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9 views

2 Raster maps Comparison | Difference map? [closed]

I have created two different raster maps from two different models for my area of interest. As you can see, I have classified their values in the attached ranges. I would like to make a comparison ...
0 votes
1 answer
209 views

QGIS : mbtiles data (GeoServer) does not display

I succeed in GeoServer (2.18.1) to set a new mbtiles file. I can see the preview data (OpenLayers view) in GeoServer. Then I try to display the data throw QGIS (WMS). But the data does not display in ...
0 votes
0 answers
4 views

How to import landsat data with python

I tried to import the data using the officially given import_landsat.py but it didn't respond when I ran it on pycharm, I also configured OSGeo4W as the system interpreter for pycharm to make sure ...
0 votes
0 answers
12 views

QGIS 3 Python script don't iterate through raster layers in print composer and saves only one raster layer with different years

I use QGIS3 and I have project with series of heatmap raster layers from different years (Grass_Snake_2005-2024, one raster layer for each year), in this project I set up already map in map Print ...
0 votes
2 answers
333 views

earthengine upload table does not seem to be working

Back in October, I wrote a script to do a daily task...TLDR --> it modifies a shapefile, moves it to google cloud storage and then copies from bucket to an asset, so that the shapefile can be ...
2 votes
2 answers
238 views

Trying to use fieldmap to append external featureclass/shapefile to new featureclass using external table for mapping

I am trying to work out a way to populate a series of shape files into a new set of Datasets and feature classes. I have an external table of what the destination feature class field name should be ...
0 votes
1 answer
337 views

Big data and spatial regression: how to make spml more efficient in R?

I am running a spatial panel regression in R using spml from package splm. When I conduct this on about 1/200th of my data, the program executes. But when I try to do so on a third of my data, R uses ...
0 votes
0 answers
9 views

Pointcloud Tools not in Processing Toolbox QGIS 3.36.3-Maidenhead MAC

Pointcloud tools are not showing in Processing Toolbox. I am using the most recent version of QGIS for MAC, 3.36.3-Maidenhead. I see some others have had a similar problem before but no solution. ...
0 votes
0 answers
11 views

Limited mouse options in QGIS 3.2 up

I have just upgraded to QGIS 3.2... from QGIS 3.1.. I have noticed while setting up the system that when a dialogue box opens, the mouse pointer position does not default to the dialogue buttons as is ...
0 votes
0 answers
9 views

Masking a raster with only one value and defining the nodata pixels to 0 only inside the geometry

I want to calculate the coverage area of a raster inside each district of a shapefile. The raster only takes a value of 1 for the covered areas. My Python function below iterates over each row (...
2 votes
1 answer
886 views

Generate tiles from Leaflet polygons

I have a set of shapes drawn in Leaflet (using Leaflet.draw). I need to rasterize these into a tileset and export it because I need to use the images elsewhere. My initial idea was to go through ...
0 votes
1 answer
104 views

Dissolve lines that intersect after attending some dataframe (atributte table) conditions

I need to dissolve all Linestrings from a geodataframe that intersects each other after attending some tabular conditions: 1)have the same ID and 2) have the same opening year. I am working with ...
1 vote
2 answers
249 views

Translating custom coordinate system for MyCoordSysDefs.fme

I have a custom coordinate system that I was confused how to translate it to the MyCoordSysDefs.fme for use in Safe Desktop. Here's how it is represented in the prj file: GEOGCS['GCS_ETRS_1989',DATUM['...
0 votes
0 answers
5 views

How to convert predicted bounding boxes from YOLOv8 to shapefiles

I have adopted the YOLOv8 model to detect cars from an orthophoto. My goal is to convert the predicted bounding boxes to shapefiles so I can view the output in a GIS environment. I have tried several ...
2 votes
2 answers
463 views

Allowing Null-values in Shape field in UPDM feature classes

I am using Esri's Utility and Pipeline Data Model (UPDM) found here and need to add some records with Null-Geometries, that can be updated later when required. The allow null property for shape field ...
2 votes
2 answers
622 views

GeoServer changing raster color as scale changes

I have a Sentinel-2 image published on my GeoServer. When I preview the layer, I can see it changes coloring somehow as I zoom in / out. You can see examples in images below (look at the scale values ...
1 vote
1 answer
495 views

Exporting DXF from Revit to QGIS, loss of coordinates

I'm trying to combine Revit and QGIS. It's mostly about exporting Revit files as DXF and opening them in QGIS. Every file, no matter how I try to work with the projection in Revit (survey point and ...
0 votes
2 answers
73 views
+100

Automatically navigation graph creating

I am recently intrestring in Indoor Mapping, and I came across Mappedin, whose innovative work particularly their data format and SDK impressed me. One of the features of Mappedin is its capability to ...
0 votes
0 answers
22 views

Why is there a difference between Raw and Rendered results?

