{"id":2995,"date":"2010-04-07T17:40:05","date_gmt":"2010-04-07T09:40:05","guid":{"rendered":"http:\/\/nick.onetwenty.org\/?p=2995"},"modified":"2011-03-28T22:46:00","modified_gmt":"2011-03-28T14:46:00","slug":"creating-svg-files-with-python","status":"publish","type":"post","link":"https:\/\/nick.onetwenty.org\/index.php\/2010\/04\/07\/creating-svg-files-with-python\/","title":{"rendered":"Creating SVG files with Python"},"content":{"rendered":"

It’s easy to create SVG<\/a> files using Python<\/a>. There’s no need for fancy rendering libraries<\/a>. Just use a nice XML import\/export library such as ElementTree<\/a>.<\/p>\n

\r\n# my favourite XML library\r\nfrom xml.etree import ElementTree as et\r\n\r\n# create an SVG XML element (see the SVG specification for attribute details)\r\ndoc = et.Element('svg', width='480', height='360', version='1.1', xmlns='http:\/\/www.w3.org\/2000\/svg')\r\n\r\n# add a circle (using the SubElement function)\r\net.SubElement(doc, 'circle', cx='240', cy='180', r='160', fill='rgb(255, 192, 192)')\r\n\r\n# add text (using append function)\r\ntext = et.Element('text', x='240', y='180', fill='white', style='font-family:Sans;font-size:48px;text-anchor:middle;dominant-baseline:top')\r\ntext.text = 'pink circle'\r\ndoc.append(text)\r\n\r\n# ElementTree 1.2 doesn't write the SVG file header errata, so do that manually\r\nf = open('sample.svg', 'w')\r\nf.write('\\n')\r\nf.write('\\n')\r\nf.write(et.tostring(doc))\r\nf.close()\r\n<\/pre>\nGenerates this image (.png file rendered from the output .svg):<\/p>\n<\/a><\/p>\n
Note<\/strong>: I’m using something like this to generate nice diagrams for the next Let’s Make Games report<\/a>, and figured that it may be of use to others.<\/em><\/p>\n
Update<\/strong>: Fixed typo in code (missing parentheses).<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"
It’s easy to create SVG files using Python. There’s no need for fancy rendering libraries. Just use a nice XML import\/export library such as ElementTree. This code: # my favourite XML library from xml.etree import ElementTree as et # create an SVG XML element (see the SVG specification for attribute details) doc = et.Element(‘svg’, width=’480′, … Continue reading “Creating SVG files with Python”<\/span><\/a><\/p>\n","protected":false},"author":67,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"spay_email":"","jetpack_publicize_message":"","jetpack_is_tweetstorm":false},"categories":[1],"tags":[],"jetpack_featured_media_url":"","jetpack_publicize_connections":[],"jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/paLsRH-Mj","_links":{"self":[{"href":"https:\/\/nick.onetwenty.org\/index.php\/wp-json\/wp\/v2\/posts\/2995"}],"collection":[{"href":"https:\/\/nick.onetwenty.org\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/nick.onetwenty.org\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/nick.onetwenty.org\/index.php\/wp-json\/wp\/v2\/users\/67"}],"replies":[{"embeddable":true,"href":"https:\/\/nick.onetwenty.org\/index.php\/wp-json\/wp\/v2\/comments?post=2995"}],"version-history":[{"count":9,"href":"https:\/\/nick.onetwenty.org\/index.php\/wp-json\/wp\/v2\/posts\/2995\/revisions"}],"predecessor-version":[{"id":5190,"href":"https:\/\/nick.onetwenty.org\/index.php\/wp-json\/wp\/v2\/posts\/2995\/revisions\/5190"}],"wp:attachment":[{"href":"https:\/\/nick.onetwenty.org\/index.php\/wp-json\/wp\/v2\/media?parent=2995"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nick.onetwenty.org\/index.php\/wp-json\/wp\/v2\/categories?post=2995"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nick.onetwenty.org\/index.php\/wp-json\/wp\/v2\/tags?post=2995"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}