Re: Clipping of arrows buggy

[Hans-Bernhard B. <br...@ph...>]

Ethan Merritt wrote:
> On Tuesday 18 January 2005 11:09 am, Harald Harders wrote:

>>The difference only appears in the 3d plots (both with and without
>>multiplot). All arrows and labels that start outside the boundaries
>>0 <= screen coordinate <= 1 are missing. Since the screen may be larger
>>using 'set size 1.4,1.4', for example, this is not okay for x>1 and y>1.

> You have a different understanding of "screen" than I do.
> "set size" does not change the screen. 

Careful there.  This depends on command ordering.

In particular, a 'set size' command issued *before* the terminal is 
opened, *will* change the screen size, on at least some terminal 
drivers.  Postscript in EPS mode is one of them, but several others are
also effected by it --- generally all drivers producing output that 
supports the notion of a physical output size (something in inches), but 
don't have a 'size'-like terminal option.  To find all ~18 of them, look 
for mentions of global variable 'xsize' in any term->graphics() 
implementation.

Getting this subtle detail confused may well be the core of the problem 
in Harald's scripts.

> Here's a radically different proposal:
> 
> The command "set size x, y" should be limited to values
> of x and y between 0 and 1.

No, for the above-mentioned reason.  To be able to allow this 
modification, we need to add a command 'set pagesize' that takes the 
role of what is now 'set size before set terminal'.