--- In [email protected], Holger Will <[EMAIL PROTECTED]> wrote: > > run2bmi21 schrieb: > > > Hi, > > > > Does anyone have any hints on improving response times from ASV when > > SVG file has about 5,000 elements? The elements are simple lines > > (4,000) and circles (1,000). For every circle, there's a word or two > > of associated text, positioned just below the circle. > > > > Just wondering whether something as simple as not filling the circles > > with color (fill="none") may help ASV response times. > > > > Currently, the behavior I'm seeing on a Dell Latitude D610 laptop > > (i.e. a new laptop with average CPU) is about a 5 second delay in > > image appearance after file has completely loaded. Also, significant > > zoom and pan delays, say 3-5 seconds on a zoom, and extremely > > lethargic panning. > > > > My guess is, since line elements are the most numerous in the > > SVG, that I should concentrate on optimizing them, but they're already > > perhaps as simple as they're going to get, e.g. > > > > <line stroke="#bbbbbb" visibility="visible" id="edge1to0" x1="100" > > x2="100" y1="100" y2="2600" stroke-width="2"/> > > > > And a typical circle in the SVG looks like: > > > > <circle fill="red" fill-opacity="1.0" stroke="#bbbbbb" > > stroke-width="2" id="vertex0" cx="100" cy="2600" r="76"/> > > > > Does it take ASV a longer time to render an object positioned on the > > canvas with x,y coordinates with decimal values such as 34.56 instead > > of 34? > > > > Thanks in advance for any thoughts. > > > > Doug > > hi Doug > > have you tried shape-rendering="optimizeSpeed" ? > putting this into your <svg> Element, will cause your graphic to be > drawn without antialising. > usually this will speed up thinks significantly, at the cost of accuracy. > > hth > Holger > > p.s.: you might want to look at this fine paper by one of the main ASV > developers, which gives some hints on increasing perfomance: > http://www.svgopen.org/2002/papers/sorotokin__svg_secrets/ > > -- > if this information was usefull, please try to help someone else ! > http://www.treebuilder.de >
Thanks Holger for your thoughts. I think I read that SVG paper a long time ago but had forgotten about it. A lot of good tips in it. I did try adding the shape-rendering="optimizeSpeed" attribute to the SVG element. The initial rendering time went from 5-6 to 1-2 seconds, but the image quality really fell. I need to spend more time experimenting with Sorotokin's tips and with other hints I've received in this thread. Alas, paycheck work has intervened. Thanks again, Doug ----- To unsubscribe send a message to: [EMAIL PROTECTED] -or- visit http://groups.yahoo.com/group/svg-developers and click "edit my membership" ---- Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/svg-developers/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
