Common questions

What is pyproj?

by Minnie

What is pyproj?

The pyproj is a Python package that performs cartographic transformations and geodetic computations. It is a Cython wrapper to provide Python interfaces to PROJ. PROJ. 4 is a projection library that transforms data among many coordinate systems and is also available through GDAL and OGR.

What is Pyproj used for?

The pyproj is a wrapper around the PROJ. 4 library that works with projections and performs transformations (https://pypi.python.org/pypi/pyproj/) in Python. All your geographic information should be projected into one of the many coordinate systems supported by the European Petroleum Survey Group (EPSG).

How do I download Pyproj?

Install pyproj

  1. From pypi: pip install pyproj –no-binary pyproj.
  2. From GitHub with pip : pip install git+https://github.com/pyproj4/pyproj.git.
  3. From cloned GitHub repo for development: pip install -e .

What is Cartopy in Python?

Cartopy is a Python package designed for geospatial data processing in order to produce maps and other geospatial data analyses. Cartopy makes use of the powerful PROJ, NumPy and Shapely libraries and includes a programmatic interface built on top of Matplotlib for the creation of publication quality maps.

What is CRS map?

A Coordinate reference system (CRS) defines, with the help of coordinates, how the two-dimensional, projected map is related to real locations on the earth. There are two different types of coordinate reference systems: Geographic Coordinate Systems and Projected Coordinate Systems.

How do I uninstall PIP?

Uninstalling/removing Python packages using Pip

  1. Open a terminal window.
  2. To uninstall, or remove, a package use the command ‘$PIP uninstall ‘. This example will remove the flask package.
  3. The command will ask for confirmation after listing the files to be removed.

How do I install the latest version of proj?

Select “Direct connection” and press Next. Choose the download.osgeo.org server and press Next. Find “proj” under “Commandline_Utilities” and click the package in the “New” column until the version you want to install appears. Press next to install PROJ.

How do I install GEOS?

Download and install a GEOS binary (https://trac.osgeo.org/osgeo4w/)…Installation with custom GEOS libary

  1. Set GEOS_INCLUDE_PATH and GEOS_LIBRARY_PATH environment variables (see below for notes on GEOS discovery)
  2. Run pip install pygeos –no-binary.
  3. Make sure the GEOS . dll files are available on the PATH.

What are the different types of CRS?

Can I delete get pip PY?

Uninstalling/removing Python packages using Pip To uninstall, or remove, a package use the command ‘$PIP uninstall ‘. This example will remove the flask package.

Does uninstalling python remove all packages?

@patelshahrukh uninstalling python DOES NOT remove pip packages. please AVOID doing that, since it both most likely WON’T WORK the way you think it will, and, depending on how you install python again, can leave your machine in an unstable state that’s more work to fix.

How to use pyproj new projection initialization method?

And if, by chance, I try with {‘epsg’:’4326′} or {‘epsg’:4326} ; these errors are respectively raised: Is it already possible to write some GeoPandas code that corresponds to the new* pyproj projection initialization method using : instead of +init= : ?

How to check the API usage of pyproj?

You can vote up the ones you like or vote down the ones you don’t like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar. You may also want to check out all available functions/classes of the module pyproj , or try the search function .

When to use CRS instead of EPSG in pyproj?

‘ : ‘ in the error means that you need just to use crs=’EPSG:4326’ instead of crs= {‘epsg:4326’}. As too often, I continue cobbling around with my code after having posted my question, and I figure it out:

Which is the best example of pyproj.transform?

The following are 30 code examples for showing how to use pyproj.transform () . These examples are extracted from open source projects. You can vote up the ones you like or vote down the ones you don’t like, and go to the original project or source file by following the links above each example.