Re: General bug - No out of bounds checking on 3D coordinates

[Daniel J S. <dan...@ie...>]

Ethan Merritt wrote:

>Is everyone OK with the idea "if a label is out of bounds don't 
>try to draw it at all"?
>

Not totally.  It would be nice that if a partial text string were 
supposed to show it would.  I would say that if you pin this down as the 
actual problem and it seems that there is no easy solution, then OK.  If 
it seems like it is the PDF utilities fault, then it should be fixed 
there by someone else.

>   This would be change, as right now some
>drivers will draw the piece of the label that is in-bounds even though
>the label coordinates themselves are out of bounds.
>

This would be preferred, I think.

A few things about the datastrings.dem, because I'm not sure my 
observations agree with the problem you are describing.  First, the demo 
looks nice.  I notice that the 3D case for X11 clips off the bottom 
three labels.  I notice that the PostScript output file shows the bottom 
three.  I notice that inside the 'test.ps' file the bottom three labels 
(the ones that X11 truncates) have negative y positions associated with 
them.  (So, is PostScript expanding the screen to include everything?) 
 I notice that ps2pdf on 'test.ps' produces a 'test.pdf' that works fine 
in Acroread.  (Does that imply that translating negative numbers for PDF 
may not really pose a problem?)  I notice in both X11 and PostScript 
that the labels at the very bottom and very top do not have red lines 
drawn to them.  Is gnuplot treating the "extent" of the plot to the 
portion inside the labels, and anything beyond that is clipped?  I would 
say that the clipping should be part of the visible plot *or* the 
"plotting region" plot, but not a combination of both as is the case 
with the labels being visible at the outer regions but not the red lines.

Dan