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#ifndef CAMERA_H
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#define CAMERA_H
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#include <vcg/space/point3.h>
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#include <vcg/math/Matrix44.h>
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namespace vcg {
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template <class T> class ViewGL {
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public:
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void GetView();
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void SetView();
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Point3<T> Project(const Point3<T> &p) const;
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Point3<T> UnProject(const Point3<T> &p) const;
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Point3<T> ViewPoint();
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Matrix44<T> proj;
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Matrix44<T> model;
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Matrix44<T> matrix;
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Matrix44<T> inverse;
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int viewport[4];
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};
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template <class T> void Camera<T>::GetView() {
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glGetDoublev(GL_PROJECTION_MATRIX, (double *)&proj);
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glGetDoublev(GL_MODELVIEW_MATRIX, (double *)&model);
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glGetIntegerv(GL_VIEWPORT, viewport);
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proj.Transpose();
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model.Transpose();
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matrix.Import(proj * model);
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inverse = matrix;
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Invert(inverse);
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}
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template <class T> Point3<T> Camera<T>::ViewPoint() {
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return inverse * Point3<T>(0, 0, 0);
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/*Matrix44d model(model_matrix);
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model.Invert();
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Point3d view = model * Point3d(0, 0, 0);
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return Point3<T>(view[0], view[1], view[2]); */
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}
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template <class T> Point3<T> Camera<T>::Project(const Point3<T> &p) const {
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Point3<T> r;
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r = matrix * p;
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r[0] = (r[0]+1)*(viewport[2]/2.0)+viewport[0];
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r[1] =(r[1]+1)*(viewport[3]/2.0)+viewport[1];
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return r;
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/*double r[3];
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gluProject(p[0], p[1], p[2], model_matrix, proj_matrix, viewport, &r[0], &r[1], &r[2]);
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return Point3<T>((T)r[0], (T)r[1], (T)r[2]);*/
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}
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template <class T> Point3<T> Camera<T>::UnProject(const Point3<T> &p) const {
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Point3<T> s;
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s[0] = (p[0]- viewport[0])/ (viewport[2]/2.0) - 1;
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s[1] = (p[1]- viewport[1])/ (viewport[3]/2.0) - 1;
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s[2] = p[2];
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s[1] = -s[1]; // pezza aggiunta per il tan2.... ?????????????
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s = inverse * s;
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return s;
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/*double r[3];
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gluUnProject(p[0], p[1], p[2], model_matrix, proj_matrix, viewport, &r[0], &r[1], &r[2]);
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return Point3<T>((T)r[0], (T)r[1], (T)r[2]);*/
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}
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}//namespace
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#endif
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#ifndef FRUSTUM_H
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#define FRUSTUM_H
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#include <wrap/gui/camera.h>
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#include <vcg/space/plane3.h>
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#include <vcg/space/line3.h>
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namespace vcg {
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template <class T> class Frustum: public Camera {
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public:
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void GetView();
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bool IsOutside(Point3<T> &point);
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bool IsOutside(Point3<T> &point, T radius);
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T Distance(Point3<T> &point, int plane);
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Point3<T> ViewPoint();
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protected:
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T resolution;
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Plane3<T> planes[6];
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Point3<T> view_point;
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};
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//Implementation
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template <class T> Point3<T> Frustum<T>::ViewPoint() {
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return view_point;
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}
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template <class T> bool Frustum<T>::IsOutside(Point3<T> &point) {
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Point3<T> r = Project(point);
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if(r[0] < viewport[0] || r[0] > viewport[0]+viewport[2] ||
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r[1] < viewport[1] || r[1] > viewport[1]+viewport[3])
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return true;
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return false;
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}
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template <class T> bool Frustum<T>::IsOutside(Point3<T> &point, T radius) {
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for(int i = 0; i < 4; i++) {
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T dist = Distance(point, i);
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if(dist < -radius)
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return true;
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}
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return false;
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}
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template <class T> T Frustum<T>::Distance(Point3<T> &point, int plane) {
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return Distance<T>(point, planes[plane]);
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}
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template <class T> void Frustum<T>::GetView() {
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Camera::GetView();
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Point3d NE, SE, SW, NW, ne, se, sw, nw;
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int t = viewport[1] + viewport[3];
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int b = viewport[1];
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int r = viewport[0] + viewport[2];
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int l = viewport[0];
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Point3d NE, SE, SW, NW, ne, se, sw, nw;
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gluUnProject(l, b, 0, model_matrix, proj_matrix, viewport, &nw[0], &nw[1], &nw[2]);
