[GRASS-dev] Rendering from command line does not respect size

Moritz Lennert mlennert at club.worldonline.be
Sat May 2 09:13:16 PDT 2015


On 01/05/15 05:24, Vaclav Petras wrote:
> Hi,
>
> I was trying to render some maps automatically but I'm having problems
> with setting the size of the image. I set size like this:
>
> export GRASS_RENDER_HEIGHT=1350
> export GRASS_RENDER_WIDTH=1500
>
> But with cairo I get still the default size:
>
> d.mon cairo
> d.rast aspect
> # map.png size is now 640x480
> d.mon stop=cairo
> rm map.png
>
> With png I get an error:
>
> d.mon png
> d.rast aspect
> ERROR: PNG: input file has incorrect dimensions: expected: 640x480 got:
>         1500x1350
> # map.png is now empty but it has the correct size
> d.mon stop=png
> rm map.png

I have a vague memory that such an error occurs when you have an 
existing map.png file in the current directory with dimensions different 
from the ones you set.

Moritz




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