add many, many more example conversions. still not complete

32 files changed, 2761 insertions, 1 deletions

diff --git a/examples/3dgraphs/bar.jl b/examples/3dgraphs/bar.jl
new file mode 100644
index 0000000..a70f2b2
--- /dev/null
+++ b/examples/3dgraphs/bar.jl
@@ -0,0 +1,28 @@
+
+# Original Python:
+#   from pyx import *
+#
+#   g = graph.graphxyz(0, 0, size=5, x=graph.axis.bar(), y=graph.axis.bar(), z=nothing, z2=graph.axis.lin())
+#   g.plot(graph.data.data(graph.data.points([[1, 1, 1.4], [1, 2, 1.8], [2, 1, -0.5], [2, 2, 0.9]]), xname=1, yname=2, z2=3),
+#       [graph.style.barpos(fromvalue=0, frompathattrs=nothing), graph.style.bar(barattrs=[style.linejoin.bevel])])
+#   g.writeEPSfile("bar")
+#   g.writePDFfile("bar")
+#   g.writeSVGfile("bar")
+
+
+using PyX
+
+g = graph.graphxyz(0, 0, size=5,
+                   x=graph_axis.bar(),
+                   y=graph_axis.bar(),
+                   z=nothing,
+                   z2=graph_axis.lin())
+plot(g, graph_data.data(graph_data.points([[1  1   1.4];
+                                           [1  2   1.8];
+                                           [2  1  -0.5];
+                                           [2  2   0.9]]), xname=1, yname=2, z2=3),
+       [graph_style.barpos(fromvalue=0, frompathattrs=nothing),
+        graph_style.bar(barattrs=[style_linejoin.bevel])])
+writeEPSfile(g, "bar")
+writePDFfile(g, "bar")
+
diff --git a/examples/3dgraphs/color.dat b/examples/3dgraphs/color.dat
new file mode 100644
index 0000000..9986579
--- /dev/null
+++ b/examples/3dgraphs/color.dat
@@ -0,0 +1,961 @@
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diff --git a/examples/3dgraphs/color.jl b/examples/3dgraphs/color.jl
new file mode 100644
index 0000000..09d8ee8
--- /dev/null
+++ b/examples/3dgraphs/color.jl
@@ -0,0 +1,21 @@
+
+# Original Python:
+#   from pyx import *
+#
+#   g = graph.graphxyz(size=4, projector=graph.graphxyz.parallel(170, 45))
+#   g.plot(graph.data.file("color.dat", x=1, y=2, z=3, color=3),
+#       [graph.style.surface(gradient=color.gradient.RedGreen, 
+#                               gridcolor=color.rgb.black,
+#                               backcolor=color.rgb.black)])
+#   g.writeEPSfile("color")
+#   g.writePDFfile("color")
+#   g.writeSVGfile("color")
+
+g = graph.graphxyz(size=4, projector=graph_graphxyz.parallel(170, 45))
+plot(g, graph_data.file("examples/3dgraphs/color.dat", x=1, y=2, z=3, color=3),
+       [graph_style.surface(gradient=color_gradient.RedGreen, 
+                            gridcolor=color_rgb.black,
+                            backcolor=color_rgb.black)])
+writeEPSfile(g, "color")
+writePDFfile(g, "color")
+
diff --git a/examples/3dgraphs/grid.dat b/examples/3dgraphs/grid.dat
new file mode 100644
index 0000000..9986579
--- /dev/null
+++ b/examples/3dgraphs/grid.dat
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diff --git a/examples/3dgraphs/grid.jl b/examples/3dgraphs/grid.jl
new file mode 100644
index 0000000..305aa29
--- /dev/null
+++ b/examples/3dgraphs/grid.jl
@@ -0,0 +1,18 @@
+
+# Original Python:
+#   from pyx import *
+#
+#   g = graph.graphxyz(size=4, z=graph.axis.lin(min=0.001))
+#   g.plot(graph.data.file("grid.dat", x=1, y=2, z=3), [graph.style.grid()])
+#   g.writeEPSfile("grid")
+#   g.writePDFfile("grid")      
+#   g.writeSVGfile("grid")      
+
+using PyX
+
+g = graph.graphxyz(size=4, z=graph_axis.lin(min=0.001))
+plot(g, graph_data.file("examples/3dgraphs/grid.dat", x=1, y=2, z=3),
+        [graph_style.grid()])
+writeEPSfile(g, "grid")
+writePDFfile(g, "grid")
+
diff --git a/examples/bargraphs/changebar.jl b/examples/bargraphs/changebar.jl
new file mode 100644
index 0000000..cbb68aa
--- /dev/null
+++ b/examples/bargraphs/changebar.jl
@@ -0,0 +1,17 @@
+
+# Original Python:
+
+#   from pyx import *
+
+#   g = graph.graphxy(width=8, x=graph.axis.bar())
+#   g.plot(graph.data.file("minimal.dat", xname=0, y=2), [graph.style.changebar()])
+#   g.writeEPSfile("changebar")
+#   g.writePDFfile("changebar")
+#   g.writeSVGfile("changebar")
+
+using PyX
+
+g = graph.graphxy(width=8, x=graph_axis.bar())
+plot(g, graph_data.file("examples/bargraphs/minimal.dat", xname=0, y=2), [graph_style.changebar()])
+writeEPSfile(g, "changebar")
+writePDFfile(g, "changebar")
diff --git a/examples/bargraphs/compare.jl b/examples/bargraphs/compare.jl
new file mode 100644
index 0000000..b2a43e3
--- /dev/null
