Hi Stefan. Welcome back!
@Peppe, I think Stefan is referring to Edit Selected Side, and it seems like
a perfect example of what you are trying to do. It creates a new temporary
layer and calculates distance and angles.
regards,
Larry
On Wed, Jul 13, 2011 at 2:28 PM, Stefan Steiniger <sst...@geo.uzh.ch> wrote:
> Hei Peppe
>
> thats great news that you started programming!
> for the first one - how about this example on the buffer:
>
>
> http://sourceforge.net/apps/mediawiki/jump-pilot/index.php?title=Example_Plugin_For_Buffering_Features_in_a_Layer
>
> but instead of creating a buffer geometry you get the coordinate of the
> point and create a new point feature in a new layer... or so?
> But what makes it a bit more difficult is that you stay in an
> interaction mode... i.e. you activate the function once and then stop it
> later when you are done and keep writing to the same layer... so you
> need like two buttons and create the layer only once? (my draw circles
> tool from the editing box is a bit a mess, but could help too)...mhm the
> more I think about it, the more complicated it seems to me.
>
> for the second on.. seems more tricky to me. Would need to think about it.
> However, the tools that came with SkyJump to modify and access edges of
> a polygon do something similar - right?
>
> cheers,
> stefan
>
> On 13/07/2011 2:26 AM, Edgar Soldin wrote:
> >> My idea is to start from this tool to obtain other surveying tools.
> >>
> >> My questions are:
> >>
> >> 1) actually the tool only displays on status panel the value of the
> angle. I need that it creates a new layer and , for every measuring, a
> point with the values of degrees saved in an attribute
> >>
> >> 2) I need that the tools creates, for every measuring, a line with
> vectors (segments) oriented according the calculated angles.
> >>
> >> I really thatnk if someone can help me.
> >>
> > i usually look around if somewhere in oj or in an extension is a similar
> functionality as i need and look how thy did it, reading the source. then i
> cherry-pick the routines i need and glue them together as needed.
> >
> > good luck ede
> >
> >
> >
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