Hi,
Depending on what you are doing and what kind of results you are looking
for, could you simply use "Polygonize" and then clean those results. If
your map are in RGB only, you could do a raster classification analysis
before hand. Line would follow pixels at first but those could be fixed
using various vector tools.
Just a thought!
Nicolas
On 2022-06-16 11:26 a.m., Firstname Lastname via Qgis-user wrote:
i am a qgis newby and i am beginning a large project that involves
digitizing several geology maps. i am trying to determine the best
way to manage the digitizing and avoid extra work.
my question to the group is: If i have several coloured polygons that
are adjacent to each other, is there an efficient way to digitize one
polygon and then use one edge of that polygon for the adjacent polygon
so that i dont have to redigitize the same edge twice and so that i
will have precisely overrlapping polys with no gaps? should i
digitize one polygon, export and rename it? can i digitize one have
of the next polygon and somehow merge it with the now re-imported
polygon?
is there a more efficient way to do this?
many thanks
--
Byron Veilleux, MSc. P.Geo
Conjugate Geologic Services Limited
Calgary, Alberta Canada
by...@conjugategeo.com
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--
Nicolas Cadieux
https://gitlab.com/njacadieux
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