added java support in the GIFPlot example

some minor changes where needed in the interface file


git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk/SWIG@331 626c5289-ae23-0410-ae9c-e8d60b6d4f22

Examples/GIFPlot/Java/Makefile

@@ -0,0 +1,17 @@
+TOP        = ../..
+SWIG       = $(TOP)/../swig -shadow
+SWIGOPT    = -I../Include
+SRCS       = 
+TARGET     = libjgifplot
+INTERFACE  = gifplot.i
+LIBS       = -L.. -lgifplot -lm
+INCLUDE    = -I../Include
+
+all::
+	$(MAKE) -f $(TOP)/Makefile SRCS='$(SRCS)' SWIG='$(SWIG)' \
+	INCLUDE='$(INCLUDE)' LIBS='$(LIBS)' SWIGOPT='$(SWIGOPT)' \
+	TARGET='$(TARGET)' INTERFACE='$(INTERFACE)' java
+
+clean::
+	rm -f *_wrap* *.o *~ *.so .~* core *.gif *.class ColorMap.java FrameBuffer.java Plot2D.java Plot3D.java gifplot.java
+

Examples/GIFPlot/Java/README

@@ -0,0 +1,30 @@
+The gifplot example does not work straight out of the box, 
+I had to change ../Interface/gifplot.i slightly for java.
+
+a)
+The colors (e.g. BLACK) where defined as:
+
+	#define BLACK 0
+
+and the functions expect 'Pixel color' where Pixel is a unsigned char.
+#define constants contain no type information and are translated to integer
+constants. Because of that, you have to cast every Pixel to a byte in java.
+
+Changing the definition to:
+	const Pixel BLACK = 0;
+fixes this.
+
+b)
+The definitions:
+
+const PixMap *SQUARE = &PixMap_SQUARE;
+const PixMap *TRIANGLE = &PixMap_TRIANGLE;
+const PixMap *CROSS = &PixMap_CROSS;
+
+don't work.
+The wrapper code expects actual variables SQUARE, etc. and they are not
+defined in gifplot.h.
+
+c)
+In shadow mode the method ColorMap::default() clashes with the reserved name
+default.

