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CVertexGrid Class Reference
Covers the vertex grid underlying the image.
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#include <WarpAlgorithm.h>
List of all members.
Public Methods
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Public Attributes
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Private Methods
Private Attributes
Detailed Description
The main functionality provided by this class is to encapsulate a grid of vertices which can be put at an arbitrary position and can have arbitrary orientation. But in our project, the vertex grid lies in the z=0 plane.
Moreover, the resolution of the field can be set dynamically.
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See also:
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CVertexGrid::SetGridData(VECTOR3D, VECTOR3D, VECTOR3D, int, int)
The data holded by this structure is modified with the warping transformation and rendered in the ContourWarpEffect class.
Constructor & Destructor Documentation
CVertexGrid::CVertexGrid (
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)
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Initializes the pointers to NULL and sets the grid resolution to 0. |
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Creates the field by calling SetGridData(VECTOR3D,VECTOR3D,VECTOR3D,int,int) |
CVertexGrid::~CVertexGrid (
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)
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Deallocates all memory needed. |
Member Function Documentation
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This method initializes a rectangular vertex grid in 3D-space. -
Parameters:
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vTopLeft
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The top left vertex of the grid |
vTopRight
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The top right vertex of the grid |
vBottomLeft
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The bottom left vertex of the grid |
numCols
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number of columns in grid |
numRows
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number of rows in grid
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Returns:
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false if there isn't enough memory it fails, true otherwise. |
void CVertexGrid::ResetVertices (
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)
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This is achieved by copying the backup array to the vertex array |
VECTOR3D & CVertexGrid::Vector (
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int index ) [inline]
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Parameters:
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index
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The index of the vertex in the vertex grid |
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Returns:
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a reference to the coordinates
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float * CVertexGrid::TexCoord (
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int index ) [inline]
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Parameters:
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index
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The index of the vertex in the vertex grid |
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Returns:
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a pointer to the texture coordinates
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VECTOR3D & CVertexGrid::Vector (
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int x,
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int y ) [inline]
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Parameters:
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x
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Column of the vertex in the vertex grid |
y
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Row of the vertex in the vertex grid |
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Returns:
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a pointer to the coordinates
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float * CVertexGrid::TexCoord (
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int x,
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int y ) [inline]
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Parameters:
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x
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Column of the vertex in the vertex grid |
y
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Row of the vertex in the vertex grid |
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Returns:
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a pointer to the texture coordinates
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float & CVertexGrid::TexCoord (
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int x,
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int y,
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int index ) [inline]
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Parameters:
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x
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Column of the vertex in the vertex grid |
y
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Row of the vertex in the vertex grid |
index
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specifies whether the s or t texcoord is returned. |
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Returns:
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the texture coordinate
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Member Data Documentation
VECTOR3D * CVertexGrid::m_pInitVertices [private]
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In order to accelerate the resetting of the vertices this vertex array stores the initial positions of the vertices. |
float * CVertexGrid::m_pTexCoords [private]
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This information is only used for rendering. |
The documentation for this class was generated from the following file:
Generated at Fri Apr 19 16:53:06 2002 for GLFramework by
1.2.6 written by Dimitri van Heesch,
© 1997-2001