[svg-developers] Re: Performance question
Hi Julie, can you post an example to see how you structured the file? Also which SVG viewer did you try? Also on which OS did you try, with how much memory and CPU power available? But it might well be that 36000 circles are too much for the current SVG viewers. The currently existing viewers (ASV, Batik, MozillaSVG) are not capable of handling huge amounts of data. Although most of them work on improving the performance. Renesis (the upcoming SVG viewer to be released later this year or beginning of next year) claims to be much better, performance like. --- The other question is: do you really need 36000 circles? Without seeing the file/project I am guessing that one could perhaps aggregate things, or load chunks of the file doing network calls. In cartography, we usually aggregate elements, part of the generalization process. No human is actually capable to correctly perceive 36000 elements on a single screen at once. If your canvas is huge, you might just want to render the currently visible elements. Andreas --- In svg-developers@yahoogroups.com, jgfa92004 [EMAIL PROTECTED] wrote: Hi all, I have a svg file containing 36000 circles : is it normal that it takes about 5 minutes to display/open ? Is there a way to make this more efficient ? Thanks. Julie Yahoo! Groups Sponsor ~-- Most low income households are not online. Help bridge the digital divide today! http://us.click.yahoo.com/cd_AJB/QnQLAA/TtwFAA/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/
[svg-developers] Re: Performance question
jgfa92004 [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] I have a svg file containing 36000 circles That's a lot of circles! on a 1024x768 they'd all have to have a radius of 2 pixels so you could see them all, at 2px radius, there's no way you could see they are circles. Do you really, really need that many? : is it normal that it takes about 5 minutes to display/open ? Is there a way to make this more efficient ? Reducing the number of elements always helps, are you sure you need that many? Jim. Yahoo! Groups Sponsor ~-- Get Bzzzy! (real tools to help you find a job). Welcome to the Sweet Life. http://us.click.yahoo.com/A77XvD/vlQLAA/TtwFAA/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/
RE: [svg-developers] Re: Performance question
Thanks for your quick answer. In my svg file, I have first a javascript section that contains an array that have the same nb of lines (36000) Then here is a part of my svg file section where circles are drawn : svg x=5 y=5 width=600px height=550px viewBox=-98726 -98726 1238168 1134010 g rect x=-98726 y=-98726 width=1238168 height=1134010 style=stroke:black; stroke-width:1031; fill:black/ g image id=image xlink:href=image.gif x=-98726 y=-98726 width=1238168 height=1134010 style=visibility:visible;/ g id=Symboles style=stroke:none; stroke-width:1031 onmouseover=mousover(evt); onmouseout=mousout(evt); circle id=symb0 cx=537169.48 cy=4524.21 r=35127.501810942 style=fill:rgb(152,358,0)/ circle id=symb1 cx=474671.64 cy=182166.81 r=32215.4700637596 style=fill:rgb(58,452,0)/ circle id=symb2 cx=696750.44 cy=769029.75 r=29526.822949676 style=fill:rgb(295,215,0)/ circle id=symb3 cx=653162.5 cy=511552.63 r=27364.2687989864 style=fill:rgb(307,203,0)/ circle id=symb4 cx=471007.34 cy=0 r=26407.6201989595 style=fill:rgb(138,372,0)/ circle id=symb5 cx=467575.06 cy=183184.15 r=26155.1226014087 style=fill:rgb(226,284,0)/ circle id=symb6 cx=484623.01 cy=175353.69 r=25894.6173775417 style=fill:rgb(118,392,0)/ circle id=symb7 cx=437859.34 cy=186683.17 r=25405.8633691262 style=fill:rgb(265,245,0)/ circle id=symb8 cx=243907.63 cy=626090.12 r=24624.8970883142 style=fill:rgb(367,143,0)/ circle id=symb9 cx=379548.22 cy=92507.34 r=24440.4508132736 style=fill:rgb(168,342,0)/ circle id=symb10 cx=483975.64 cy=190959.26 r=24342.4206115673 style=fill:rgb(154,356,0)/ ... /g /g /g /svg I use the Adobe SVG viewer on IE6, on Windows XP, 2.6 GHz and 1Go RAM. And I do need to display those 36000 circles : the eye can't see them individually but can have a global view which I don't want to reduce... Thanks again for your help Julie Andreas Neumann [EMAIL