+++ b/examples/bargraphs/compare.jl
@@ -0,0 +1,22 @@
+
+# Original Python:
+
+#   from pyx import *
+
+#   g = graph.graphxy(width=8, x=graph.axis.nestedbar())
+#   g.plot([graph.data.file("minimal.dat", xname="$0, 0", y=2),
+#           graph.data.file("minimal.dat", xname="$0, 1", y=3)],
+#       [graph.style.bar()])
+#   g.writeEPSfile("compare")
+#   g.writePDFfile("compare")
+#   g.writeSVGfile("compare")
+
+using PyX
+using LaTeXStrings
+
+g = graph.graphxy(width=8, x=graph_axis.nestedbar())
+plot(g, [graph_data.file("examples/bargraphs/minimal.dat", xname=L"$0, 0", y=2),
+      graph_data.file("examples/bargraphs/minimal.dat", xname=L"$0, 1", y=3)],
+  [graph_style.bar()])
+writeEPSfile(g, "compare")
+writePDFfile(g, "compare")
diff --git a/examples/bargraphs/errors.jl b/examples/bargraphs/errors.jl
new file mode 100644
index 0000000..da22081
--- /dev/null
+++ b/examples/bargraphs/errors.jl
@@ -0,0 +1,35 @@
+
+# Original Python:
+
+#   from random import random
+#   from pyx import *
+
+#   g = graph.graphxy(width=8, x=graph.axis.bar())
+#   g.plot(graph.data.file("minimal.dat", xname=0, y=2, stack=3,
+#                       dy="1+random()", dstack="1+random()",
+#                       context={"random": random}),
+#       [graph.style.errorbar(),
+#           graph.style.stackedbarpos("stack"),
+#           graph.style.bar([color.rgb.green]),
+#           graph.style.range({"y": "stack"}),
+#           graph.style.errorbar()])
+#   g.writeEPSfile("errors")
+#   g.writePDFfile("errors")
+#   g.writeSVGfile("errors")
+
+using PyX
+
+using PyCall
+@pyimport random
+
+g = graph.graphxy(width=8, x=graph_axis.bar())
+plot(g, graph_data.file("examples/bargraphs/minimal.dat", xname=0, y=2, stack=3,
+                    dy="1+random()", dstack="1+random()",
+                    context=Dict("random"=>random.random)),
+    [graph_style.errorbar(),
+     graph_style.stackedbarpos("stack"),
+     graph_style.bar([color_rgb.green]),
+     graph_style.range(Dict("y"=>"stack")),
+     graph_style.errorbar()])
+writeEPSfile(g, "errors")
+writePDFfile(g, "errors")
diff --git a/examples/bargraphs/fromvalue.jl b/examples/bargraphs/fromvalue.jl
new file mode 100644
index 0000000..0b8e72e
--- /dev/null
+++ b/examples/bargraphs/fromvalue.jl
@@ -0,0 +1,19 @@
+
+# Original Python:
+
+#   from pyx import *
+
+#   g = graph.graphxy(width=8, x=graph.axis.bar())
+#   g.plot(graph.data.file("minimal.dat", xname=0, y=2),
+#       [graph.style.barpos(fromvalue=0), graph.style.bar()])
+#   g.writeEPSfile("fromvalue")
+#   g.writePDFfile("fromvalue")
+#   g.writeSVGfile("fromvalue")
+
+using PyX
+
+g = graph.graphxy(width=8, x=graph_axis.bar())
+plot(g, graph_data.file("examples/bargraphs/minimal.dat", xname=0, y=2),
+    [graph_style.barpos(fromvalue=0), graph_style.bar()])
+writeEPSfile(g, "fromvalue")
+writePDFfile(g, "fromvalue")
diff --git a/examples/bargraphs/minimal.dat b/examples/bargraphs/minimal.dat
new file mode 100644
index 0000000..d7b89a3
--- /dev/null
+++ b/examples/bargraphs/minimal.dat
@@ -0,0 +1,12 @@
+January    -5   1
+Feburary   -4   3
+March       0   8
+April       3  13
+May         7  18
+June       10  21
+July       12  23
+August     12  23
+September   8  19
+October     4  13
+November    0   6
+December   -4   2
diff --git a/examples/bargraphs/minimal.jl b/examples/bargraphs/minimal.jl
new file mode 100644
index 0000000..54683c1
--- /dev/null
+++ b/examples/bargraphs/minimal.jl
@@ -0,0 +1,15 @@
+
+# Original Python:
+
+#   from pyx import *
+
+#   g = graph.graphxy(width=8, x=graph.axis.bar())
+#   g.plot(graph.data.file("minimal.dat", xname=0, y=2), [graph.style.bar()])
+#   g.writeEPSfile("minimal")
+#   g.writePDFfile("minimal")
+#   g.writeSVGfile("minimal")
+
+g = graph.graphxy(width=8, x=graph_axis.bar())
+plot(g, graph_data.file("examples/bargraphs/minimal.dat", xname=0, y=2), [graph_style.bar()])
+writeEPSfile(g, "bar_minimal")
+writePDFfile(g, "bar_minimal")
diff --git a/examples/bargraphs/month.jl b/examples/bargraphs/month.jl
new file mode 100644
index 0000000..8f5b49d
--- /dev/null
+++ b/examples/bargraphs/month.jl
@@ -0,0 +1,27 @@
+
+# Original Python:
+
+#   from pyx import *
+
+#   mypainter = graph.axis.painter.bar(nameattrs=[trafo.rotate(45),
+#                                               text.halign.right],
+#                                   innerticklength=0.1)
