/[cvs]/fract/mandelzoom.cgi
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revision 1.2 by teddy, Sun Feb 25 05:49:07 2001 UTC revision 1.4 by teddy, Sun Feb 25 20:12:25 2001 UTC
# Line 3  Line 3 
3  import cgi, Image, ImageDraw, sys, math  import cgi, Image, ImageDraw, sys, math
4  from string import atoi, atof  from string import atoi, atof
5    
6    # This is to get backtrace output
7  sys.stderr = sys.stdout  sys.stderr = sys.stdout
8    
9    # Uncomment this to get the backtrace more readable
10    #print "Content-Type: text/plain"
11    #print ""
12    
13  form= cgi.FieldStorage()  form= cgi.FieldStorage()
14    
15  # Image size  # Image size
16  if form.has_key('width'):  if form.has_key('width'):
17      width= atoi(form['width'].value)      width= atoi(form['width'].value)
18  else:  else:
19      width= 570      width= 480
20  if form.has_key('height'):  if form.has_key('height'):
21      height= atoi(form['height'].value)      height= atoi(form['height'].value)
22  else:  else:
23      height= 570      height= 480
24    
25  xmax, ymax = width-1, height-1          # Coordinate maximums  xmax, ymax = width-1, height-1          # Coordinate maximums
26    
# Line 40  debug= form.has_key('debug') Line 45  debug= form.has_key('debug')
45  if form.has_key('iter'):  if form.has_key('iter'):
46      maxiter= atoi(form['iter'].value)      maxiter= atoi(form['iter'].value)
47  else:  else:
48      maxiter= 270      maxiter= 240
   
 #print "Content-Type: text/plain"  
 #print ""  
49    
50  # If type!=image, then output an HTML page, not an image  # If type!=image, then output an HTML page, not an image
51  if not (form.has_key('type') and form['type'].value == "image"):  if not (form.has_key('type') and form['type'].value == "image"):
# Line 76  if not (form.has_key('type') and form['t Line 78  if not (form.has_key('type') and form['t
78      print 'ALIGN=BOTTOM HEIGHT="%s"' % (str(height)),      print 'ALIGN=BOTTOM HEIGHT="%s"' % (str(height)),
79      print 'WIDTH="%s"><P>' % (str(width))      print 'WIDTH="%s"><P>' % (str(width))
80      print 'Zoom: <SELECT NAME="zoom">'      print 'Zoom: <SELECT NAME="zoom">'
81      for zv in [-5, -3, -2, 1, 2, 3, 5]:      for zv in [1.0/5, 1.0/3, 1.0/2, 1.0/1.5, 1, 1.5, 2, 3, 5]:
82          print '<OPTION',          print '<OPTION',
83          if zv==zoom:          if zv==zoom:
84              print 'SELECTED',              print 'SELECTED',
85          print 'VALUE="%s"' % (str(zv))          print 'VALUE="%s"' % (str(zv))
86          if zv < 0:          if zv == 1:
87              print '>÷%s' % (str(-zv))              print '>Pan'
88            elif zv < 1:
89                if int(1/zv) == 1/zv:
90                    print '>Out ÷%s' % (str(int(1/zv)))
91                else:
92                    print '>Out ÷%s' % (str(1/zv))
93          else:          else:
94              print '>×%s' % (str(zv))              print '>In ×%s' % (str(zv))
95      print '</SELECT>'      print '</SELECT>'
96      print """Width: <INPUT TYPE=TEXT NAME="width" MAXLENGTH="4" SIZE="3"      print """Width: <INPUT TYPE=TEXT NAME="width" MAXLENGTH="4" SIZE="3"
97      VALUE="%s">      VALUE="%s">
# Line 92  if not (form.has_key('type') and form['t Line 99  if not (form.has_key('type') and form['t
99      VALUE="%s">      VALUE="%s">
100      Iterations: <INPUT TYPE=TEXT NAME="iter" MAXLENGTH="4" SIZE="3"      Iterations: <INPUT TYPE=TEXT NAME="iter" MAXLENGTH="4" SIZE="3"
101      VALUE="%s">      VALUE="%s">
102      Debug mode: <INPUT TYPE=CHECKBOX NAME="debug" """ % (str(width), str(height), str(maxiter))      Debug mode: <INPUT TYPE=CHECKBOX NAME="debug" """ % (str(width), str(height), str(maxiter)),
103      if debug:      if debug:
104          print 'CHECKED>'          print 'CHECKED>'
105      else:      else:
106          print '>'          print '>'
107        print '<INPUT TYPE=SUBMIT VALUE="Apply">'
108      for key in form.keys():      for key in form.keys():
109          if key not in ["zoom", "type", "debug", "image.x", "image.y", "iter", "height", "width"]:          if key not in ["zoom", "type", "debug", "image.x", "image.y", "iter", "height", "width"]:
110              print '<INPUT TYPE=HIDDEN NAME="%s" VALUE="%s">' % (key, form[key].value)              print '<INPUT TYPE=HIDDEN NAME="%s" VALUE="%s">' % (key, form[key].value)
111        #for var in [("diag", diag), ("cx", cx), ("cy", cy)]:
112            
113      print '<INPUT TYPE=HIDDEN NAME=type VALUE="html">'      print '<INPUT TYPE=HIDDEN NAME=type VALUE="html">'
114    
115      print """</FORM>      print """</FORM>
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