I have been trying the digitizer in 6.4.2, and I am having several difficulties. I am working with a polygon map, and as a test, I am trying to create a polygon which I try split into four smaller polygons. First I divide it in half and then a divide one of the new halves in two. Afterwards, I have generated centroids for the area. I have used only the “new boundary” tool for this - and that may be wrong? But I have tried some other options without any luck.
Does anyone know how to do this? There also seems to be a problem that the map is saved even though I say no thanks. So, if you do a mistake - it could be hard to fix - is there an undo function in an other version?
On Fri, Dec 13, 2013 at 6:03 AM, Martin Album Ytre-Eide <
Martin.Album.Ytre-Eide@nrpa.no> wrote:
Hello all.
I have been trying the digitizer in 6.4.2, and I am having several
difficulties. I am working with a polygon map, and as a test, I am trying
to create a polygon which I try split into four smaller polygons. First I
divide it in half and then a divide one of the new halves in two.
Afterwards, I have generated centroids for the area. I have used only the
"new boundary" tool for this - and that may be wrong? But I have tried some
other options without any luck.
Does anyone know how to do this? There also seems to be a problem that the
map is saved even though I say no thanks. So, if you do a mistake - it
could be hard to fix - is there an undo function in an other version?
Hi, I'm not using digitizer regularly, so I cannot answer you first
question. However, there are definitively some improvements in GRASS 7
digitizer including the undo button. I'm not sure about GRASS 6.4.3, so if
nightly build (or what ever) of GRASS 7 is acceptable for you, try it.
I don't to have an answer to your problem, but in general, I have found that the wxgui digitizer in 6.5 works reasonably well, whereas the 6.4.3 does not. The same is true of version 7, it works for me.
Jon
On 14 Dec 2013, at 5:14, Vaclav Petras wrote:
On Fri, Dec 13, 2013 at 6:03 AM, Martin Album Ytre-Eide <
Martin.Album.Ytre-Eide@nrpa.no> wrote:
Hello all.
I have been trying the digitizer in 6.4.2, and I am having several
difficulties. I am working with a polygon map, and as a test, I am trying
to create a polygon which I try split into four smaller polygons. First I
divide it in half and then a divide one of the new halves in two.
Afterwards, I have generated centroids for the area. I have used only the
"new boundary" tool for this - and that may be wrong? But I have tried some
other options without any luck.
Does anyone know how to do this? There also seems to be a problem that the
map is saved even though I say no thanks. So, if you do a mistake - it
could be hard to fix - is there an undo function in an other version?
Hi, I'm not using digitizer regularly, so I cannot answer you first
question. However, there are definitively some improvements in GRASS 7
digitizer including the undo button. I'm not sure about GRASS 6.4.3, so if
nightly build (or what ever) of GRASS 7 is acceptable for you, try it.
On Sat, Dec 14, 2013 at 12:15 PM, Jón Eiríksson <jeir@hi.is> wrote:
I don't to have an answer to your problem, but in general, I have found that
the wxgui digitizer in 6.5 works reasonably well, whereas the 6.4.3 does
not.
Jón, could you say a bit more about this? Because
grass64/gui/wxpython/vdigit/*
and
grass65/gui/wxpython/vdigit/*
On Sat, Dec 14, 2013 at 12:15 PM, Jón Eiríksson <jeir@hi.is> wrote:
I don't to have an answer to your problem, but in general, I have found that
the wxgui digitizer in 6.5 works reasonably well, whereas the 6.4.3 does
not.
Jón, could you say a bit more about this? Because
grass64/gui/wxpython/vdigit/*
and
grass65/gui/wxpython/vdigit/*
look identical to me...
The same is true of version 7, it works for me.
(that's good to know)
Markus
- My my experience with the 6.4.3 digitizer was based on an GRASS 6.4.3svn (2013), mid-summer 2013. I have now revisited GRASS 6.4.3 (2013) - stable version, and tested the digitizer for the tasks I commonly do in GRASS 7 (and 6.5), found no problem so far. So my comments were misplaced and water under the bridge, I guess.
Jón
Ok, so I got grass70 working with digitizer - the do and undo buttons worked good. But I could not get solve my original probelm. I will try qgis now I think.
I have been trying the digitizer in 6.4.2, and I am having several difficulties. I am working with a polygon map, and as a test, I am trying to create a polygon which I try split into four smaller polygons. First I divide it in half and then a divide one of the new halves in two. Afterwards, I have generated centroids for the area. I have used only the “new boundary” tool for this - and that may be wrong? But I have tried some other options without any luck.
Does anyone know how to do this? There also seems to be a problem that the map is saved even though I say no thanks. So, if you do a mistake - it could be hard to fix - is there an undo function in an other version?
Hi, I’m not using digitizer regularly, so I cannot answer you first question. However, there are definitively some improvements in GRASS 7 digitizer including the undo button. I’m not sure about GRASS 6.4.3, so if nightly build (or what ever) of GRASS 7 is acceptable for you, try it.