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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14 views

Storing geodata boundaries bordering each other [on hold]

I just need an idea to get started. I'm building a reference database containing all local authorities in the UK and I need, if I select one of them, to know which other ones are bordering it. for ...
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0answers
15 views

Database design for mapping assets [closed]

Are there standards or books that help in designing the database model for asset utilities?
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0answers
20 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. I already have the plug-in, I ...
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0answers
31 views

Methodology for boundary inspection

I have two datasets: parcel layers an overlaid boundary layer When the boundary was initially drawn it was never snapped to the parcel boundaries. We now need to conduct reviews around the entire ...
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1answer
129 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
69 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 ...
1
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1answer
28 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
45 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
82 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
52 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
61 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 ...
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0answers
33 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
56 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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1answer
58 views

Citing greenest pixel composite images derived from Google Earth Engine?

I am using two greenest pixel composite images via Google Earth Engine for a project but am unsure how to cite this data. Do I cite it as regular Landsat data?
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2answers
418 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)...
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0answers
41 views

Real-World Modelling Applications for ECI/ECF?

What are a few real-world examples for ECF and ECI (with more focus on an ECI example). I have read several articles and it only presents these concepts through physics and trig, lacking real-world ...
1
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1answer
125 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 (on the image there are two ...
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34 views

Accessing Feature Service via ArcGIS REST API to Customize App in Operations Dashboard?

Beginner here Just learned how to construct url to access the feature services needed to build the customized app I envision in Operations Dashboard, but struggling to find a tutorial/resources ...
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1answer
46 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
106 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 ...
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1answer
34 views

Calculating Viewshed of a region rather than a point [closed]

There are various calculations to find the viewshed of a point and all of them have different runtimes. the fastest is the calculation of line of sight angle and compare with upcoming cells. But what ...
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0answers
34 views

Submitting QGIS case study?

Where can I submit a QGIS case study? Any email sent to qgis-community-team keeps bouncing back.
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0answers
78 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 ...
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0answers
42 views

Vector response from TomTom Maps API

I am exploring TomTom Maps API for a project I am working on. Below is the reference link I used : https://developer.tomtom.com/maps-api/maps-api-documentation-vector/tile. I require to get the ...
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1answer
50 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
51 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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0answers
35 views

Interpretation of digital surface model (DSM) built from s2p tool and XML file

I am new to GIS. I am using s2p stereo pipeline to build Digital Surface Model (DSM.tif) from it. The height of certain point in this DSM.tif is 84 meters, and you can see from the color bar on ...
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3answers
243 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
422 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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0answers
40 views

QGIS for beginners [duplicate]

Could anyone suggest tutorials for a beginner in QGIS? I've gone through the ones teaching you how to compile a basic map and such things, now I need something more.
0
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1answer
105 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
38 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
26 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 ...
1
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1answer
2k views

Latitude, longitude, projections, CRS

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 ...
4
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2answers
560 views

Why did Esri create .zlas compressed LiDAR files instead of adopting .laz?

I am talking about the Esri Optimized LAS file format for compressed LiDAR files (.zlas). While the uncompressed format (.las) from ASPRS was adopted by practically the entire Remote Sensing and GIS ...
4
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2answers
837 views

Surveys showing GPS accuracy in different models of smartphones?

Are there any surveys that give accuracy in meters for different smartphones (e.g, iPhone 6: 8 meters, Samsung Galaxy S8: 7 meters) regardless of what the statistical method is being used?
2
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1answer
254 views

Understanding OpenLayers? [closed]

I realized a project with OpenLayers 3 some time ago, but now I do not understand anything anymore. I should install any packages? npm install ol. But even that does not work. I now have the ...
1
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6answers
94 views

Seeking topics to be mentioned in beginners guide on QGIS? [duplicate]

Currently I am compiling a FAQ for my company on QGis, since some people feel the need to work more with QGis. I am the person to go to, when some specific problems appear, but I see a need to give ...
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1answer
74 views

Seeking tutorial on Time Slider in Carto?

I want to add a time slider to a map. It looks as if I have to do that via CartoCSS but I really don't know where to start. Unfortunately, I don't understand what all the other posts regarding this ...
2
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0answers
57 views

Cartographic numbering of points on map

Usually when I create maps with a set of numbered points (e.g. numbered locations on the map which link across to a separate table describing these points) I try to number them in a rough "reading ...
-2
votes
1answer
114 views

Loading LIDAR data to POSTGRES and use it with DJANGO [closed]

I have some project at the Faculty and I don't know from where to begin. I have point cloud data (LIDAR data) and I need to make the website with that data on it and with functions for some sort of ...
0
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1answer
2k views

Creating Elevation Profile from Line Shapefile of Contours using QGIS?

I have a line shapefile that contains contour lines. The attribute table of the shapefile has a field that gives the elevation of each line. I would like to draw a line across the contours and get an ...
0
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2answers
108 views

Concise learning resourses for OGC Filters or Filter Encoding Standard (fes) [closed]

When I am doing HTTP GET requests to GeoServer it is fairly easy, but when I need to do http POST request I need to pass XML formatted parameters in the body and for filtering I need OGC filters and ...
1
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2answers
132 views

Open source desktop GIS for high school curriculum?

I am a physics teacher and contemplating to integrate GIS to our high school's curriculum. A de facto software looks to be ArcGIS, which is a proprietary software. I wonder what are open-source ...
1
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1answer
133 views

How much do leaves on/off affect the number of LiDAR ground returns?

We would like to collect a generic purpose topographic LiDAR dataset over a large region in Belgium. Our minimum requirement is to achieve at least 1 point/m² on the ground. Ideally, we would like to ...
0
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2answers
141 views

Button won't work for plug-in in QGIS

I'm learning how to create plug-ins so I've been following the tutorial on this website https://www.qgistutorials.com/en/docs/building_a_python_plugin.html. I understand all of the code and the ...
6
votes
2answers
632 views

Understanding QGIS API documentation

Is there an introduction or guidelines how to read the QGIS API documentation? For example, I want to write a vector layer. A quick search brings me to the API documentation page of ...
-2
votes
1answer
92 views

Seeking GeoNetwork documentation?

I am quite surprised with the lack of solid documentation regarding GeoNetwork 3.4. Is there an ebook or paperback book I could buy, or are there any online resources I can refer to? I am working ...
-2
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1answer
135 views

ArcGis Cemetery Mapping [duplicate]

Im currently doing a cemetery mapping system for my thesis using arcgis, however i dont know how to use arcgis, i dont quite get the tutorials that i watch, i just want to make a simple map that can ...
0
votes
1answer
98 views

Learning MapBox GL basics? [closed]

I am not a coder. However, I am familiar with a lot of the most basic concepts. My background is in the traditional GIS software/mapping industry but I have become a lot more interested in where the ...