Added GIFPlot example

git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk/SWIG@219 626c5289-ae23-0410-ae9c-e8d60b6d4f22

Examples/GIFPlot/Python/full/Makefile

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+TOP        = ../../..
+SWIG       = $(TOP)/../swig
+SWIGOPT    = -I../../Include
+SRCS       = 
+TARGET     = gifplot
+INTERFACE  = gifplot.i
+LIBS       = -L../.. -lgifplot
+INCLUDE    = -I../../Include
+
+all::
+	$(MAKE) -f $(TOP)/Makefile SRCS='$(SRCS)' SWIG='$(SWIG)' \
+	INCLUDE='$(INCLUDE)' LIBS='$(LIBS)' SWIGOPT='$(SWIGOPT)' \
+	TARGET='$(TARGET)' INTERFACE='$(INTERFACE)' python
+
+static::
+	$(MAKE) -f $(TOP)/Makefile SRCS='$(SRCS)' SWIG='$(SWIG)' \
+	INCLUDE='$(INCLUDE)' LIBS='$(LIBS)' SWIGOPT='$(SWIGOPT)' \
+	TARGET='mypython' INTERFACE='$(INTERFACE)' python_static
+
+clean::
+	rm -f *_wrap* *.o *~ *.so mypython *.pyc .~* core *.gif
+
+

Examples/GIFPlot/Python/full/README

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+This example runs the entire gifplot.h header file through SWIG without
+any changes.  The script 'runme.py' does something a little more 
+interesting.   You'll have to go look at the header file to get a complete
+listing of the functions.
+
+
+
+

Examples/GIFPlot/Python/full/gifplot.i

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+/* Oh what the heck, let's just grab the whole darn header file
+   and see what happens. */
+
+%module gifplot
+%{
+
+/* Note: You still need this part because the %include directive
+   merely causes SWIG to interpret the contents of a file.  It doesn't
+   include the right include headers for the resulting C code */
+
+#include "gifplot.h"
+
+%}
+
+%include gifplot.h

Examples/GIFPlot/Python/full/runme.py

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+# Plot a 3D function
+from gifplot import *
+from math import *
+
+# Here is the function to plot
+def func(x,y):
+	return 5*cos(2*sqrt(x*x+y*y))*exp(-0.3*sqrt(x*x+y*y))
+
+# Here are some plotting parameters
+xmin = -5.0
+xmax =  5.0
+ymin = -5.0
+ymax =  5.0
+zmin = -5.0
+zmax =  5.0
+
+# Grid resolution
+nxpoints =  60
+nypoints =  60
+
+cmap  = new_ColorMap("cmap")
+frame = new_FrameBuffer(500,500)
+FrameBuffer_clear(frame,BLACK)
+
+p3    = new_Plot3D(frame,xmin,ymin,zmin,xmax,ymax,zmax)
+Plot3D_lookat(p3,2*max([xmax-xmin,ymax-ymin,zmax-zmin]))
+Plot3D_autoperspective(p3,40)
+Plot3D_rotu(p3,60)
+Plot3D_rotr(p3,30)
+Plot3D_rotd(p3,10)
+
+def drawsolid():
+	Plot3D_clear(p3,BLACK)
+	Plot3D_start(p3)
+	dx = 1.0*(xmax-xmin)/nxpoints
+	dy = 1.0*(ymax-ymin)/nypoints
+	cscale = 240.0/(zmax-zmin)
+	x = xmin
+	for i in xrange(0,nxpoints):
+		y = ymin
+		for j in xrange(0,nypoints):
+			z1 = func(x,y)
+			z2 = func(x+dx,y)
+			z3 = func(x+dx,y+dy)
+			z4 = func(x,y+dy)
+			c1 = cscale*(z1-zmin)
+			c2 = cscale*(z2-zmin)
+			c3 = cscale*(z3-zmin)
+			c4 = cscale*(z4-zmin)
+			c = (c1+c2+c3+c4)/4
+			if (c < 0) : c = 0
+			if c > 239 : c = 239
+			Plot3D_solidquad(p3,x,y,z1,x+dx,y,z2,x+dx,y+dy,z3,x,y+dy,z4,c+16)
+			y = y + dy		
+		x = x + dx
+
+print "Making a nice 3D plot..."
+drawsolid()
+
+FrameBuffer_writeGIF(frame,cmap,"image.gif")
+print "Wrote image.gif"
+

