Re: Bug in 5.4.rc2
Dima Kogan <[email protected]>
| Newsgroups | gmane.comp.graphics.gnuplot.devel |
|---|---|
| Message-ID | <[email protected]> |
Ethan A Merritt <[email protected]> writes: > On Friday, 26 June 2020 02:21:58 PDT Dima Kogan wrote: >> Ethan A Merritt <[email protected]> writes: >> >> > Sounds like your plot wants to use "with ellipses". >> >> OK, I'm using ellipses now. It does what I want. I just hit a corner >> case, however that did a surprising thing. The corner case is this: >> >> plot '-' notitle with ellipses >> 0 0 0 0 >> >> <snip> >> >> Thus here I would expect nothing >> drawn, or maybe just a single dot drawn. Instead it draws an ellipse of >> some arbitrary size, independent of the zoom level: it's an abstract >> symbol. > > I can see why you would expect the size to go to zero or a dot if > the axis length values reach 0. That would be reasonable, but currently > it interprets that as a request to use the default properties set by > set style ellipse ... > which also seem reasonable. Did it do something else? > >> Proposal: ellipses with axis lengths >= 0 are not abstract symbols, and >> are drawn as the data dictates. axis lengths < 0 may be rendered as >> symbols. >> >> Reasonable? > > Currently the code uses the absolute value of the axis lengths, > so negative values have no special meaning. Right. But that's an implementation detail. The data could potentially contain size-0 ellipses, and they should be drawn as size-0 ellipses. If we really want to have a mode where the default properties are used instead, they should be accessed with size<0. But I don't actually think that's useful: if the user is specifying an ellipse size, we should use it. Want a patch? _______________________________________________ gnuplot-beta mailing list [email protected] Membership management via: https://lists.sourceforge.net/lists/listinfo/gnuplot-beta