I saved two images from a Dem Tiff file in two different formats. There is no problem when saved as raw format. However, when you save it in rendered format, something like the second picture appears. ...
3 votes
1 answer
617 views

Reading existing layers from an existing project using PyQGIS

I am opening a QGIS project in a stand-alone Python script, but the existing mapLayers are not being found. The script is below. I am using PyQGIS 3.4 and I haven't been successful at using other ...
0 votes
0 answers
5 views

Add image layer to ecognition

Why, when I add an image layer to ecognition are the objects missing? I have a ecognition project and I did multiresolution segmentation. Now I want to add another image layer to project and clarify ...
6 votes
1 answer
2k views

Turf.js midpoint of line

I'd like to open a popup in on the midpoint of a polyline/linestring in Mapbox GL, like it's the default case in Leaflet. How can I do this via turf.js? If I use centroid/center/centerOfMass it will ...
0 votes
0 answers
7 views

Where to find the pg_service.cnfg file for an existing QGIS project with PostgreSQL connection? And how to make the file if the service name is blank?

I have an existing QGIS project to work on and the layers are from a postgresql connection. I want to open this project on QField on Android but it couldn't load the layers because it requires ...
0 votes
1 answer
28 views

Adding borders to 2D plot in ggplot2

the displayed code produces the following plot with ggplot2: plot_DK <- ggplot(coordinate_grid, aes(coordinate_east, coordinate_north, fill = model1_predictions)) + geom_tile() + ...
0 votes
1 answer
366 views

Sampling raster data and classifying the pixels

I'm completely new to python usage in GIS. I'm working with Sentinel images and want to sample the pixels of raster file only in the places which are represented by the geometry of the truth data ...
3 votes
1 answer
831 views

How to compute weighted mean centroid of lat+lon points taking into account spheroid

I have a bunch of points (lat+lon coordinates). Each one has a weight. I would like to get a weighted mean centroid of the points, taking into account the spheroid (as my points are scattered across ...
0 votes
1 answer
21 views

QGIS crashes when I set the labels

I'm writing a script for QGIS, using the Python console. I noticed that when the script processes the rows about the label settings, when I delete the layer "terrFiltrati", QGIS crashes and ...
0 votes
1 answer
174 views

R lm.LMtests error in lag.listw(listw, y, zero.policy) : y not numeric

I am working on running an OLS on a shapefile and running tests on the residuals of that OLS where I am getting an error. library(maptools) library(sp) library(spdep) library(lmtest) library(...
5 votes
4 answers
3k views

Changing Mouse Wheel zoom direction in QGIS?

I'm just starting to learn QGIS. I'm starting with the basic simple things. Coming from an ArcGIS background, I am used to the mouse wheel action zooming in and out the default ArcGIS way. QGIS ...
1 vote
1 answer
1k views

Error calculating LST in QGIS

I was using QGIS to calculate the LST of a city from Landsat 7 and 8 datasets. I was following online formulas to do the computation but I kept getting weird results (i.e. -17~62°C or 44~71°C; which ...
1 vote
1 answer
16 views

Google Earth Engine script for cropping land use Image collection to shp and producing csv aggregate output

I'm new to Google Earth Engine and hoping to get some help. I'm using ee.ImageCollection("GOOGLE/DYNAMICWORLD/V1") to look at land use types (specifically tree cover - band 1) within a ...
1 vote
0 answers
7 views

Locally render a tile exactly like mod_tile/renderd would

I'm slowly learning the machinery involved in running a custom tile server for openstreetmap. I have a fully functioning setup more or less straight from this switch2osm guide but I'm curious about ...
1 vote
1 answer
675 views

How do I manipulate size of point symbols in Legend for ArcGIS Pro?

