svg line graphs

BernieC has asked for the wisdom of the Perl Monks concerning the following question:

From what I can tell, svg::tt:graph::xy can only plot a single data set. Other than that it looks great :o). Is it possible to get it to do multiple datasets {each in a different color}?

I was thinking of writing my own program to do that. Doesn't seem too hard, but a bit complicated. I can see the parameters: x-range, y-range, y-title, x-title, y hash marks, x hash marks. And with that superstructure I think it'd be relatively easy to just do SVG lines from data-point to data-point but lots of messy stuff. I hit metacpan guessing that someone had done that and tt:graph:xy seems to only handle one set of data.

Am I crazy/reinventinganoldwheel to start doing something like this just using the SVG package? Is there an existing package that I missed that could handle that?

Comment on svg line graphs

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Re: svg line graphs by kcott (Archbishop) on Jan 28, 2020 at 06:49 UTC
G'day BernieC, "From what I can tell, svg::tt:graph::xy can only plot a single data set." Assuming you're actually referring to SVG::TT::Graph::XY, what are you reading that suggests it "can only plot a single data set"? I've never used this module; however, a very brief reading of its documentation showed: SYNOPSIS — example code adding two data sets. add_data() — description includes: "... It can be called several times to add more data sets in.". config methods — amongst other things, the style_sheet() subsection indicates multiple data sets with "The default stylesheet handles up to 12 data sets." and has information on using colours. If my assumption about `SVG::TT::Graph::XY` was incorrect, please provide a link to `svg::tt:graph::xy`; otherwise, I suggest you read the documentation more closely, as this module already appears to provide all the things you've indicated you want. — Ken	[reply] [d/l] [select]
Re^2: svg line graphs by BernieC (Pilgrim) on Jan 29, 2020 at 12:45 UTC
Mea Culpa. I see that now. I had skimmed through the docs on metacpan and didn't notice the subtleties -- except for the quiet mention, that you found {thanks for reading more carefully than I did} in add_data and config_methods, it kinda hid the fact of the multiple data sets. All my fault for missing it, and thanks - that looks like the perfect module for what I need.	[reply]
Re^3: svg line graphs by BernieC (Pilgrim) on Jan 29, 2020 at 16:22 UTC
Another wrinkle: `Files=5, Tests=178, 1 wallclock secs ( 0.05 usr + 0.03 sys = 0.08 C +PU) Result: FAIL Failed 1/5 test programs. 0/178 subtests failed. gmake: *** [Makefile:884: test_dynamic] Error 255 LLAP/SVG-TT-Graph-1.02.tar.gz C:\STRAWB~1\c\bin\gmake.exe test -- NOT OK //hint// to see the cpan-testers results for installing this module, t +ry: reports LLAP/SVG-TT-Graph-1.02.tar.gz Stopping: 'install' failed for 'SVG::TT::Graph::XY'.` [download] I checked on CPAN and, indeed, there were four testers who tried to get it to run on win32 and none managed it. I can't sort out the mess from cpan-install to figure out where the problem was {but I likely wouldn't be able to fix it anyway}. sigh So my quest continues, i guess. Is there another package that can do what SVG::TT::Graph::XY and works with win10/64?	[reply] [d/l]
Re^4: svg line graphs by marto (Cardinal) on Jan 29, 2020 at 16:53 UTC
Re^5: svg line graphs by BernieC (Pilgrim) on Jan 29, 2020 at 17:44 UTC
Some notes below your chosen depth have not been shown here
Re: svg line graphs by 1nickt (Canon) on Jan 27, 2020 at 22:34 UTC
Hi, I'm not sure from your question whether you are asking for something related to Template Toolkit .... but I use Chart::Clicker all the time to do graphs with multiple data sets. (I use Cairo back end fwiw.) The way forward always starts with a minimal test.	[reply]