/**?3DGPL?*************************************************\
?*?（）?????????????????????????????????????????????????????*
?*?2D?line?and?polygon?clipping.??????????????????????????*
?*????????????????????????????????????????????????????????*
?*?Defines:???????????????????????????????????????????????*
?*??C_init_clipping??????????Setting?bounds;??????????????*
?*??C_get_bounds?????????????Clipping?window;?????????????*
?*??C_set_bounds?????????????Impose?another?condition;????*
?*????????????????????????????????????????????????????????*
?*??C_line_x_clipping????????Clipping?a?line?horizontally;*
?*??C_line_y_clipping????????Clipping?a?line?vertically;??*
?*????????????????????????????????????????????????????????*
?*??C_polygon_x_clipping?????Horizontal?polygon?cliping.??*
?*????????????????????????????????????????????????????????*
?*?（c）?1995-98?Sergei?Savchenko?（savs@cs.mcgill.ca）??????*
\**********************************************************/

#include?“RayTracing.h“???????????/*?hardware?specific?stuff?*/
#include?“Clipper.h“?????????????/*?2D?macros?*/

int?C_2D_clipping;??????????????????????????/*?type?of?performed?clipping?*/
int?C_x_clipping_min=C_X_CLIPPING_MIN;??????/*?clipping?bounds?*/
int?C_x_clipping_max=C_X_CLIPPING_MAX;??????/*?default?values?*/
int?C_y_clipping_min=C_Y_CLIPPING_MIN;
int?C_y_clipping_max=C_Y_CLIPPING_MAX;

/**********************************************************\
?*?Setting?bounds?for?2D?clipping.????????????????????????*
?*????????????????????????????????????????????????????????*
?*?SETS:?C_x_clipping_min...C_y_clipping_max????????????*
?*?-----??????????????????????????????????????????????????*
\**********************************************************/

void?C_init_clipping（int?minxint?minyint?maxxint?maxy）
{
?C_x_clipping_min=minx;?????????????????????/*?no?error?checking...?*/
?C_y_clipping_min=miny;
?C_x_clipping_max=maxx;
?C_y_clipping_max=maxy;
}

/**********************************************************\
?*?Getting?current?state?of?bounds?for?2D?clipping.???????*
\**********************************************************/

void?C_get_bounds（int?*minxint?*minyint?*maxxint?*maxy）
{
?*minx=C_x_clipping_min;
?*miny=C_y_clipping_min;
?*maxx=C_x_clipping_max;
?*maxy=C_y_clipping_max;
}

/**********************************************************\
?*?Imposing?extra?set?of?bounds?for?2D?clipping.??????????*
?*????????????????????????????????????????????????????????*
?*?RETURNS:?0?when?no?clipping?window?exist;??????????????*
?*?--------?1?when?it?does?exist.?????????????????????????*
?*????????????????????????????????????????????????????????*
?*???+--------+??????merging?two?sets?of?conditions???????*
?*???|???+-------+???old?and?new.?Getting?an?intersection?*
?*???|???|////|??|???where?both?old?and?new?conditions????*
?*???+---|----+??|???are?valid.???????????????????????????*
?*???????+-------+??????????????????????????????????????

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件??????11031??2004-04-15?12:10??RayTracing\Clipp2D.cpp

?????文件??????11311??2004-04-15?12:13??RayTracing\Clipp3D.cpp

?????文件???????2132??2004-04-15?12:07??RayTracing\Clipper.h

?????文件???????3856??2004-04-11?15:00??RayTracing\Colour.cpp

?????文件???????7296??2004-04-11?15:31??RayTracing\Colour.h

?????文件??????32363??2004-04-15?12:02??RayTracing\data.cpp

?????文件????????759??2004-04-11?14:19??RayTracing\data.h

?????文件??????27632??2010-12-13?13:33??RayTracing\Debug\BuildLog.htm

?????文件??????27950??2010-12-13?13:33??RayTracing\Debug\Clipp2D.obj

?????文件??????????0??2010-12-13?13:33??RayTracing\Debug\Clipp2D.sbr

?????文件??????26835??2010-12-13?13:33??RayTracing\Debug\Clipp3D.obj

?????文件??????????0??2010-12-13?13:33??RayTracing\Debug\Clipp3D.sbr

?????文件??????20650??2010-12-13?13:33??RayTracing\Debug\Colour.obj

?????文件??????????0??2010-12-13?13:33??RayTracing\Debug\Colour.sbr

?????文件??????49324??2010-12-13?13:33??RayTracing\Debug\data.obj

?????文件??????????0??2010-12-13?13:33??RayTracing\Debug\data.sbr

?????文件??????35521??2010-12-13?13:33??RayTracing\Debug\Engbase.obj

?????文件??????????0??2010-12-13?13:33??RayTracing\Debug\Engbase.sbr

?????文件??????40515??2010-12-13?13:33??RayTracing\Debug\EngBcub.obj

?????文件??????????0??2010-12-13?13:33??RayTracing\Debug\EngBcub.sbr

?????文件??????39109??2010-12-13?13:33??RayTracing\Debug\EngPoly.obj

?????文件??????????0??2010-12-13?13:33??RayTracing\Debug\EngPoly.sbr

?????文件???????1208??2004-04-15?12:15??RayTracing\Debug\Graphics.obj

?????文件??????????0??2004-04-15?12:15??RayTracing\Debug\Graphics.sbr

?????文件??????25271??2010-12-13?13:33??RayTracing\Debug\Graphicsbase.obj

?????文件??????????0??2010-12-13?13:33??RayTracing\Debug\Graphicsbase.sbr

?????文件??????37636??2010-12-13?13:33??RayTracing\Debug\GraphicsPoly.obj

?????文件??????????0??2010-12-13?13:33??RayTracing\Debug\GraphicsPoly.sbr

?????文件??????20064??2010-12-13?13:33??RayTracing\Debug\GraphicsText.obj

?????文件??????????0??2010-12-13?13:33??RayTracing\Debug\GraphicsText.sbr

............此處省略78個文件信息