Ajout du module de transformations

1 files changed, 112 insertions, 0 deletions

diff --git a/generic/Transfo.h b/generic/Transfo.h
new file mode 100644
index 0000000..46ce803
--- /dev/null
+++ b/generic/Transfo.h
@@ -0,0 +1,112 @@
+/*
+ * Transfo.h -- Header for common geometric routines.
+ *
+ * Authors		: Patrick Lecoanet.
+ * Creation date	:
+ *
+ * $Id$
+ */
+
+/*
+ *  Copyright (c) 1993 - 1999 CENA, Patrick Lecoanet --
+ *
+ * This code is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This code 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this code; if not, write to the Free
+ * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+
+#ifndef _Transfo_h
+#define _Transfo_h
+
+
+#include "Types.h"
+
+#include <math.h>
+#include <limits.h>
+
+
+/*
+ * First subscript is matrix row, second is matrix column.
+ * So a[0][1] is upper right corner of matrix a and a[2][0]
+ * is lower left corner.
+ */
+typedef struct  _RadarTransfo {
+  RadarReal	_[3][2];
+} RadarTransfo;
+
+
+RadarTransfo *
+RadarTransfoNew(void);
+RadarTransfo *
+RadarTransfoDuplicate(RadarTransfo *t);
+void
+RadarTransfoFree(RadarTransfo	*t);
+void
+RadarPrintTransfo(RadarTransfo	*t);
+void
+RadarTransfoSetIdentity(RadarTransfo	*t);
+RadarBool
+RadarTransfoIsIdentity(RadarTransfo	*t);
+RadarTransfo *
+RadarTransfoCompose(RadarTransfo	*res,
+		    RadarTransfo	*t1,
+		    RadarTransfo	*t2);
+RadarTransfo *
+RadarTransfoInvert(RadarTransfo	*t,
+		   RadarTransfo	*inv);
+void
+RadarTransfoDecompose(RadarTransfo	*t,
+		      RadarPoint	*scale,
+		      RadarPoint	*trans,
+		      RadarReal		*rotation,
+		      RadarReal		*shearxy);
+RadarBool
+RadarTransfoEqual(RadarTransfo	*t1,
+		  RadarTransfo	*t2,
+		  RadarBool	include_translation);
+RadarBool
+RadarTransfoHasShear(RadarTransfo	*t);
+RadarBool
+RadarTransfoIsTranslation(RadarTransfo	*t);
+RadarPoint *
+RadarTransformPoint(RadarTransfo	*t,
+		    RadarPoint		*p,
+		    RadarPoint		*xp);
+void
+RadarTransformPoints(RadarTransfo	*t,
+		     RadarPoint		*p,
+		     RadarPoint		*xp,
+		     int		num);
+RadarTransfo *
+RadarTranslate(RadarTransfo	*t,
+	       RadarReal	delta_x,
+	       RadarReal	delta_y);
+RadarTransfo *
+RadarSetTranslation(RadarTransfo	*t,
+		    RadarReal		delta_x,
+		    RadarReal		delta_y);
+RadarTransfo *
+RadarScale(RadarTransfo	*t,
+	   RadarReal	scale_x,
+	   RadarReal	scale_y);
+RadarTransfo *
+RadarRotateRad(RadarTransfo	*t,
+	       RadarReal	angle);
+RadarTransfo *
+RadarRotateDeg(RadarTransfo	*t,
+	       RadarReal	angle);
+
+
+#endif	/* _Transfo_h */