+#   myaxis = graph.axis.bar(painter=mypainter)
+
+#   g = graph.graphxy(width=8, x=myaxis)
+#   g.plot(graph.data.file("minimal.dat", xname=1, y=2), [graph.style.bar()])
+#   g.writeEPSfile("month")
+#   g.writePDFfile("month")
+#   g.writeSVGfile("month")
+
+using PyX
+mypainter = graph_axis_painter.bar(nameattrs=[trafo.rotate(45),
+                                            text_halign.right],
+                                innerticklength=0.1)
+myaxis = graph_axis.bar(painter=mypainter)
+
+g = graph.graphxy(width=8, x=myaxis)
+plot(g, graph_data.file("examples/bargraphs/minimal.dat", xname=1, y=2),
+        [graph_style.bar()])
+writeEPSfile(g, "month")
+writePDFfile(g, "month")
diff --git a/examples/bargraphs/stacked.jl b/examples/bargraphs/stacked.jl
new file mode 100644
index 0000000..a069b76
--- /dev/null
+++ b/examples/bargraphs/stacked.jl
@@ -0,0 +1,27 @@
+
+# Original Python:
+
+#   from pyx import *
+
+#   g = graph.graphxy(width=14, height=6, x=graph.axis.bar())
+#   g.plot(graph.data.file("minimal.dat", xname=0, y=2, stack=3),
+#       [graph.style.bar(),
+#           graph.style.text("y"),
+#           graph.style.stackedbarpos("stack"),
+#           graph.style.bar([color.rgb.green]),
+#           graph.style.text("stack")])
+#   g.writeEPSfile("stacked")
+#   g.writePDFfile("stacked")
+#   g.writeSVGfile("stacked")
+
+using PyX
+
+g = graph.graphxy(width=14, height=6, x=graph_axis.bar())
+plot(g, graph_data.file("examples/bargraphs/minimal.dat", xname=0, y=2, stack=3),
+        [graph_style.bar(),
+         graph_style.text("y"),
+         graph_style.stackedbarpos("stack"),
+         graph_style.bar([color_rgb.green]),
+         graph_style.text("stack")])
+writeEPSfile(g, "stacked")
+writePDFfile(g, "stacked")
diff --git a/examples/drawing/arrow.jl b/examples/drawing/arrow.jl
new file mode 100644
index 0000000..ec2cb06
--- /dev/null
+++ b/examples/drawing/arrow.jl
@@ -0,0 +1,23 @@
+
+# Original Python:
+#   from pyx import *
+
+#   c = canvas.canvas()
+#   c.stroke(path.curve(0, 0, 0, 4, 2, 4, 3, 3),
+#           [style.linewidth.THICK, style.linestyle.dashed, color.rgb.blue,
+#           deco.earrow([deco.stroked([color.rgb.red, style.linejoin.round]),
+#                       deco.filled([color.rgb.green])], size=1)])
+#   c.writeEPSfile("arrow")
+#   c.writePDFfile("arrow")
+#   c.writeSVGfile("arrow")
+
+
+using PyX
+
+c = canvas.canvas()
+stroke(c, path.curve(0, 0, 0, 4, 2, 4, 3, 3),
+          [style_linewidth.THICK, style_linestyle.dashed, color_rgb.blue,
+           deco.earrow([deco.stroked([color_rgb.red, style_linejoin.round]),
+                        deco.filled([color_rgb.green])], size=1)])
+writeEPSfile(c, "arrow")
+writePDFfile(c, "arrow")
diff --git a/examples/drawing/metapost.jl.broken b/examples/drawing/metapost.jl.broken
new file mode 100644
index 0000000..bcd2f84
--- /dev/null
+++ b/examples/drawing/metapost.jl.broken
@@ -0,0 +1,51 @@
+
+# Original Python:
+#   from pyx import *
+#   from pyx.metapost.path import beginknot, endknot, smoothknot, tensioncurve
+
+#   p1, p2, p3, p4, p5 = (0, 0), (2, 1.33), (1.3, 3), (0.33, 2.33), (1, 1.67)
+#   openpath = metapost.path.path([
+#       beginknot(*p1), tensioncurve(), smoothknot(*p2), tensioncurve(),
+#       smoothknot(*p3), tensioncurve(), smoothknot(*p4), tensioncurve(),
+#       endknot(*p5)])
+#   closedpath = metapost.path.path([
+#       smoothknot(*p1), tensioncurve(), smoothknot(*p2), tensioncurve(),
+#       smoothknot(*p3), tensioncurve(), smoothknot(*p4), tensioncurve(),
+#       smoothknot(*p5), tensioncurve()])
+#   c = canvas.canvas()
+#   for p in [p1, p2, p3, p4, p5]:
+#       c.fill(path.circle(p[0], p[1], 0.05), [color.rgb.red])
+#       c.fill(path.circle(p[0], p[1], 0.05), [color.rgb.red, trafo.translate(2, 0)])
+#   c.stroke(openpath)
+#   c.stroke(closedpath, [trafo.translate(2, 0)])
+
+#   c.writeEPSfile("metapost")
+#   c.writePDFfile("metapost")
+#   c.writeSVGfile("metapost")
+
+using PyX
+
+beginknot = metapost_path.beginknot
+endknot = metapost_path.endknot
+smoothknot = metapost_path.smoothknot
+tensioncurve = metapost_path.smoothknot
+
+p1, p2, p3, p4, p5 = (0, 0), (2, 1.33), (1.3, 3), (0.33, 2.33), (1, 1.67)
+openpath = metapost_path.path([
+    beginknot(p1...), tensioncurve(), smoothknot(p2...), tensioncurve(),
+    smoothknot(p3...), tensioncurve(), smoothknot(p4...), tensioncurve(),
+    endknot(p5...)])