Examples/GIFPlot/Java/gifplot.i

@@ -0,0 +1,273 @@
+//
+// Graphics module
+//
+%module gifplot
+%{
+#include "gifplot.h"
+%}
+
+/* Pixel is 8-bits */
+
+typedef unsigned char Pixel;
+typedef float Zvalue;
+
+%disabledoc
+
+/* ------------------------------------------------------------------------
+   ColorMap
+
+   Definition and methods for colormaps
+   ------------------------------------------------------------------------ */
+
+typedef struct ColorMap {
+  char          *name;
+
+//
+// %addmethods adds some C methods to this structure to make it
+// look like a C++ class in Python.
+// These are really named things like ColorMap_default, ColorMap_assign, etc...
+
+  %addmethods {
+    ColorMap(char *filename);
+    ~ColorMap();
+#ifdef SWIGJAVA
+    %name(make_default) void        default();
+#else
+    void        default();
+#endif
+    void        assign(int index,int r, int g, int b);
+    %name(__getitem__)  int getitem(int index);
+    %name(__setitem__)  void setitem(int index, int value);
+    int         write(char *filename);
+  }
+} ColorMap;
+
+/* Some default colors */
+
+#ifdef SWIGJAVA
+const Pixel BLACK   = 0;
+const Pixel WHITE   = 1;
+const Pixel RED     = 2;
+const Pixel GREEN   = 3;
+const Pixel BLUE    = 4;
+const Pixel YELLOW  = 5;
+const Pixel CYAN    = 6;
+const Pixel MAGENTA = 7;
+#else
+#define BLACK   0
+#define WHITE   1
+#define RED     2
+#define GREEN   3
+#define BLUE    4
+#define YELLOW  5
+#define CYAN    6
+#define MAGENTA 7
+#endif
+
+/*-------------------------------------------------------------------------
+  FrameBuffer
+
+  This structure defines a simple 8 bit framebuffer.  
+  ------------------------------------------------------------------------- */
+
+typedef struct FrameBuffer {
+  unsigned int    height;
+  unsigned int    width;
+  int             xmin;      /* These are used for clipping */
+  int             ymin;
+  int             xmax;
+  int             ymax;
+  %addmethods {
+    FrameBuffer(unsigned int width, unsigned int height);
+    ~FrameBuffer();
+    void resize(int width, int height);
+    void clear(Pixel color);
+    void plot(int x, int y, Pixel color);
+    void horizontal(int xmin, int xmax, int y, Pixel color);
+    void horizontalinterp(int xmin, int xmax, int y,  Pixel c1, Pixel c2);
+    void vertical(int ymin, int ymax, int x, Pixel color);
+    void box(int x1, int y1,  int x2, int y2, Pixel color);
+    void solidbox(int x1, int y1, int x2, int y2, Pixel color);
+    void interpbox(int x1, int y1, int x2, int y2, Pixel c1, Pixel c2, Pixel c3, Pixel c4);
+    void circle(int x1, int y1, int radius, Pixel color);
+    void solidcircle(int x1, int y1, int radius, Pixel color);
+    void line(int x1, int y1, int x2, int y2, Pixel color);
+    void setclip(int xmin, int ymin, int xmax, int ymax);
+    void noclip();
+    int  makeGIF(ColorMap *cmap, void *buffer, unsigned int maxsize);
+    void zresize(int width, int height);
+    void zclear();
+    void drawchar(int x, int y, int fgcolor, int bgcolor, char chr, int orientation);
+    void drawstring(int x, int y, int fgcolor, int bgcolor, char *text, int orientation);
+    void drawpixmap(PixMap *pm, int x, int y, int fgcolor, int bgcolor);
+    int  writeGIF(ColorMap *cmap, char *filename);	
+  }
+} FrameBuffer;
+
+#define  HORIZONTAL  1
+#define  VERTICAL    2
+
+/* --------------------------------------------------------------------------
+   PixMap
+
+   The equivalent of "bit-maps".
+   -------------------------------------------------------------------------- */
+
+/* PIXMAP methods */
+
+extern PixMap   *new_PixMap(int width, int height, int centerx, int centery);
+extern void      delete_PixMap(PixMap *pm);
+extern void      PixMap_set(PixMap *pm, int x, int y, int pix);
+
+#define   TRANSPARENT  0
+#define   FOREGROUND   1
+#define   BACKGROUND   2
+
+/* --------------------------------------------------------------------------
+   Plot2D
+
+   Definition and methods for 2D plots.
+   --------------------------------------------------------------------------- */
+
+typedef struct Plot2D {
+  FrameBuffer     *frame;
+  int             view_xmin;    /* Minimum coordinates of view region */
+  int             view_ymin;    
+  int             view_xmax;    /* Maximum coordinates of view region */
+  int             view_ymax;    
+  double          xmin;         /* Minimum coordinates of plot region */
+  double          ymin;
+  double          xmax;         /* Maximum coordinates of plot region */
+  double          ymax;
+  int             xscale;       /* Type of scaling (LINEAR, LOG, etc..) */
+  int             yscale;       
+  %addmethods {
+       Plot2D(FrameBuffer *frame,double xmin,double ymin,  double xmax, double ymax);
+       ~Plot2D();
+       Plot2D  *copy();
+       void     clear(Pixel c);
+       void     setview(int vxmin, int vymin, int vxmax, int vymax);
+       void     setrange(double xmin, double ymin, double xmax, double ymax);
