[Qgis-user] Shape of parcel

[Jon]

All,

Thank you for the help on my question. I am very new to QGIS and only
use it for very simple tasks that I can figure out. It took a bit but I
was able to do some of the things suggested from the group.

1. I was able to do as Gert-Jan van der Weijden suggested using
"Minimum Boundary Geometry". I think "Oriented Minimum Bounding Box"
works on all shapes in a shape file where the former puts a box around
the entire shape file. These were found in the Processing Toolbox, it
gets close but is lacking accuracy as it puts the minimum box required
to enclose the shape, so irregular shapes will not fit inside
perfectly. But it does get me a lot closer to where I was before and
only irregular shapes have an issue.

2. I also figured out how to do what Hernan De Angelis was alluding
to...I think. This involved using Polygons to Lines and then from there
using Explode Lines. This actually gave the correct length of the lines
but it measured, I believe, on the outside of the shape rather than
measuring distance from the inside of the shape. Because of measuring
on the outside, if two intersecting lines it would break the
measurement up into multiple measurements.

Also for 2, was not able to figure out how to add the new dimensions to
an Attribute Table that I could then export.

Jon


-----Original Message-----
From: Andrea Giudiceandrea via Qgis-user <qgis-user at lists.osgeo.org>
Reply-To: Andrea Giudiceandrea <andreaerdna at libero.it>
To: qgis-user at lists.osgeo.org
Subject: Re: [Qgis-user] Shape of parcel
Date: Thu, 11 Aug 2022 22:41:16 +0200

> Gert-Jan van der Weijden (GISNederland)
> Thu Aug 11 09:15:48 PDT 2022
> The "minimum bounding geometry" in the processing toolbox might help
> you.
> 
> let it iterate (button just right of the "input layer"-dropdown)over 
> the input layer
> (otherwise you get just one oriented rectangle for all the features
> in 
> your input layer).
 
Hi Gert-Jan,
if the features have a field that contains a different value for each
one, then it is possible to specify such field in the "Field" parameter
of the "Minimum bounding geometry" processing algorithm in order to let
it compute the minimum bounding geometry separately for each feature in
the input layer and store all the resulting minimum bounding geometries
in a single output layer (without the need to use the "Iterate"
functionality which creates as many output layers as the input
features).

Best regards.

Andrea Giudiceandrea
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