OpenSees » SRC » renderer

Scan.h

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00001 /* ****************************************************************** **
00002 **    OpenSees - Open System for Earthquake Engineering Simulation    **
00003 **          Pacific Earthquake Engineering Research Center            **
00004 **                                                                    **
00005 **                                                                    **
00006 ** (C) Copyright 1999, The Regents of the University of California    **
00007 ** All Rights Reserved.                                               **
00008 **                                                                    **
00009 ** Commercial use of this program without express permission of the   **
00010 ** University of California, Berkeley, is strictly prohibited.  See   **
00011 ** file 'COPYRIGHT'  in main directory for information on usage and   **
00012 ** redistribution,  and for a DISCLAIMER OF ALL WARRANTIES.           **
00013 **                                                                    **
00014 ** Developed by:                                                      **
00015 **   Frank McKenna (fmckenna@ce.berkeley.edu)                         **
00016 **   Gregory L. Fenves (fenves@ce.berkeley.edu)                       **
00017 **   Filip C. Filippou (filippou@ce.berkeley.edu)                     **
00018 **                                                                    **
00019 ** ****************************************************************** */
00020                                                                         
00021 // $Revision: 1.1.1.1 $
00022 // $Date: 2000/09/15 08:23:27 $
00023 // $Source: /usr/local/cvs/OpenSees/SRC/renderer/Scan.h,v $
00024                                                                         
00025                                                                         
00026 #ifndef Scan_H
00027 #define Scan_H
00028 
00029 #include "db.H"
00030 class Device;
00031 class Projection;
00032 
00033 // This module transforms a list of polygons in device coordinates
00034 // into pixels that represent these polygons.
00035 
00036 #define EVEN_ODD 1
00037 #define WINDING  2
00038 
00039 class ScanLineConverter
00040 {
00041  public:
00042   ScanLineConverter();
00043   ~ScanLineConverter();  
00044   
00045   int update(void);
00046   void scanLine(FACE &FACE); 
00047   void scanPolygon(FACE &FACE);   
00048   void setFillMode(int mode);
00049   void setScanMode(int mode);  
00050 
00051   void setDevice(Device &theDevice);
00052   void setProjection(Projection &theProjection);  
00053   
00054  private:
00055   int width;
00056   int length;
00057   int fillMode;      // wire == 1, otherwise fill 
00058   int scanMode;      // WINDING or EVEN_ODD
00059   float *zBuffer;
00060   int sizeBuffer;
00061   
00062   void DrawWire(FACE &face);         // Draws a single face in wireframe 
00063   void DrawFill(FACE &face);         // Draws a face using fill
00064       
00065   Device *theDevice;
00066   Projection *theProjection;  
00067 };
00068 
00069 #endif
00070 
00071

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