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Save Tkinter Canvas in SVG file

Project Description

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
Release History

Release History

This version
History Node

1.0.5

History Node

1.0.4

History Node

1.0.3

History Node

1.0.0

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File Name & Checksum SHA256 Checksum Help Version File Type Upload Date
canvasvg-1.0.5.tar.gz (11.6 kB) Copy SHA256 Checksum SHA256 Source Feb 16, 2017

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