[GRASS-dev] new rendering

GRASS GIS GRASS GIS developer
1

Hi Martin,

I saw you are implementing better rendering mechanism, which is really needed. It seems faster (although I have a new computer and everything is fast now so it’s difficult to say). I know it’s work in progress, but here are some problems I encountered in case you are not aware of them:

  • legend (overlays) doesn’t show up, no error
  • dragging layers causes error
  • MapSwipe doesn’t work - due to calls layer.Render() but it requires parameter environment. There are actually several of these calls in render.py, I was not sure what to do, maybe some of them can be just removed.
  • Vector digitizer and 3D view have some issues

I will try to help as soon as I better understand the changes. Thank you!

Anna

2

Hi Anna,

2015-05-15 5:05 GMT+02:00 Anna Petrášová <kratochanna@gmail.com>:

are some problems I encountered in case you are not aware of them:

- legend (overlays) doesn't show up, no error
- dragging layers causes error
- MapSwipe doesn't work - due to calls layer.Render() but it requires
parameter environment. There are actually several of these calls in
render.py, I was not sure what to do, maybe some of them can be just
removed.
- Vector digitizer and 3D view have some issues

I will try to help as soon as I better understand the changes. Thank you!

thanks for reporting these issues. I will try to look at them ASAP
(first of all I want to fix multiple calling of `g.pnmcomp`). Then
there is also issue when re-ordering map layers in layer tree.

Martin

--
Martin Landa
http://geo.fsv.cvut.cz/gwiki/Landa
http://gismentors.cz/mentors/landa

3

2015-05-15 9:23 GMT+02:00 Martin Landa <landa.martin@gmail.com>:

- dragging layers causes error

you have apparently fixed that, thanks. Martin

--
Martin Landa
http://geo.fsv.cvut.cz/gwiki/Landa
http://gismentors.cz/mentors/landa

4

Hi,

2015-05-15 5:05 GMT+02:00 Anna Petrášová <kratochanna@gmail.com>:

- legend (overlays) doesn't show up, no error

should be fixed in r65243. Martin

--
Martin Landa
http://geo.fsv.cvut.cz/gwiki/Landa
http://gismentors.cz/mentors/landa

5

Hi,

2015-05-15 5:05 GMT+02:00 Anna Petrášová <kratochanna@gmail.com>:

- MapSwipe doesn't work - due to calls layer.Render() but it requires
parameter environment. There are actually several of these calls in
render.py, I was not sure what to do, maybe some of them can be just
removed.

attempt to fix it in r65255. There is still issue with multiple
calling g.pnmcomp. MapSwipe has also issue when starting from command
line with `first/second` parameters, map display is not correctly
updated after launching.

Martin

--
Martin Landa
http://geo.fsv.cvut.cz/gwiki/Landa
http://gismentors.cz/mentors/landa