X-Git-Url: http://git.kpe.io/?a=blobdiff_plain;f=include%2Fkmath.h;h=3b4a36ad30435d0fbbef347050177971979da277;hb=331b5c344271387790f735540510e2a07e4e42a7;hp=a95c3c3c760e144f2155d5ad89d445647ff3aeec;hpb=0fdfdd911d663c031caa231b5ce7edf81642294f;p=ctsim.git

diff --git a/include/kmath.h b/include/kmath.h
index a95c3c3..3b4a36a 100644
--- a/include/kmath.h
+++ b/include/kmath.h
@@ -1,16 +1,50 @@
+/*****************************************************************************
+**  This is part of the CTSim program
+**  Copyright (C) 1983-2000 Kevin Rosenberg
+**
+**  $Id: kmath.h,v 1.9 2000/05/08 20:00:48 kevin Exp $
+**  $Log: kmath.h,v $
+**  Revision 1.9  2000/05/08 20:00:48  kevin
+**  ANSI C changes
+**
+**  Revision 1.8  2000/05/07 12:46:19  kevin
+**  made c++ compatible
+**
+**  Revision 1.7  2000/05/04 18:16:34  kevin
+**  renamed filter definitions
+**
+**  Revision 1.6  2000/05/02 20:00:25  kevin
+**  *** empty log message ***
+**
+**  Revision 1.5  2000/05/02 15:31:39  kevin
+**  code cleaning
+**
+**  Revision 1.4  2000/04/30 19:17:35  kevin
+**  Set up include files for conditional INTERACTIVE_GRAPHICS
+**
+**  Revision 1.3  2000/04/28 14:14:16  kevin
+**  *** empty log message ***
+**
+**
+**  This program is free software; you can redistribute it and/or modify
+**  it under the terms of the GNU General Public License (version 2) as
+**  published by the Free Software Foundation.
+**
+**  This program is distributed in the hope that it will be useful,
+**  but WITHOUT ANY WARRANTY; without even the implied warranty of
+**  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+**  GNU General Public License for more details.
+**
+**  You should have received a copy of the GNU General Public License
+**  along with this program; if not, write to the Free Software
+**  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+******************************************************************************/
 /******************************************************************************
  *
- * FILE IDENTIFICATION
- *
- *	File Name:	NUMR.H
- *	Author:		Kevin Rosenberg
- *	Purpose:	Header file containing definitions for numerical app's
+ * PURPOSE
+ *	Header file containing definitions for numerical app's
  *	Date Started:	Nov 84
  *
- * DESCRIPTION
- *
- * MODIFICATION LOG
- *
  *****************************************************************************/
 
 #ifndef _H_kmath
@@ -19,6 +53,10 @@
 #include <stdio.h>
 #include <math.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
 #define PI      3.14159265358979323846
 #define HALFPI  1.57079632679489661923	/* PI divided by 2 */
 #define QUARTPI 0.78539816339744830962	/* PI divided by 4 */
@@ -62,6 +100,9 @@ typedef double   *DMTX_1D;
 typedef DMTX_1D  *DMTX_2D;
 typedef DMTX_2D  *DMTX_3D;
 
+typedef double GRFMTX_2D[3][3];
+typedef double GRFMTX_3D[4][4];
+
 union elem_val_un {	/* holds an element value */
 	char	  c;
 	int	  i;
@@ -138,27 +179,58 @@ typedef struct matrix_st *MTXP;
 	       )))))
 */
 
+/* clip.c */
+int clip_rect(double *x1, double *y1, double *x2, double *y2, const double rect[4]);
+int clip_segment(double *x1, double *y1, double *x2, double *y2, const double u, const double v);
+int clip_sector(double *x1, double *y1, double *x2, double *y2, const double u, const double v);
+int clip_circle(double *x1, double *y1, double *x2, double *y2, const double cx, const double cy, const double radius, double t1, double t2);
+int clip_triangle(double *x1, double *y1, double *x2, double *y2, const double u, const double v, const int clip_xaxis);
 
 /* lnearest.c */
 long int lnearest(double x);
+
+/* minmax.c */
+double fmax(const double a, const double b);
+void minmax_dvector(const double array[], const int pts, double *xmin, double *xmax);
+
 /* mtx_disp.c */
 void mtx_show(const MTX *mtx);
 void mtx_prt(const MTX *mtx, FILE *fp);
 int mtx_prt_elem(const MTX *mtx, FILE *fp, unsigned int x, unsigned int y, unsigned int z);
+
 /* mtx_elem.c */
 int mtx_get_elem(const MTX *mtx, MTX_ELEM_VAL *me, const int x, const int y, const int z);
 int mtx_put_elem(MTX *mtx, const MTX_ELEM_VAL *me, unsigned int x, unsigned int y, unsigned int z);
+
 /* mtx_inp.c */
 int mtx_inp_elem(const char *prompt, MTX_ELEM_VAL *mev, const int dtype);
+
 /* mtx_main.c */
 MTX *mtx_init(const unsigned int order, const unsigned int elem_type, const unsigned int nx, const unsigned int ny, const unsigned int nz);
 MTX *mtx_clr(MTX *mtx);
 int mtx_free(MTX *mtx);
 int mtx_elem_size(const int dt);
 int mtx_check(const MTX *mtx, const char *func_name);
+
 /* norm_ang.c */
 double norm_ang(double theta);
+
 /* simpson.c */
 double simpson(const double xmin, const double xmax, const double *y, const int np);
 
+/* xform.c */
+void indent_mtx2(GRFMTX_2D m);
+void xlat_mtx2(GRFMTX_2D m, const double x, const double y);
+void scale_mtx2(GRFMTX_2D m, const double sx, const double sy);
+void rot_mtx2(GRFMTX_2D m, const double theta);
+void mult_mtx2(GRFMTX_2D m1, GRFMTX_2D m2, GRFMTX_2D result);
+void xform_mtx2(GRFMTX_2D m, double *x, double *y);
+void rotate2d(double x[], double y[], int pts, double angle);
+void xlat2d(double x[], double y[], int pts, double xoffset, double yoffset);
+void scale2d(double x[], double y[], int pts, double xfact, double yfact);
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
 #endif