Examples/GIFPlot/Python/simple/Makefile

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+TOP        = ../../..
+SWIG       = $(TOP)/../swig
+SWIGOPT    = 
+SRCS       = 
+TARGET     = simple
+INTERFACE  = simple.i
+LIBS       = -L../.. -lgifplot
+INCLUDE    = -I../../Include
+
+all::
+	$(MAKE) -f $(TOP)/Makefile SRCS='$(SRCS)' SWIG='$(SWIG)' \
+	INCLUDE='$(INCLUDE)' LIBS='$(LIBS)' SWIGOPT='$(SWIGOPT)' \
+	TARGET='$(TARGET)' INTERFACE='$(INTERFACE)' python
+
+static::
+	$(MAKE) -f $(TOP)/Makefile SRCS='$(SRCS)' SWIG='$(SWIG)' \
+	INCLUDE='$(INCLUDE)' LIBS='$(LIBS)' SWIGOPT='$(SWIGOPT)' \
+	TARGET='mypython' INTERFACE='$(INTERFACE)' python_static
+
+clean::
+	rm -f *_wrap* *.o *~ *.so mypython *.pyc .~* core *.gif
+
+

Examples/GIFPlot/Python/simple/README

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+This is a very minimalistic example in which just a few functions
+and constants from library are wrapped and used to draw some simple
+shapes.  The script 'runme.py' runs the example.
+
+

Examples/GIFPlot/Python/simple/runme.py

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+# Draw some simple shapes
+print "Drawing some basic shapes"
+import simple
+
+cmap = simple.new_ColorMap()
+f    = simple.new_FrameBuffer(400,400)
+
+# Clear the picture
+simple.FrameBuffer_clear(f,simple.BLACK)
+
+# Make a red box
+simple.FrameBuffer_box(f,40,40,200,200,simple.RED)
+
+# Make a blue circle
+simple.FrameBuffer_circle(f,200,200,40,simple.BLUE)
+
+# Make green line
+simple.FrameBuffer_line(f,10,390,390,200, simple.GREEN)
+
+# Write an image out to disk
+
+simple.FrameBuffer_writeGIF(f,cmap,"image.gif")
+print "Wrote image.gif"
+
+simple.delete_FrameBuffer(f)
+simple.delete_ColorMap(cmap)
+

Examples/GIFPlot/Python/simple/simple.i

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+/* This example shows a very simple interface wrapping a few 
+   primitive declarations */
+
+%module simple
+%{
+#include "gifplot.h"
+%}
+
+typedef unsigned char Pixel;
+
+/* Here are a few useful functions */
+
+ColorMap    *new_ColorMap(char *filename = 0);
+void         delete_ColorMap(ColorMap *cmap);
+
+FrameBuffer *new_FrameBuffer(unsigned int width, unsigned int height);
+void         delete_FrameBuffer(FrameBuffer *frame);
+void         FrameBuffer_clear(FrameBuffer *frame, Pixel color);
+void         FrameBuffer_line(FrameBuffer *frame, int x1, int y1, int x2, int y2, Pixel color);
+void         FrameBuffer_box(FrameBuffer *frame, int x1, int y1, int x2, int y2, Pixel color);
+void         FrameBuffer_circle(FrameBuffer *frame, int x1, int y1, int radius, Pixel color);
+int          FrameBuffer_writeGIF(FrameBuffer *f, ColorMap *c, char *filename);
+
+/* And some useful constants */
+
+#define BLACK   0
+#define WHITE   1
+#define RED     2
+#define GREEN   3
+#define BLUE    4
+#define YELLOW  5
+#define CYAN    6
+#define MAGENTA 7
+
+
+
+
+