root/OpenSceneGraph/trunk/include/osgTerrain/ValidDataOperator @ 13041

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1/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield
2 *
3 * This library is open source and may be redistributed and/or modified under
4 * the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
5 * (at your option) any later version.  The full license is in LICENSE file
6 * included with this distribution, and on the openscenegraph.org website.
7 *
8 * This library is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
11 * OpenSceneGraph Public License for more details.
12*/
13
14#ifndef OSGTERRAIN_VALIDDATAOPERATOR
15#define OSGTERRAIN_VALIDDATAOPERATOR 1
16
17#include <osg/Referenced>
18#include <osg/Vec2>
19#include <osg/Vec3>
20#include <osg/Vec4>
21#include <osgTerrain/Export>
22
23namespace osgTerrain {
24
25struct ValidDataOperator : public osg::Referenced
26{
27    virtual bool operator() (float /*value*/) const { return true; }
28    virtual bool operator() (const osg::Vec2& value) const { return operator()(value.x()) && operator()(value.y()) ; }
29    virtual bool operator() (const osg::Vec3& value) const { return operator()(value.x()) && operator()(value.y()) && operator()(value.z());  }
30    virtual bool operator() (const osg::Vec4& value) const { return operator()(value.x()) && operator()(value.y()) && operator()(value.z()) && operator()(value.w()); }
31};
32
33struct ValidRange : public ValidDataOperator
34{
35    ValidRange(float minValue, float maxValue):
36        _minValue(minValue),
37        _maxValue(maxValue) {}
38
39    void setRange(float minValue, float maxValue)
40    {
41        _minValue = minValue;
42        _maxValue = maxValue;
43    }
44
45    void setMinValue(float minValue) { _minValue = minValue; }
46    float getMinValue() const { return _minValue; }
47
48    void setMaxValue(float maxValue) { _maxValue = maxValue; }
49    float getMaxValue() const { return _maxValue; }
50
51    virtual bool operator() (float value) const { return value>=_minValue && value<=_maxValue; }
52
53    float _minValue, _maxValue;
54};
55
56
57struct NoDataValue : public ValidDataOperator
58{
59    NoDataValue(float value):
60        _value(value) {}
61
62    void setNoDataValue(float value) { _value = value; }
63    float getValue() const { return _value; }
64
65    virtual bool operator() (float value) const { return value!=_value; }
66
67    float _value;
68};
69
70}
71
72#endif
73
74
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