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3 views

Turn point cloud into rasterized mesh with PDAL-C and it's API

I'm triyng to turn a point cloud into a mesh that's rasterized like the code in c# below describes but I have come to the problem that the filter delaunay does not work with a raster, only with a ...
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0answers
12 views

PyQGIS Updated field is null

I am going to calculate SPI values for a field in PyQGIS. I created expression for the standardized the values. Stdev and mean values getting correctly. But after update the layer, the new field is ...
0
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0answers
3 views

Limitations of geometric networks in ArcMap (Cost Calculation)

I am working with a point dataset and a street network within a geographic region. This region is divided in sub-divisions for which I want to calculate single networks within their area. Every single ...
0
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0answers
6 views

PyQgis - Loading postgis layer within active layer extent

Hi I think what I am trying to do is quite simple..however I couldn't figure out how to do this. I am fairly new to postgis and pyQGIS. I am very grateful if you could help me please. I've created a ...
0
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1answer
5 views

How can I create a multiband raster from singleband raster values?

Counter-intuitive to all the other questions about splitting raster bands, I would like to split my single-band raster into a multiband raster stack based on the values given in each pixel (range from ...
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0answers
16 views

Writing properties corresponding to a given schema within the GeoDataFrame.to_file() method?

I currently have the following code to write a multipolygon Shapely feature to a GeoPackage: import fiona myschema = {'geometry': 'MultiPolygon', 'properties': {'id': 'int'}} with fiona.open( '/...
-1
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0answers
10 views

GeoServer connection refused. GeoNode docker installation

Expected Behavior: Deploy GeoNode on http://localhost/ after basic installation: https://docs.geonode.org/en/master/install/basic/index.html Actual Behavior Nginx logs: nginx4my_geonode | 2021/09/16 ...
3
votes
1answer
12 views

QGIS Model Designer - populate input options with values from postgresql database

Is it possible to populate an input field (enum etc.), with options that are obtained from postgresql database? Similar to how you can already select database tables from a dropdown, would it be ...
0
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1answer
5 views

Use Image filters for WMS Layers in ArcMap

In QGIS, I can use image filters / color rendering to adjust the display of WMS Layers (see image below). This is very useful, since WMS Layers are images and there symbology cannot be changed. In ...
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0answers
12 views

Mosaic Sentinel 2 images in QGIS

I am trying to mosaic Sentinel 2 images of Goa region. I have downloaded 03-05-2021 data from Earth Explorer. I am using SCP plugin to mosaic images. I got the mosaic for four images. But when I tried ...
0
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1answer
15 views

How to buffer around all borders of EEZ regions in QGIS?

I have a layer containing points (in yellow) and a layer containing the EEZs of all countries (as polygons, its geometry is MultiPolygon). See the image below: What I would like to do, is to create a ...
1
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0answers
11 views

GeoServer - Get Feature URL not UFT-8 which leads to an error

I'm cascading an external WFS to my own wms and ran into this. The external WFS uses å in a property name. Which the geoserver has no trouble reading into my layer and I can see the geometrics in a ...
1
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0answers
11 views

Editing WFS-T Layers in ArcGIS

I created a WFS-T Service via Mapserver Software "GeoServer" I tried to edit the layer in QGIS and it worked perfectly. Now I want to edit the data in ArcMap 10.4 but it seems impossible. I ...
1
vote
2answers
18 views

How to connect the points (bus stops) to the near closest points on lines (height profile) to determine their height profile

I am doing my bachelor thesis with QGIS program and I need some help please. I have tried until now to get the elevation profiles of the bus stops. But these are outside the bus line as shown in the ...
0
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0answers
9 views

Export Folium map as KML/KMZ

I have a Folium map with several elements such as circles, markers and polylines for routes as shown below: I have a requirement where this map can be exported as KML/KMZ file for the user. I am not ...
0
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0answers
12 views

Pan-sharpening Landsat 8 with 5 bands in Google Earth Engine

I am trying to pansharpen Landsat 8 image in Google Earth Engine which I have achieved using the rgbTohsv and hsvTorgb again but now the issue is that I have to compute NDWI after that yet the code ...
0
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0answers
16 views

Get the properties of highlighted features when de-highlighting one of them in OpenLayers?

this.map.on('singleclick', event => { const feature = this.map.forEachFeatureAtPixel(event.pixel, (feature) => { console.log(feature); return feature }) if(feature ...
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0answers
13 views

Make point renderer in ArcGIS JavaScript to show all points at small scale

I am making an online map using ArcGIS JavaScript 4.20. I have a polygon feature that I want to render as points (I have points all over Norway, not just as this example): I am using the simple ...
0
votes
1answer
13 views

How to generate assetId names in Google Earth Engine?

