6,706
questions
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11
views
How to add a legend when mapping with stat_sf_coordinates?
I'm using ggplot and sf to produce a map that layers points over a choropleth. The points are rendered with stat_sf_coordinates and the choropleth is rendered with geom_sf.
The resulting plot prints a ...
- 117
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9
views
Global Mapper Scripting Problem Elevation Grid
I have a problem with trying to use a Global Mapper Script in order to create an elevation grid out of lidar data. The final output should be a nCHM exported as an ASCII file.
I narrowed the problem ...
- 1
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12
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Why Is There a Decrease in Built-Up Area Obtained From Bhuvan API LULC 250k Data?
I'm conducting statistical analyses of built-up areas across several villages in Telangana, India using LULC 250k AOI-wise data from the Bhuvan API.
While analyzing data from 2015-16 and 2017-18, I ...
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15
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Convert CH1903+/LV95 projection (EPSG:2056) to EPSG:4326 (WGS84) with vertical correction
I am currently trying to use elevation data data from the Swiss Alti3D DEM and compare it to another set of data that I have acquired in WGS 84 (EPSG: 4326). As such, I tried to reproject the Swiss ...
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1
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9
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vue-cesium - how reduce the height of the 3d tiles layer relative to the ground?
vue-cesium - how reduce the height of the 3d tiles layer relative to the ground?
here is my vue 3 component:
<template>
<vc-viewer>
<vc-layer-imagery>
<!-- this ...
- 11
2
votes
1
answer
51
views
Simplify Polygon shapefile to reduce file size in python
I have a polygon shapefile which was vectorized from a raster layer (second image). This shapefile contains thousands of features with just one column which represent polygon level (ranging 1-5). The ...
- 63
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votes
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22
views
What is the proper way to repair/recreate the .shx of an ESRI Shapefile using gdal?
I can recreate the missing .shx file by using the gdal command ogr2ogr and specifing the config "--config SHAPE_RESTORE_SHX YES".
But, although it recreates the .shx file it gives me an ...
- 331
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15
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Google Directions API - set transit mode to *prefer* ferries
Within the Google Directions API, is there a way I can specify my request to prefer to take a ferry when it is an option? In the documentation, all I can see is that I can set a parameter to avoid ...
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20
views
deck.gl error: "Uncaught ReferenceError: VERSION is not defined"
I want to create an app using Deck.gl to render a map to take advantage of WebGL for rendering vector tiles. I have a .mbtiles file served using Tileserver-GL. It works using OpenLayers, but I would ...
- 1
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answers
19
views
Using the ArcGIS JS SDK, all calls I make to an Image Server Identify yield "Right side of assignment cannot be destructured" error
I am trying to query an ArcGIS ImageServer (specifically Sentinel2) using the ImageryLayer.identify() function. Every combination of parameters I've used leads to "TypeError: Right side of ...
- 71
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17
views
From Shapefile to DB Table: need a way to use shp without touching my GeoDjango API
I'm facing a big problem on developing my GIS software with Django (GeoDjango).
I need to create a software that allows me to add, remove and modify Shapefiles to my Database (we used shp2pgsql to ...
- 1
0
votes
1
answer
15
views
Printing Image Layer with MapFish Print
I try to print a Image Layer with MapFish Print 3. I've tried several different print requests absolute image paths, relative ones and urls, but never succeeded. The print finishes successfully ...
- 1
0
votes
0
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69
views
Misalignment when overlaying Python-generated raster tiles on EPSG:3395 nautical chart
I'm working on a project to visualize ship location data on nautical charts using the EPSG:3395 coordinate system. I have a set of latitude and longitude coordinates for various ships, and I want to ...
- 1
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23
views
Direct Retrieval of Nearest Location Using OSRM Nearest API
I've been using the OSRM Nearest API service to obtain the nearest nodes within a road network. However, the response only provides the node IDs, not the actual locations. To retrieve the locations, I ...
- 99
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votes
1
answer
23
views
Working with FIT files in QGIS - how to visualise trackpoints with symbology by speed
I'm using QGIS 3.28.2-Grenoble. I exported my activities from Garmin Connect Web - FIT files.
Then, I used FIT Plugin for QGIS to load FIT files to *.sqlite database https://github.com/jkall/qgis-fit-...
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