ContourRenderer.h

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//************************************************************************
//                                                                       *
//                          Copyright (C)  2018                          *
//            University Corporation for Atmospheric Research            *
//                          All Rights Reserved                          *
//                                                                       *
//************************************************************************/
//
//  File:   ContourRenderer.cpp
//
//  Author: Stas Jaroszynski
//          National Center for Atmospheric Research
//          PO 3000, Boulder, Colorado
//
//  Date:   March 2018
//
//  Description:
//          Definition of ContourRenderer
//
#ifndef CONTOURRENDERER_H
#define CONTOURRENDERER_H
 
#include <vapor/glutil.h>
#include "vapor/VAssert.h"
#include <vapor/Renderer.h>
#include <vapor/ContourParams.h>
#include <vapor/ShaderProgram.h>
#include <vapor/Texture.h>
 
#include <glm/glm.hpp>
 
namespace VAPoR {
 
class DataMgr;
 
class RENDER_API ContourRenderer : public Renderer {
public:
    ContourRenderer(const ParamsMgr *pm, string winName, string dataSetName, string instName, DataMgr *dataMgr);
 
    virtual ~ContourRenderer();
 
    static string GetClassType() { return ("Contour"); }
 
    virtual int _initializeGL();
    virtual int _paintGL(bool fast);
 
private:
    GLuint       _VAO, _VBO;
    Texture1D    _lutTexture;
    unsigned int _nVertices;
 
    struct VertexData;
    struct {
        string         varName;
        string         heightVarName;
        size_t         ts;
        int            level;
        int            lod;
        double         lineThickness;
        vector<double> boxMin, boxMax;
        vector<double> contourValues;
        vector<double> sliceRotation;
        vector<double> sliceNormal;
        vector<double> sliceOrigin;
        double         sliceOffset;
        double         sliceResolution;
        int            sliceOrientationMode;
 
 
    } _cacheParams;
 
    int  _buildCache(bool fast);
    bool _isCacheDirty() const;
    void _saveCacheParams();
 
    void _clearCache() { _cacheParams.varName.clear(); }
 
    vector<glm::vec3> _sliceQuad;
    glm::vec3         _finalOrigin;
};
 
};    // namespace VAPoR
 
#endif    // CONTOURRENDERER_H