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Questions tagged [references]

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

0
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0answers
18 views

Free lidar data to study forest structures and dynamics. Is it possible? [on hold]

I am new to LiDAR and no one I know works with it either, so I am hoping some one would be willing to throw some ideas about what LiDAR data could be used for and how to go about it. For my thesis at ...
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0answers
10 views

Automating Export of different parts of layout? [on hold]

I am trying to export different maps using "Data Driven Pages". For every Data Driven Page, I need to turn off one layer (the same as the Data Driven page number) and keed the rest layers on, export ...
0
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1answer
38 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)?
-1
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0answers
8 views

Seeking tutorial on using ST_Extrude? [closed]

I'm looking for a basic tutorial on how to apply a z figure to a point table and use St_extrude to create some 3D geometry. Something I can display in ArcScene. I've found Using ST_Extrude in ...
0
votes
1answer
23 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 ...
0
votes
0answers
9 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 ...
0
votes
0answers
14 views

ArcGIS Pro Add-in development using C# Winforms [duplicate]

This question is more of a general rather than technical. I am new to this Add-in development. I already have worked on Winform application development on C#. Now I am assigned a task to build an Add-...
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0answers
6 views

MTMF classification with ENVI 5.1

How do I classify a multi-spectral raster (Landsat 8 OLI) with MTMF classification? A tutorial in Harris Geospatial is still using the old version of ENVI (4.7 I think), because I tried to follow it, ...
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votes
2answers
43 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 ...
3
votes
0answers
88 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?
-1
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0answers
37 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
34 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
vote
1answer
70 views

Seeking shapefile for crosswalks in city?

I saw an article in one of ESRI's publications (not sure which one) about how an app was created to help parents and children find the safest route to walk to and from school. I would like to recreate ...
1
vote
1answer
24 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?...
1
vote
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
vote
1answer
291 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
votes
2answers
345 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
votes
2answers
289 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?
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6answers
86 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 ...
0
votes
1answer
37 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
votes
0answers
48 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
69 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
417 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 ...
-1
votes
2answers
45 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
vote
2answers
105 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
vote
1answer
84 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
votes
2answers
59 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 ...
4
votes
2answers
257 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
64 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
votes
1answer
68 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
72 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 ...
-2
votes
1answer
133 views

Seeking Tutorials on Geometric Networks [closed]

Does anyone know of any tutorials I can download online or anything of the likes that I can use to better my understanding of how to use or create the geometric network? I'm working on a sewer ...
3
votes
1answer
89 views

Seeking training plugin for QGIS?

I am looking for training app installed inside QGIS, which can be used for training purposes. I mean, a plugin like an e-learning software than can drives you directly inside the QGIS software ...
3
votes
1answer
222 views

Choosing spatial statistical tool in ArcGIS Desktop?

When using Esri's Spatial Statistics toolbox I find the tables on the Spatial Statistics toolbox sample applications page to be very useful. However, there are multiple rows in the tables where ...
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0answers
41 views

How to process wkt references saved in .xls to create coordinates

I downloaded data from CDRC about population flow but the references are saved as a wkt inside the tables. Does somebody know how to get seperate reference colums so I can use it in XY Line function??...
2
votes
1answer
51 views

How could we get presentation of FOSS4Geurope 2017?

I was to the FOSS4Geu 2017 and I could not see all the presentation I would to see. So, as the great team try to get all of them, I thought it's possible to get it throught the website. Unfortunatly ...
1
vote
1answer
828 views

Are there any free online GIS courses based around using QGIS? [duplicate]

Does anyone know of any MOOCs for learning GIS which use QGIS for any practical exercises? I've been finding QGIS a fantastic tool for work, but would like to understand it and GIS principles on a ...
4
votes
1answer
191 views

Resources for Arcpy Field Mappings String Syntax

I need to edit an existing python script to add an additional field to a field mapping function. This field mapping function does NOT use the arcpy field mapping object--it instead uses a structured ...
7
votes
3answers
2k views

Learning resources for PyQGIS? [closed]

I'm looking for some resources for learning PyQGIS. It would be interesting having a collection of books or websites that provide some practical examples for learning the syntax or accomplishing ...
0
votes
1answer
793 views

Looking for sample code or documentation for gpxpy waypoint extension data?

I am translating some of my Ruby scripts that manipulate GPX files into Python so I can use them from within QGIS but I can't find any detailed documentation. The readme on github gives a few very ...
1
vote
1answer
462 views

Learning JavaScript for GIS? [closed]

How to start learning javascript for GIS? Should learn JS first and then try to use it for gis or there is any way to learn JS for GIS from beginning? What is the site for learning js for GIS ...
2
votes
0answers
225 views

Understanding relationship between heading, pitch, roll to phi omega kappa? [closed]

I am trying to find some good online reference (formulas, perhaps a script) on the relationship between heading, pitch, roll to phi omega kappa. In my current situation i receive camera orientations (...
1
vote
1answer
976 views

Where is QGIS Server Tutorial?

I'm looking to get QGIS Server working on a Mac with El Capitan OS. When I try to access this link: http://www.qgis.org/wiki/QGIS_Server_Tutorial it gets forwarded to this link: https://issues....
1
vote
0answers
29 views

Interactive map for linguistic purposes [closed]

I would like to learn how to do dynamic/interactive maps for users interested in linguistic issues. In short, the idea is that a user could choose for instance between two syntactic constructions (Put ...
1
vote
0answers
45 views

What is the best way NDVI can be used for assessment of remediation level of ecosystem (after nuclear accident)?

I am thinking about ways to assess efficiency of various bioremediation methodologies and self-remediation of an ecosystem polluted with nuclear waste. I would like to use NDVI as an assessment ...
0
votes
1answer
788 views

Map Routing in OpenLayers 3

I am searching for a solution for my current OpenLayers 3 application. We are now in need of adding what seems to be map routing. I have a small area, a building and a parking lot (about 5 or 6 acres) ...
1
vote
0answers
45 views

Serving geospatial files from a file system using GeoWebCache

Is there a primer somewhere for how to go from having various geospatial files (such as shp, dbf, gdp, geotoff, geojpg, geopng) to being able to serve them to a map via service calls to GeoWebCache ...
2
votes
1answer
555 views

Is there any documentation on how to change the user interface of Potree?

Has anyone found or created any information regarding the different user interfaces of Potree? I have created LiDAR portals using the LAStools laspublish tool to create Potree sites, but cannot see ...
1
vote
0answers
205 views

Understanding ArcSDE versioning tables? [closed]

I have studied about ArcSDE schema and SDE tables in Oracle, MSSQL and also PostgreSQL. But after my research I still have many questions that I haven't been able to find out. Initially I want you to ...
0
votes
1answer
4k views

Multiple Markers?

I'm working with OpenLayers 3.20. I'm able to add one marker on click. And then when I click somewhere else, that previously placed marker is destroyed and the new marker gets placed. Problem is ...