Tkinter canvas to SVG exporter

This module provides function convert that convert all or selected items placed on given canvas object.

Supported items:

lines
lines with arrows
polygons
smoothed lines and polygons
ovals (i.e. circle & ellipse)
arcs (all kind, i.e. ARC, CHORD, PIESLICE)
rectangles
text (unwrapped only i.e. attribute width = 0)

Unsupported items:

images
bitmaps
windows

Stipples are not applied.

Public functions

`convert(document, canvas, items=None, tounicode=None)`

document --- SVG document, object that support DOM, i.e. provides createElement method etc. (function SVGdocument can be used to get such object)
canvas --- Tkinter.Canvas object
items --- list of objects to convert; if None then all items are converted
tounicode --- user function that should return proper unicode string if Tkinter app use other then ASCII encoding. By default tounicode = lambda text: unicode(text).encode('utf-8'). Thanks to Jan Böcker who provided solution.

`SVGdocument`

Takes no arguments, returns SVG document; class provided in standard xml.dom.minidom module is used.

`saveall(filename, canvas, items=None, margin=10, tounicode=None)`

Helper function: saves whole canvas or selected items in SVG file, sets proper dimensions, and viewport; additional margin can be set.

`warnings(mode)`

Module might emit warnings. By default it use custom function which prints message on the standard error. You can change this by calling method canvasvg.warnings(mode) with three possible values:

canvasvg.PYTHON --- use warn from the standard module warnings;
canvasvg.MODULE --- use the custom function;
canvasvg.NONE --- do not print any message.

`configure(*flags)`

Module might use either <path> or <line> tag for segment representation. By default it uses <line>. The behaviour could be changed globally by calling canvasvg.configure(*flags) with one of consequent values:

canvasvg.SEGMENT_TO_LINE --- use <line> tag;
canvasvg.SEGMENT_TO_PATH --- use <path> tag.

Changelog

Below are major changes made before moving on Github.

2013-07-23 --- support for "raw" smoothed lines (contributed by Marc Culler, author of plink)
2011-02-20 --- python3 compatibility
2011-01-25 --- update saveall: use list of items to export
2008-11-08 --- added tounicode, optional argument
2006-12-01 --- initial release

WojciechMula / canvas2svg