User:Andre Castro/python-svg

Experimenting with animation through svg and python

svg animation: bars rotating in a wave

import random
print """<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<!-- Created with Inkscape (http://www.inkscape.org/) -->

<svg
   xmlns:dc="http://purl.org/dc/elements/1.1/"
   xmlns:cc="http://creativecommons.org/ns#"
   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
   xmlns:svg="http://www.w3.org/2000/svg"
   xmlns="http://www.w3.org/2000/svg"
   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
  
   id="svg3617"
   version="1.1"
   inkscape:version="0.48.1 r9760"
   sodipodi:docname="2figures-ink.svg">
  <defs
     id="defs3619" />
  <sodipodi:namedview
     id="base"
     pagecolor="#ffffff"
     bordercolor="#666666"
     borderopacity="1.0"
     inkscape:pageopacity="0.0"
     inkscape:pageshadow="2"
     inkscape:zoom="0.35"
     inkscape:cx="416.74161"
     inkscape:cy="862.85714"
     inkscape:document-units="px"
     inkscape:current-layer="layer4"
     showgrid="false"
     inkscape:window-width="964"
     inkscape:window-height="581"
     inkscape:window-x="58"
     inkscape:window-y="0"
     inkscape:window-maximized="1"
     showborder="false"
     inkscape:showpageshadow="false" />
  <metadata
     id="metadata3622">
    <rdf:RDF>
      <cc:Work
         rdf:about="">
        <dc:format>image/svg+xml</dc:format>
        <dc:type
           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
        <dc:title></dc:title>
      </cc:Work>
    </rdf:RDF>
  </metadata>
  <g
     inkscape:label="Layer 1"
     inkscape:groupmode="layer"
     id="layer1">"""

rect = """<rect
       style="fill:#000000;fill-opacity:1;stroke:#000000;stroke-width:5;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none"
       id="rect3625"
       width="{0}"
       height="10"	
       x="{1}"
       y="{2}" >
<animateTransform attributeName="transform" begin="1" dur="{5}" type="rotate" from="360 {3} {4}" to="0 {3} {4}" repeatCount="indefinite" id="animateTransform8537" />
</rect>
"""

r=range(40)
length = len(r)
for x in r:
    x_offset=0
    overlap = 10
    width = 40+overlap
    list_times = [1, 1+x, length-x, random.randint(1,length)]
    dur_inc = 1 + x + float(0.5)
    print rect.format(width, (x_offset +(x * width)), 200, (x_offset +(x * width)), 200, dur_inc ) 

#how can the rectangles rotate around their center????
print """</g>
</svg>"""

++++++++++++++++++++++++++++++++++++++++++++++++++

Examples - python + svg [1]