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Polygon Mesh Processing Library
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Polygon Mesh Processing Library
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A simple GLFW viewer with trackball user interface. More...
#include <pmp/viewers/trackball_viewer.h>
Inherits Window.
Inherited by MeshViewer.
Public Member Functions | |
| TrackballViewer (const char *title, int width, int height, bool showgui=true) | |
| constructor | |
| ~TrackballViewer () override | |
| destructor | |
| void | set_scene (const vec3 ¢er, float radius) |
| define the center and radius of the scene/ used for trackball rotation | |
| void | view_all () |
| adjust camera such that the whole scene (defined by set_scene()) is visible | |
| Public Member Functions inherited from Window | |
| Window (const char *title, int width, int height, bool showgui=true) | |
| constructor | |
| virtual | ~Window () |
| destructor | |
| int | run () |
| main window loop | |
Protected Member Functions | |
| void | display () override |
| this function is called when the scene has to be rendered. | |
| void | keyboard (int key, int code, int action, int mods) override |
| this function handles keyboard events | |
| void | mouse (int button, int action, int mods) override |
| this function handles mouse button events | |
| void | motion (double xpos, double ypos) override |
| this function handles mouse motion (passive/active position) | |
| void | scroll (double xoffset, double yoffset) override |
| this function handles mouse scroll events | |
| void | clear_draw_modes () |
| reset the list of draw modes | |
| unsigned int | add_draw_mode (const std::string &drawMode) |
| add a draw mode | |
| void | set_draw_mode (const std::string &drawMode) |
| activate a draw mode | |
| virtual void | init () |
| initialize all OpenGL states | |
| virtual void | draw (const std::string &drawMode)=0 |
| this function is responsible for rendering the scene | |
| void | rotation (int x, int y) |
| turn a mouse event into a rotation around the scene center. calls rotate(). | |
| void | translation (int x, int y) |
| turn a mouse event into a translation in the view plane. calls translate(). | |
| void | zoom (int x, int y) |
| turn a mouse event into a zoom, i.e., translation in z-direction. calls translate(). | |
| bool | pick (vec3 &result) |
| get 3D position under the mouse cursor | |
| bool | pick (int x, int y, vec3 &result) |
| get 3D position of 2D position (x,y) | |
| void | fly_to (int x, int y) |
| fly toward the position Distributed under the mouse cursor and set rotation center to it | |
| void | translate (const vec3 &trans) |
| translate the scene and update modelview matrix | |
| void | rotate (const vec3 &axis, float angle) |
| rotate the scene (around its center) and update modelview matrix | |
| bool | map_to_sphere (const ivec2 &point, vec3 &result) |
| virtual trackball: map 2D screen point to unit sphere. used by rotate(). | |
| double | measure_fps () |
| measure performance, returns frames/second | |
| Protected Member Functions inherited from Window | |
| virtual void | character (unsigned int) |
| this function handles unicode character events | |
| virtual void | resize (int, int) |
| this function is called if the window is resized | |
| virtual void | drop (int, const char **) |
| this function is called if a file is dropped onto the window | |
| virtual void | process_imgui () |
| this function renders the ImGUI elements and handles their events | |
| virtual void | do_processing () |
| this function is called just before rendering | |
| void | init_imgui () |
| setup ImGUI user interface | |
| void | scale_imgui (float scale) |
| scale ImGUI elements and font | |
| virtual void | draw_imgui () |
| draw ImGUI frame | |
| bool | show_imgui () const |
| is ImGUI visible or hidden? | |
| void | show_imgui (bool b) |
| show or hide ImGUI | |
| void | clear_help_items () |
| clear help items | |
| void | add_help_item (std::string key, std::string description, int position=-1) |
| add key binding (or general action description) | |
| bool | show_help () |
| is help dialog visible/hidden? | |
| void | show_help (bool b) |
| show or hide help dialog | |
| void | draw_help_dialog () |
| render help dialog | |
| void | screenshot () |
| take a screenshot, save it to title-n.png using the window title and an incremented number n. | |
| int | width () const |
| width of window | |
| int | height () const |
| height of window | |
| float | high_dpi_scaling () const |
| highDPI scaling | |
| float | imgui_scaling () const |
| imgui scaling | |
| void | cursor_pos (double &x, double &y) const |
| get position of mouse cursor | |
| bool | left_mouse_pressed () const |
| is left mouse button pressed down? | |
| bool | right_mouse_pressed () const |
| is right mouse button pressed down? | |
| bool | middle_mouse_pressed () const |
| is middle mouse button pressed down? | |
| bool | ctrl_pressed () const |
| is CTRL modifier key pressed down? | |
| bool | alt_pressed () const |
| is ALT modifier key pressed down? | |
| bool | shift_pressed () const |
| is SHIFT modifier key pressed down? | |
| bool | super_pressed () const |
| is SUPER modifier key pressed down? | |
Protected Attributes | |
| unsigned int | draw_mode_ |
| draw modes | |
| vec3 | center_ |
| scene position and dimension | |
| float | near_ |
| projection parameters | |
| mat4 | projection_matrix_ |
| OpenGL matrices. | |
| ivec2 | prev_point_2d_ |
| trackball helpers | |
A simple GLFW viewer with trackball user interface.