Re: [svg-developers] Re: SVG 2d plotting
Andreas Neumann wrote: http://plasma-gate.weizmann.ac.il/Grace/ (cannot reach the page currently - seems to be down ...) Works for me right now. I didn't knew it, I have also zeGraph and ploticus in my bookmarks. zeGraph seems more 3D oriented and I see no reference to SVG, so it won't do it. ploticus http://ploticus.sourceforge.net/doc/welcome.html is OK as it has SVG output. is one of many graphing tools that have SVG output. Should work pretty well for static grahics. If you want to develop interactive charts/diagrams I would rather program it myself. Should not be too hard using perl/php/python/Java/.net, etc. - you could display the real values on mouse over or let the user interactively scale the axes ... -- Philippe Lhoste -- (near) Paris -- France -- http://Phi.Lho.free.fr -- For servers mangling my From and Reply-To fields, -- please send private answers to PhiLho(a)GMX.net -- -- -- -- -- -- -- -- -- -- -- -- -- -- - 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: SVG 2d plotting
Hi, http://plasma-gate.weizmann.ac.il/Grace/ (cannot reach the page currently - seems to be down ...) is one of many graphing tools that have SVG output. Should work pretty well for static grahics. If you want to develop interactive charts/diagrams I would rather program it myself. Should not be too hard using perl/php/python/Java/.net, etc. - you could display the real values on mouse over or let the user interactively scale the axes ... Andreas --- In svg-developers@yahoogroups.com, jeffnoll2000 [EMAIL PROTECTED] wrote: Hello all, It's been a while since I've looked at the SVG stuff by we have a new requirement that looks like it might fit. What I'm looking to do is generate plots with various performance envelopes on them. I'm given around 50 data values with a high/low and I'm assuming I should use a path. What I can't figure out is how to get some decent curving. A quick example of the data would be gpm headhi headlow 600 300 50 610 290 52 620 280 60 630 250 70 etc. My goal is to get a performance envelope that would be smoothed along the x access points. Is there a good primer around? It's unfortunately been a few years since I've looked at this stuff and I'm being very rusty. Also, are there any good SVG templates or tools out there for creating 2d graphs? Or do I need to pretty much do the whole things from scratch, including legends, axis, etc. Thanks, - 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: SVG 2d plotting
What's confusing me is the whole curve fitting aspect of a path. I'm just not understanding what the values for say a C really mean. If I have M20,20 C80,40 70,80 80,200 does the path actually go through 80,40 and 70,80 or are those just used for influencing the curve, and if so, how does it do that. The curve you describe above goes through 20,20 and 80,200 - 80,40 and 70,80 are describing the two points that are the ends of the tangent describing the cubic spline. Think of them as the two control points that you use in drawing packages, such as Illustrator, Corel or Inkscape. http://www.w3.org/TR/SVG11/images/paths/cubic02.svg illustrates cubic splines For your purpose (smoothing a curve) the quadratic splines (just one control point) - see http://www.w3.org/TR/SVG11/images/paths/quad01.svg would probably work better. All details are in the spec: http://www.w3.org/TR/SVG11/paths.html Andreas - 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/
