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

Tue Mar 15 09:14:56 PDT 2022

Randy / Doug

Thanks for all the great info on imagery sources.  Ironically (Randy) you mentioned gas turbines, which happens to be connected to my whole reason for investigating GIS.  Therefore my imagery requirements are global since our engines our scattered throughout the world.  I'll investigate some of the sources you provided, excluding the localized ones.

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

Caterpillar: Confidential Green
From: Randal Hale <rjhale at northrivergeographic.com>
Sent: Tuesday, March 15, 2022 8:10 AM
To: qgis-us-user at lists.osgeo.org; Mike Seskin <Seskin_Michael_X at solarturbines.com>
Subject: Re: [Qgis-us-user] New to QGIS and Spatial analysis

________________________________
CAUTION: EXTERNAL EMAIL
This is a message from rjhale at northrivergeographic.com<mailto:rjhale at northrivergeographic.com>.
Use caution when opening unexpected emails and do not click on links or attachments from unknown senders.
For more resources, visit security.cat.com/phishing.
________________________________

That's awesome.

Google imagery (assuming you're using QuickMapServices) is pushed through a service and I think those services are usually pretty locked down with licensing plus it's a service so it's just harder to deal with.

So I **think** you can purchase Google imagery - not sure of the cost.

Depending on where you are and what you're doing here's what I would do:

1. Check with the local City/County and see if they have imagery. It will be probably 6 inch to 1 foot in resolution. There may be a charge or it may be free. Example:  Hamilton County TN has an image service that QGIS can use and they sell imagery.

2. Check with the state you are in and see what they have. I would search for "State of Mike GIS Data" (with Mike being the state you're in) and see what pops up. Example: The state has an imagery service and they sell imagery to the general public and to counties. Go back to 1 and they (county) may give you what they purchased. Tn has free LIDAR data for download also.

3. Federal is the next step - NAIP (1 meter). That's free and may be awesome for what you want or may not be. https://www.fsa.usda.gov/programs-and-services/aerial-photography/imagery-programs/naip-imagery/<https://urldefense.com/v3/__https:/www.fsa.usda.gov/programs-and-services/aerial-photography/imagery-programs/naip-imagery/__;!!M7dyoZOwuwF45AU!g_b3G6DWyLQszl5jNIBPPCq1kjBm0NqE5eTkVOtsJulvNT91Ke2fDYsgLnYAIDj1r4oCDkNZ7H4$>

4. Weird use cases that may have imagery in the area - like some utilities will fly their own imagery and have that available if you ask nice (I was a former Federal Utility Employee in Tennessee which had some gas turbines).

5. Landsat will completely work but I think that may still be 30 meter pixel size - but it's free. There are some other satellite imagery that is free also - you're just trading resolution for cost.

6. Planet labs sells imagery - but not sure of the cost on that on either.

Yeah - that's the hard part -  imagery. Software is easy - imagery makes my head hurt.

Randy

On Tuesday, March 15, 2022 10:10:35 AM EDT Mike Seskin wrote:

> Hi Randal - thanks very much for this high level overview, it's incredibly helpful for a beginner

> like me!

>

> I took some excellent earlier direction from Karsten who pointed me towards a solution using the

> graphical modeler - it seemed perfect until I ran it and encountered some inexplicable error with

> the Google satellite raster - that is until I read your reply, and now it makes sense!  What a

> bummer about the licensing  -- as you said the imagery is the kicker!

>

> Are my following imagery options correct?

>

>

>   1.  Purchase a license from Google

>   2.  Use landstat for free

>

> Thanks

>

> Mike Seskin | EQL

> Office: (858) 694-1851  |  Cell: (442) 245-1779

> Email: seskin_michael_x at solarturbines.com<mailto:seskin_michael_x at solarturbines.com>

> Solar Turbines Incorporated

>

>

>

> Caterpillar: Confidential Green

> From: Randal Hale <rjhale at northrivergeographic.com<mailto:rjhale at northrivergeographic.com>>

> Sent: Tuesday, March 15, 2022 6:53 AM

> To: qgis-us-user at lists.osgeo.org<mailto:qgis-us-user at lists.osgeo.org>; Mike Seskin <Seskin_Michael_X at solarturbines.com<mailto:Seskin_Michael_X at solarturbines.com>>

> Subject: Re: [Qgis-us-user] New to QGIS and Spatial analysis

>

> ________________________________

> CAUTION: EXTERNAL EMAIL

> This is a message from rjhale at northrivergeographic.com<mailto:rjhale at northrivergeographic.com%3E<mailto:rjhale at northrivergeographic.com%3cmailto:rjhale at northrivergeographic.com%3E>.

> Use caution when opening unexpected emails and do not click on links or attachments from unknown

> senders. For more resources, visit http://security.cat.com/phishing.

> ________________________________

>

> Hey Mike - Welcome to the list.

>

>

> So the short answer is yes and the longer answer is Yes it's a little complicated but doable.

>

>

> For the explanation I''m going to completely ignore projections - that's a whole other discussion.

>

>

> If you had a point (like a tower) you could run the buffer tool and buffer it one mile. From there

> I think you would "clip by mask layer" and extract the image. You could save that as a geotiff or

> whatever you needed. Life would be good. (I say all that like you know where the tools are - look

> for processing at the top of QGIS - that gives you processing tools).

