Hey Volker, you're absolutely right. Sorry for the confusion. Canvas has fast initial rendering, but is slow when visual changes are applied to a few features, because the whole viewport needs to be redrawn.
Andreas. On Wed, May 2, 2012 at 9:57 AM, Volker Mische <[email protected]> wrote: > Hi Andreas, > > > I'm not quite sure I understand you comment about the Canvas rendering > speed (too many "not"s :). > > On 04/30/2012 07:04 PM, Andreas Hocevar wrote: >> SVG2 is deprecated and no longer maintained. Canvas is initially fast >> for rendering many vertices, but it is not good if you don't do many >> interactive symbolizer changes (e.g. feature selection with visual >> feedback) on layers with tons of features, because it has to redraw >> the whole viewport for every such change. SVG supports a few more >> symbolizer properties than Canvas, but Canvas is catching up. > > Shouldn't it read "but it is not good if you *do* many interactive > symbolizer changes" > > Cheers, > Volker > >> On Sun, Apr 29, 2012 at 11:39 PM, Phil Scadden <[email protected]> wrote: >>> I recently found there was issue on the 180 line with the SVG renderer >>> but Canvas and SVG2 were okay. What is the preferred renderer choices? >>> What are the pros and cons of each? >>> -- >>> Phil Scadden, GNS Science Ltd 764 Cumberland St, Private Bag 1930, >>> Dunedin, New Zealand Ph +64 3 4799663, fax +64 3 477 5232 >>> >>> Notice: This email and any attachments are confidential. If received in >>> error please destroy and immediately notify us. Do not copy or disclose the >>> contents. >>> >>> _______________________________________________ >>> Users mailing list >>> [email protected] >>> http://lists.osgeo.org/mailman/listinfo/openlayers-users >> >> >> > -- Andreas Hocevar OpenGeo - http://opengeo.org/ Expert service straight from the developers. _______________________________________________ Users mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/openlayers-users
