Questions tagged [references]

When seeking information about specific (not lists of) books, papers, presentations, tutorials, videos of lectures, and other materials

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17 views

Open problems / recurring gaps in building GIS software products? [closed]

My question is to people who have built geospatial software systems (rather than just worked with geospatial data) I'd like to ask what subsystems / software components do you find yourself building ...
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21 views

Extending OSM geometries [closed]

For some custom use case we need to redefine some parts of OSM with data that doesn't make sense to contribute back to OSM. Basically we need to have a custom definition of sidewalk plus some other ...
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34 views

QGIS GUI Creating in C++ [closed]

I want to create a GUI in C++ using QGIS. I am very new to this area and found only Python tutorials for it. I have also looked at the official documentation but I found less information about C++ ...
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23 views

Choosing method for seeking albedo from Landsat 8

I am new to the field of satellite imagery. I would like to get a high resolution albedo of the earth's surface, but I don't really know how to do it. I'm hoping to use Landsat 8 imagery, but I'm not ...
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13 views

Meaning of Jeffreys-Matusita Separation values

I've computed the JM separation values for my training classes for Sentinel-2 image classification. I understand that the values range between 0-2. Most of the values are above 1.9, but some are down ...
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1answer
32 views

Overview of possibilities to download spatial data in R [closed]

I was searching for a site that kind of lists resources/packages/etc on how to download a wide variety of geospatial data. For example Political Boundaries (e.g. fro Natural Earth with the ...
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2answers
197 views

Where is QGIS Desktop data stored?

I've asked for our IT department to install QGIS Desktop on a new laptop. They asked me to confirm whether data for the app is stored in the UK. As far as I can tell the data is simply stored locally. ...
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41 views

Seeking Python in QGIS tutorial [duplicate]

I'm looking for a complete Python tutorial under QGIS. Do you know where can I find one?
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1answer
55 views

Gdalserver purpose and function

What does gdalserver do and how does it work? I can't seem to find the documentation explaining how to use it.
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1answer
60 views

Learning how to use QGIS Expressions [closed]

What is the best way to learn about expressions in QGIS? Do you have any book recommendation?
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37 views

Reference for Google Earth Engine Map Screenshot

I would like to use a screenshot of a Landsat Image in GEE in an university paper. I read the Terms of Use but still don't really know how to put the references correctly. When the image is displayed, ...
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1answer
39 views

PDF or HTML versions of Spatial Query Lab (FOSS4G Academy) lectures by Rick Smith

I am Spatial Science Teacher at TAFE NSW teaching Spatial Information Systems online. In 2019 our department started including links to many of the Spatial Query Lab SQL lectures in our resources. We ...
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1answer
109 views

Seeking ArcGIS Pro cheat sheet

Is there a cheat sheet that helps me remember where settings are hidden in ArcGIS Pro? I am looking for a poster that I can hang next to my monitor.
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1answer
63 views

Difference between Linear Hydrography and Area Hydrography

I am looking at the U.S. Census data and downloading the linear hydrography and area hydrography datasets to add to my first GIS map (I'm a new student). I am self-teaching GIS, and after a multitude ...
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1answer
34 views

Seeking Detection Tutorial for Google Earth Engine [closed]

Does anyone know a good tutorial to learn how to detect objects using Google Earth Engine? My goal is to find a smart way to detect objects (these objects are plantations in Ivory Coast) using Landsat ...
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0answers
53 views

How to learn GIS? [duplicate]

Could someone guide me where to study all about GIS and pursue it as a profession without going to college? I am seeking links.
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0answers
35 views

How to use QGIS Python API? [duplicate]

I am new to Python and QGIS, and I want to automate a process so I want to learn how to use the QGIS Pyhton API to make our own code and do the job. If anyone knows any tutorial about this then please ...
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0answers
552 views

Citing/attributing Google basemap in QGIS for research paper [closed]

I have searched Google for how to cite a Google base map in QGIS for a research paper and I cannot find the correct website for their rules for attribution. Can somebody quickly link me to their ...
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1k views

Getting started with SharpMap in Visual Studio with C#

I am trying to use SharpMap in Visual Studio with C#. My first step was to go to the Tutorials on CodePlex. https://archive.codeplex.com/wikipage?title=SharpMap%20Tutorial&referringTitle=Home But ...
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1answer
56 views

Converting Long Lat from Address in OpenLayers

I want to convert Long Lat from Address using OpenLayers. For example: Address: London => Lat: 51.507351 , Long: 0.127758 I can't document tutorial.
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1answer
183 views

Looking for 3D Data Visualization Tutorial in QGIS 3.10

I want to extrude polygons based on a attribute value, and then view this with 3D Map View. I have been struggling for days and are not getting anywhere. I am using QGIS 3.10.4. Can someone please ...
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55 views

Looking for CRS/Projection Services

As a part of my university project I am developing a web service that provides information about coordinate reference systems that were created in USSR. It will show its Proj.4 and WKT definitions, ...
5
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1answer
309 views

Parallel processing in QGIS3 on Windows system

I am working on a big vector data set with more than 2.4 million features containing 10x10m squares. I wrote a small script in Python to delete uninteresting fields and perform calculations on the ...
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1answer
219 views

Seeking tutorial to split group of layers in QGIS

I am trying to split a group of layers, but I can't find anything online about it. I have a layer with a paper clip on it (in the sidebar). I can't figure out how to break it. Could you link me to a ...
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1answer
324 views

Converting ArcSDE point data from image to MSSQL geometry

I have a bunch of points in an SDE table which is currently stored in an MSSQL database. The full entry is below, while the data i'm trying to convert from binary to geometry is: ...
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119 views

Wrong coordinate

I'm working on Sudan I opened a Google map layer from the quick map services I don't know how to set the project coordinate system to get to correct longitude and latitude Should the project have a ...
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0answers
28 views

Satellite moving target tracking simulation

I am trying to create a Simulation of an earth-pointing satellite. The satellite should track a moving target on the ground via an on-board camera. How can I calculate the goal attitude of the ...
3
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1answer
685 views

Converting Model in Plug-in in QGIS

Recently, I started making a model on QGIS and now I want to transform it into a plug-in, but it seems that I have to change the code to do it, otherwise it won't work. What changes are required to ...
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1answer
166 views

Seeking tutorials online explaining how to draw squares (having specific length) in QGIS?

