VisLU Flow 0.1
Public Member Functions | Public Attributes | Friends

FlowGeometry Class Reference

class for handling the geometry == rectangular grids organized in vertices and cells More...

#include <FlowGeometry.h>

List of all members.

Public Member Functions

 ~FlowGeometry ()
 deletes the allocated geometry storage
bool getInterpolationAt (vec3 pos, int *vtxID, float *coef)
 Returns true if inside. Stores the vertex indices and interpolation weights for the given position in the arrays.
bool readFromFile (char *header, FILE *fp, bool bigEndian)
 reads the geometry gris data from a file
vec3 getPos (int vtxID)
 returns the position of the vertex
int getDimX ()
 returns the number of vertices in X dimension
int getDimY ()
 returns the number of vertices in Y dimension
int getDimZ ()
 returns the number of vertices in Z dimension, is always 1
float getMinX ()
 returns the minimum in the X dimension
float getMaxX ()
 returns the maximum in the X dimension
float getMinY ()
 returns the minimum in the Y dimension
float getMaxY ()
 returns the maximum in the Y dimension
int getRightNeigh (int vtxID)
 returns the vertex ID of the neighbour on its right
int getTopNeigh (int vtxID)
 returns the vertex ID of the neighbour on its top
int getLeftNeigh (int vtxID)
 returns the vertex ID of the neighbour on its left
int getBottomNeigh (int vtxID)
 returns the vertex ID of the neighbour on its bottom
vec3 normalizeCoords (vec3 pos)
 compression of coordinates in each dimension separately, returns values scaled to <0,1>
vec3 unNormalizeCoords (vec3 pos)
 inverts the compression. From values of <0,1> it restores the real geometrical coordinates

Public Attributes

vec3geometryData
 Storage for the geometry.

Friends

class FlowData

Detailed Description

class for handling the geometry == rectangular grids organized in vertices and cells


Member Function Documentation

bool FlowGeometry::getInterpolationAt ( vec3  pos,
int *  vtxID,
float *  coef 
)

Returns true if inside. Stores the vertex indices and interpolation weights for the given position in the arrays.

Stores the indexes and weights of vertices surrounding the given position. This information can be used later on for interpolation of channel values.

Parameters:
posgeometrical position for the lookup
vtxIDlist of surrounding vertices (given by vertex ID)
coeflist of surrounding vertex weights (sum == 1.0)
Returns:
true if the given position is inside of the geometrical boundaries

The documentation for this class was generated from the following files:
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