Sun path chart program

< http://solardat.uoregon.edu/SunChartProgram.html>

citation from University of Oregon, Solar Radiation Monitoring Laboratory.
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This program creates sun path charts in Cartesian coordinates for: (1) "typical" dates of each month (i.e.; days receiving about the mean amount of solar radiation for a day in the given month); (2) dates spaced about 30 days apart, from one solstice to the next; or (3) a single date you specify. You can select whether hours are plotted using local standard time or solar time. In addition, there are a number of options available to allow you to alter the chart's appearance. Resulting charts are displayed in your Web browser window, and they are meant to be printed out. Two formats are currently available: PDF (Adobe) and PNG (a standard international graphics format). The create sun path charts in polar coordinates go to the polar sun path charts Web page. For more information, visit our Web page about using sun charts.
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