PROTECTED] a écrit : Hi Julie, can you post an example to see how you structured the file? Also which SVG viewer did you try? Also on which OS did you try, with how much memory and CPU power available? But it might well be that 36000 circles are too much for the current SVG viewers. The currently existing viewers (ASV, Batik, MozillaSVG) are not capable of handling huge amounts of data. Although most of them work on improving the performance. Renesis (the upcoming SVG viewer to be released later this year or beginning of next year) claims to be much better, performance like. --- The other question is: do you really need 36000 circles? Without seeing the file/project I am guessing that one could perhaps aggregate things, or load chunks of the file doing network calls. In cartography, we usually aggregate elements, part of the generalization process. No human is actually capable to correctly perceive 36000 elements on a single screen at once. If your canvas is huge, you might just want to render the currently visible elements. Andreas --- In svg-developers@yahoogroups.com, jgfa92004 [EMAIL PROTECTED] wrote: Hi all, I have a svg file containing 36000 circles : is it normal that it takes about 5 minutes to display/open ? Is there a way to make this more efficient ? Thanks. Julie - 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 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. - - Appel audio GRATUIT partout dans le monde avec le nouveau Yahoo! Messenger Téléchargez le ici ! [Non-text portions of this message have been removed] Yahoo! Groups Sponsor ~-- Get Bzzzy! (real tools to help you find a job). Welcome to the Sweet Life. http://us.click.yahoo.com/A77XvD/vlQLAA/TtwFAA/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/
Re: [svg-developers] Re: Performance question
hi julie, there is no real workaround. (trop c'est trop.) some possibilities although: - switch of anti-aliasing - try to render rectangles rather than circles. if they are that small that won't make any difference. i did some tests a year ago with randomly generated basic shapes. in order to render 5000 rects, ASV3/IE takes ~4sec. the same 5000 with circles takes ~18sec. but you wont be happy with your 36000 items anyway. 2 rects - ~12sec, 5000 rects ~25sec. (test were done on the same machine, an old PIII 750mhz, but the on a newer machine, the differences stay. - what's the monster image.gif in there. btw. GIF is not to be supported by viewers according to the specification - pregenerate your files and hardcode your circles. the generation precess itself takes time to. if you really need this, build your svg fragment with ALL cricles and append it once to the dom instead of appending each circle. a+ andré -- ___ andre m. winter, cartography for internet and multimedia applications schiessstand 4/1, a6091 goetzens, tyrol, austria tel.: ++43.5234.32732 email: [EMAIL PROTECTED] http://www.vectoreal.com/ SVG consulting and development http://www.carto.net/ online cartography focusing on SVG http://www.carto.at/ print and online touristic map solutions julie gautier wrote: Thanks for your quick answer. In my svg file, I have first a javascript section that contains an array that have the same nb of lines (36000) Then here is a part of my svg file section where circles are drawn : svg x=5 y=5 width=600px height=550px viewBox=-98726 -98726 1238168 1134010 g rect x=-98726 y=-98726 width=1238168 height=1134010 style=stroke:black; stroke-width:1031; fill:black/ g image id=image xlink:href=image.gif x=-98726 y=-98726 width=1238168 height=1134010 style=visibility:visible;/ g id=Symboles style=stroke:none; stroke-width:1031 onmouseover=mousover(evt); onmouseout=mousout(evt); circle id=symb0 cx=537169.48 cy=4524.21 r=35127.501810942 style=fill:rgb(152,358,0)/ circle id=symb1 cx=474671.64 cy=182166.81 r=32215.4700637596 style=fill:rgb(58,452,0)/ circle id=symb2 cx=696750.44 cy=769029.75 r=29526.822949676 style=fill:rgb(295,215,0)/ circle id=symb3 cx=653162.5 cy=511552.63 r=27364.2687989864 style=fill:rgb(307,203,0)/ circle id=symb4 cx=471007.34 cy=0 r=26407.6201989595 style=fill:rgb(138,372,0)/ circle id=symb5 cx=467575.06 cy=183184.15 r=26155.1226014087 