Hi
I have written a matlab program and the result of this is wrong. At the end of 6th through to end line it is not stright as the other lines. It is a sun path diagram for Kerman_Iran at longitude 30.16 degree. In this progrom altitude angle shoud plot against azimuth angle by hours and decline angles. Step time is one hour and step decline angle is 4.69 degree. But the problem is here that Mr.Lavdim Kurtaj point it, at +/- 90 degrees lines rollback. Why?
Could you help me?
The program has attached.
Dear Esmaeel Safijahanshahi ,
It is not clear, you explain more.
Since equations involve trigonometric functions, to have continues trajectories corrections must be made by checking quadrant where angle belongs.
It can be seen from picture that rollback is happening at +/- 90 degrees.
It is a sun path diagram for Kerman_Iran at longitude 30.16 degree. In this progrom altitude angle shoud plot against azimuth angle by hours and decline angle. Step time is one hour and step decline angle is 4.69 degree. But the problem is here that Mr.Lavdim Kurtaj point it, at +/- 90 degrees lines rollback. Why?
Thanks Mr.Lavdim Kurtaj. Could you send me your modify program?
in attached file you will find corrected version, with corrections according to equation (3.18) from
http://www.powerfromthesun.net/Book/chapter03/chapter03.html
and limiting results within 360 degree.
In addition file includes conversion of results with center at 0 degree, as in your original file.
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