I have a legend where the point symbols are coming out really small, and I want to boost up their size but leave polygon and line symbols as-is. I get that I can manipulate the polygon height and ...
0 votes
0 answers
26 views

Cannot load a geodataframe (from a shapefile) into PostgreSQL (as table) via SQLAlchemy

I would like to publish a shapefile from a directory to GeoServer by using the Python library geoserver-rest. I understand that in order to do so, I need also to load the shapefile as geodataframe (...
1 vote
1 answer
1k views

R levelplot: How to shade some pixels out to show statistical significance

I am posting this also on stackoverflow because the topic is in the middle between GIS and R programming. I need to include statistical significance in a map in R using rasteVis, which is based on ...
0 votes
1 answer
650 views

Why is my click region for a circle layer in Mapbox offset to the right?

I'm using mapbox gl js in a react framework to create we web map app. I have added a circle layer to the map and have a problem where the clickable mouseenter area of the circle is offset to the right....
14 votes
1 answer
789 views

Remove reference to raster layer object PyQGIS

I am developing a plugin to load a set of raster files on QGIS. When there is a large number of files to be loaded, the main UI freezes. So I use QgsTask to move the creation of raster layers to a ...
5 votes
2 answers
101 views

Selecting unsymbolised features in QGIS

In QGIS 3.34.5, I am symbolising a large area of point features extracted from OpenStreetMap. I currently have an ELSE clause that shows me the features that have not yet been symbolised in a large ...
6 votes
3 answers
1k views

Keeping only internal borders in QGIS

I'm looking for the QGIS equivalent of TopoJSON's mesh function which goes through a vector layer and only keeps borders that are shared between multiple features. Here's an example of the output -- ...
3 votes
2 answers
195 views

Shortcut to activate and deactivate a layer filter

I'm looking for the fastest way to filter and unfilter a layer in qgis 3. My current workflow is too tedious: right click on layer / filter / write filter or delete filter My final goal is to see ...
9 votes
1 answer
1k views

GRASS v.clean tool in QGIS gives empty output

I am trying to run v.clean in QGIS 3.10.7. I have a 2D LineString dataset saved in GPKG format and I want to run v.clean to clean up some messy topology. But whenever I run it, I get the same result - ...
1 vote
0 answers
13 views

when moving a vertex node, change the shape of each polygon that contains this node

I digitized a suveyors map, creating many polygons in a 1:7000 scale, so that all points are almost on there correct location. I switch to 1:1000 scale, both image and gqis screen and want to fine-...
2 votes
1 answer
193 views

Problem running GRASS 8.2 from R

I am attempting to use initGRASS in R and getting an error I haven't found in other answers so far. The error is as follows: sh: g.version: command not found Error in system(paste("g.version"...
0 votes
1 answer
666 views

GEE: edit location of "Layers" + "Map/Satellite" selection widgets

I have a GEE app with a left/right split map. Per default the "Layers" + "Map/Satellite" selection widgets are located on the top-right. For the panel on the right that's alright, ...
0 votes
0 answers
22 views

Filtering geodatabase by feature classes on ArcGIS Online

I currently have a geodatabase zip file published in ArcGIS Online that has around 35 layers. Out of these I am only interested in specific feature classes. How would I go about doing this on ArcGIS ...
0 votes
1 answer
165 views

Creating store with COG/GS GeoTIFF through REST API

I am currently facing challenges with setting up a Cloud Optimized GeoTIFF (COG) store in GeoServer using a Python script. I have been successful in creating a COG store manually through the GeoServer ...
0 votes
0 answers
7 views

API REST import geoserver/rest/imports not creating Grid subset bounds

I'm using /geoserver/rest/imports/ to import a folder with shapefile (.shp .dbf .shx and .prj). It works well but the bounding boxes are dynamic. I need to calculate the Bounding Boxes like in the UI ...
0 votes
1 answer
470 views

Google Earth Engine - slope

I am trying to use the pre-built function of GEE for calculating the slope of the terrain, but I cannot really understand how the function works, since the documentation is also not really helpful. ...
1 vote
1 answer
256 views

Iterate through an imageCollection to subtract value of the previous image in GEE

I am using the Sentinel-2 time series to identify the timing of forest disturbances using Google Earth Engine. I calculated the Normalized Burned Ratio (NBR) Index and I filled in the gaps in the time ...
0 votes
0 answers
25 views

Error 00539 Invalid Field... spelling correctly?

I'm attempting to calculate a field with an expression, that will detect the number of stores per 100,000 people. It keeps sending back an error stating I have an invalid name... but it's the same ...

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