style=fill:rgb(226,284,0)/ circle id=symb6 cx=484623.01 cy=175353.69 r=25894.6173775417 style=fill:rgb(118,392,0)/ circle id=symb7 cx=437859.34 cy=186683.17 r=25405.8633691262 style=fill:rgb(265,245,0)/ circle id=symb8 cx=243907.63 cy=626090.12 r=24624.8970883142 style=fill:rgb(367,143,0)/ circle id=symb9 cx=379548.22 cy=92507.34 r=24440.4508132736 style=fill:rgb(168,342,0)/ circle id=symb10 cx=483975.64 cy=190959.26 r=24342.4206115673 style=fill:rgb(154,356,0)/ ... /g /g /g /svg I use the Adobe SVG viewer on IE6, on Windows XP, 2.6 GHz and 1Go RAM. And I do need to display those 36000 circles : the eye can't see them individually but can have a global view which I don't want to reduce... Thanks again for your help Julie Yahoo! Groups Sponsor ~-- Get Bzzzy! (real tools to help you find a job). Welcome to the Sweet Life. http://us.click.yahoo.com/A77XvD/vlQLAA/TtwFAA/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/
Re: [svg-developers] Re: Performance question
What do you mean by switch of anti-aliasing ? Concerning your suggestion of create rectangles instead of circles, why not... I'll test it. I don't understand neither your last suggestion. What I do is to generate the file using Batik, so each circle is written inside a loop (creating the circle element and append it to the svgDocument)... Could you explain more your advide to build your svg fragment with ALL cricles and append it once to the dom instead of appending each circle. ? Thanks a lot. Julie Andre M. Winter - Carto.net [EMAIL PROTECTED] a écrit : hi julie, there is no real workaround. (trop c'est trop.) some possibilities although: - switch of anti-aliasing - try to render rectangles rather than circles. if they are that small that won't make any difference. i did some tests a year ago with randomly generated basic shapes. in order to render 5000 rects, ASV3/IE takes ~4sec. the same 5000 with circles takes ~18sec. but you wont be happy with your 36000 items anyway. 2 rects - ~12sec, 5000 rects ~25sec. (test were done on the same machine, an old PIII 750mhz, but the on a newer machine, the differences stay. - what's the monster image.gif in there. btw. GIF is not to be supported by viewers according to the specification - pregenerate your files and hardcode your circles. the generation precess itself takes time to. if you really need this, build your svg fragment with ALL cricles and append it once to the dom instead of appending each circle. a+ andré -- ___ andre m. winter, cartography for internet and multimedia applications schiessstand 4/1, a6091 goetzens, tyrol, austria tel.: ++43.5234.32732 email: [EMAIL PROTECTED] http://www.vectoreal.com/ SVG consulting and development http://www.carto.net/ online cartography focusing on SVG http://www.carto.at/ print and online touristic map solutions julie gautier wrote: Thanks for your quick answer. In my svg file, I have first a javascript section that contains an array that have the same nb of lines (36000) Then here is a part of my svg file section where circles are drawn : svg x=5 y=5 width=600px height=550px viewBox=-98726 -98726 1238168 1134010 g rect x=-98726 y=-98726 width=1238168 height=1134010 style=stroke:black; stroke-width:1031; fill:black/ g image id=image xlink:href=image.gif x=-98726 y=-98726 width=1238168 height=1134010 style=visibility:visible;/ g id=Symboles style=stroke:none; stroke-width:1031 onmouseover=mousover(evt); onmouseout=mousout(evt); circle id=symb0 cx=537169.48 cy=4524.21 r=35127.501810942 style=fill:rgb(152,358,0)/ circle id=symb1 cx=474671.64 cy=182166.81 r=32215.4700637596 style=fill:rgb(58,452,0)/ circle id=symb2 cx=696750.44 cy=769029.75 r=29526.822949676 style=fill:rgb(295,215,0)/ circle id=symb3 cx=653162.5 cy=511552.63 r=27364.2687989864 style=fill:rgb(307,203,0)/ circle id=symb4 cx=471007.34 cy=0 r=26407.6201989595 style=fill:rgb(138,372,0)/ circle id=symb5 cx=467575.06 cy=183184.15 r=26155.1226014087 style=fill:rgb(226,284,0)/ circle id=symb6 cx=484623.01 cy=175353.69 r=25894.6173775417 style=fill:rgb(118,392,0)/ circle id=symb7 cx=437859.34 cy=186683.17 r=25405.8633691262 style=fill:rgb(265,245,0)/ circle id=symb8 cx=243907.63 cy=626090.12 