Hi Ryan,
I think you could create a python QgsVectorDataProvider for your data
and setup a QGIS server for hosting a wms.
https://www.itopen.it/qgis-vector-data-provider-python/
But I would probably just go for a simple script that converts the csv
file into a polygon dataset (gpkg, shp, postgis, ..) and create a wms
based on that.
Kind regards,
Raymond
On 26-11-2020 19:10, Ryan Peel wrote:
Extending this thought a little. Is there a way to create a WMS service
from this so that the WMS reads a csv file, automatically creates the
polygons using the expression that Toto recommended, so that it (on the
fly) creates the polygons from adding the WMS to a map so I can share
with my co-workers so that we are all using the updated data (rather
than having to share a shp file).
Long question, hoping for maybe an easy solution.
Ryan
VB Fiber
On Thu, Nov 26, 2020 at 12:59 PM Ujaval Gandhi
<uja...@spatialthoughts.com <mailto:uja...@spatialthoughts.com>> wrote:
Totò - really great solution! Didn't know about Geometry by
Expression and it will come in handy for sure.
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On Thu, Nov 26, 2020 at 8:33 PM Totò Fiandaca
<pigrecoinfin...@gmail.com <mailto:pigrecoinfin...@gmail.com>> wrote:
From Processing:
search for Geometry by Expression:
1. as input layer put your file with the coordinates
2. and write this expression:
make_polygon (
make_line (
make_point ("x1", "y1"),
make_point ("x2", "y2"),
make_point ("x3", "y3"),
make_point ("x4", "y4")
))
and launch the geoprocess.
I used QGIS 3.16 Hannover
Il giorno gio 26 nov 2020 alle ore 15:48 Ryan Peel
<ryanp...@gmail.com <mailto:ryanp...@gmail.com>> ha scritto:
I have a csv/table that has a single row that contains some
metadata as well as four SEPARATE columns, x1, y1, x2, y2,
x3, y3, x4, y4 of decimal degree coordinates.
I want to import all of this data into QGIS and create a
polygon from the four points as a vector layer.
What is the best way to do this? I'm not a programmer or
scripter really and fairly new to QGIS.
Thanks!
*Ryan Peel*
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