All Questions

Filter by
Sorted by
Tagged with
-1
votes
1answer
23 views

Using gdal_translate in node-gdal?

How can I use gdal_translate in node-gdal? I'm trying to use the following command: gdal_translate C:\test.tif cog.tif -co TILED=YES -co COPY_SRC_OVERVIEWS=YES -co COMPRESS=DEFLATE.
3
votes
1answer
28 views

Earth Engine - Exporting image after object based methods/analysis

I performed object-based methods to calculate a mean (zonal statistics) for connected pixels adapted from this guide: https://developers.google.com/earth-engine/guides/image_objects#label_objects Here ...
1
vote
0answers
21 views

Leaflet highlight GeoJSON points within the other highlighted GeoJSON layer

I would like to have all the points highlighted within the other highlighted GeoJSON polygon. Next, I would like to have them displayed in the panel next to or at least in the console (for now). The ...
4
votes
1answer
53 views

QGIS: Style polygon outline as a dashed line with an inner gradient

Is it possible to create a polygon outline as a dashed line with an inner gradient (see image #1)? Currently I have a hack job that sort of works (shapeburst fill with a dashed line above in the ...
0
votes
1answer
21 views

ArcGIS - Can't create shapefile showing footprint of raster extent

I'm trying to create a shapefile with the extent of my raster so that it can be used as a mask to clip with. My shapefile has no datapixels along its boundary and is irregularly shaped. So far I've ...
2
votes
0answers
42 views

Aggregate interpolated data at county level with R

The raw data is at the state level and I would like to go down to the county level. To do this, I first adjusted the data to county level and then interpolated it. The raw data on state level looks ...
5
votes
2answers
113 views

Update value in attribute table depending on the combination of few values in other table in QGIS

I have one point layer and one table inside a GeoPackage. Let's say within the layer attribute table I have 4 columns (A, B, C and D) and in the table I have also 4 columns (E, F, G and H). The ...
2
votes
2answers
116 views
+50

How to calculate the shortest route by road from one origin point to multiple destination points at once using PostGIS (pgrouting)

Referring to the below snapshot what is the best possible way to find the road distance from the red star node to all of the yellow nodes using PostGIS. Note: I don't have the road distance data ...
0
votes
0answers
10 views

SLD style - grid labeling

I have grid, every part of grid have label with date. What I want is to put labels at polygon top. I tried to use displacement, but I have specific situation when parts of two polygons are visible. ...
1
vote
0answers
13 views

Can't reference an MVT layer from Mapfile

I'm trying to add an MVT layer to my Mapfile, but it doesn't work and I ran out of ideas. Some info about the layer I'm trying to add: https://support.regrid.com/articles/using-the-tileserver/ This is ...
0
votes
0answers
22 views

Model Builder CAD to KMZ

I am trying to create tools to convert CAD to KMZ with ModelBuilder. It is not working very well. How can I modify ModelBuilder for that to work correctly? Here is screen: My tools is working only in ...
0
votes
1answer
18 views

Run FUSION/LDV programs from Python

I have been working with FUSION/LDV: Software for LIDAR Data Analysis and Visualization for LAS data processing. Particularly I am using such commands as GridSurfaceCreate - to create a gridded ...
1
vote
1answer
37 views

Evaluating classification accuracy and the result of kappa test in Google Earth Engine

I am trying to check the efficiency of the classification. The classification accuracy and kappa test for 2020 are 0 while for 2000 is 1. I am just not able to put my finger on what is incorrect as ...
3
votes
1answer
41 views

Stop label callouts from crossing the polygon

Can you stop the label callouts from unnecessary crossing the polygons and just go outwards. Picture below is with the suggested change
0
votes
1answer
37 views

Extract data from a WMS with database [closed]

In my project, I have a connection to a WMS layer (https://geodienste.hamburg.de/HH_WMS_Cache_PLIS_Geodaten). The layer seems to be connected to a database. With the "get feature info (i)" ...
1
vote
1answer
34 views

Cannot connect to PostGIS database with GRASS, but can connect with psql with the same credentials

I am trying to connect to a PostGIS database (hosted in a docker container) on a remote server with GRASS. I am able to connect with psql and confirm that the table is there (IP redacted): psql -h x.x....
1
vote
1answer
41 views