r=24624.8970883142 style=fill:rgb(367,143,0)/ circle id=symb9 cx=379548.22 cy=92507.34 r=24440.4508132736 style=fill:rgb(168,342,0)/ circle id=symb10 cx=483975.64 cy=190959.26 r=24342.4206115673 style=fill:rgb(154,356,0)/ ... /g /g /g /svg I use the Adobe SVG viewer on IE6, on Windows XP, 2.6 GHz and 1Go RAM. And I do need to display those 36000 circles : the eye can't see them individually but can have a global view which I don't want to reduce... Thanks again for your help Julie - 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 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. - - Appel audio GRATUIT partout dans le monde avec le nouveau Yahoo! Messenger Téléchargez le ici ! [Non-text portions of this message have been removed] Yahoo! Groups Sponsor ~-- Fair play? Video games influencing politics. Click and talk back! http://us.click.yahoo.com/T8sf5C/tzNLAA/TtwFAA/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:
Re: [svg-developers] Re: Performance question
hi julie, What do you mean by switch of anti-aliasing ? check out http://www.w3.org/TR/SVG11/painting.html#ShapeRenderingProperty ASV supports that. Concerning your suggestion of create rectangles instead of circles, why not... I'll test it. I don't understand neither your last suggestion. What I do is to generate the file using Batik, so each circle is written inside a loop (creating the circle element and append it to the svgDocument)... Could you explain more your advide to build your svg fragment with ALL cricles and append it once to the dom instead of appending each circle. ? so you already pregenerate your files, don't you? the files you view and that you find slow are static svg? then no improvement is possible here. otherwise come back and poste your code here. a+ andré -- ___ andre m. winter, cartography for internet and multimedia applications schiessstand 4/1, a6091 goetzens, tyrol, austria tel.: ++43.5234.32732 email: [EMAIL PROTECTED] http://www.vectoreal.com/ SVG consulting and development http://www.carto.net/ online cartography focusing on SVG http://www.carto.at/ print and online touristic map solutions Thanks a lot. Julie Andre M. Winter - Carto.net [EMAIL PROTECTED] a écrit : hi julie, there is no real workaround. (trop c'est trop.) some possibilities although: - switch of anti-aliasing - try to render rectangles rather than circles. if they are that small that won't make any difference. i did some tests a year ago with randomly generated basic shapes. in order to render 5000 rects, ASV3/IE takes ~4sec. the same 5000 with circles takes ~18sec. but you wont be happy with your 36000 items anyway. 2 rects - ~12sec, 5000 rects ~25sec. (test were done on the same machine, an old PIII 750mhz, but the on a newer machine, the differences stay. - what's the monster image.gif in there. btw. GIF is not to be supported by viewers according to the specification - pregenerate your files and hardcode your circles. the generation precess itself takes time to. if you really need this, build your svg fragment with ALL cricles and append it once to the dom instead of appending each circle. a+ andré Yahoo! Groups Sponsor ~-- Fair play? Video games influencing politics. Click and talk back! http://us.click.yahoo.com/T8sf5C/tzNLAA/TtwFAA/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/
[svg-developers] Re: Performance question
Hi Julie, I still don't understand if you generate the circles in the client, using Javascript or on the server. In the first case, that might be one of the reasons why it is very slow. If you generate the circles on the server, than you can as well aggregate the circles. I had a similar problem where I had to display thens of thousands of positions in a map. I ended up aggregating the elements using SQL functions in the database. Every time the user zooms and pans he would just download and see the portion of the map he navigated to. The more the user zoomed in the less the positions where aggregated. It really worked well and with no loss of quality. It makes no sense to display thousands of elements if they all overlap and just create one big soup of circles ... Otherwise you might also want to look at