1 files changed, 253 insertions, 0 deletions
diff --git a/src/intcgm/intcgm6.c b/src/intcgm/intcgm6.c
new file mode 100644
index 0000000..c23afee
--- /dev/null
+++ b/src/intcgm/intcgm6.c
@@ -0,0 +1,253 @@
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <math.h>
+
+#include <cd.h>
+
+#include "list.h"
+#include "types.h"
+#include "intcgm.h"
+#include "intcgm2.h"
+#include "intcgm6.h"
+
+void cgm_setlinestyle ( int type )
+{
+  switch ( type )
+  {
+  case LINE_SOLID:
+    cdCanvasLineStyle (intcgm_canvas,  CD_CONTINUOUS );
+    break;
+  case LINE_DASH:
+    cdCanvasLineStyle (intcgm_canvas,  CD_DASHED );
+    break;
+  case LINE_DOT:
+    cdCanvasLineStyle (intcgm_canvas,  CD_DOTTED );
+    break;
+  case LINE_DASH_DOT:
+    cdCanvasLineStyle (intcgm_canvas,  CD_DASH_DOT );
+    break;
+  case LINE_DASH_DOT_DOT:
+    cdCanvasLineStyle (intcgm_canvas,  CD_DASH_DOT_DOT );
+    break;
+  }
+}
+
+void cgm_setlinewidth ( double width )
+{
+  int w;
+  if ( intcgm_cgm.lnwsm == ABSOLUTE )
+    w = cgm_delta_vdc2canvas(width);
+  else
+    w = (int)floor ( width+0.5 );
+
+  cdCanvasLineWidth (intcgm_canvas,  w>0?w:1 );
+}
+
+void cgm_setmarktype ( int type )
+{
+  switch ( type )
+  {
+  case MARK_DOT:
+    cdCanvasMarkType (intcgm_canvas,  CD_STAR );
+    break;
+  case MARK_PLUS:
+    cdCanvasMarkType (intcgm_canvas,  CD_PLUS );
+    break;
+  case MARK_ASTERISK:
+    cdCanvasMarkType (intcgm_canvas,  CD_X );
+    break;
+  case MARK_CIRCLE:
+    cdCanvasMarkType (intcgm_canvas,  CD_CIRCLE );
+    break;
+  case MARK_CROSS:
+    cdCanvasMarkType (intcgm_canvas,  CD_PLUS );
+    break;
+  }
+}
+
+void cgm_setmarksize ( double size )
+{
+  if ( intcgm_cgm.lnwsm == ABSOLUTE )
+    cdCanvasMarkSize (intcgm_canvas,  cgm_delta_vdc2canvas(size) );
+  else
+    cdCanvasMarkSize (intcgm_canvas,  (int)floor ( size*0.5 ) );
+}
+
+long int *cgm_setpattern ( pat_table pat )
+{
+  int i;
+  long int *cor = (long int *) malloc ( pat.nx*pat.ny*sizeof(long int) );
+  
+  for ( i=0; i<pat.nx*pat.ny ; i++ )
+    cor[i] = cgm_getcolor ( pat.pattern[i] );
+  
+  return cor;
+}
+
+int cgm_setintstyle ( int style )
+{
+  if ( style==HOLLOW )
+    return CD_CLOSED_LINES;
+  else if ( style==SOLID )
+  {
+    cdCanvasInteriorStyle (intcgm_canvas,  CD_SOLID );
+    return CD_FILL;
+  }
+  else if ( style==PATTERN )
+  {
+    int i;
+    pat_table *pat;
+    long int *p;
+    
+    for ( i=1; (pat=(pat_table *)cgm_GetList( intcgm_fill_att.pat_list,i ))!=NULL; i++ )
+    {
+      if ( pat->index==intcgm_fill_att.pat_index ) break;
+    }
+    
+    p = (long int *) malloc ( pat->nx*pat->ny*sizeof(long int) );
+    
+    for ( i=0; i<pat->nx*pat->ny; i++ )
+    {
+      if ( intcgm_cgm.clrsm==DIRECT )
+        p[i] = cdEncodeColor ((unsigned char)(pat->pattern[i].rgb.red*255./intcgm_cgm.color_ext.white.red),
+                              (unsigned char)(pat->pattern[i].rgb.green*255./intcgm_cgm.color_ext.white.green),
+                              (unsigned char)(pat->pattern[i].rgb.blue*255./intcgm_cgm.color_ext.white.blue) );
+      else
+        p[i] = cdEncodeColor ((unsigned char)(intcgm_color_table[pat->pattern[i].ind].red*255/intcgm_cgm.color_ext.white.red),
+                              (unsigned char)(intcgm_color_table[pat->pattern[i].ind].green*255/intcgm_cgm.color_ext.white.green),
+                              (unsigned char)(intcgm_color_table[pat->pattern[i].ind].blue*255/intcgm_cgm.color_ext.white.blue) );
+    }
+    
+    cdCanvasPattern(intcgm_canvas,  pat->nx, pat->ny, (long *) p );
+    
+    return CD_FILL;
+  }
+  else if ( style==HATCH )
+  {
+    cdCanvasHatch (intcgm_canvas,  intcgm_fill_att.hatch_index-1 );
+    return CD_FILL;
+  }
+  else
+    return CD_CLOSED_LINES;
+}
+
+long int cgm_getcolor ( tcolor cor )
+{
+  
+  if ( intcgm_cgm.clrsm==INDEXED )
