ASV does have some issues (or at least ASV3.0 used to) with floating-point roundoff for large numbers.
This is not an SVG problem, but an implementation-specific problem. Some viewers use 16-bit numbers, some use 32-bit numbers, and you will have problems with this if your number resolution is bigger than what the browser can handle. >From the user perspective, the best thing to do is check the impact of large numbers and of high resolution numbers. I could not help but notice that the data being considered has four decimal place accuracy, of which three decimal places are zeros. Maybe some resolution management would sort out the problem on its own? Ronan On Thursday 17 November 2005 15:16, Jeroen Vanattenhoven wrote: > I've used SVG maps for Belgium which uses Lambert 72 coördinates. This > gives you coördinates of for example 172000 189000. Also pretty large. I > don't have any problems with that. I did remove all decimal numbers. > > sent1729 schreef: > > Hi all, > > > > This is the problem that I face. > > > > I am using SVG for mapping applications where I have all the maps > > referenced to big coordinates. There seem to be some rendering issue > > when I define my SVG viewbox with big coorrdinates. > > This is what I mean: I have the following SVG file where I have 8 > > line elements which are equally spaced for ex: > > > > <svg id ="ttt" x="0" y="0" width="1020" height="677" > > viewBox="711316.0000 4324160.8000 10 10"> > > > > <polyline fill="none" style="stroke-width:.05;stroke:rgb(0,0,255);" > > points="711316.0000 4324160.8000 711326.0000 4324160.8000"/> > > <polyline fill="none" style="stroke-width:.05;stroke:rgb(0,0,255);" > > points="711316.0000 4324161.8000 711326.0000 4324161.8000"/> > > <polyline fill="none" style="stroke-width:.05;stroke:rgb(0,0,255);" > > points="711316.0000 4324162.8000 711326.0000 4324162.8000"/> > > <polyline fill="none" style="stroke-width:.05;stroke:rgb(0,0,255);" > > points="711316.0000 4324163.8000 711326.0000 4324163.8000"/> > > <polyline fill="none" style="stroke-width:.05;stroke:rgb(0,0,255);" > > points="711316.0000 4324164.8000 711326.0000 4324164.8000"/> > > <polyline fill="none" style="stroke-width:.05;stroke:rgb(0,0,255);" > > points="711316.0000 4324165.8000 711326.0000 4324165.8000"/> > > <polyline fill="none" style="stroke-width:.05;stroke:rgb(0,0,255);" > > points="711316.0000 4324166.8000 711326.0000 4324166.8000"/> > > <polyline fill="none" style="stroke-width:.05;stroke:rgb(0,0,255);" > > points="711316.0000 4324167.8000 711326.0000 4324167.8000"/> > > </svg> > > > > But when what I see on the screen is completely different. I see that > > all the lines are unequally spaced. which is wrong. > > > > But if I make my viewbox coordinates small( i mean the "x" and "y" > > attribute of viewbox), then I see the same line elements equally > > spaced on the screen. For ex: > > > > <svg id ="ttt" x="0" y="0" width="1020" height="677" > > viewBox="316.0000 160.8000 10 10"> > > > > <polyline fill="none" style="stroke-width:.05;stroke:rgb(0,0,255);" > > points="316.0000 160.8000 326.0000 160.8000"/> > > <polyline fill="none" style="stroke-width:.05;stroke:rgb(0,0,255);" > > points="316.0000 161.8000 326.0000 161.8000"/> > > <polyline fill="none" style="stroke-width:.05;stroke:rgb(0,0,255);" > > points="316.0000 162.8000 326.0000 162.8000"/> > > <polyline fill="none" style="stroke-width:.05;stroke:rgb(0,0,255);" > > points="316.0000 163.8000 326.0000 163.8000"/> > > <polyline fill="none" style="stroke-width:.05;stroke:rgb(0,0,255);" > > points="316.0000 164.8000 326.0000 164.8000"/> > > <polyline fill="none" style="stroke-width:.05;stroke:rgb(0,0,255);" > > points="316.0000 165.8000 326.0000 165.8000"/> > > <polyline fill="none" style="stroke-width:.05;stroke:rgb(0,0,255);" > > points="316.0000 166.8000 326.0000 166.8000"/> > > <polyline fill="none" style="stroke-width:.05;stroke:rgb(0,0,255);" > > points="316.0000 167.8000 326.0000 167.8000"/> > > </svg> > > > > > > Why does this happen. 'am I missing something. > > > > Please help with any input. > > > > Thanks, > > Nathan > > > > > > > > > > > > > > > > ----- > > 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 > > > > > > > > > > Disclaimer: http://www.kuleuven.be/cwis/email_disclaimer.htm > > > > ----- > To unsubscribe send a message to: > [EMAIL PROTECTED] -or- > visit http://groups.yahoo.com/group/svg-developers and click "edit my > membership" ---- > > > > > SPONSORED LINKS > Computer internet security Computer internet business Computer internet > access Computer internet privacy securities Computer internet help How > to format a computer hard drive > > > YAHOO! GROUPS LINKS > > > Visit your group "svg-developers" on the web. > > To unsubscribe from this group, send an email to: > [EMAIL PROTECTED] > > Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. -- Ronan Oger [EMAIL PROTECTED] www.vectoreal.com ...for scalable solutions. ------------------------------------- Switzerland Mobile: +41 76 527 3552 Fax: +41 44 274 2402 ------------------------ Yahoo! Groups Sponsor --------------------~--> Fair play? Video games influencing politics. Click and talk back! http://us.click.yahoo.com/u8TY5A/tzNLAA/yQLSAA/1U_rlB/TM --------------------------------------------------------------------~-> ----- 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/
