Hi Tom, 

Perhaps the following reference could be of help to you when you start
writing the plugin:
Computers&Geosciences: 1986, V12, pp175-197 - DIGMAP: a computer program
for accurate acquisition by digitizer of geographical coordinates from
conformal projections. (FORTRAN IV code on a Z-80!!!) 

Regards,
Benoit 

On 21/02/2014 09:56, Thomas Colley wrote: 

> Hi Nathan 
> 
> Thanks for replying. From what I can understand it's just a case of 
> georeferencing the drawing on the board in the same way as you would a raster 
> on the screen. 
> 
> ArcMap takes a text file with at least 4 coordinate pairs from the drawing on 
> the board that it uses to tie the digitizing area into the on screen CRS. 
> 
> So I hope it might be relatively easy to implement a plugin that can accept 
> these coordinates then apply some sort of shift to any input from the drawing 
> board. 
> 
> I'll try and get some more info on how it works in ArcMap. 
> 
> Thanks again
> Tom 
> 
> FROM: Nathan Woodrow [mailto:[email protected]] 
> SENT: 20 February 2014 12:54
> TO: Thomas Colley
> CC: qgis-user
> SUBJECT: Re: [Qgis-user] QGIS with digitizing board/tablet 
> 
> Hey Thomas, 
> 
> Wouldn't it just pick it up like a mouse? Qt does have support for more 
> pressure based devices but QGIS doesn't take advantage of it. It will work 
> fine if it acts like a mouse though. 
> 
> - Nathan 
> 
> On Thu, Feb 20, 2014 at 10:50 PM, Thomas Colley 
> <[email protected]> wrote: 
> 
> Hi 
> 
> Is it possible to use QGIS with a digitizing board/tablet? 
> 
> I've had a search but can't find any information on this. 
> 
> The board I am trying to use is a CalComp DrawingBoard III that our users 
> have been using with ArcMap. 
> 
> If it's not currently possible in QGIS I will look at creating a plugin for 
> it. 
> 
> Thanks 
> 
> Tom
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> 
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