+closedpath = metapost_path.path([
+    smoothknot(p1...), tensioncurve(), smoothknot(p2...), tensioncurve(),
+    smoothknot(p3...), tensioncurve(), smoothknot(p4...), tensioncurve(),
+    smoothknot(p5...), tensioncurve()])
+c = canvas.canvas()
+for p in [p1, p2, p3, p4, p5]:
+    fill(c, path.circle(p[0], p[1], 0.05), [color_rgb.red])
+    fill(c, path.circle(p[0], p[1], 0.05), [color_rgb.red, trafo.translate(2, 0)])
+stroke(c, openpath)
+stroke(c, closedpath, [trafo.translate(2, 0)])
+
+writeEPSfile(c, "metapost")
+writePDFfile(c, "metapost")
+
diff --git a/examples/drawing/path.jl b/examples/drawing/path.jl
new file mode 100644
index 0000000..380d3ed
--- /dev/null
+++ b/examples/drawing/path.jl
@@ -0,0 +1,20 @@
+# Original Python:
+#   from pyx import *
+
+#   c = canvas.canvas()
+#   c.stroke(path.line(0, 0, 3, 0))
+#   c.stroke(path.rect(0, 1, 1, 1))
+#   c.fill(path.circle(2.5, 1.5, 0.5))
+#   c.writeEPSfile("path")
+#   c.writePDFfile("path")
+#   c.writeSVGfile("path")
+
+using PyX
+
+c = canvas.canvas()
+stroke(c, path.line(0, 0, 3, 0))
+stroke(c, path.rect(0, 1, 1, 1))
+pyx_fill(c, path.circle(2.5, 1.5, 0.5))
+
+writeEPSfile(c, "path")
+writePDFfile(c, "path")
diff --git a/examples/drawing/pathitem.jl b/examples/drawing/pathitem.jl
new file mode 100644
index 0000000..2835313
--- /dev/null
+++ b/examples/drawing/pathitem.jl
@@ -0,0 +1,46 @@
+    
+# Original Python:
+#   from pyx import *
+
+#   c = canvas.canvas()
+
+#   rect1 = path.path(path.moveto(0, 0), path.lineto(1, 0),
+#                   path.moveto(1, 0), path.lineto(1, 1),
+#                   path.moveto(1, 1), path.lineto(0, 1),
+#                   path.moveto(0, 1), path.lineto(0, 0))
+#   rect2 = path.path(path.moveto(2, 0), path.lineto(3, 0),
+#                   path.lineto(3, 1), path.lineto(2, 1),
+#                   path.lineto(2, 0))
+#   rect3 = path.path(path.moveto(4, 0), path.lineto(5, 0),
+#                   path.lineto(5, 1), path.lineto(4, 1),
+#                   path.closepath())
+
+#   c.stroke(rect1, [style.linewidth.THICK])
+#   c.stroke(rect2, [style.linewidth.THICK])
+#   c.stroke(rect3, [style.linewidth.THICK])
+
+#   c.writeEPSfile("pathitem")
+#   c.writePDFfile("pathitem")
+#   c.writeSVGfile("pathitem")
+
+using PyX
+
+c = canvas.canvas()
+
+rect1 = path.path(path.moveto(0, 0), path.lineto(1, 0),
+                  path.moveto(1, 0), path.lineto(1, 1),
+                  path.moveto(1, 1), path.lineto(0, 1),
+                  path.moveto(0, 1), path.lineto(0, 0))
+rect2 = path.path(path.moveto(2, 0), path.lineto(3, 0),
+                  path.lineto(3, 1), path.lineto(2, 1),
+                  path.lineto(2, 0))
+rect3 = path.path(path.moveto(4, 0), path.lineto(5, 0),
+                  path.lineto(5, 1), path.lineto(4, 1),
+                  path.closepath())
+
+stroke(c, rect1, [style_linewidth.THICK])
+stroke(c, rect2, [style_linewidth.THICK])
+stroke(c, rect3, [style_linewidth.THICK])
+
+writeEPSfile(c, "pathitem")
+writePDFfile(c, "pathitem")
diff --git a/examples/drawing/strokefill.jl b/examples/drawing/strokefill.jl
new file mode 100644
index 0000000..50b2d35
--- /dev/null
+++ b/examples/drawing/strokefill.jl
@@ -0,0 +1,20 @@
+# Original Python:
+#   from pyx import *
+
+#   c = canvas.canvas()
+#   c.stroke(path.rect(0, 0, 1, 1), [style.linewidth.Thick,
+#                                   color.rgb.red,
+#                                   deco.filled([color.rgb.green])])
+#   c.writeEPSfile("strokefill")
+#   c.writePDFfile("strokefill")
+#   c.writeSVGfile("strokefill")
+
+using PyX
+
+c = canvas.canvas()
+stroke(c, path.rect(0, 0, 1, 1),
+          [style_linewidth.Thick,
+           color_rgb.red,
+           deco.filled([color_rgb.green])])
+writeEPSfile(c, "strokefill")
+writePDFfile(c, "strokefill")
diff --git a/examples/drawing/style.jl b/examples/drawing/style.jl
new file mode 100644
index 0000000..3a8c105
--- /dev/null
+++ b/examples/drawing/style.jl
@@ -0,0 +1,29 @@
+# Original Python:
+#   from pyx import *
+
+#   c = canvas.canvas()
