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Cannot get OL measurement in km/km2 with the map view in EPSG:4326

I am using the Openlayers mouse and measure using vector styles examples plus some OL controls (eg. zoom slider) and my map view projection is in EPSG:4326 as follows: const map = new Map({ layers: [...
Gery's user avatar
  • 2,140
0 votes
2 answers
27 views

Remove null images in an Image Collection

This is the code to generate an 36 length imagecollection from 2020 up to 2022: var months = ee.List.sequence(1, 12); // Create an image collection for each month var monthlyImageCollection = ee....
MohammadJavad Soltani's user avatar
0 votes
0 answers
16 views

Hexadecimal coordinates for Tile Service in ArcGIS Pro

I have an XYZ tile service URL that provides PNG tiles for requests in the following structure: L{z}/R{y}/C{x}.png. However, it appears that the service requires different types of coordinates, which ...
meteergen's user avatar
  • 375
0 votes
1 answer
32 views

No result from algorithm r.stats in QGIS

I don't understand why algorithm r.stats doesn't give me result in the sidepanel (show result); the error is 'impossible open the file' What can I do to solve the problem? I show you: Versione di QGIS:...
Nicolo Cappelletti's user avatar
1 vote
1 answer
78 views

the main difference between using sentinel-hub API and free STAC API for getting to sentinel 2 images [duplicate]

I'm a bit confused. What is the main difference between using the Sentinel Hub API and the free STAC API for downloading Sentinel-2 satellite images? Are there any advantages to using the paid ...
nearliet's user avatar
0 votes
0 answers
27 views

Creating Bezier Polygons (Spline Polygons) using Survey123 for Arboriculture Surveys

I’m working on a Survey123 survey to capture the tree canopy based on the centroid (Lat, Long), Norh, South, East and West distances in meters. The idea is the mobile worker locates a point in the map ...
GaliGIS's user avatar
  • 39
1 vote
0 answers
59 views

Removing the split between merged polygon in QGIS

I merged two polygons within one shapefile and then aligned all the vertices so that they were adjacent, but how do I remove the former edges that bisect the polygon so that the geometry is continuous?...
MapDeath's user avatar
  • 363
0 votes
0 answers
15 views

Optimizing batch image exports in Google Earth Engine

I'm creating a pipeline to train a machine learning model to create flooding probability maps at national scales using data in GEE via the Python API. For a given known flood event, I assemble data ...
Nissim Lebovits's user avatar
3 votes
4 answers
133 views

Dropping nearly-identical point locations with GeoPandas

I have a GeoDataFrame (gdf) of several thousand point locations. I want to drop duplicate records from the gdf - that is, records with the same attribute information and the same location. However, ...
neirbom9's user avatar
  • 155
0 votes
0 answers
17 views

Generate XYZ tiles (MBTiles) from MapTiler QGIS plugin map not showing any labels

I'm fairly new to QGIS, but i already had success generating MBTiles in other projects. This time my base layer is from the MapTiler plugin (layer name : MapTiler Planet). I had success doing a print ...
Gtb's user avatar
  • 1
1 vote
1 answer
64 views

COG TIFF multiband in Leaflet

I am attempting to display a 4-band Sentinel image where the RGB bands are the first 3 bands, each represented as uint16. Reason: Currently viewers like COGEO tinyurl.com/3jy9jjcy do stretch each COG ...
scriptDaddy's user avatar
0 votes
0 answers
41 views

the main difference between using sentinel-hub API and free STAC API for getting to sentinel 2 images [closed]

I'm a bit confused. What is the main difference between using the Sentinel Hub API and the free STAC API for downloading Sentinel-2 satellite images? Are there any advantages to using the paid ...
nearliet's user avatar
0 votes
0 answers
10 views

Label conflict attribute prioritization in ArcGIS Pro

Is it possible to resolve label conflicts within a feature class using an attribute value? I have two points whose labels would overlap. These points have different numeric attributes and I'd like to ...
Elana's user avatar
  • 1
0 votes
1 answer
43 views

Adding Google Earth program into ArcGIS Pro [closed]

Is it possible to program Google Earth into ArcGIS Pro somehow as to avoid flipping between screens of ArcGIS Pro and Google Earth back-and-forth?
Holden_Schaefer's user avatar
0 votes
0 answers
31 views

Using input parameter in address locator field map

I am trying to use input street address and zipcode variables defined using GetParameterAsText in an address locator script tool in ArcMap/Catalog. The locator works if I hardcode the actual field ...
Paul DiGirolamo's user avatar
0 votes
0 answers
40 views

GeoServer GetFeature returns Features outside of Bounding Box parameters

I was wondering if someone knows how the bounding box works in a GeoServer GetFeature request. I'm getting points outside of the bounding box in my results. The url below has been changed for ...
zakariah1's user avatar
  • 201
0 votes
1 answer
23 views

Values of ordinary kriging with gstat and terra are equal as the input data

I am trying to interpolate a raster using ordinary kriging. When I use the data from meuse to try the model, I get an interpolated output. However, when I run the code with my own data, the ...
Raksha's user avatar
  • 3
0 votes
0 answers
12 views

