on January 17, 2023
Importing .obj-file in QGIS 3.10.5
Geographic Information SystemsHow do I import OBJ files? To import an OBJ, select File -> Import… from the menu bar. Select the OBJ you wish to import. You can also drag and drop your OBJ into the Resources panel. Once the OBJ is imported into Lens Studio, you should see it listed in your Objects panel as
on January 17, 2023
QGIS georeferencer – GCP projection problem
Geographic Information SystemsHow many minimum number of GCP points are needed for georeferencing in QGIS software? At least 2 GCPs are needed. The Helmert transformation also allows rotation. It is particularly useful if your raster is a good quality local map or orthorectified aerial image, but not aligned with the grid bearing in your CRS. What is
on January 17, 2023
Layer disappears when changing from CRS in degrees to CRS in meters in QGIS
Geographic Information SystemsHow do I change units from degrees to meters in QGIS? Changing unit of measure from degrees to meters in QGIS? Download the relevant shapefile. Open it in QGIS. Click the Settings menu and select project properties. Select a projected coordinate system, like NAD83 / UTM zone 19N. Click the box Enable ‘on the fly’
on January 17, 2023
Empty GeoServer Layer
Geographic Information SystemsWhat is layer in GeoServer? In GeoServer, the term “layer” refers to a raster or vector dataset that represents a collection of geographic features. Vector layers are analogous to “featureTypes” and raster layers are analogous to “coverages”. All layers have a source of data, known as a Store. How do I open a GeoServer file?
on January 17, 2023
Highest resolution Digital Elevation Model for the UK?
Geographic Information SystemsHow to download SRTM 30m DEM? Where can you download the SRTM data? SRTM DEM data is being housed on the USGS Earth Explorer. To download, select your area of interest. Under the data sets tab, select Digital Elevation > SRTM > SRTM 1-ArcSecond Global. What are two types of digital elevation models? There are
on January 17, 2023
How to create one shapefile with categories?
Geographic Information SystemsHow do I combine shapefiles with different attributes? Process Click on the Vector menu, Data Management tools, Merge Shapefiles to One Ensure the correct shapefile type is selected (points, lines, or polygons). Select the folder where the two (or more) shapefiles you want to merge are located using the Browse button. How do I
on January 17, 2023
Twitter live feed on ArcGIS desktop
Geographic Information SystemsCan ArcGIS desktop use Web services? ArcGIS for Desktop is designed to work with services. For example, when you click Add Data, you can browse to a server connection and add map and image web services into your table of contents, just like you would with any other data source. Is ArcGIS online included with
on January 17, 2023
Determine geograpic coordinates from one fixed location as accurately as possible without expensive hardware
Geographic Information SystemsHow do you find the geographical coordinates of a place? Get the coordinates of a place On your computer, open Google Maps. Right-click the place or area on the map. This will open a pop-up window. You can find your latitude and longitude in decimal format at the top. To copy the coordinates automatically, left
on January 17, 2023
Why does the flow direction tool in ArcGIS desktop give wrong output (unique values from 1-255)?
Geographic Information SystemsHow does flow direction work in Arcgis? The Flow Direction raster function takes a surface as input and creates a raster of flow direction from each pixel to its steepest downslope neighbor. The Flow Direction function supports three flow modeling methods: the D8 (eight directions), Multi-Flow Direction (MFD), and D-Infinity (DINF). What is flow direction
on January 17, 2023
Listing all point items in polygon?
Geographic Information SystemsHow do you find all the points inside a polygon in Python? One of the simplest and most efficient ways of getting a list of points inside a polygon with Python is to rely on the Geopandas library and perform a spatial join. To do this, we simply create one geodataframe with points and another