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#pragma once
#include "glGrib/OpenGL.h"
#include "glGrib/Program.h"
#include "glGrib/Options.h"
#include "glGrib/Projection.h"
#include <glm/glm.hpp>
#include <glm/gtc/matrix_transform.hpp>
#include <string>
namespace glGrib
{
class View
{
public:
enum transform_type
{
PERSPECTIVE=0,
ORTHOGRAPHIC=1,
};
static transform_type typeFromString (std::string);
void setMVP (Program *) const;
void delMVP (Program *) const;
void calcMVP ();
void calcCoordm ();
void setViewport (int, int);
const glm::vec3 project (const glm::vec3 & xyz) const
{
return glm::project (xyz, view * model, projection, viewport);
}
const glm::vec3 unproject (const glm::vec3 & xyz) const
{
return glm::unProject (xyz, view * model, projection, viewport);
}
const glm::vec3 intersectPlane (const double &, const double &, const glm::vec3 &, const glm::vec3 &) const;
const glm::vec3 intersectSphere (const double &, const double &, const glm::vec3 &, const float &) const;
int getLatLonFromScreenCoords (float, float, float *, float *) const;
int getScreenCoordsFromLatLon (float *, float *, float, float) const;
int getScreenCoordsFromXYZ (float *, float *, const glm::vec3 &) const;
int getXYZFromScreenCoords (float, float, glm::vec3 *) const;
float pixelToDistAtNadir (float) const;
float fracToDistAtNadir (float) const;
void nextProjection () { ps.next (); opts.projection = ps.currentName (); calcMVP (); }
Projection * getProjection () const { return ps.current (); }
int getWidth () const { return width; }
int getHeight () const { return height; }
void toggleTransformType ();
void setup (const OptionsView &);
const glm::mat4 & getMVP () const { return MVP; }
const OptionsView & getOptions () const { return opts; }
void setOptions (const OptionsView & o) { opts = o; calcMVP (); calcZoom (); }
float getRatio () const { return (float)width/(float)height; }
void calcZoom ();
private:
const glm::mat3 & getCoordm () const;
OptionsView opts;
int width, height;
ProjectionSet ps;
glm::mat4 model, view, projection, MVP;
glm::mat3 zoom_roti, zoom_rotd;
glm::vec4 viewport;
glm::mat3 coordm;
};
}
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