Clip the the water body using the NDWI to calculate Turbidity only for the water for Sentinel-2 image collection [closed]

I am trying the study a water reservoir using Sentinel-2, First I want to calcuatet the NDWI to find the accurate area on the water body .. Then I want to clip the area body to calcuate the Turbidty ...
almegdadi's user avatar
0 votes
1 answer
19 views

Sampling 10% of cells in terra raster in R

(I am new to spatial analysis so please excuse if this is an obvious question) In terra, I have a SpatRaster of the world at 1km resolution (3006072000 cells, 5 layers). I would like to randomly ...
LeeJonesEco's user avatar
2 votes
1 answer
82 views

Create a raw SQL statement ready to be used in PostGIS from a geometry in QGIS

Given an existing geometry in QGIS 3.28+ (e.g. from a temporary scratch layer), is there a quick way (i.e. with the lowest amount of user actions) to generate the PostGIS geometry definition (raw SQL ...
swiss_knight's user avatar
  • 10.1k
0 votes
0 answers
38 views

QGIS Browser Panel Not Displaying all files

I'm new to QGIS and trying to 'repair data source' can't see the file I want to access in the browser panel. It's there in File Explorer but in the browser panel it's in a folder with a 'squiggle' ...
John Graves's user avatar
0 votes
0 answers
15 views

Pydev Remote Debug Breakpoints with QGIS Stops in _string_ instead of the python file

I tried to use the remote debugger with PyDev but when I reach the breakpoint, I end up in a file name "string" that seems to be internal commands: To set up the remote debuger, I followed ...
Biorix's user avatar
  • 31
1 vote
1 answer
51 views

Problem in creating diagrams for every single point in qGIS

I have a shapefile layer with locations of dead birds, their total number is about 180, the locations where they were found are about 70. The shapefile contains the Latin name of each of the birds, as ...
Nikolay Yordanov's user avatar
0 votes
0 answers
10 views

SRID in ST_Geometry fails to update with ‘Define Projection’ but Esri feature class CRS does update

I need to re-define (not reproject) a CRS for a feature class in an enterprise geodatabase (SQL Server). When I use the 'Define Projection' in AGS Pro (2.9.5), the CRS shown in Esri states the proper ...
Rex's user avatar
  • 576
0 votes
0 answers
15 views

Low reflectance values

I use DJI P4 multispectral. Here is the command I gave in opendronemap software. –dem-resolution 1.5 --orthophoto-resolution 1.5 –orthophoto-png --dsm –radiometric-calibration camera –texturing-skip-...
SS101's user avatar
  • 1
3 votes
1 answer
52 views

How can I mask values for black outline around imagery using ArcGIS Pro?

I pulled some NAIP imagery off the web. There is a black outline that I am trying to get rid of around each image. I tried to change the symbology to not include the zero values for each band but it ...
ZephyrZ's user avatar
  • 89
0 votes
0 answers
7 views

Gmdx models in ERDAS Imagine [closed]

I need some gmdx models and some guidelines on how to build it I searched a lot but couldn't find useful resources if someone can recommend some resources.
alafy's user avatar
  • 1
7 votes
2 answers
154 views

QGIS functions: aggregate and array_foreach not working for vertices

I have two layers as the whole project in EPSG:4326: polygon layer of countries linestring layer of routes I want to concatenate the country names (those are stored in "name" attribute) ...
Kluuboo's user avatar
  • 71
0 votes
0 answers
8 views

Region of Interest selection error in Semi-Automatic Classification Plugin (Error: unable to calculate)

Yesterday I upgraded the Semi-Automatic Classification Plugin. Immediately after doing this, the automatic ROI selection is giving me that error as shown in the attached image. I have tried to ...
Aim Banda's user avatar
-1 votes
0 answers
32 views

QField plugin error

I'm using QGIS 3.32.1-Lima I've been prompted to upgrade plugins but now get this message : Couldn't load plugin 'qfieldsync' due to an error when calling its classFactory() method How can I fix ...
Madeleine Scott's user avatar
-1 votes
1 answer
35 views

How to implement SSL/HTTPS for Tomcat/GeoServer on AWS EC2 instance (Ubuntu)?

