Why is this coordinate system assigned to this raster (R)?
Geographic Information SystemsWhat is meant by coordinate system in R? CRS provide a standardized way of describing locations. Many different CRS are used to describe geographic data. The CRS that is chosen depends on when the data was collected, the geographic extent of the data, the purpose of the data, etc. How do I change the CRS
How to find a particular coordinate on a Sentinel image using proj:transform?
Geographic Information SystemsHow do you find the coordinates of an object in an image? Get Coordinates from an Image Open the image toolbar. Click an image to open the image toolbar: Choose the coordinates tool. Choose the coordinates tool in the toolbar: Click image points. Copy image coordinates to the clipboard. Paste the image coordinates into an
Python 2 and CSV writerows() encoding
Geographic Information SystemsWhat encoding is csv in Python? UTF-8 is the default encoding standard on Windows, Linux, and macOS. If you write a CSV file using Python’s standard file handling operations such as open() and file. write(), Python will automatically create a UTF-8 file. What is the difference between Writerow () and Writerows () in the csv
Routing for specific subjects (cars, pedestrians, ..) dynamically
Geographic Information SystemsWhat is dynamic vehicle routing? The Dynamic Vehicle Routing Problem (DVRP) is one of the important variants of VRP. Its aim consists in designing the optimal set of routes for a fleet of vehicles in order to serve a given set of customers while new customer orders arrive during the performance of the planned earlier
PostGIS ST_Difference function returns wrong geometry in result
Geographic Information SystemsWhat is the difference between ST_Contains and ST_Within in PostGIS? ST_Within(geometry A , geometry B) returns TRUE if the first geometry is completely within the second geometry. ST_Within tests for the exact opposite result of ST_Contains. ST_Contains(geometry A, geometry B) returns TRUE if the second geometry is completely contained by the first geometry. What is
Passing each parsed file name to next tool in ModelBuilder?
Geographic Information SystemsHow do you connect things in model builder? Type directly in ModelBuilder to open the Add Tools To Model dialog box and search for a specific tool. You can add a tool to the model by double-clicking it. You can also drag one or multiple tools from the search results. The Add Tools To Model
Error in Resample
Geographic Information SystemsWhat is resample (‘ MS ‘) in Python? Resampling is used in time series data. This is a convenience method for frequency conversion and resampling of time series data. Although it works on the condition that objects must have a datetime-like index for example, DatetimeIndex, PeriodIndex, or TimedeltaIndex. What is resample used for? Resampling is
GeoServer how to permit to user to see only the his data
Geographic Information SystemsHow do I publish data in GeoServer? In a web browser, navigate to http://localhost:8080/geoserver . Log into GeoServer as described in the Logging In section. Navigate to Data ‣ Workspaces. Workspaces page. Click the Add new workspace button. You will be prompted to enter a workspace Name and Namespace URI. Click the Submit button. How
Differentiating bare soil and urban areas in Landsat 4-5 land cover classification
Geographic Information SystemsHow is urban land cover classified? The urban land cover is classified into five different classes Bare land, water, vegetation, residential and buildings and road network. What is bare soil index? Bare Soil Index (BSI) is a numerical indicator that combines blue, red, near infrared and short wave infrared spectral bands to capture soil variations.
Removing no data and saving raster file using PyQGIS
Geographic Information SystemsHow do I remove no data from raster QGIS? If you are only creating a map you can hide these values in QGIS by going to your layer properties –> transparency and then selecting the values you want to hide. Save this answer. How to convert NoData to 0 in QGIS? The simplest one-step and,