I need to produce in QGIS a square having a specific dimension (1km x 1km). First I created a new polygon layer, but when I start editing through the Advanced editing tool, the program crashes. I ...
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2answers
1k views

How to make a fictional city map? [closed]

I'm currently making fictional city for my novel project, and I need a tool for making city map. I tried Adobe Illustrator, but it'll be quite hard labeling each streets, parks, buildings etc. I saw ...
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1answer
30 views

Where can I find images of the Buttons? [duplicate]

I am trying to write a tutorial for simple QGIS functions. I would like to include a set of buttons, each with an explanation of what its function is. Can anyone tell me where I could find the buttons ...
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1answer
62 views

Label or font colors on an imagery background examples

I have been in searching of a website that was done by somebody from ESRI that wrote about...if I remember right...it was in either on the ArcGIS Mapping Center or in the ESRI Technical support ...
2
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1answer
243 views

What is QGIS private cloud?

I am working on a conservation project involving rare species and we have a lot of sensitive data and about 50 people to whom we need to supply maps to. At least at this stage we can not justify ...
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1answer
65 views

Seeking tutorials about GIS workflows in FME? [closed]

I have never used FME for spatial processes before. However, I would like to use it in automating some GIS processes and learn. Are there are any specific tutorials that explain this?
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1answer
969 views

Hosting raster tiles on GeoServer? [closed]

I am new to GIS world. I am trying to host raster images (TIFF) which I need to convert in tiles and host on GeoServer and prepare the service URL so that any user using that service zoom to any ...
2
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0answers
60 views

Searching styles for indoor maps

I have data that represents Airport floor plans stored in GeoJSON format. Are there any standards, guidance, or good practices for Indoor Maps Styling? Any references or resources would be useful.
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2answers
65 views

Learning DEM resources? [closed]

I'm starting on a problem where I need to find the high point inside a polygon that exists inside the bounds of a DEM tile. I'm teaching myself GDAL and I'll be using Python to access the GDAL library....
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2answers
546 views

Transferring flows (connections + values) between polygons

In QGIS there are two shapefiles representing the moving data between cells and one additional layer, see image below Moving data defined by: Polygon "LayerA" (transparent squares with red outline)...
2
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1answer
209 views

Inherited values between polygons in QGIS [duplicate]

In this project, I have three polygons, see the image below 'Polygons_From', includes input attributes, i.g. "Value_1", "Value_2", "Value_3", and $area for each quadrate ...
1
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1answer
68 views

Citing data on map layout?

I am working on a thematic site map for a scientific study. In addition to my own data that will be displayed on the map, I have included reference data from U.S. federal agencies (e.g. National ...
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0answers
201 views

Understanding proj4, epsg and esri *.prj in depth? [closed]

Where can I find a good resource that teaches me 1) about the difference between proj4, EPSG and ESRI *.prj? (Why do several coordinate system definitions exist? When should I use which? How are they ...
4
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0answers
93 views

How to read PyQGIS documentation? [closed]

As I get more into QGIS scripting, I refer to the documentation often and usually without success. I have trouble deciphering how to interpret the classes, etc. I've been really struggling to create ...
0
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1answer
63 views

Learning to use QGIS online? [duplicate]

I want to start using QGIS. I have worked in ArcGIS but I would like to start learning QGIS online. Any suggestions for good online courses (hopefully free or not very expensive)?
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1answer
163 views

Seeking MODIS Land Surface Temperature reference? [closed]

Can anyone point me toward an article that converts the LST values on the MODIS LST Image to degrees Celsius? My purpose is find a reference (article, book or theses) for this formula that converts ...
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4answers
1k views

Using WinForms with ArcGIS Pro SDK?

I want to port a tool developed in ArcObjects for ArcMaps into ArcGIS Pro using the ArcGIS Pro SDK. The tool's UI was created using WinForms but to recreate the UI in ArcGIS Pro is looks like I would ...
7
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1answer
2k views

Developing QGIS Python plugins using Jupyter?

Is it possible to run PYQGIS commands using Jupyter notebook and, if so, is there any documentation to develop QGIS plugins using Jupyter?
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1answer
204 views

Creating polygon from leased unit metes and bounds calls using ArcMap? [closed]

I have a dataset containing with metes and bounds listing an area. I want to build a layer from these calls and produce the lines (polygons) that show the area. I know there may be a bit of ...
1
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1answer
62 views

Have you all solve importing Z point from dxf to QGIS? [duplicate]

I have read all the answer about importing dxf to QGIS, but I still not understand yet. Does anyone have a video link (youtube or another) that show me step by step to export dxf with Z point to QGIS?...
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0answers
30 views

Recommended Books on Arcpy/Python and GIS [duplicate]

Does anyone have recommendations on books/workbooks that I can read that goes beyond a beginner's level for Arcpy/Python with GIS? I've written several scripts, some simple, some complex, but I want ...
4
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1answer
6k views

Latitude, longitude, projections, CRS [closed]

I'm confused about the following basic points: Do lat/long points have a projection or are they projection agnostic? Do these points live in a sphere or a plane? I understand that projections are ...

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