* ext/tk/lib/tcltklib : bug fix

* ext/tk/lib/tk : bug fix and add Tcl/Tk extension support libraries


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@6559 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ext/tk/sample/tkextlib/tcllib/plotdemos2.rb

@@ -0,0 +1,71 @@
+#!/usr/bin/ruby
+
+require 'tk'
+require 'tkextlib/tcllib/plotchart'
+
+###############################
+
+c1 = TkCanvas.new(:background=>'white', :width=>400, :height=>200)
+c2 = TkCanvas.new(:background=>'white', :width=>400, :height=>200)
+Tk.pack(c1,c2, :fill=>:both, :side=>:top)
+
+###############################
+# Set up a strip chart
+###############################
+slipchart = Tk::Tcllib::Plotchart::Stripchart.new(c1, [0.0, 100.0, 10.0], 
+						      [0.0, 100.0, 20.0])
+
+TkTimer.new(500, -1, proc{|obj| # obj --> TkTimer object
+	      slipchart, xold, xd, yold, yd = obj.return_value
+	      xnew = xold + xd
+	      ynew = yold + (rand() - 0.5) * yd
+	      ynew2 = yold + (rand() - 0.5) * 2.0 * yd
+	      slipchart.plot('series1', xnew, ynew)
+	      slipchart.plot('series2', xnew, ynew2)
+	      obj.stop if xnew >= 200
+	      [slipchart, xnew, xd, ynew, yd] # return_value
+	    }).start(100, proc{
+		       # init return_value
+		       [slipchart, 0.0, 15.0, 50.0, 30.0]
+		     })
+
+slipchart.title "Aha!"
+
+###############################
+# Set up an isometric plot
+###############################
+s = Tk::Tcllib::Plotchart::IsometricPlot.new(c2, [0.0, 100.0], [0.0, 200.0], 
+					     :noaxes)
+
+s.set_zoom_pan
+
+s.plot('rectangle',        [10.0, 10.0, 50.0, 50.0], 'green')
+s.plot('filled-rectangle', [20.0, 20.0, 40.0, 40.0], 'red')
+s.plot('filled-circle',    [70.0, 70.0, 40.0], 'yellow')
+s.plot('circle',           [70.0, 70.0, 42.0])
+
+###############################
+# Check the symbols
+###############################
+h = TkToplevel.new(:title=>'h')
+c = TkCanvas.new(h, :bg=>'white', :width=>400, :height=>200).pack(:fill=>:both)
+
+s = Tk::Tcllib::Plotchart::XYPlot.new(c, [0.0, 100.0, 10.0], 
+				         [0.0, 100.0, 20.0]) 
+s.dataconfig('series1', :colour=>'red',   :type=>:symbol)
+s.dataconfig('series2', :colour=>'green', :type=>:both)
+
+s.yconfig(:format=>"%12.2e")
+
+x = 5.0
+%w(plus cross circle up down dot upfilled downfilled).each{|sym|
+  s.dataconfig('series1', :symbol=>sym)
+  s.dataconfig('series2', :symbol=>sym)
+  s.plot('series1', x, 50.0)
+  s.plot('series2', x, 20)
+  x += 10
+}
+
+##############################
+
+Tk.mainloop