[QGIS-Developer] [Qgis-user] CAD and QGIS - Working with archaeological sites

[C Hamilton]

Somehow I missed seeing that plugin. It looks promising.

Thanks to everyone. This group is awesome!!!

On Fri, Aug 10, 2018 at 3:42 AM, Agustin Angel Diez Castillo <
agustin.diez at uv.es> wrote:

> Just in case, two things I may have overlooked in previous messages, you
> can vectorize your file, and you can do transparency by pixel as far as you
> background is white 255, 255, 255 will do the trick. If you want to do some
> adjustments to the original images, or add other no georeferenced ones, the
> new freehand georeferencer [1] in Qgis 3x it is the perfect tool for
> archaeologists, at least for this one.
> Best
>  Agustín
> [1] http://gvellut.github.io/FreehandRasterGeoreferencer/
>
> El Viernes 10 Agosto 2018 03:17 CEST, Nyall Dawson <nyall.dawson at gmail.com>
> Ha escrito:
>
> > On Fri, 10 Aug 2018 at 11:11, C Hamilton <adenaculture at gmail.com> wrote:
> > >
> > > Thanks!!! That is a good idea to use the layout panel.
> > >
> > > The advanced digitizing panel was the piece that I was missing. Yes
> the tools in QGIS 3 are much better.
> >
> > This is certainly a novel task to do in QGIS. I'd love to see a write
> > up/case study/blog post detailing your experiences after you've
> > finished!
> >
> > Nyall
> >
> > >
> > > On Thu, Aug 9, 2018 at 7:49 PM, Nyall Dawson <nyall.dawson at gmail.com>
> wrote:
> > >>
> > >> On Fri, 10 Aug 2018 at 08:01, Alexandre Neto <senhor.neto at gmail.com>
> wrote:
> > >> >
> > >> > Hi,
> > >> >
> > >> > On Thu, Aug 9, 2018, 22:27 C Hamilton <adenaculture at gmail.com>
> wrote:
> > >> >>
> > >> >>
> > >> >> Also is there a way a non georegistered image be imported, make it
> somewhat transparent, and then interactively drag and resize it on the map
> somewhat like Google Earth? When you don't really have anything to
> reference the image to you can't use georeferencer.
> > >> >
> > >> >
> > >> > I guess you could do that on layout mode. Adding an imagem, set
> some transparency and then try to fit it somewhere.
> > >> >
> > >> > Once it's on the right spot. Save the layout as image storing a
> world file. Then you can add it back, and use georeferencer on the original
> image.
> > >>
> > >> Actually if you save the world file you shouldn't need to use
> > >> georeferencer - it should be placed in the correct place immediately
> > >> after loading in QGIS.
> > >>
> > >> > I am not a CAD guy, so I would trace it using QGIS.
> > >>
> > >> Just to add to this - the digitizing tools in QGIS are very powerful
> > >> now (especially with the new shape digitizing toolbar in 3.0, and the
> > >> Advanced Digitizing dock. I'd go with that approach as doing it in the
> > >> GIS means that it's inherently spatial data - vs doing it in CAD,
>
> > >> which means you've gotta manage the spatial reference manually.
> > >>
> > >> Nyall
> > >
> > >
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>
>
>
>
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