[Qgis-us-user] New to QGIS and Spatial analysis

[Mike Seskin]

Hi Karsten - thank you VERY much for this help!

Yes, a couple of follow-up questions if you don't mind...is there a way to automatically define a 1 square mile extent around each point in my shape file?  And then can I run the "convert map to raster" tool automatically on each area.  So for instance if I have a shape file with 10 points layered on Google satellite, can I use the "convert map to raster" to automatically create 10 satellite image files?

Thanks again for any help!

Mike Seskin | EQL
Office: (858) 694-1851  |  Cell: (442) 245-1779
Email: seskin_michael_x at solarturbines.com
Solar Turbines Incorporated



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From: karsten <karsten at terragis.net>
Sent: Monday, March 14, 2022 7:48 PM
To: Mike Seskin <Seskin_Michael_X at solarturbines.com>; qgis-us-user at lists.osgeo.org
Subject: RE: [Qgis-us-user] New to QGIS and Spatial analysis

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Hi Mike,

 >>>  Question:   I recently installed QGIS in the hopes it can help me create satellite image files from a shape file consisting of points.  I want to automatically define an area (for instance 1 square mile) around each point and save the Google satellite image of each of the 1-square mile areas.  Is this possible in QGIS?
It sounds that you have loaded Google Arial "satellite' Imagery (a RGB image likely as a background layer) and would want to create a a clipped version of that image and save locally . Does that sound correct ?
Overall the answer is yes - QGIS can be used to do this.

The usual way QGIS works is with local files. So ion case you have a local raster (imagery aka a raster file as *.tif e.g. you can use that to clip it using the QGIS tool.
In your case you might have an online resource and one way to get that clipped is to first save a local copy and then clip the local raster. You can use the Processing tool box for this

In the Processing Toolbox search box type in

1.) Convert Map to Raster.
save the background image a geotif ( see see more info here https://www.giscourse.com/how-to-download-google-maps-orthophoto-data-on-your-computer-using-qgis/<https://urldefense.com/v3/__https:/www.giscourse.com/how-to-download-google-maps-orthophoto-data-on-your-computer-using-qgis/__;!!M7dyoZOwuwF45AU!inmNwZgxuEAddP2qoirSwLvszFoazwPtmcTciiC8YxlsKlOF8GSB-ivhZ7nKfIKp0skwBOENiHU$> )

2.) use a buffer tool to create a shape for the clip feature .e.g.
use "Rectangles, ovals, diamonds"

3.) use the "clip" tool to clip the raster with the cerate in step 2

Such processes can be automated, if interested to hear about that just ask

Cheers
Karsten
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