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Re: [XForms] axes coords in XYPlot
From: |
Michal Szymanski |
Subject: |
Re: [XForms] axes coords in XYPlot |
Date: |
Fri, 20 May 2011 12:37:41 +0200 |
User-agent: |
Mutt/1.5.21 (2010-09-15) |
> Would you're requirements be satisfied with
>
> void fl_get_xyplot_plotrange( FL_OBJECT * obj,
> FL_COORD * llx,
> FL_COORD * lly,
> FL_COORD * urx,
> FL_COORD * ury );
>
> where llx and lly are the coordinates of the lower left
> hand and urx and ury those of the upper right hand corner
> (in pixels relative to the object)? The values are, just
> as you proposed, from the xi, yi, xf and yf members of
> the FLI_XYPLOT_SPEC structure.
Seems fine. If we, however, can afford adding two routines, I would vote for
void fl_get_xyplot_screen_plotrange
void fl_get_xyplot_world_plotrange
the first being exactly what you have suggested, and the latter returning
world coords (which, AFAIU, are kept as xmin,xmax,ymin,ymax members of the
structure - this may require checking).
Surely one can convert between the two but it would be easier to get them
directly. Furthermore, I actually need "world" coordinates (e.g. to plot an
overlayed full-width or full-height lines on the data) and do not
immediately see any need for the screen coords of the plot corners.
> If you are prepared to use the git repository you can
> download the new version with this function (and a few
> other bug fixes) immediately (modulo docs for the new
> function), otherwise you will have to wait until I get
> around to upload a new "pre-release" version (hopefully
> within the next few days).
Well, I can try. I have found the links and instructions on the XForms
Savannah page. BTW, the News there end on 1.0.93sp1, almost a year ago! :-(
regards, Michal.
--
Michal Szymanski (msz at astrouw dot edu dot pl)
Warsaw University Observatory, Warszawa, POLAND
- [XForms] axes coords in XYPlot, Michal Szymanski, 2011/05/18
- Re: [XForms] axes coords in XYPlot, Jens Thoms Toerring, 2011/05/19
- Re: [XForms] axes coords in XYPlot, Michal Szymanski, 2011/05/19
- Re: [XForms] axes coords in XYPlot, Jens Thoms Toerring, 2011/05/19
- Re: [XForms] axes coords in XYPlot, Michal Szymanski, 2011/05/19
- Re: [XForms] axes coords in XYPlot, Jens Thoms Toerring, 2011/05/19
- Re: [XForms] axes coords in XYPlot,
Michal Szymanski <=
- Re: [XForms] axes coords in XYPlot, Jens Thoms Toerring, 2011/05/20
- Re: [XForms] axes coords in XYPlot, Jens Thoms Toerring, 2011/05/20
- Message not available
- Re: [XForms] axes coords in XYPlot, Jens Thoms Toerring, 2011/05/20