other technologies besides SVG. SVG does not fit everywhere. Or wait for a better SVG viewer ... or create a raster version of your SVG and send the raster to the client. Andreas --- In svg-developers@yahoogroups.com, julie gautier [EMAIL PROTECTED] wrote: Thanks for your quick answer. In my svg file, I have first a javascript section that contains an array that have the same nb of lines (36000) Then here is a part of my svg file section where circles are drawn : svg x=5 y=5 width=600px height=550px viewBox=-98726 -98726 1238168 1134010 g rect x=-98726 y=-98726 width=1238168 height=1134010 style=stroke:black; stroke-width:1031; fill:black/ g image id=image xlink:href=image.gif x=-98726 y=-98726 width=1238168 height=1134010 style=visibility:visible;/ g id=Symboles style=stroke:none; stroke-width:1031 onmouseover=mousover (evt); onmouseout=mousout(evt); circle id=symb0 cx=537169.48 cy=4524.21 r=35127.501810942 style=fill:rgb (152,358,0)/ circle id=symb1 cx=474671.64 cy=182166.81 r=32215.4700637596 style=fill:rgb(58,452,0)/ circle id=symb2 cx=696750.44 cy=769029.75 r=29526.822949676 style=fill:rgb(295,215,0)/ circle id=symb3 cx=653162.5 cy=511552.63 r=27364.2687989864 style=fill:rgb(307,203,0)/ circle id=symb4 cx=471007.34 cy=0 r=26407.6201989595 style=fill:rgb (138,372,0)/ circle id=symb5 cx=467575.06 cy=183184.15 r=26155.1226014087 style=fill:rgb(226,284,0)/ circle id=symb6 cx=484623.01 cy=175353.69 r=25894.6173775417 style=fill:rgb(118,392,0)/ circle id=symb7 cx=437859.34 cy=186683.17 r=25405.8633691262 style=fill:rgb(265,245,0)/ circle id=symb8 cx=243907.63 cy=626090.12 r=24624.8970883142 style=fill:rgb(367,143,0)/ circle id=symb9 cx=379548.22 cy=92507.34 r=24440.4508132736 style=fill:rgb(168,342,0)/ circle id=symb10 cx=483975.64 cy=190959.26 r=24342.4206115673 style=fill:rgb(154,356,0)/ ... /g /g /g /svg I use the Adobe SVG viewer on IE6, on Windows XP, 2.6 GHz and 1Go RAM. And I do need to display those 36000 circles : the eye can't see them individually but can have a global view which I don't want to reduce... Thanks again for your help Yahoo! Groups Sponsor ~-- Most low income households are not online. Help bridge the digital divide today! http://us.click.yahoo.com/cd_AJB/QnQLAA/TtwFAA/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/
RE: [svg-developers] Re: Performance question
I create the circles on the server, so when the svg is displayed, the circles are already written in the file. But what you say is important because I was wondering if it could be faster if I'd create the circles by using a javascript function when loading the document... So the response seems to be no. I'm not sure to understand what you mean by agregate... but what I'm sure is that I want to display all the circles to have a global view. And I don't use a database : users specify directly a file that contains the data. And concerning the raster version, what interest me in the svg is the interactive part I can't have in a raster document. Thanks anyway for your help and if you think to a solution, please let me know. Julie Andreas Neumann [EMAIL PROTECTED] a écrit : Hi Julie, I still don't understand if you generate the circles in the client, using Javascript or on the server. In the first case, that might be one of the reasons why it is very slow. If you generate the circles on the server, than you can as well aggregate the circles. I had a similar problem where I had to display thens of thousands of positions in a map. I ended up aggregating the elements using SQL functions in the database. Every time the user zooms and pans he would just download and see the portion of the map he navigated to. The more the user zoomed in the less the positions where aggregated. It really worked well and with no loss of quality. It makes no sense to display thousands of elements if they all overlap and just create one big soup of circles ... Otherwise you might also want to look at other technologies besides SVG. SVG does not fit everywhere. Or wait for a better SVG viewer ... or create a raster version of your SVG and send the raster to the client. Andreas --- In svg-developers@yahoogroups.com, julie gautier [EMAIL PROTECTED] wrote: