'size_y'). xy_jump  Used to sample the height field at bigger intervals. Only every 'xy_jump'th value of the height field is taken. Definition at line 4 of file LandPatch.cpp.

LandPatch::~LandPatch (   )

Destructor. Definition at line 122 of file LandPatch.cpp.

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