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Viewing phylogenies on the web: Javascript conversion of Newick tree to SVG

Quick test of an idea I'm playing with. By embedding a Newick-format tree description in HTML and adding some Javascript I can go from this:
<div class="newick" data-drawing-type="circlephylogram">((((((((219923430:0.046474,219923429:0.009145):0.037428,219923426:0.038397):0.015434,(219923419:0.022612,219923420:0.015561):0.050529):0.004828,(207366059:0.020922,207366058:0.016958):0.038734):0.003901,219923422:0.072942):0.005414,((219923443:0.038239,219923444:0.025617):0.037592,(219923423:0.056081,219923421:0.055808):0.003788):0.009743):0.001299,(219923469:0.072965,125629132:0.044638):0.012516):0.011647,(((((219923464:0.069894,((((((125628927:0.021470,219923456:0.021406):0.003083,219923455:0.021625):0.029147,219923428:0.042785):0.001234,225685777:0.037478):0.016027,((((56549933:0.003265,219923453:-0.000859):0.015462,150371743:0.009558):0.004969,219923452:0.014401):0.024398,((((((150371732:0.001735,((150371733:0,150371736:0):6.195e-05,150371735:-6.195e-05):7.410e-05):0.000580,150371734:0.001196):0.000767,(150371737:0.001274,(150371738:0,150371740:0):0.000551):0.000498):0.000905,70608555:0.003205):0.004807,150371741:0.010751):8.979e-05,150371739:0.006647):0.022090):0.012809):0.011838,219923427:0.057366):0.009364):0.004238,((219923450:0.022699,125628925:0.012519):0.048088,219923466:0.046514):0.003608):0.007025,((56549930:0.067920,219923440:0.059754):0.002384,((219923438:0.044329,219923439:0.038470):0.014514,(219923442:0.038021,(((207366060:0,207366061:0):0.001859,125628920:0.001806):0.024716,((((125628921:0.005610,207366057:0.003531):0.001354,(207366055:0.003311,207366056:0.002174):0.003225):0.011836,207366062:0.019303):0.003741,((((((207366047:0,207366048:0):0,207366049:0):0.001563,207366050:0.000272):0.002214,(207366051:0.000818,125628919:0.001017):0.000675):0.003916,207366054:0.007924):0.004138,((219923441:0.000975,207366052:-0.000975):0.000494,207366053:-0.000494):0.012373):0.010040):0.003349):0.017594):0.011029):-0.003134):0.011235):0.004149,((((219923435:0.064354,219923424:0.067340):0.002972,219923454:0.045087):0.002092,((219923460:0.027282,219923465:0.025756):0.031269,(219923462:0.017555,219923425:-0.009591):0.047358):0.006198):0.004242,(((219923463:0.031885,(219923459:0.000452,219923458:-0.000452):0.029292):0.005200,225685776:0.024691):0.020131,219923461:0.042563):0.004673):0.009128):0.001452,((56549934:0.088142,56549929:0.066475):0.004212,(219923437:0.048313,219923436:0.044997):0.014553):0.008927):0);</div>
...to this (you will need an SVG-capable browser to see anything). The Javascript parses the Newick tree, generates SVG, then replaces the Newick tree in the HTML with the corresponding picture. No need for server-side graphics, the diagram is generated by your web browser based on the Newick tree description.
