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A new class of display programs for trajectories and air concentration contours using the Python language has been developed. These programs are still undergoing modifications to their capabilities and interface requirements. Therefore, until these programs mature, only some basic instructions are provided in this Tutorial. If the Python display programs are provided with your HYSPLIT distribution, you will find detailed installation instructions for Windows (install_win.txt), Apple (install_macos.txt), and LINUX (install_linux.txt), in the python directory. Regardless of the computational platform, a Python emulator is required. See the Anaconda web page for platform specific installation instructions. Currently there are three Python display programs provided in the HYSPLIT exec directory: trajplot.py, toaplot.py, and concplot.py. These are direct equivalents to trajplot(.exe), isochron(.exe), and concplot(.exe). The command line arguments for the Python programs are equivalent to their SVG conterparts. In the section below, reviews the center-of-mass trajectory display example from Section 7.6 in more detail.
These new display programs are optional and still under development. One note of caution, worth repeating, is that the use of any other map background file option other than the default requires an active Internet connection, otherwise the display will fail. |