I want to export some images to my assets inventory in Google Earth Engine. To do this I want to generate assetIds automatically so the whole exporting operation will fit in a for loop eventually. (...
0
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0answers
22 views

Selfmade XYZ Data can't be loaded by GRASS Algorithms

I'm trying to use my own measurement data for multiple GRASS algorithms in QGIS. When I use a 1m raster from the internet everything works perfect. But if I use my own data I get an error stating that ...
2
votes
1answer
26 views

Extract coordinates from GeoJSON file in OpenLayers

I'm trying to extract coordinates from GeoJSON file . I tried these line of code but I didn't have result in the console. <script type="text/javascript"> var vectorLayer = new ol....
0
votes
0answers
34 views

Path or line conditions

I want to create a path\line between 2 points but i don't want a straight line. I need a line with conditions, for example avoid going trough buildings. How do I create a line\path between 2 point\...
0
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0answers
13 views

Intersection of two Feature Collections in GEE

I am trying a very easy problem in GIS, but I cannot deal with in GEE. My goal is to get a resulting FeatureCollection with two properties (VH and class) initially contained in two different ...
0
votes
1answer
13 views

Google Earth Engine: Extract percentiles from raster by polygons

I have an image with land surface temperatures (LST) and polygons with administrative boundaries (adm3) and want to extract and export spatial statistics as a shapefile of said polyogns so that each ...
0
votes
0answers
17 views

Extract by mask giving ERROR 010024

I have a large orthomosaic image with a fishnet grid overlaid on top. I am trying to cut the image into the grid sized pieces and follow their ID. So far the best way to do this I've found is using ...
0
votes
0answers
18 views

Selecting within feature which are in one polygon [duplicate]

I have a polygon which has features within it (inside it). It want to select these within features so that I can delete it. These are all in a single polygon layer. I have tried QGIS's select by ...
0
votes
0answers
22 views

Finding mean and stdDev of vector layer field using PyQGIS [duplicate]

I am going to standardized a vector layer field in Python console in QGIS, for that I want to get mean value and stdev value of the field. How do I find mean and stdev in using PyQGIS. I tried this. ...
1
vote
0answers
22 views

Dynamic breaks of legend text in text in QGIS Atlas 2

I have tried the solution found in Dynamic breaks of legend text in QGIS Atlas I am using QGIS 3.10.6-A Coruña. I have attached a screengrab below. I use the "wordwrap" expression and it ...
1
vote
0answers
10 views

Rendering three-composition raster map with ternary colormap [closed]

Say there are three raster maps, representing percentages of sand, silt and clay respectively. The three values for each cell are hence summed up to 1. I want to use one raster map to characterize the ...
0
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0answers
27 views

Layer disappear when change render type in symbology

My layer disappears when I change from "linear" to "exact" in interpolation field, after change render type from singleband grey to singleband pseudocolor. The CRS its ok. This is ...
0
votes
1answer
15 views

GEE: Filtering calendar range using mean tmin Daymet temps when "winter" spans two different years

I am working in Google Earth Engine. I am taking the mean tmin for winter months from Nov to Feb. I am doing this for many years and I have taken this approach for calculating mean tmins over spring ...
0
votes
0answers
3 views

Mosaic multiple ASTER images from different years to cover study area?

I have 4 ASTER_L1T datasets, 2 from Sept 1, 2006 and 2 from Aug 22, 2000 that cover my study area. I am wondering if I can mosaic these images even though they are from different days/years. They were ...
0
votes
1answer
30 views

Make feature class from index of list member

I have a list. each member of my list is collection of FID. I would like to create feature class with their index name.How can I do this? sourceFC = "E:/gis payannameh/TABU search/data/...
0
votes
2answers
25 views

Loop terminates prematurely in R - replacement has length zero

I managed to create a for loop in R with my rudimentary skills, and it works to an extent. I get the error "replacement has length zero", which I've seen in other questions but for loops ...
0
votes
0answers
12 views

Rasterize multiple polygons and calculate average

I have a vector layer that contains many overlapping polygons, each containing a "Value" in the attribute table. I am trying to rasterize each polygon as an individual raster layer, and then ...
1
vote
0answers
24 views

QGIS: How to export Coordinates of Polylines of a Layer with Lat/Long Scheme instead of Long/Lat?