((((((((219923430:0.046474,219923429:0.009145):0.037428,219923426:0.038397):0.015434,(219923419:0.022612,219923420:0.015561):0.050529):0.004828,(207366059:0.020922,207366058:0.016958):0.038734):0.003901,219923422:0.072942):0.005414,((219923443:0.038239,219923444:0.025617):0.037592,(219923423:0.056081,219923421:0.055808):0.003788):0.009743):0.001299,(219923469:0.072965,125629132:0.044638):0.012516):0.011647,(((((219923464:0.069894,((((((125628927:0.021470,219923456:0.021406):0.003083,219923455:0.021625):0.029147,219923428:0.042785):0.001234,225685777:0.037478):0.016027,((((56549933:0.003265,219923453:-0.000859):0.015462,150371743:0.009558):0.004969,219923452:0.014401):0.024398,((((((150371732:0.001735,((150371733:0,150371736:0):6.195e-05,150371735:-6.195e-05):7.410e-05):0.000580,150371734:0.001196):0.000767,(150371737:0.001274,(150371738:0,150371740:0):0.000551):0.000498):0.000905,70608555:0.003205):0.004807,150371741:0.010751):8.979e-05,150371739:0.006647):0.022090):0.012809):0.011838,219923427:0.057366):0.009364):0.004238,((219923450:0.022699,125628925:0.012519):0.048088,219923466:0.046514):0.003608):0.007025,((56549930:0.067920,219923440:0.059754):0.002384,((219923438:0.044329,219923439:0.038470):0.014514,(219923442:0.038021,(((207366060:0,207366061:0):0.001859,125628920:0.001806):0.024716,((((125628921:0.005610,207366057:0.003531):0.001354,(207366055:0.003311,207366056:0.002174):0.003225):0.011836,207366062:0.019303):0.003741,((((((207366047:0,207366048:0):0,207366049:0):0.001563,207366050:0.000272):0.002214,(207366051:0.000818,125628919:0.001017):0.000675):0.003916,207366054:0.007924):0.004138,((219923441:0.000975,207366052:-0.000975):0.000494,207366053:-0.000494):0.012373):0.010040):0.003349):0.017594):0.011029):-0.003134):0.011235):0.004149,((((219923435:0.064354,219923424:0.067340):0.002972,219923454:0.045087):0.002092,((219923460:0.027282,219923465:0.025756):0.031269,(219923462:0.017555,219923425:-0.009591):0.047358):0.006198):0.004242,(((219923463:0.031885,(219923459:0.000452,219923458:-0.000452):0.029292):0.005200,225685776:0.024691):0.020131,219923461:0.042563):0.004673):0.009128):0.001452,((56549934:0.088142,56549929:0.066475):0.004212,(219923437:0.048313,219923436:0.044997):0.014553):0.008927):0);
Here's the same tree as a phylogram:
((((((((219923430:0.046474,219923429:0.009145):0.037428,219923426:0.038397):0.015434,(219923419:0.022612,219923420:0.015561):0.050529):0.004828,(207366059:0.020922,207366058:0.016958):0.038734):0.003901,219923422:0.072942):0.005414,((219923443:0.038239,219923444:0.025617):0.037592,(219923423:0.056081,219923421:0.055808):0.003788):0.009743):0.001299,(219923469:0.072965,125629132:0.044638):0.012516):0.011647,(((((219923464:0.069894,((((((125628927:0.021470,219923456:0.021406):0.003083,219923455:0.021625):0.029147,219923428:0.042785):0.001234,225685777:0.037478):0.016027,((((56549933:0.003265,219923453:-0.000859):0.015462,150371743:0.009558):0.004969,219923452:0.014401):0.024398,((((((150371732:0.001735,((150371733:0,150371736:0):6.195e-05,150371735:-6.195e-05):7.410e-05):0.000580,150371734:0.001196):0.000767,(150371737:0.001274,(150371738:0,150371740:0):0.000551):0.000498):0.000905,70608555:0.003205):0.004807,150371741:0.010751):8.979e-05,150371739:0.006647):0.022090):0.012809):0.011838,219923427:0.057366):0.009364):0.004238,((219923450:0.022699,125628925:0.012519):0.048088,219923466:0.046514):0.003608):0.007025,((56549930:0.067920,219923440:0.059754):0.002384,((219923438:0.044329,219923439:0.038470):0.014514,(219923442:0.038021,(((207366060:0,207366061:0):0.001859,125628920:0.001806):0.024716,((((125628921:0.005610,207366057:0.003531):0.001354,(207366055:0.003311,207366056:0.002174):0.003225):0.011836,207366062:0.019303):0.003741,((((((207366047:0,207366048:0):0,207366049:0):0.001563,207366050:0.000272):0.002214,(207366051:0.000818,125628919:0.001017):0.000675):0.003916,207366054:0.007924):0.004138,((219923441:0.000975,207366052:-0.000975):0.000494,207366053:-0.000494):0.012373):0.010040):0.003349):0.017594):0.011029):-0.003134):0.011235):0.004149,((((219923435:0.064354,219923424:0.067340):0.002972,219923454:0.045087):0.002092,((219923460:0.027282,219923465:0.025756):0.031269,(219923462:0.017555,219923425:-0.009591):0.047358):0.006198):0.004242,(((219923463:0.031885,(219923459:0.000452,219923458:-0.000452):0.029292):0.005200,225685776:0.024691):0.020131,219923461:0.042563):0.004673):0.009128):0.001452,((56549934:0.088142,56549929:0.066475):0.004212,(219923437:0.048313,219923436:0.044997):0.014553):0.008927):0);