Version 6.0 - changes from version 5
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Parallelisation of the computational core (much faster calculations)
Sofisticated distribution of calculated points on the sky (equal angular distance)
All input files changed to easily extendable XML format
Position of the observer is given in GPS coordinates now
Non-concave polygons (cities) are modelled by more accurate method
Distribution of light sources in cities is more accurate
Splitted cities are permanently stored for future use
Angular reflectance of clouds changed to usual near-cosine reflectance
Top-altitude of clouds introduced, but hidden (has a confusing effect on the shape of clouds)
Partly cloudy condition introduced
Seed of random generator of clouds implemented (incl. new distribution in each program run)
Rendering of various views on cloud layer possible
Hammer-projection of the sky (observers's view) added to the standard polar projection (God's view)
Resolution of cities and resolution of calculated sky pattern are adjustable now

Version 6.1 - changes from version 6.0
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Menu bar introduced
Direction of observer's view in Hammer plot introduced
Switch on/off all cities implemented
All mouse commands are now accessible also via menu items or GUI buttons
Save current project settings and Load last saved project settings implemented
Tool for creating a city from KML-file added
Tool for creating a spectrum from a text-file added
Tool for mixing the spectra added
Project archiving/editing added
Local plot settings implemented
Compatibility with GNUplot 6 implemented

Version 6.2 - changes from version 6.1
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VIIRS-DNB calibration of total lumens of cities added
Mouse dragging (map movement) implemented
Updating the CEF-parameters (spectrum, uplight, ...) of a group of cities (or of all cities) added
Updating the city-files to currently set city-parameters (spectrum, lumens, population, ...) is possible now
Selecting cities by their expected influence on the skyglow at the observer's position implemented
Polar and Hammer relative plots implemented (previously archived data can be chosen as a reference)
Current project (folder) is shown in the window title - eliminates confusion which project is currently edited










