SceneNodeAnnotation.h

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#pragma once
 
namespace osg
{
    class Node;
    class Switch;
}
 
#include "Geometry.h"
#include "SceneNodeBase.h"
 
#include <string>
#include <array>
 
#include <osg/Array>
 
class SceneNodeAnnotation : public SceneNodeBase
{
public:
    SceneNodeAnnotation() : triangles(nullptr), edges(nullptr), edgesHighlighted(nullptr), vertices(nullptr), verticesHighlighted(nullptr) {};
    virtual ~SceneNodeAnnotation();
 
    virtual void setTransparent(bool t) override;
    virtual void setWireframe(bool w) override;
    virtual void setVisible(bool v) override;
    virtual void setHighlighted(bool h) override;
 
    void initializeFromData(const double edgeColorRGB[3], 
                            const std::vector<std::array<double, 3>> &points,
                            const std::vector<std::array<double, 3>> &points_rgb,
                            const std::vector<std::array<double, 3>> &triangle_p1,
                            const std::vector<std::array<double, 3>> &triangle_p2,
                            const std::vector<std::array<double, 3>> &triangle_p3,
                            const std::vector<std::array<double, 3>> &triangle_rgb);
 
    virtual bool isItem1D(void) { return false; };
    virtual bool isItem3D(void) { return true; };
 
private:
    osg::Node * createOSGNodeFromTriangles(const std::vector<std::array<double, 3>> &triangle_p1,
                                           const std::vector<std::array<double, 3>> &triangle_p2,
                                           const std::vector<std::array<double, 3>> &triangle_p3,
                                           const std::vector<std::array<double, 3>> &triangle_rgb);
    void calculateCrossProduct(double vector1[3], double vector2[3], double normal[3]);
    void createOSGNodeFromEdges(const double colorRGB[3],
                                const std::vector<std::array<double, 3>> &triangle_p1,
                                const std::vector<std::array<double, 3>> &triangle_p2,
                                const std::vector<std::array<double, 3>> &triangle_p3,
                                osg::Node *&edgesNode, osg::Node *&edgesHighlightedNode);
    osg::Node *buildEdgesOSGNode(unsigned long long nEdges, osg::Vec3Array *vertices, double r, double g, double b, bool depthTest);
    void createOSGNodeFromVertices(const std::vector<std::array<double, 3>> &points,
                                   const std::vector<std::array<double, 3>> &points_rgb,
                                   osg::Node *&verticesNode, osg::Node *&verticesHighlightedNode);
 
    osg::Node   *triangles;
    osg::Node   *edges;
    osg::Node   *edgesHighlighted;
    osg::Node   *vertices;
    osg::Node   *verticesHighlighted;
};