+#   c.stroke(path.line(0, 0, 4, 0),
+#           [style.linewidth.THICK, style.linestyle.dashed, color.rgb.red])
+#   c.stroke(path.line(0, -1, 4, -1),
+#           [style.linewidth(0.2), style.linecap.round, color.rgb.green])
+#   c.fill(path.rect(0, -3, 4, 1), [color.rgb.blue])
+#   c.writeEPSfile("style")
+#   c.writePDFfile("style")
+#   c.writeSVGfile("style")
+
+using PyX
+
+c = canvas.canvas()
+stroke(c, path.line(0, 0, 4, 0),
+          [style_linewidth.THICK,
+           style_linestyle.dashed,
+           color_rgb.red])
+stroke(c, path.line(0, -1, 4, -1),
+          [style.linewidth(0.2),
+           style_linecap.round,
+           color_rgb.green])
+pyx_fill(c, path.rect(0, -3, 4, 1),
+        [color_rgb.blue])
+
+writeEPSfile(c, "style")
+writePDFfile(c, "style")
diff --git a/examples/drawing2d/clipping.jl b/examples/drawing2d/clipping.jl
new file mode 100644
index 0000000..e21f4bb
--- /dev/null
+++ b/examples/drawing2d/clipping.jl
@@ -0,0 +1,33 @@
+# Original Python:
+#   from pyx import *
+
+#   clippath = path.circle(0, 0, 1)
+#   drawpath = path.line(-2, -2, 1.2, 2)
+
+#   cl = canvas.canvas([canvas.clip(clippath)])
+#   cl.stroke(drawpath, [color.rgb.red, style.linewidth(1.0)])
+
+#   c = canvas.canvas()
+#   c.stroke(drawpath, [style.linewidth(1.0)])
+#   c.insert(cl)
+#   c.stroke(clippath)
+
+#   c.writeEPSfile("clipping")
+#   c.writePDFfile("clipping")
+#   c.writeSVGfile("clipping")
+
+using PyX
+
+clippath = path.circle(0, 0, 1)
+drawpath = path.line(-2, -2, 1.2, 2)
+
+cl = canvas.canvas([canvas.clip(clippath)])
+stroke(cl, drawpath, [color_rgb.red, style.linewidth(1.0)])
+
+c = canvas.canvas()
+stroke(c, drawpath, [style.linewidth(1.0)])
+pyx_insert(c, cl)
+stroke(c, clippath)
+
+writeEPSfile(c, "clipping")
+writePDFfile(c, "clipping")
diff --git a/examples/drawing2d/ellipse.jl b/examples/drawing2d/ellipse.jl
new file mode 100644
index 0000000..931ba89
--- /dev/null
+++ b/examples/drawing2d/ellipse.jl
@@ -0,0 +1,36 @@
+# Original Python:
+#   from pyx import *
+
+#   c = canvas.canvas()
+#   circ = path.circle(0, 0, 1)
+
+#   # variant 1: use trafo as a deformer
+#   c.stroke(circ, [style.linewidth.THIck, 
+#                   trafo.scale(sx=2, sy=0.9), trafo.rotate(45), trafo.translate(1, 0)])
+
+#   # variant 2: transform a subcanvas
+#   sc = canvas.canvas()
+#   sc.stroke(circ, [style.linewidth.THIck])
+#   c.insert(sc, [trafo.scale(sx=2, sy=0.9), trafo.rotate(45), trafo.translate(5, 0)])
+
+#   c.writeEPSfile("ellipse")
+#   c.writePDFfile("ellipse")
+#   c.writeSVGfile("ellipse")
+
+
+using PyX
+
+c = canvas.canvas()
+circ = path.circle(0, 0, 1)
+
+# variant 1: use trafo as a deformer
+stroke(c, circ, [style_linewidth.THIck, 
+                 trafo.scale(sx=2, sy=0.9), trafo.rotate(45), trafo.translate(1, 0)])
+
+# variant 2: transform a subcanvas
+sc = canvas.canvas()
+stroke(sc, circ, [style_linewidth.THIck])
+pyx_insert(c, sc, [trafo.scale(sx=2, sy=0.9), trafo.rotate(45), trafo.translate(5, 0)])
+
+writeEPSfile(c, "ellipse")
+writePDFfile(c, "ellipse")
diff --git a/examples/drawing2d/insert.jl b/examples/drawing2d/insert.jl
new file mode 100644
index 0000000..41bb0b9
--- /dev/null
+++ b/examples/drawing2d/insert.jl
@@ -0,0 +1,32 @@
+# Original Python:
+#   from math import sin, cos, radians
+#   from pyx import *
+
+#   angle = 10
+#   factor = 1.0 / (cos(radians(angle)) + sin(radians(angle)))
+
+#   cc = canvas.canvas()
+#   cc.stroke(path.rect(-2, -2, 4, 4))
+
+#   c = canvas.canvas()
+#   for i in range(10):
+#       c.insert(cc, [trafo.rotate(i*angle), trafo.scale(factor**i)])
+#   c.writeEPSfile("insert")
+#   c.writePDFfile("insert")
+#   c.writeSVGfile("insert")
+
+using PyX
+
+angle = 10
+factor = 1.0 / (cos(deg2rad(angle)) + sin(deg2rad(angle)))
+
+cc = canvas.canvas()
+stroke(cc, path.rect(-2, -2, 4, 4))
+
+c = canvas.canvas()
+for i in 0:9
+    pyx_insert(c, cc, [trafo.rotate(i*angle), trafo.scale(factor^i)])
+end
+
+writeEPSfile(c, "insert")
+writePDFfile(c, "insert")