+       void     setscale(int xscale, int yscale);
+       void     plot(double x, double y, Pixel color);
+       void     box(double x1, double y1, double x2, double y2, Pixel color);
+       void     solidbox(double x1, double y1,	double x2, double y2, Pixel color);
+       void     interpbox(double x1, double y1, double x2, double y2, Pixel c1, Pixel c2, Pixel c3, Pixel c4);
+
+       void     circle(double x, double y, double radius, Pixel color);
+       void     solidcircle(double x, double y,  double radius, Pixel color);
+       void     line(double x1, double y1,  double x2, double y2, Pixel color);
+       void     start();
+       void     drawpixmap(PixMap *pm, double x, double y, Pixel color, Pixel bgcolor);
+       void     xaxis(double x, double y, double xtick, int ticklength, Pixel color);
+       void     yaxis(double x, double y, double ytick, int ticklength, Pixel color);
+       void     triangle(double x1, double y1, double x2, double y2, double x3, double y3, Pixel c);
+
+       void     solidtriangle(double x1, double y1, double x2, double y2, double x3, double y3, Pixel c);
+
+       void     interptriangle(double x1, double y1, Pixel c1,
+			   double x2, double y2, Pixel c2,
+			   double x3, double y3, Pixel c3);
+
+  }
+} Plot2D;
+
+#define LINEAR     10
+#define LOG        11
+
+/* ------------------------------------------------------------------------------
+   Plot3D
+
+   Data Structure for 3-D plots
+   ------------------------------------------------------------------------------ */
+
+typedef struct Plot3D {
+  FrameBuffer    *frame;
+  int            view_xmin;  /* Viewing region */
+  int            view_ymin;
+  int            view_xmax;
+  int            view_ymax;
+  double         xmin;       /* Bounding box */
+  double         ymin;
+  double         zmin;
+  double         xmax;
+  double         ymax;
+  double         zmax;
+  double         xcenter;    /* Center point */
+  double         ycenter;
+  double         zcenter;
+  double         fovy;       /* Field of view */
+  double         aspect;     /* Aspect ratio  */
+  double         znear;      /* near "clipping" plane */
+  double         zfar;       /* far "clipping" plane */
+  double         lookatz;    /* Where is the z-lookat point */
+  double         xshift;     /* Used for translation and stuff */
+  double         yshift;
+  %addmethods {
+    Plot3D(FrameBuffer *frame, double xmin, double ymin, double zmin, double xmax, double ymax, double zmax);
+    ~Plot3D();
+    Plot3D *copy();
+    void   clear(Pixel bgcolor);
+    void   perspective( double fovy, double znear, double zfar);
+    void   lookat( double z);
+    void   autoperspective( double fovy);
+    void   ortho(double left, double right, double bottom, double top);
+    void   autoortho();
+    void   rotx( double deg);
+    void   roty( double deg);
+    void   rotz( double deg);
+    void   rotl( double deg);
+    void   rotr( double deg);
+    void   rotd( double deg);
+    void   rotu( double deg);
+    void   rotc( double deg);
+    void   zoom( double percent);
+    void   left( double percent);
+    void   right( double percent);
+    void   down( double percent);
+    void   up( double percent);
+    void   center( double cx, double cy);
+    void   plot( double x, double y, double z, Pixel Color);
+    void   setview( int vxmin, int vymin, int vxmax, int vymax);
+    void   start();
+    void   line( double x1, double y1, double z1,
+		 double x2, double y2, double z2, Pixel color);
+    void   triangle( double x1, double y1, double z1,
+		     double x2, double y2, double z2,
+		     double x3, double y3, double z3, Pixel color);
+    void   solidtriangle( double x1, double y1, double z1,
+			  double x2, double y2, double z2,
+			  double x3, double y3, double z3, Pixel color);
+    void interptriangle(double x1, double y1, double z1, Pixel c1,
+			double x2, double y2, double z2, Pixel c2,
+			double x3, double y3, double z3, Pixel c3);
+    void   quad( double x1, double y1, double z1,
+		 double x2, double y2, double z2,
+		 double x3, double y3, double z3,
+		 double x4, double y4, double z4,
+		 Pixel color);
+    void   solidquad( double x1, double y1, double z1,
+		      double x2, double y2, double z2,
+		      double x3, double y3, double z3,
+		      double x4, double y4, double z4,
+		      Pixel color);
+    void   interpquad( double x1, double y1, double z1, Pixel c1,
+		       double x2, double y2, double z2, Pixel c2,
+		       double x3, double y3, double z3, Pixel c3,
+		       double x4, double y4, double z4, Pixel c4);
+    void   solidsphere( double x, double y, double z, double radius,Pixel c);
+    void   outlinesphere( double x, double y, double z, double radius,Pixel c, Pixel bc);
+  }
+} Plot3D;
+
+#ifndef SWIGJAVA
+const PixMap *SQUARE = &PixMap_SQUARE;
+const PixMap *TRIANGLE = &PixMap_TRIANGLE; 
+const PixMap *CROSS = &PixMap_CROSS;
+#endif
+
+%enabledoc
+
+
+
+

