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diff --git a/app/bin/ccurve.h b/app/bin/ccurve.h
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+/*
+ * $Header: /home/dmarkle/xtrkcad-fork-cvs/xtrkcad/app/bin/ccurve.h,v 1.1 2005-12-07 15:47:36 rc-flyer Exp $
+ */
+
+/* XTrkCad - Model Railroad CAD
+ * Copyright (C) 2005 Dave Bullis
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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.
+ */
+
+
+typedef struct {
+ curveType_e type;
+ coOrd curvePos;
+ coOrd pos1;
+ DIST_T curveRadius;
+ ANGLE_T a0, a1;
+ } curveData_t;
+
+#define crvCmdFromEP1 (0)
+#define crvCmdFromTangent (1)
+#define crvCmdFromCenter (2)
+#define crvCmdFromChord (3)
+
+#define circleCmdFixedRadius (0)
+#define circleCmdFromTangent (1)
+#define circleCmdFromCenter (2)
+
+typedef void (*curveMessageProc)( char *, ... );
+STATUS_T CreateCurve( wAction_t, coOrd, BOOL_T, wDrawColor, DIST_T, long, curveMessageProc );
+int IsCurveCircle( track_p );
+void PlotCurve( long, coOrd, coOrd, coOrd, curveData_t *, BOOL_T );
+track_p NewCurvedTrack( coOrd, DIST_T, ANGLE_T, ANGLE_T, long );
+DIST_T CurveDescriptionDistance( coOrd, track_p );
+STATUS_T CurveDescriptionMove( track_p, wAction_t, coOrd );
+BOOL_T GetCurveMiddle( track_p, coOrd * );