diff --git a/examples/drawing2d/parallel.jl b/examples/drawing2d/parallel.jl
new file mode 100644
index 0000000..73b284a
--- /dev/null
+++ b/examples/drawing2d/parallel.jl
@@ -0,0 +1,23 @@
+# Original Python:
+#   from pyx import *
+
+#   c = canvas.canvas()
+#   p = path.line(0, 0, 2, 2)
+#   p.append(path.curveto(2, 0, 3, 0, 4, 0))
+#   c.stroke(p)
+#   c.stroke(p, [deformer.parallel(0.2), color.rgb.blue])
+#   c.stroke(p, [deformer.parallel(-0.2), color.rgb.red])
+#   c.writeEPSfile("parallel")
+#   c.writePDFfile("parallel")
+#   c.writeSVGfile("parallel")
+
+using PyX
+
+c = canvas.canvas()
+p = path.line(0, 0, 2, 2)
+pyx_append(p, path.curveto(2, 0, 3, 0, 4, 0))
+stroke(c, p)
+stroke(c, p, [deformer.parallel(0.2), color_rgb.blue])
+stroke(c, p, [deformer.parallel(-0.2), color_rgb.red])
+writeEPSfile(c, "parallel")
+writePDFfile(c, "parallel")
diff --git a/examples/drawing2d/smoothed.jl b/examples/drawing2d/smoothed.jl
new file mode 100644
index 0000000..8bce718
--- /dev/null
+++ b/examples/drawing2d/smoothed.jl
@@ -0,0 +1,23 @@
+# Original Python:
+#   from pyx import *
+
+#   c = canvas.canvas()
+#   p = path.line(0, 0, 2, 2)
+#   p.append(path.curveto(2, 0, 3, 0, 4, 0))
+#   c.stroke(p)
+#   c.stroke(p, [deformer.smoothed(1.0), color.rgb.blue])
+#   c.stroke(p, [deformer.smoothed(2.0), color.rgb.red])
+#   c.writeEPSfile("smoothed")
+#   c.writePDFfile("smoothed")
+#   c.writeSVGfile("smoothed")
+
+using PyX
+
+c = canvas.canvas()
+p = path.line(0, 0, 2, 2)
+pyx_append(p, path.curveto(2, 0, 3, 0, 4, 0))
+stroke(c, p)
+stroke(c, p, [deformer.smoothed(1.0), color_rgb.blue])
+stroke(c, p, [deformer.smoothed(2.0), color_rgb.red])
+writeEPSfile(c, "smoothed")
+writePDFfile(c, "smoothed")
diff --git a/examples/graphstyles/density.jl b/examples/graphstyles/density.jl
new file mode 100644
index 0000000..957b487
--- /dev/null
+++ b/examples/graphstyles/density.jl
@@ -0,0 +1,86 @@
+
+# Original Python:
+#   from pyx import *
+#
+#   # Mandelbrot calculation contributed by Stephen Phillips
+#
+#   # Mandelbrot parameters
+#   re_min = -2
+#   re_max = 0.5
+#   im_min = -1.25
+#   im_max = 1.25
+#   gridx = 100
+#   gridy = 100
+#   max_iter = 10
+#
+#   # Set-up
+#   re_step = (re_max - re_min) / gridx
+#   im_step = (im_max - im_min) / gridy
+#   d = []
+#
+#   # Compute fractal
+#   for re_index in range(gridx):
+#       re = re_min + re_step * (re_index + 0.5)
+#       for im_index in range(gridy):
+#           im = im_min + im_step * (im_index + 0.5)
+#           c = complex(re, im)
+#           n = 0
+#           z = complex(0, 0)
+#           while n < max_iter and abs(z) < 2:
+#               z = (z * z) + c
+#               n += 1
+#           d.append([re, im, n])
+#
+#   # Plot graph
+#   g = graph.graphxy(height=8, width=8,
+#                   x=graph.axis.linear(min=re_min, max=re_max, title=r"$\Re(c)$"),
+#                   y=graph.axis.linear(min=im_min, max=im_max, title=r'$\Im(c)$'))
+#   g.plot(graph.data.points(d, x=1, y=2, color=3, title="iterations"),
+#       [graph.style.density(gradient=color.rgbgradient.Rainbow)])
+#   g.writeEPSfile()
+#   g.writePDFfile()
+#   g.writeSVGfile()
+
+using PyX
+using LaTeXStrings
+
+# Mandelbrot parameters
+re_min = -2
+re_max = 0.5
+im_min = -1.25
+im_max = 1.25
+gridx = 100
+gridy = 100
+max_iter = 10
+
+# Set-up
+re_step = (re_max - re_min) / gridx
+im_step = (im_max - im_min) / gridy
+# Julia note: indexing is opposite of what would be idiomatic Julia
+d = zeros(gridx*gridy, 3)
+
+# Compute fractal
+for re_index in 0:(gridx-1)
+    re = re_min + re_step * (re_index + 0.5)
+    for im_index in 0:(gridy-1)
+        im = im_min + im_step * (im_index + 0.5)
+        c = complex(re, im)
+        n = 0
+        z = complex(0, 0)
+        while n < max_iter && abs(z) < 2
+            z = (z * z) + c
+            n += 1
+        end
+        d[re_index*gridy + im_index + 1, :] = [re, im, n]
+    end
+end
+
+# Plot graph
+g = graph.graphxy(height=8, width=8,
+                  x=graph_axis.linear(min=re_min, max=re_max, title=L"$\Re(c)$"),
