source: trunk/packages/vizservers/nanovis/TransferFunction.h @ 3568

Last change on this file since 3568 was 3568, checked in by ldelgass, 7 years ago

Fix crash on getting transfer function name, remove unused plane command.

  • Property svn:eol-style set to native
File size: 1.8 KB
Line 
1/* -*- mode: c++; c-basic-offset: 4; indent-tabs-mode: nil -*- */
2/*
3 * ----------------------------------------------------------------------
4 * ColorMap.h: color map class contains an array of (RGBA) values
5 *
6 * ======================================================================
7 *  AUTHOR:  Wei Qiao <qiaow@purdue.edu>
8 *           Purdue Rendering and Perceptualization Lab (PURPL)
9 *
10 *  Copyright (c) 2004-2013  HUBzero Foundation, LLC
11 *
12 *  See the file "license.terms" for information on usage and
13 *  redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES.
14 * ======================================================================
15 */
16#ifndef TRANSFER_FUNCTION_H
17#define TRANSFER_FUNCTION_H
18
19#include <string>
20
21#include <vrmath/Vector3f.h>
22
23#include "Texture1D.h"
24
25class TransferFunction
26{
27public:
28    TransferFunction(const char *name, int size, float *data);
29
30    void update(float *data);
31
32    void update(int size, float *data);
33
34    GLuint id()
35    {
36        return _id;
37    }
38
39    void id(GLuint id)
40    {
41        _id = id;
42    }
43
44    Texture1D *getTexture()
45    {
46        return _tex;
47    }
48
49    float *getData()
50    { 
51        return _data; 
52    }
53
54    int getSize() const
55    {
56        return _size;
57    }
58
59    const char *name() const
60    {
61        return _name.c_str();
62    }
63
64    static void sample(float fraction, float *key, int count, vrmath::Vector3f *keyValue, vrmath::Vector3f *ret);
65
66    static void sample(float fraction, float *key, int count, float *keyValue, float *ret);
67
68protected :
69    ~TransferFunction();
70
71private:
72    /// the resolution of the color map, how many (RGBA) quadraples
73    int _size;
74    float *_data;
75    Texture1D *_tex;    ///< the texture storing the colors
76    std::string _name;
77    GLuint _id;         ///< OpenGL texture identifier
78};
79
80#endif
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