>

>

> The bigger problem is the imagery - you can't clip Google Satellite imagery and use that per the

> license from Google. So you would need another image source be it landsat or something local

> (maybe the county you're working in has imagery they would share). Imagery is a pain.

>

>

> Really - that's the kicker - the imagery. Get that and then there's the whole discussion on "get

> it in a local projection" and you're done - it's about three steps in QGIS to get what you want.

>

>

> It's completely doable! I dunno how much this has helped but you're on the right track.

>

>

> Commands:

>

> https://docs.qgis.org/testing/en/docs/user_manual/processing_algs/qgis/vectorgeometry.html#qgisbuf<https://urldefense.com/v3/__https:/docs.qgis.org/testing/en/docs/user_manual/processing_algs/qgis/vectorgeometry.html*qgisbuf__;Iw!!M7dyoZOwuwF45AU!g_b3G6DWyLQszl5jNIBPPCq1kjBm0NqE5eTkVOtsJulvNT91Ke2fDYsgLnYAIDj1r4oCCQM7GRc$>

> fer<https://urldefense.com/v3/__https:/docs.qgis.org/testing/en/docs/user_manual/processing_algs/q

> gis/vectorgeometry.html*qgisbuffer__;Iw!!M7dyoZOwuwF45AU!kH6lFpUw2LB9mr5_sJC7Zg6MmXJdUngpW3rDnn-6N

> jHwqzsxp1QIcIxEKimYAZTIwRUeetxWcrE$>

>

> https://docs.qgis.org/testing/en/docs/user_manual/processing_algs/gdal/rasterextraction.html#gdalc<https://urldefense.com/v3/__https:/docs.qgis.org/testing/en/docs/user_manual/processing_algs/gdal/rasterextraction.html*gdalc__;Iw!!M7dyoZOwuwF45AU!g_b3G6DWyLQszl5jNIBPPCq1kjBm0NqE5eTkVOtsJulvNT91Ke2fDYsgLnYAIDj1r4oCyZZmSyI$>

> liprasterbymasklayer<https://urldefense.com/v3/__https:/docs.qgis.org/testing/en/docs/user_manual/

> processing_algs/gdal/rasterextraction.html*gdalcliprasterbymasklayer__;Iw!!M7dyoZOwuwF45AU!kH6lFpU

> w2LB9mr5_sJC7Zg6MmXJdUngpW3rDnn-6NjHwqzsxp1QIcIxEKimYAZTIwRUez1pQDmU$>

>

>

> Yell if you need anything!

>

> Randy

>

> On Monday, March 14, 2022 7:10:56 PM EDT Mike Seskin wrote:

> > Preamble:

> >   1.  I've been unsuccessfully searching for answers online for several days

> >

> >   2.  I am new to spatial analysis and GIS, and therefore trying to figure out what it can and

> >

> > cannot do

> >

> >

> >

> > 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?

> >

> >

> >

> > Thanks

> >

> >

> >

> > Mike Seskin | EQL

> >

> > Office: (858) 694-1851  |  Cell: (442) 245-1779

> >

> > Email: seskin_michael_x at solarturbines.com<mailto:seskin_michael_x at solarturbines.com%3E<mailto:seskin_michael_x at solarturbines.com%3cmailto:seskin_michael_x at solarturbines.com%3E>

> >

> > Solar Turbines Incorporated

> >

> >

> >

> >

> >

> >

> >

> > Caterpillar: Confidential Green

>

> --

>

> -------------

>

> Randal Hale

>

> North River Geographic Systems, Inc

>

> https://www.northrivergeographic.com<https://urldefense.com/v3/__https:/www.northrivergeographic.c<https://urldefense.com/v3/__https:/www.northrivergeographic.com*3Chttps:/*urldefense.com/v3/__https:/www.northrivergeographic.c__;JS8!!M7dyoZOwuwF45AU!g_b3G6DWyLQszl5jNIBPPCq1kjBm0NqE5eTkVOtsJulvNT91Ke2fDYsgLnYAIDj1r4oCxGWHR38$>

> om__;!!M7dyoZOwuwF45AU!kH6lFpUw2LB9mr5_sJC7Zg6MmXJdUngpW3rDnn-6NjHwqzsxp1QIcIxEKimYAZTIwRUexeg9u2g

> $>

>

> (p) 423.653.3611

>

> (e) rjhale at northrivergeographic.com<mailto:rjhale at northrivergeographic.com%3E<mailto:rjhale at northrivergeographic.com%3cmailto:rjhale at northrivergeographic.com%3E>

--

-------------

Randal Hale

North River Geographic Systems, Inc

https://www.northrivergeographic.com<https://urldefense.com/v3/__https:/www.northrivergeographic.com__;!!M7dyoZOwuwF45AU!g_b3G6DWyLQszl5jNIBPPCq1kjBm0NqE5eTkVOtsJulvNT91Ke2fDYsgLnYAIDj1r4oCoAMojnU$>

(p) 423.653.3611

(e) rjhale at northrivergeographic.com<mailto:rjhale at northrivergeographic.com>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.osgeo.org/pipermail/qgis-us-user/attachments/20220315/830d7eea/attachment-0001.html>