GIS GIS - Geographic Information System Python Scripting and Automation Questions and Answers

Question 1

Which Python library is most widely used for reading, writing, and manipulating vector geospatial data formats such as shapefiles and GeoJSON?

Accepted Answer

Fiona

Answer

NumPy

Answer

SciPy

Answer

Pillow

Question 2

In Python GIS scripting with Shapely, which method returns the geometric intersection of two polygon objects?

Accepted Answer

polygon1.intersection(polygon2)

Answer

polygon1.union(polygon2)

Answer

polygon1.difference(polygon2)

Answer

polygon1.buffer(polygon2)

Question 3

What is the primary purpose of the Python library 'GeoPandas' in GIS workflows?

Accepted Answer

Extending pandas DataFrames to support spatial operations on vector data

Answer

Rendering 3D terrain models

Answer

Performing radiometric correction on satellite imagery

Answer

Managing geodatabase schema definitions

Question 4

In ArcPy (Esri's Python site-package), which function is used to iterate over features in a feature class and read attribute values?

Accepted Answer

arcpy.da.SearchCursor

Answer

arcpy.da.InsertCursor

Answer

arcpy.da.UpdateCursor

Answer

arcpy.ListFields

Question 5

Which Python library provides tools for raster data processing, including reading GeoTIFF files and performing array-based calculations?

Accepted Answer

Rasterio

Answer

Cartopy

Answer

PyQGIS

Answer

Pyproj

Question 6

In QGIS Python scripting (PyQGIS), what does the 'processing.run()' function do?

Accepted Answer

Executes a QGIS processing algorithm programmatically with specified parameters

Answer

Renders a map layout to PDF

Answer

Opens a new QGIS project file

Answer

Loads a WMS layer into the current map canvas