I installed GeoServer 2.18 on my AWS EX2 instance, by Tomcat. Now how do I implement SSL certificate/https on Tomcat, so the WMS/WFS reuqests become secure? or change some setting in GeoServer?
Samvil_Geosensitive's user avatar
0 votes
0 answers
42 views

Rule Based Line Symbology causing weird behaviour changes on zoom

I'm fairly sure this is an actual bug and have raised a ticket in Github, but it hasn't been looked at yet and just would to see if anyone else has any other ideas that I can try, or can see anything ...
jteez's user avatar
  • 102
0 votes
1 answer
36 views

QGIS expression, format number to number of decimals [duplicate]

I am using QGIS to plan a cable layout. Knowing the resitance per metre in the cables, lenght of cables and the current draw of each site, I can calculate the voltage available at each site. The ...
MortenSickel's user avatar
  • 3,686
1 vote
0 answers
36 views

Adding photo in QGIS Attribute table and exporting in Excel

I want to export an attribute table in Excel with photos visible in table but in Excel in QGIS is visible like path-link, but I want to be a photo. Any idea?
Tania D.'s user avatar
1 vote
1 answer
40 views

QGIS DEM (Raster) merge: errors

I'm trying to merge 4 tiles (ASC) of a French 1m digital elevation model. Files are loaded in QGIS, they bear no errors, value range is coherent. Merging comes with errors and the result is a raster ...
Gilles's user avatar
  • 395
0 votes
0 answers
25 views

Error when trying to import a .dwg file in QGIS 3.34.2

I'm trying to import a .dwg file from a client into QGIS using Import/Export -> Import layers from DWG/DXF. Then I'm selecting the correct source drawing & target package, however when I press ...
Harry's user avatar
  • 1
-3 votes
0 answers
76 views

Creating line in QGIS [closed]

How to create in QGIS line like this (without this circle on begining) :
Piotr Pogoda's user avatar
1 vote
1 answer
36 views

How to use the 'sqlite' dialect in ogr2ogr queries when one of the GeoJSON property fields is "id"

I have an example GeoJSON, and I would like to use it as input to an ogr2ogr command. I aim to generate a new file with positive integer feature ids, as described here. The example GeoJSON, src....
zabop's user avatar
  • 1,810
-1 votes
0 answers
11 views

Google Colab giving error about properly installed module rasterio [closed]

ImportError Traceback (most recent call last) <ipython-input-22-c832be536622> in <cell line: 4>() 2 import rasterio 3 import geopandas ----> 4 ...
Vaibhav's user avatar
3 votes
1 answer
59 views

How to speed up ST_Union PostGIS query for complex problem

I'm fairly new to working with PostGIS and have experienced the issue of extremely long runtimes when working on my data. Here's what I'm trying to do: I have an infrastructure dataset that is made up ...
Felix_geospatial's user avatar
1 vote
0 answers
32 views

Converting Leaflet polygon to GeoJSON?

I have the following piece of code of my Leaflet application (Typescript): getPolygonMarker(): GeoJSON { let itemShape: any = [ wktToGeoJSON(item['contour'],) ]; const p = new ...
smartmouse's user avatar
3 votes
1 answer
87 views

Combining multiple Polygons into one MultiPolygon in QGIS

QGIS 3.34.3 has a processing function "Multipart to singleparts". But what about the other way around? What is the easiest way to create a MultiPolygon from several polygons?
christoph's user avatar
  • 5,525
1 vote
0 answers
27 views

Calculate geometry, coordinates precision in ArcGIS Pro

I'm using ArcGIS Pro and recently encountered an annoying issue using Calculate Geometry with coordinates. Let's say I create a point with DDM coordinates: 47 07.9000000E, 22 04,6000000N. If I check ...
Karvlad's user avatar
  • 11
3 votes
1 answer
169 views

How do I merge/dissolve two polygons within one shapefile in QGIS?

I have a shapefile composed of many polygons. I want to merge/combine/dissolve some adjacent polygons that I have selected within the shapefile into one polygon without any slivers or lines left in ...
MapDeath's user avatar
  • 363
1 vote
1 answer
30 views

While exporting the rasters using rioxarray, nodata value is undefined after the mask

I have used xarray to open the netcdf file, and using rioxarray exported the raster as a .tif file. However, the exported raster doesn't have definition for nodata value, and hence, the GIS software ...
hillsonghimire's user avatar
0 votes
0 answers
24 views

OpenStreetMap rendering [closed]

I'm confused with the rendering sequence of the OSM objects. As example: two ways k="leisure" v="park" and k="natural" v="water" Important remark: Areas are ...
user12694877's user avatar
0 votes
0 answers
35 views

QGIS: Snapping QGIS stopped working

Suddenly snapping stopped working correctly and no longer follows the rules I set, "sticking" to distant or even non-existent vertices/segments. Even if I change the parameters (layer to be ...
IL DOGE's user avatar
1 vote
1 answer
32 views

Resample Raster in PyQGIS with Median Approach

I have a raster file with a spatial resolution of 2m x 2m. I want to resample the raster from a 2m by 2m resolution to a 25m by 25m resolution in PyQGIS. My approach is using the Nearest Neightbour to ...
eagleadmiral's user avatar
0 votes
1 answer
69 views

Link two polygon records

So I have one feature class with many different polygons in it with different xy coordinates, different shapes, and different records all in the same attribute table. Some polygons share common ...
TheOmoSlide's user avatar
0 votes
0 answers
22 views

Saving pop-up configurations in ArcGIS Pro

I would like to re-use a pop-up that has been previously configured in ArcGIS Pro. Is there a way to do this? I use ArcGIS Pro 3.2
JMVDA's user avatar
  • 389

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