Thanks for your quick answer. In my svg file, I have first a javascript section that contains an array that have the same nb of lines (36000) Then here is a part of my svg file section where circles are drawn : svg x=5 y=5 width=600px height=550px viewBox=-98726 -98726 1238168 1134010 g rect x=-98726 y=-98726 width=1238168 height=1134010 style=stroke:black; stroke-width:1031; fill:black/ g image id=image xlink:href=image.gif x=-98726 y=-98726 width=1238168 height=1134010 style=visibility:visible;/ g id=Symboles style=stroke:none; stroke-width:1031 onmouseover=mousover (evt); onmouseout=mousout(evt); circle id=symb0 cx=537169.48 cy=4524.21 r=35127.501810942 style=fill:rgb (152,358,0)/ circle id=symb1 cx=474671.64 cy=182166.81 r=32215.4700637596 style=fill:rgb(58,452,0)/ circle id=symb2 cx=696750.44 cy=769029.75 r=29526.822949676 style=fill:rgb(295,215,0)/ circle id=symb3 cx=653162.5 cy=511552.63 r=27364.2687989864 style=fill:rgb(307,203,0)/ circle id=symb4 cx=471007.34 cy=0 r=26407.6201989595 style=fill:rgb (138,372,0)/ circle id=symb5 cx=467575.06 cy=183184.15 r=26155.1226014087 style=fill:rgb(226,284,0)/ circle id=symb6 cx=484623.01 cy=175353.69 r=25894.6173775417 style=fill:rgb(118,392,0)/ circle id=symb7 cx=437859.34 cy=186683.17 r=25405.8633691262 style=fill:rgb(265,245,0)/ circle id=symb8 cx=243907.63 cy=626090.12 r=24624.8970883142 style=fill:rgb(367,143,0)/ circle id=symb9 cx=379548.22 cy=92507.34 r=24440.4508132736 style=fill:rgb(168,342,0)/ circle id=symb10 cx=483975.64 cy=190959.26 r=24342.4206115673 style=fill:rgb(154,356,0)/ ... /g /g /g /svg I use the Adobe SVG viewer on IE6, on Windows XP, 2.6 GHz and 1Go RAM. And I do need to display those 36000 circles : the eye can't see them individually but can have a global view which I don't want to reduce... Thanks again for your help - 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. - - Appel audio GRATUIT partout dans le monde avec le nouveau Yahoo! Messenger Téléchargez le ici ! [Non-text portions of this message have been removed] Yahoo! Groups Sponsor ~-- Fair play? Video games influencing politics. Click and talk back! http://us.click.yahoo.com/T8sf5C/tzNLAA/TtwFAA/1U_rlB/TM ~- - To unsubscribe send a message to: [EMAIL PROTECTED] -or- visit
[svg-developers] Re: Performance question
have you tried to load the file in Batik and see what part takes the longest? In Batik you get messages in the status line, telling when the file was loaded, when the scripts are parsed and when rendering starts. Is it the rendering that takes that long or the parsing of the file? If you use Batik, remember to give it more memory than the standard 64megs, especially with that many elements. By aggregating I mean replacing a number of circles with just one circle that maybe has a bigger radius or different colour than the single circles. In my example I had sort of a invisible raster with different mesh sizes, depending on the zoom factor. All circles that fall within one raster cell are aggregated. The new circle center gets the average of the previous positions - this way it does not look like a regular grid. I don't know if that helps in your situations. Andreas --- In svg-developers@yahoogroups.com, julie gautier [EMAIL PROTECTED] wrote: I create the circles on the server, so when the svg is displayed, the circles are already written in the file. But what you say is important because I was wondering if it could be faster if I'd create the circles by using a javascript function when loading the document... So the response seems to be no. I'm not sure to understand what you mean by agregate... but what I'm sure is that I want to display all the circles to have a global view. And I don't use a database : users specify directly a file that contains the data. And concerning the raster version, what interest me in the svg is the interactive part I can't have in a raster document. Thanks anyway for your help and if you think to a solution, please let me know. Julie Yahoo! Groups Sponsor ~-- Fair play? Video games influencing politics. Click and talk back! http://us.click.yahoo.com/T8sf5C/tzNLAA/TtwFAA/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/