+                  y=graph_axis.linear(min=im_min, max=im_max, title=L"$\Im(c)$"))
+plot(g, graph_data.points(d, x=1, y=2, color=3, title="iterations"),
+        [graph_style.density(gradient=color_rgbgradient.Rainbow)])
+writeEPSfile(g, "density")
+writePDFfile(g, "density")
+
diff --git a/examples/graphstyles/errorbar.dat b/examples/graphstyles/errorbar.dat
new file mode 100644
index 0000000..bd33a65
--- /dev/null
+++ b/examples/graphstyles/errorbar.dat
@@ -0,0 +1,6 @@
+1   2  0.7
+2   3  0.9
+3   8  0.8
+4  13  1.2
+5  18  1.1
+6  21  1.3
diff --git a/examples/graphstyles/errorbar.jl b/examples/graphstyles/errorbar.jl
new file mode 100644
index 0000000..94b80dc
--- /dev/null
+++ b/examples/graphstyles/errorbar.jl
@@ -0,0 +1,19 @@
+
+# Original Python:
+#   from pyx import *
+#
+#   g = graph.graphxy(width=8)
+#   g.plot(graph.data.file("errorbar.dat", x=1, y=2, dy=3),
+#       [graph.style.symbol(), graph.style.errorbar()])
+#   g.writeEPSfile("errorbar")
+#   g.writePDFfile("errorbar")
+#   g.writeSVGfile("errorbar")
+
+using PyX
+
+g = graph.graphxy(width=8)
+plot(g, graph_data.file("examples/graphstyles/errorbar.dat", x=1, y=2, dy=3),
+        [graph_style.symbol(), graph_style.errorbar()])
+writeEPSfile(g, "errorbar")
+writePDFfile(g, "errorbar")
+
diff --git a/examples/graphstyles/histogram.jl b/examples/graphstyles/histogram.jl
new file mode 100644
index 0000000..ebe35c6
--- /dev/null
+++ b/examples/graphstyles/histogram.jl
@@ -0,0 +1,29 @@
+
+# Original Python:
+#   from pyx import *
+#
+#   d = graph.data.points([(1,  0.3),
+#                       (2, -0.7),
+#                       (3, -0.3),
+#                       (4,  0.8),
+#                       (5,  0.5)], x=1, y=2)
+#
+#   g = graph.graphxy(width=8)  
+#   g.plot(d, [graph.style.histogram()])     
+#   g.writeEPSfile("histogram")
+#   g.writePDFfile("histogram")
+#   g.writeSVGfile("histogram")
+
+using PyX
+
+d = graph_data.points([(1,  0.3),
+                       (2, -0.7),
+                       (3, -0.3),
+                       (4,  0.8),
+                       (5,  0.5)], x=1, y=2)
+
+g = graph.graphxy(width=8)  
+plot(g, d, [graph_style.histogram()])     
+writeEPSfile(g, "histogram")
+writePDFfile(g, "histogram")
+
diff --git a/examples/graphstyles/usesymbol.jl b/examples/graphstyles/usesymbol.jl
new file mode 100644
index 0000000..af49f99
--- /dev/null
+++ b/examples/graphstyles/usesymbol.jl
@@ -0,0 +1,41 @@
+
+# Original Python:
+#   from pyx import *
+#
+#   # colors and symbols to use (alternatingly)
+#   colors = [color.rgb.red, color.rgb.green, color.rgb.blue, color.gray.black]
+#   symbols = [graph.style._diamondsymbol, graph.style._trianglesymbol, graph.style._circlesymbol]
+#                       
+#   # create the graph styles to be used below
+#   symbol = graph.style.symbol(symbol=attr.changelist(symbols),
+#                               symbolattrs=[deco.stroked.clear,
+#                                           attr.changelist([deco.filled([cc]) for cc in colors])])
+#   line = graph.style.line(lineattrs=[attr.changelist(colors),
+#                                   attr.changelist([style.linestyle.solid])])
+#
+#   g = graph.graphxy(width=8, x=graph.axis.linear(min=0, max=1))
+#   g.plot([graph.data.function("y(x) = x**%d" % i, points=8) for i in range(1, 7)],
+#       styles=[line, symbol])
+#   g.writeEPSfile("usesymbol")
+#   g.writePDFfile("usesymbol")
+#   g.writeSVGfile("usesymbol")
+
+using PyX
+
+# colors and symbols to use (alternatingly)
+colors = [color_rgb.red, color_rgb.green, color_rgb.blue, color_gray.black]
+symbols = [graph_style._diamondsymbol, graph_style._trianglesymbol, graph_style._circlesymbol]
+                       
+# create the graph styles to be used below
+symbol = graph_style.symbol(symbol=attr.changelist(symbols),
+                            symbolattrs=[deco_stroked.clear,
+                                         attr.changelist([deco.filled([cc]) for cc in colors])])
+line = graph_style.line(lineattrs=[attr.changelist(colors),