QGIS query comparing the value of two fields doesn’t work

I try to filter my layer in QGIS comparing the value of two fields. Somehow, this code doesn’t work: ( "Field1_integer" <> to_int( "Field2_string")) If I use the same code ...
0
votes
0answers
17 views

Setting CRS/SRID of raster tables referenced in raster_columns view in PostGIS database

I imported some DEMs to my PostGIS db and two have unknown CRS (maybe because their CRS code is Esri and not EPSG). Do I update the raster_columns view or do I directly set/assign the CRS of the said ...
1
vote
1answer
49 views

QGIS join by location not working between two shape files

I am getting this weird error while using join attributes by location in QGIS, I have two layers - Source & Target. I am joining by target to source features using intersect option in join ...
0
votes
0answers
27 views

GeoServer errors when seeding mosaic: Problem communicating with GeoServer

I have a set of UAV images and I want to publish them by GeoServer. I have been thinking to use ImageMosaic plugin to provide front-end(Openlayers) with WMS. But an error occurs when I try to seed the ...
0
votes
0answers
23 views

Invalid GeoJSON polygons, lots of bow ties

I've been trying to figure out what is exactly going on with this GeoJSON polygon. What might be the underlying cause? The output is in GeoJSON, however, it's obviously invalid GeoJSON. I think it ...
0
votes
0answers
22 views

Display Sentinel 2 Imagery in Google Earth Engine, but the image looks weird, how can I remove it

This is my code /** * Function to mask clouds using the Sentinel-2 QA band * @param {ee.Image} image Sentinel-2 image * @return {ee.Image} cloud masked Sentinel-2 image */ function maskS2clouds(...
0
votes
0answers
41 views

QGIS: Add Polygon feature - I want to click on each vertex, but I'm stuck on the curser travel defining the polygon

In QGIS, I have been happily creating polygons using "Add Polygon feature" and clicking each vertex to create my polygon, right click to complete. Now for some reason, The Vertex tool has ...
3
votes
1answer
57 views

Buffering specific roads and calculating inhabitant number

I wish to calculate the number of inhabitants (population) who live within settlements less than 500 meters from highways and from local roads and how many marines are located less than 20 kilometres ...
0
votes
0answers
27 views

Exporting data keeps re-attempting [closed]

I am having some trouble exporting my data. I am trying to export the temperature, precipitation, digital elevation, and GLDAS outputs (eight of them) for each of the data points (time, lat, long) in ...
0
votes
2answers
57 views

GeoJSON format to CSV [closed]

How to extract the GeoJSON from the following URL to CSV ? https://api.met.no/weatherapi/locationforecast/2.0/compact?lat=60.10&lon=9.58 Also what option to use to get/import this data to layer?
1
vote
1answer
84 views

Visualizing Collection of Pixels as Image in Google Earth Engine

I have a polygon and I want to extract both the value and coordinates of every pixel of a landcover raster within that polygon into a CSV spreadsheet. I will use that to perform computations outside ...
1
vote
1answer
22 views

Changing georeferenced .tif file with GDAL SetGeoTransform?

I am trying to change the pixel width and pixel height in the GeoTransform inside a georeferenced .tif file. I wrote a bit of code to read the file then change the GeoTransform parameters and write ...
3
votes
1answer
35 views

Add newly created columns to an existing PostGIS table from GeoPandas?

I am trying to add some newly created columns to an existing table in PostGIS table from GeoPandas. Previously, I've pulled the data out of my database, run geocoding, and then created new columns ...
0
votes
0answers
18 views

ArcGIS Pro Append Issue (field contains both text and numeric values) [duplicate]

I've got a workflow that appends values from a CSV file into a geodatabase table. Using field mapping, I've got the CSV column mapped to a text field. The issue I have is that the CSV column ...
2
votes
3answers
44 views

Changing a layer's label font size using ArcPy

I'd like to increase the font size of my layer "Grid". The field is "MAPSHEET" on Grid's attribute table. I've tried all sorts of ways to write it out in code to no avail. I'm ...
0
votes
0answers
42 views

Converting GeoTIFF to 3D shapefile?

I have a GeoTIFF in which the data represents flood heights. I want to create a 3D vector that shows the flood heights from the GeoTIFF. Please suggest any methodologies/tools if this is possible.
4
votes
2answers
190 views

Does spatial data layer have to have both projected coordinate system and geographic coordinate system?

