1 files changed, 63 insertions, 0 deletions
diff --git a/src/graph/view2D/pot2d.c b/src/graph/view2D/pot2d.c
new file mode 100644
index 00000000..95443a4d
--- /dev/null
+++ b/src/graph/view2D/pot2d.c
@@ -0,0 +1,63 @@
+/*
+  Copyright (C) 1991-2002, The Numerical ALgorithms Group Ltd.
+  All rights reserved.
+  Copyright (C) 2007-2008, Gabriel Dos Reis.
+  All rights reserved.
+
+  Redistribution and use in source and binary forms, with or without
+  modification, are permitted provided that the following conditions are
+  met:
+
+      - Redistributions of source code must retain the above copyright
+        notice, this list of conditions and the following disclaimer.
+
+      - Redistributions in binary form must reproduce the above copyright
+        notice, this list of conditions and the following disclaimer in
+        the documentation and/or other materials provided with the
+        distribution.
+
+      - Neither the name of The Numerical ALgorithms Group Ltd. nor the
+        names of its contributors may be used to endorse or promote products
+        derived from this software without specific prior written permission.
+
+  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
+  IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+  TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+  PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
+  OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+  LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#define _POT2D_C
+#include "axiom-c-macros.h"
+
+#include "header2.h"
+
+#include "all_2d.H1"
+
+mouseCoord 
+#ifdef _NO_PROTO
+getPotValue(eX,eY,xH,yH)
+  short eX,eY,xH,yH;
+#else
+getPotValue(short eX,short eY,short xH,short yH)
+#endif
+{
+
+  mouseCoord whereMouse;
+  float x,y;
+
+  x = (float)eX/xH - 1;
+  y = -((float)eY/yH -1);
+            /* make non-linear potentiometer */
+  whereMouse.x = x*x*x; 
+  whereMouse.y = y*y*y; 
+
+  return(whereMouse);
+
+} /* getPotValue() */