+    return cdEncodeColor ((unsigned char)(intcgm_color_table[cor.ind].red*255/intcgm_cgm.color_ext.white.red),
+                          (unsigned char)(intcgm_color_table[cor.ind].green*255/intcgm_cgm.color_ext.white.green),
+                          (unsigned char)(intcgm_color_table[cor.ind].blue*255/intcgm_cgm.color_ext.white.blue) );
+  else
+    return cdEncodeColor ((unsigned char)(cor.rgb.red*255/intcgm_cgm.color_ext.white.red),
+                          (unsigned char)(cor.rgb.green*255/intcgm_cgm.color_ext.white.green),
+                          (unsigned char)(cor.rgb.blue*255/intcgm_cgm.color_ext.white.blue) );
+}
+
+int cgm_vdcx2canvas ( double vdc )
+{
+  if ( intcgm_cgm.drawing_mode==ABSTRACT )
+    return (int) floor ( intcgm_scale_factor_x*(vdc-intcgm_vdc_ext.xmin)+.5 ) + intcgm_view_xmin;
+  else
+    return (int) floor ( intcgm_scale_factor_mm_x*(vdc-intcgm_vdc_ext.xmin)*intcgm_cgm.scaling_mode.scale_factor +
+                         intcgm_vdc_ext.xmin*intcgm_cgm.scaling_mode.scale_factor + .5 );
+}
+
+int cgm_vdcy2canvas ( double vdc )
+{
+  if ( intcgm_cgm.drawing_mode==ABSTRACT )
+    return (int) floor ( intcgm_scale_factor_y*(vdc-intcgm_vdc_ext.ymin)+.5 ) + intcgm_view_ymin;
+  else
+    return (int) floor ( intcgm_scale_factor_mm_y*(vdc-intcgm_vdc_ext.ymin)*intcgm_cgm.scaling_mode.scale_factor +
+                         intcgm_vdc_ext.ymin*intcgm_cgm.scaling_mode.scale_factor + .5 );
+}
+
+int cgm_delta_vdc2canvas ( double vdc )
+{
+  int delta = (int) cgm_vdcx2canvas(intcgm_vdc_ext.xmin+vdc) - (int) cgm_vdcx2canvas(intcgm_vdc_ext.xmin);
+  return delta;
+}
+
+double cgm_canvas2vdcx ( int x )
+{
+  if ( intcgm_cgm.drawing_mode==ABSTRACT )
+    return (double) (x-intcgm_view_xmin)/intcgm_scale_factor_x + intcgm_vdc_ext.xmin;
+  else
+    return (double) (x-intcgm_view_xmin)/(intcgm_scale_factor_mm_x*intcgm_cgm.scaling_mode.scale_factor) + intcgm_vdc_ext.xmin;
+}
+
+double cgm_canvas2vdcy ( int y )
+{
+  if ( intcgm_cgm.drawing_mode==ABSTRACT )
+    return (double) (y-intcgm_view_ymin)/intcgm_scale_factor_y + intcgm_vdc_ext.ymin;
+  else
+    return (double) (y-intcgm_view_ymin)/(intcgm_scale_factor_mm_y*intcgm_cgm.scaling_mode.scale_factor) + intcgm_vdc_ext.ymin;
+}
+
+void cgm_getpolybbox ( tpoint *pt, int n_points, double *bb_xmin, double *bb_ymin,
+                  double *bb_xmax, double *bb_ymax )
+{
+  int i;
+  
+  *bb_xmin = *bb_xmax = pt[0].x;
+  *bb_ymin = *bb_ymax = pt[0].y;
+  
+  for ( i=1; i<n_points; i++)
+  {
+    if ( pt[i].x < *bb_xmin ) *bb_xmin = pt[i].x;
+    else if ( pt[i].x > *bb_xmax ) *bb_xmax = pt[i].x;
+    if ( pt[i].y < *bb_ymin ) *bb_ymin = pt[i].y;
+    else if ( pt[i].y > *bb_ymax ) *bb_ymax = pt[i].y;
+  }
+}
+
+void cgm_getincpolybbox ( tpoint *pt, int n_points, double *bb_xmin, double *bb_ymin,
+                     double *bb_xmax, double *bb_ymax )
+{
+  int i;
+  double px, py;
+  
+  px = *bb_xmin = *bb_xmax = pt[0].x;
+  py = *bb_ymin = *bb_ymax = pt[0].y;
+  
+  for ( i=1; i<n_points; i++)
+  {
+    px += pt[i].x;   py += pt[i].y;
+    if ( px < *bb_xmin ) *bb_xmin = px;
+    else if ( px > *bb_xmax ) *bb_xmax = px;
+    if ( py < *bb_ymin ) *bb_ymin = py;
+    else if ( py > *bb_ymax ) *bb_ymax = py;
+  }
+}
+
+int cgm_setfont ( int font, int style, double height )
+{
+  int size;
+  int cy;
+  char* type_face;
+  
+  cy = cgm_delta_vdc2canvas ( height );
+  size = (int) floor (((cy/intcgm_scale_factor_mm_y)/0.353)+0.5);
+  switch (font)
+  {
+  case 0:
+    type_face = "System";
+    break;
+  case 1:
+    type_face = "Courier";
+    break;
+  case 2:
+    type_face = "Times";
+    break;
+  case 3:
+    type_face = "Helvetica";
+    break;
+  default:
+    return 0;
+  }
+  
+  cdCanvasFont(intcgm_canvas, type_face, style, size );
+  
+  return 0;
+}