I want to export the line coordinates of several features of a layer into a CSV file. This is easily possible with Export -> Save Selected Features As... and choosing Geometry: AS_WKT: However, ...
0
votes
0answers
18 views

Select points on one side of the road Overpass API? [duplicate]

The query I have at the moment selects both sides of the road and finds alternative roads that connect with it. I'm looking for a way to select only right side or left side in a road. {{geocodeArea:...
0
votes
0answers
9 views

Why are columns in a GeoDataFrame supposedly 'missing" when the set_index method is called?

I am trying to use the NetworkX package in Python to find the shortest route between two points along a road network. Rather than straight lines between nodes in the road network, I need my script to ...
0
votes
0answers
11 views

Changing the interface language on the Input app (iPhone)

A while ago, I downloaded the Input app for my iPhone (iOS 14.8). The interface language is set to an Asian language, and I can't figure out how to change it. I've tried to delete it and reinstall, ...
0
votes
0answers
12 views

Export all feature classes in a feature dataset to shapefiles with ArcPy

I'm trying to export all feature classes within a feature dataset as shapefiles in a windows folder. The script appears to run but the output folder remains empty. What am I missing? import arcpy ...
2
votes
1answer
19 views

Using ArcPy to combine several hundred shapefiles into a GDB while also adding the folder name as an attribute of each shapefiles' records

I am trying to figure out the best way to automate an update process. We are given several hundred shapefiles (which I do not have permission to alter), but each shapefile is in its own folder, and ...
2
votes
1answer
35 views

Create report in QGIS, with a map for each type of feature

Lets say I have a layer called trees, with an attribute 'species'. The set of species in my dataset is quite limited, lets say: beech, birch, oak and elm. I want to create a report with a page for ...
0
votes
0answers
13 views

gdalwarp on County-wide mosaic or COG takes forever or seems to hang

I am creating Cloud Optimized GeoTIFFs using gdal from a folder of TIFF files in GDAL for an entire county. After creating a mosaic of these files (in EPSG:6551) using gdalbuildvrt I can create a COG ...
1
vote
0answers
17 views

Use GRASS functions in QGIS that are not available in processing toolbox

QGIS contains many Grass functions but not all. I want to use r.accumulate in QGIS but there is no tool available for it. Is there a way to use these GRASS functions in QGIS directly or with pyQgis ...
1
vote
1answer
25 views

Can't add WMS layer to R Leaflet

I am building a Shiny app which should display environmental layers on a Leaflet map, and I'd like some of them to be pulled from the Environment Agency's (UK) WMS service. I can view the layer in ...
0
votes
0answers
5 views

Deposition as an output in GPP SAGA GIS

I am trying to develop a model using GPP. I need to generate a deposition layer. In the input parameters I put a DEM, Release Areas Raster, a Material Raster (Height of material available in each ...
1
vote
1answer
29 views

Extracting NDVI and EVI in Alaska (EVI is showing -2 to 2 values)

I am working on extracting NDVI and EVI across the Landsat 8 collection in Alaska. Everything seems to be going swell, except the calculated EVI values are going from -2 to 2 instead of -1 to 1. I ...
0
votes
0answers
12 views

ArcGIS Desktop: How to animate the graduated symbol of a shape file according to the column wise data of the attribute table?

I am new to ArcGIS Desktop, and I am trying to animate the attribute table of a shapefile in a column wise fashion. In the below picture, I have columns of attribute table representing 10 different ...
0
votes
0answers
15 views

Fix features with invalid spherical geometry (polygon shape file) for s2 geometry (V 1.0) in sf() within R [st_join() or st_intersection()] [closed]

Since the update of the sf package (V1.0) simple operations st_join() or st_intersection() may be hampered by features with invalid spherical geometry such as: [XY] Loop XY is not valid: Edge XY ...
0
votes
0answers
25 views

Fuzzy Membership producing narrow output

I have a rasterized road layer, from which I have calculated an euclidean distance raster extending up to 15000m. Now, I want to apply fuzzy membership to this Euclidean distance raster using a ...

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