doxygen/html/_projector_8h_source.html

 /*  Project nGenEx

-         Destroyer Studios LLC

-         Copyright � 1997-2004. All Rights Reserved.

-

-         SUBSYSTEM:    nGenEx.lib

-         FILE:         Projector.h

-         AUTHOR:       John DiCamillo

-

-

-         OVERVIEW

-         ========

-         3D Projection Camera class

- */

-

- #ifndef Projector_h

- #define Projector_h

-

- #include "Geometry.h"

- #include "Window.h"

- #include "Camera.h"

- #include "Polygon.h"

-

- // +--------------------------------------------------------------------+

-

- class Projector

- {

- public:

-         Projector(Window* win, Camera* cam);

-         virtual ~Projector();

-

-         // Operations:

-         virtual void   UseWindow(Window* win);

-         virtual void   UseCamera(Camera* cam);

-         virtual void   SetDepthScale(float scale);

-         virtual double GetDepthScale() const;

-         virtual void   SetFieldOfView(double fov);

-         virtual double GetFieldOfView() const;

-         virtual int    SetInfinite(int i);

-         virtual void   StartFrame();

-

-         // accessor:

-         Point          Pos() const { return camera->Pos(); }

-         Point          vrt()       { return camera->vrt(); }

-         Point          vup()       { return camera->vup(); }

-         Point          vpn()       { return camera->vpn(); }

-         const Matrix&  Orientation() const { return camera->Orientation(); }

-

-         double         XAngle() const { return xangle; }

-         double         YAngle() const { return yangle; }

-

-         bool           IsOrthogonal()    const { return orthogonal; }

-         void           SetOrthogonal(bool o)   { orthogonal = o;    }

-

-         // projection and clipping geometry:

-         virtual void   Transform(Vec3& vec)    const;

-         virtual void   Transform(Point& point) const;

-

-         virtual void   Project(Vec3& vec, bool clamp=true) const;

-         virtual void   Project(Point& point, bool clamp=true) const;

-         virtual void   ProjectRect(Point& origin, double& w, double& h) const;

-

-         virtual float  ProjectRadius(const Vec3& vec, float radius) const;

-

-         virtual void   Unproject(Point& point) const;

-         int            IsVisible(const Vec3& v, float radius) const;

-         int            IsBoxVisible(const Point* p) const;

-

-         float          ApparentRadius(const Vec3& v, float radius) const;

-

-         virtual void   SetWorldSpace()   { frustum_planes = world_planes; }

-         virtual void   SetViewSpace()    { frustum_planes = view_planes;  }

-

-         Plane*         GetCurrentClipPlanes()  { return frustum_planes; }

-

-         void           SetUpFrustum();

-         void           ViewToWorld(Point& pin, Point& pout);

-         void           ViewToWorld(Vec3&  vin, Vec3&  vout);

-         void           SetWorldspaceClipPlane(Vec3& normal, Plane& plane);

-

- protected:

-         Camera*        camera;

-

-         int            width, height;

-         double         field_of_view;

-         double         xscreenscale, yscreenscale, maxscale;

-         double         xcenter, ycenter;

-         double         xangle,  yangle;

-

-         int            infinite;

-         float          depth_scale;

-         bool           orthogonal;

-

-         enum DISPLAY_CONST {

-                 NUM_FRUSTUM_PLANES= 4,

-         };

-

-         Plane*         frustum_planes;

-         Plane          world_planes[NUM_FRUSTUM_PLANES];

-         Plane          view_planes[NUM_FRUSTUM_PLANES];

-

-         float          xclip0, xclip1;

-         float          yclip0, yclip1;

- };

-

- #endif Projector_h

-

-