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gluUnProject(l, t, 0, model_matrix, proj_matrix, viewport, &sw[0], &sw[1], &sw[2]);
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gluUnProject(r, b, 0, model_matrix, proj_matrix, viewport, &ne[0], &ne[1], &ne[2]);
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gluUnProject(r, t, 0, model_matrix, proj_matrix, viewport, &se[0], &se[1], &se[2]);
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gluUnProject(l, b, 1, model_matrix, proj_matrix, viewport, &NW[0], &NW[1], &NW[2]);
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gluUnProject(l, t, 1, model_matrix, proj_matrix, viewport, &SW[0], &SW[1], &SW[2]);
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gluUnProject(r, b, 1, model_matrix, proj_matrix, viewport, &NE[0], &NE[1], &NE[2]);
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gluUnProject(r, t, 1, model_matrix, proj_matrix, viewport, &SE[0], &SE[1], &SE[2]);
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view_point = Camera::ViewPoint();
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planes[0].init(view_point, Point3<T>().Import(nw), Point3<T>().Import(ne));
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planes[1].init(view_point, Point3<T>().Import(ne), Point3<T>().Import(se));
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planes[2].init(view_point, Point3<T>().Import(se), Point3<T>().Import(sw));
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planes[3].init(view_point, Point3<T>().Import(sw), Point3<T>().Import(nw));
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planes[4].init(Point3<T>().Import(se), Point3<T>().Import(sw), Point3<T>().Import(nw));
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planes[5].init(Point3<T>().Import(SW), Point3<T>().Import(SE), Point3<T>().Import(NE));
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for(int i = 0; i < 6; i++)
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planes[i].Normalize();
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//calcoliamo la risoluzione: dimenzione di un pixel a distanza 1 dal view_point
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resolution = (T)((ne + NE) - (nw + NW)).Norm() /( viewport[2] * ((ne + NE) - (nw + NW)).Norm());
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}
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}//namespace
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#endif
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#ifndef TRACKBALL_H
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#define TRACKBALL_H
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#include <vcg/math/similar.h>
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namespace vcg {
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class Trackball {
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public:
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Similarf track;
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Similarf local;
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Trackball();
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void SetIdentity();
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void SetPosition(const Similarf &local, int millisec = 0);
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//operating
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void GetView();
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void Apply();
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void Draw();
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void Reset();
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//interface
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void MouseDown(int x, int y, Button button);
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void MouseMove(int x, int y);
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void MouseUp(int x, int y, Button button);
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void MouseWheel(Button notch);
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void ButtonUp(Button button);
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void ButtonDown(Button button);
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//spinning interface
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void SetSpinnable(bool on);
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bool IsSpinnable();
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bool SetSpinning(Quaternionf &spin);
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void StopSpinning();
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bool IsSpinning();
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//interfaccia navigation:
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void Back();
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void Forward();
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void Home();
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void HistorySize(int lenght);
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enum { LOCAL, VIEW, SCREEN };
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enum {
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ROTATE = 0, ROTATE_G = 1, //really makes sense only in VIEW system
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ROTATE_X = 2, ROTATE_Y = 3, ROTATE_Z = 4, // Axis Constrained Rotation
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DRAG_X = 5, DRAG_Y = 6, DRAG_Z = 7, // Drag constrained to an axis (trackball axis)
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DRAG_XY = 8, DRAG_YZ = 9, DRAG_XZ = 10, // Drag constrained to a plane
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SCALE = 11, //scale respect to center of trackball
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NONE = 12 //disable trackball
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};
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enum Button { BUTTON_LEFT = 1, BUTTON_MIDDLE = 2, BUTTON_RIGHT = 4, WHEEL = 8,
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KEY_SHIFT = 16, KEY_CTRL = 32, KEY_ALT = 64, HANDLE = 128 };
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protected:
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Camera camera;
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TrackMode *current;
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Similarf &last();
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int last_x, last_y;
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bool dragging;
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int button_mask;
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Quaternionf spin;
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bool spinnable;
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bool spinning;
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std::list<Similarf> history;
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};
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}//namespace
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#endif
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#ifndef TRACKMODE_H
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#define TRACKMODE_H
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namespace vcg {
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class TrackMode {
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public:
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};
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class SphereMode: public TrackMode {
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public:
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};
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class GravityMode: public TrackMode {
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public:
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};
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class CylinderMode: public TrackMode {
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public:
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};
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class PlaneMode: public TrackMode {
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public:
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};
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class LineMode: public TrackMode {
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public:
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};
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class ScaleMode: public TrackMode {
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public:
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};
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}//namespace
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#endif
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