1 | /* -*- mode: c++; c-basic-offset: 4; indent-tabs-mode: nil -*- */ |
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2 | #ifndef NV_CONTOURLINEFILTER_H |
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3 | #define NV_CONTOURLINEFILTER_H |
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4 | |
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5 | #include <list> |
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6 | #include <vector> |
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7 | |
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8 | #include <graphics/Geometry.h> |
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9 | #include <vrmath/Vector3f.h> |
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10 | #include <vrmath/Vector4f.h> |
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11 | |
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12 | namespace nv { |
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13 | |
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14 | class ContourLineFilter |
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15 | { |
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16 | public: |
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17 | class ContourLine |
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18 | { |
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19 | public: |
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20 | ContourLine(float value); |
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21 | |
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22 | /** |
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23 | * @return Returns the number of points |
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24 | */ |
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25 | int createLine(int width, int height, vrmath::Vector3f *vertices, bool top); |
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26 | int createLine(int width, int height, vrmath::Vector4f *vertices, bool top); |
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27 | |
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28 | float _value; |
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29 | std::list<vrmath::Vector3f> _points; |
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30 | |
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31 | private: |
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32 | bool isValueWithIn(float v1, float v2) |
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33 | { |
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34 | return ((_value >= v1 && _value <= v2) || |
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35 | (_value >= v2 && _value <= v1)); |
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36 | } |
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37 | void getContourPoint(int vertexIndex1, int vertexIndex2, vrmath::Vector3f *vertices, int width, bool top); |
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38 | void getContourPoint(int vertexIndex1, int vertexIndex2, vrmath::Vector4f *vertices, int width, bool top); |
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39 | }; |
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40 | |
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41 | typedef std::list<ContourLine *> ContourLineList; |
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42 | typedef std::vector<vrmath::Vector3f> Vector3fArray; |
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43 | |
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44 | ContourLineFilter(); |
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45 | |
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46 | nv::graphics::Geometry *create(float min, float max, int linecount, vrmath::Vector3f *vertices, int width, int height); |
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47 | nv::graphics::Geometry *create(float min, float max, int linecount, vrmath::Vector4f *vertices, int width, int height); |
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48 | |
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49 | void setColorMap(Vector3fArray *colorMap); |
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50 | |
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51 | void setHeightTop(bool top) |
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52 | { |
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53 | _top = top; |
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54 | } |
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55 | |
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56 | private: |
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57 | void clear(); |
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58 | |
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59 | ContourLineList _lines; |
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60 | Vector3fArray *_colorMap; |
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61 | bool _top; |
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62 | }; |
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63 | |
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64 | } |
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65 | |
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66 | #endif |
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