Since maps are flat, I feel like the PCS is needed for the spatial data layer to know how to draw it out, but I think the layer also needs the GCS for the coordinates to show where the location is on ...
0
votes
0answers
13 views

Why did my title and other text boxes disappear when I resized the layout in ArcMap?

I had finished building a nice layout with my maps, inserts, scale bar, and text boxes. However, when I changed the layout from landscape to portrait all of the map elements such as the text boxes and ...
2
votes
1answer
44 views

View vector GeoServer line layer in Leaflet

I have simple line layer created based on shapefiles. It can be viewed in GeoServer with OpenLayers preview: I also can be imported and correctly viewed in QGIS. I tried to visualize this layer over ...
1
vote
0answers
23 views

QGIS layout variables not refreshing when changed

I'm setting up over 100 layouts of different maps. I would like to control extents of layout map from one place, let's say via variable. I tried a way using QGIS global variables but it seems to not ...
0
votes
0answers
28 views

Code Attempt for the Problem [closed]

I am working on a QGIS file in which I have to count the number of neighboring municipalities with the same attribute and find out the number of municipalities with the same attribute within 10 mile ...
-1
votes
0answers
34 views

Distance analysis using barriers

I am not super experienced with ArcMap. I am using ArcMap 10.6 and I need some help getting distance around a barrier. Here is the issue: I have some mark recapture data regarding sea turtles. It is ...
0
votes
1answer
22 views

How to clip connecting datasets to each other in ArcGIS Pro

I have two datasets, one with administrative boundaries from one source, and coastlines from another source. I want to use both these sources to create a map, however the administrative boundaries are ...
1
vote
1answer
33 views

Buffers clipped to features used to create them

I'm trying to create an sf object of polygons which are buffer regions clipped to the polygons used to create the buffers. Using st_difference returns an sf object with all combinations of both sf ...
3
votes
1answer
20 views

Merging DEM elevation attributes with streets shapefile

I have a DEM and a separate shapefile of all the roads within the bounds of the DEM. I want to combine the elevation data with the road data so that I can have the roads displayed with a graduated ...
0
votes
0answers
20 views

QGIS, Lines disappearing after classification

I want to create a shapefile with the geometry type Line. For this purpose I make a classification in the symbolization, because the lines are assigned to different meanings. For example: Value a --&...
0
votes
1answer
19 views

Manual classification combining bands and defining values in GEE

I would like to perform some manual classification on a single image of S1-data which is fairly simple: either a pixel is classified as 'Water', or it is classified as 'Land'. I did these ...
0
votes
1answer
28 views

Python Gdal: Count pixels having a specific range of values [closed]

I have few hundred raster files and I want to count the number of pixels having values within a specific range. Following code works well when using == operator e.g., raster_file == 25, but gives ...
1
vote
1answer
32 views

Geometry shaped by the houses on the basemap

I want reshape my circle so that its border doesn't cut through any houses on my basemap (Envitia). In the sense that if it does, then go around that property, as depicted in the image. Is this ...
1
vote
1answer
36 views

Error with FME server working with ArcGIS server (Portal for ArcGIS)

Our company rented server (Windows Server 2016) where we've got ArcGiS Server (Enterprise) + FME Server. And some FME jobs (workbenches) using FME SDE Readers. So reades takes some vector objects from ...
0
votes
0answers
18 views

multiply() raises a projection error

I would like to plot a modis timeseries using GEE. I would like to scale the values and I am using a custom function to do as I am applying to a ImageCollection. When I run the code the data displays ...
0
votes
1answer
23 views

Help: area code download in Google Earth Engine

I need help exporting this data. I don't know how to make the line of code to download. I think the error is in image: s2,, right? Code: var addEVI = function (image) { var EVI = image.expression( ...
0
votes
0answers
13 views

How to convert NaN pixels to a number in when exporting images in GEE? [closed]

When exporting a clipped image, the area between the image boundary and the image bounding box is set to NaN by GEE. Is there a way to set those to a nodata value instead? I tried img.unmask(ee.Image(-...
1
vote
3answers
68 views

Automatically fill fields when creating feature in Lizmap?

I've set-up a project with an editable layer (PostGis) with linear geographic elements in qgis and Lizmap. I would like some fields to be automaticaly filled when an user create a new object. List of ...

15 30 50 per page
1
3 4
5
6 7
2888