examples/graphstyles/cal.py

   1 import calendar
   2 from pyx import *
   3
   4 class daystyle(graph.style._style):
   5
   6     def columnnames(self, privatedata, sharedata, graph, columnnames):
   7         # register the new column names
   8         usecolumnnames = ["day", "month", "weekday", "note"]
   9         for columnname in usecolumnnames:
  10             if columnname not in columnnames:
  11                 raise ValueError("column '%s' missing" % columnname)
  12         return usecolumnnames
  13
  14     def adjustaxis(self, privatedata, sharedata, graph, columnname, data):
  15         # adjust axes ranges
  16         if columnname == "month":
  17             graph.axes["x"].adjustaxis([(x, 0) for x in data])
  18             graph.axes["x"].adjustaxis([(x, 1) for x in data])
  19         if columnname == "day":
  20             graph.axes["y"].adjustaxis([(x, 0) for x in data])
  21             graph.axes["y"].adjustaxis([(x, 1) for x in data])
  22
  23     def drawpoint(self, privatedata, sharedata, graph, point):
  24         # draw a single day
  25         x1_pt, y1_pt = graph.pos_pt((point["month"], 0), (point["day"], 0))
  26         x2_pt, y2_pt = graph.pos_pt((point["month"], 1), (point["day"], 1))
  27         p = path.rect_pt(x1_pt, y1_pt, x2_pt - x1_pt, y2_pt - y1_pt)
  28         if point["weekday"] == calendar.day_abbr[-1]:
  29             graph.stroke(p, [deco.filled([color.gray(0.8)])])
  30         else:
  31             graph.stroke(p)
  32         graph.text_pt(x1_pt+3, y2_pt-3,
  33                       "%i %s" % (point["day"], point["weekday"]),
  34                       [text.valign.top])
  35         if point["note"]:
  36             graph.text_pt(x1_pt+3, y1_pt+3, point["note"], [text.size.tiny])
  37
  38 # create calendar data
  39 year = 2007
  40 notes = {1: {17: r"\PyX{} 0.2 (2003)", 20: r"\PyX{} 0.5 (2004)", 22: r"\PyX{} 0.5.1 (2004)"},
  41          3: {30: r"\PyX{} 0.6 (2004)", 31: r"\PyX{} 0.3 ('03), \PyX{} 0.6.1 ('04)"},
  42          4: {4: r"\PyX{} 0.3.1 (2003)", 7: r"\PyX{} 0.6.2 (2004)", 27: r"\PyX{} 0.6.3 (2004)"},
  43          5: {24: r"\PyX{} 0.9 (2006)"},
  44          7: {13: r"\PyX{} 0.8 (2005)"},
  45          8: {13: r"\PyX{} 0.8.1 (2005)", 22: r"\PyX{} 0.4 (2003)"},
  46          9: {17: r"\PyX{} 0.4.1 (2003)"},
  47          10: {3: r"\PyX{} 0.10 (2007)", 7: r"\PyX{} 0.1 (2002)", 21: r"\PyX{} 0.7 (2004)"},
  48          12: {15: r"\PyX{} 0.7.1 (2004)"}}
  49 d = graph.data.points([(day,
  50                         calendar.month_name[month],
  51                         calendar.day_abbr[calendar.weekday(year, month, day)],
  52                         notes.get(month, {}).get(day))
  53                        for month in range(1, 13)
  54                        for day in range(1, calendar.monthrange(year, month)[1]+1)],
  55                       day=1, month=2, weekday=3, note=4)
  56
  57 # create the calendar
  58 g = graph.graphxy(width=40, x2=graph.axis.bar(dist=0, linkpainter=None),
  59                   y=graph.axis.bar(dist=0, reverse=1, painter=None))
  60 g.plot(d, [daystyle()])
  61
  62 # we could write the full calendar by
  63 # g.writeEPSfile("cal", paperformat=document.paperformat.A3, rotated=1)
  64
  65 # instead we clip the result to show only a small part
  66 clip = canvas.clip(g.bbox().enlarged(0.1, bottom=-17, right=-25).path())
  67 gc = canvas.canvas([clip])
  68 gc.insert(g)
  69 # and add some dots at the clipped parts
  70 gcbb = gc.bbox()
  71 c = canvas.canvas()
  72 c.insert(gc)
  73 c.text(gcbb.right()+0.5, gcbb.center()[1], r"\dots")
  74 c.text(gcbb.center()[0], gcbb.bottom()-0.5, r"\dots")
  75 c.writeEPSfile("cal")
  76 c.writePDFfile("cal")