+                                   attr.changelist([style_linestyle.solid])])
+
+g = graph.graphxy(width=8, x=graph_axis.linear(min=0, max=1))
+plot(g, [graph_data_function("y(x) = x**$i", points=8) for i in 1:7],
+        styles=[line, symbol])
+writeEPSfile(g, "usesymbol")
+writePDFfile(g, "usesymbol")
+
diff --git a/examples/splitgraphs/minimal.jl b/examples/splitgraphs/minimal.jl
new file mode 100644
index 0000000..e0e85cf
--- /dev/null
+++ b/examples/splitgraphs/minimal.jl
@@ -0,0 +1,25 @@
+# Original Python:
+#   from pyx import *
+
+#   g = graph.graphxy(width=8, x=graph.axis.split())
+#   g.plot(graph.data.points([((0, 0.1), 0.1),
+#                           ((0, 0.5), 0.2),
+#                           ((0, 0.9), 0.3),
+#                           ((1, 101), 0.7),
+#                           ((1, 105), 0.8),
+#                           ((1, 109), 0.9)], x=1, y=2))
+#   g.writeEPSfile("minimal")
+#   g.writePDFfile("minimal")
+#   g.writeSVGfile("minimal")
+
+using PyX
+
+g = graph.graphxy(width=8, x=graph_axis.split())
+plot(g, graph_data.points([((0, 0.1), 0.1),
+                           ((0, 0.5), 0.2),
+                           ((0, 0.9), 0.3),
+                           ((1, 101), 0.7),
+                           ((1, 105), 0.8),
+                           ((1, 109), 0.9)], x=1, y=2))
+writeEPSfile(g, "minimal")
+writePDFfile(g, "minimal")
diff --git a/examples/splitgraphs/splitatvalue.jl b/examples/splitgraphs/splitatvalue.jl
new file mode 100644
index 0000000..c09d194
--- /dev/null
+++ b/examples/splitgraphs/splitatvalue.jl
@@ -0,0 +1,23 @@
+# Original Python:
+#   from pyx import *
+
+#   pf = graph.data.paramfunction
+
+#   g = graph.graphxy(width=8, x=graph.axis.split())
+#   g.plot(pf("k", -1, 1,
+#           "x, y = splitatvalue(k, -0.9, 0.9), k**100",
+#           points=1000))
+#   g.writeEPSfile("splitatvalue")
+#   g.writePDFfile("splitatvalue")
+#   g.writeSVGfile("splitatvalue")
+
+using PyX
+
+pf = graph_data.paramfunction
+
+g = graph.graphxy(width=8, x=graph_axis.split())
+plot(g, pf("k", -1, 1,
+           "x, y = splitatvalue(k, -0.9, 0.9), k**100",
+           points=1000))
+writeEPSfile(g, "splitatvalue")
+writePDFfile(g, "splitatvalue")
diff --git a/test/runtests.jl b/test/runtests.jl
index d196656..c723586 100644
--- a/test/runtests.jl
+++ b/test/runtests.jl
@@ -2,7 +2,29 @@
 include("../src/PyX.jl")
 using PyX
 
-include("../examples/3dgraphs/surface.jl")
+include("../examples/drawing/arrow.jl")
+#include("../examples/drawing/metapost.jl") # Python3 only?
+include("../examples/drawing/pathitem.jl")
+include("../examples/drawing/path.jl")
+include("../examples/drawing/strokefill.jl")
+include("../examples/drawing/style.jl")
+
+include("../examples/drawing2d/clipping.jl")
+include("../examples/drawing2d/ellipse.jl")
+include("../examples/drawing2d/insert.jl")
+include("../examples/drawing2d/parallel.jl")
+include("../examples/drawing2d/smoothed.jl")
+
+include("../examples/splitgraphs/minimal.jl")
+include("../examples/splitgraphs/splitatvalue.jl")
+
+include("../examples/bargraphs/changebar.jl")
+include("../examples/bargraphs/compare.jl")
+include("../examples/bargraphs/errors.jl")
+include("../examples/bargraphs/fromvalue.jl")
+include("../examples/bargraphs/minimal.jl")
+include("../examples/bargraphs/month.jl")
+include("../examples/bargraphs/stacked.jl")
 
 include("../examples/graphs/axis.jl")
 include("../examples/graphs/change.jl")
@@ -11,3 +33,13 @@ include("../examples/graphs/lissajous.jl")
 include("../examples/graphs/join.jl")
 include("../examples/graphs/minimal.jl")
 include("../examples/graphs/points.jl")
+
+include("../examples/graphstyles/histogram.jl")
+include("../examples/graphstyles/usesymbol.jl")
+include("../examples/graphstyles/errorbar.jl")
+include("../examples/graphstyles/density.jl")
+
+include("../examples/3dgraphs/bar.jl")
+include("../examples/3dgraphs/color.jl")
+include("../examples/3dgraphs/grid.jl")
+include("../examples/3dgraphs/surface.jl")