Examples/GIFPlot/Java/ortho.java

@@ -0,0 +1,107 @@
+import gifplot;
+
+public class ortho {
+
+  static {
+    System.loadLibrary("jgifplot");
+  };
+
+  public static double func(double x, double y) {
+    double r;
+    double f;
+    r = Math.sqrt(x*x + y*y);
+
+    f = (Math.sin(0.30*r*x)+Math.cos(0.30*r*y))/(1.0+r);
+    return f;
+  }
+
+  public static void main(String argv[]) {
+
+    FrameBuffer f;
+    Plot3D      p3;
+    ColorMap    cm;
+    
+    double      x,y;
+    double      dx,dy;
+    double      z1,z2,z3,z4;
+    int         c1,c2,c3,c4;
+    
+    /* Create a framebuffer */
+
+    f = new FrameBuffer(700,400);
+
+    /* Load a colormap */
+
+    cm = new ColorMap("cm15");
+
+    /* Create a new 2D image */
+
+    f.clear(gifplot.BLACK);
+    p3 = new Plot3D(f,-6.3,-6.3,-1.5,6.3,6.3,1.5);
+
+    /* Set viewing region in 2D plot */
+    
+    p3.setview(50,50,650,350);
+
+    /* Set how far away from the image we are */
+    p3.lookat(20);
+
+    /* Set the field of view for the perspective */
+    
+
+//    Plot3D_autoperspective(p3,40);
+
+    p3.autoortho();
+    
+    /* Now make a plot of a 3D function */
+    
+    /* Make a frame */
+
+    f.noclip();
+    f.box(49,49,650,350,gifplot.WHITE);
+    p3.start();   /* Always call this prior to making an image */
+    p3.clear(gifplot.BLACK);
+    p3.rotu(60);
+    p3.rotz(40);
+    x = -6.3;
+    dx = 0.25;
+    while (x < 6.3) {
+	y = -6.3;
+	dy = 0.25;
+	while (y < 6.3) {
+	    z1 = func(x,y);
+	    z2 = func(x+dx,y);
+	    z3 = func(x+dx,y+dy);
+	    z4 = func(x,y+dy);
+	    c1 = (int) ((z1 + 1.0)*120) + 16;
+	    if (c1 < 16) c1 = 16;
+	    if (c1 > 254) c1 = 254;
+
+	    c2 = (int) ((z2 + 1.0)*120) + 16;
+	    if (c2 < 16) c2 = 16;
+	    if (c2 > 254) c2 = 254;
+
+	    c3 = (int) ((z3 + 1.0)*120) + 16;
+	    if (c3 < 16) c3 = 16;
+	    if (c3 > 254) c3 = 254;
+
+	    c4 = (int) ((z4 + 1.0)*120) + 16;
+	    if (c4 < 16) c4 = 16;
+	    if (c4 > 254) c4= 254;
+
+	    p3.interpquad(x,y,z1,(byte) c1,
+			      x+dx,y,z2,(byte) c2,
+			      x+dx,y+dy,z3,(byte) c3,
+			      x,y+dy,z4,(byte) c4);
+	    y = y + dy;
+	}
+	x = x + dx;
+    }
+    
+    /* Make a GIF file */
+
+    f.writeGIF(cm,"plot.gif");
+
+    System.out.println("Image written to 'plot.gif'");
+  }
+}

Examples/GIFPlot/Java/shadow.java

@@ -0,0 +1,22 @@
+import gifplot;
+
+public class shadow {
+
+  static {
+    System.loadLibrary("jgifplot");
+  }
+
+  public static void main(String argv[]) {
+    FrameBuffer fb = new FrameBuffer(300, 300);
+    ColorMap cm = new ColorMap("cmap");
+    
+    fb.clear(gifplot.BLACK);
+    fb.drawstring(50, 50, gifplot.WHITE, gifplot.BLACK, "Hello world", gifplot.VERTICAL);
+    fb.solidbox(200, 200, 220, 240, gifplot.BLUE);
+    fb.line(0, 290, 293, 50, gifplot.RED);
+    fb.circle(100, 100, 10, gifplot.YELLOW);
+    fb.writeGIF(cm, "plot.gif");
+
+    System.out.println("Image written to 'plot.gif'");
+  }
+}

Examples/GIFPlot/Java/simple.java

@@ -0,0 +1,22 @@
+import gifplot;
+
+public class simple {
+
+  static {
+    System.loadLibrary("jgifplot");
+  }
+
+  public static void main(String argv[]) {
+    long f = gifplot.new_FrameBuffer(300, 300);
+    long c = gifplot.new_ColorMap("cmap");
+
+    gifplot.FrameBuffer_clear(f, gifplot.BLACK);
+    gifplot.FrameBuffer_drawstring(f, 50, 50, gifplot.WHITE, gifplot.BLACK, "Hello world", gifplot.HORIZONTAL);
+    gifplot.FrameBuffer_solidbox(f, 200, 200, 220, 240, gifplot.BLUE);
+    gifplot.FrameBuffer_line(f, 0, 290, 293, 50, gifplot.RED);
+    gifplot.FrameBuffer_circle(f, 100, 100, 10, gifplot.YELLOW);
+    gifplot.FrameBuffer_writeGIF(f, c, "plot.gif");
+
+    System.out.println("Image written to 'plot.gif'");
+  }
+}