Re: Zoom peculiarities

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

On Fri, 14 May 2004, Hans-Bernhard Broeker wrote:

> 	set yrange [35.5:*]
> 	load 'using.dem'
> 	# break after the first plot.
> 
> You'll find the impulses end at 35 instead of 35.5, which is below the
> bottom border.  Looks like they were auto-extended to the nearest tick
> position, like autoscaled ranges.  This has to be investigated at 
> source level.

I've looked into this, and found the problem.  It's not actually the
baseline that got mistreated, but the points themselves.  It was using an
int to hold the y value of the datapoint before clipping it to the range
boundaries.  As soon as they're non-integer values, like the ones you'll
almost invariably generate in mouse interaction, this breaks
spectacularly.

Fixed in CVS as I write this.

-- 
Hans-Bernhard Broeker (br...@ph...)
Even if all the snow were burnt, ashes would remain.