Wind Rose - Calculate the Angles of a Compass
Calculation of angles of cardinal, intercardinal and other directions when rotating a wind rose (compass rose). Normally, the North is indicated at 0°, East at 90°, South at 180° and West at 270°, the directions between have values between. Press Standard to show these values. For 16 directions, between two neighboring values, there are 22.5°. If one direction is rotated for a certain number of degrees, then the others will shift for the same value. This can be calculated here. Enter one value, all the others will be calculated. The wind rose graphics will also rotate accordingly.
Examples: If the wind rose is rotated by ten degrees, thus tilting slightly to the right, then north is at 10 degrees, east at 100 degrees, south at 190 degrees, and west at 280 degrees. For such a rotation, either enter 10 for north or the corresponding value for one of the other angles. For a rotation by 180 degrees, if you enter 180 for north or 0 for south, then north and south, as well as east and west, are swapped.
If a value is entered for north, this value is added to all other angles. If entered in any other field, the corresponding angle is first subtracted from the entered value, then this value is inserted into north, and finally added to all other angles. If a value exceeds 360 degrees, 360 is subtracted; if the value falls below zero, 360 is added.
Compass roses are often used as decorative objects. When used on mobile objects, such as suitcases or clothing, then of course they often change their position. On fixed objects, however, you can ensure that the compass rose is correctly aligned, if you have the chance, then it also serves a certain purpose, it shows you the cardinal directions at this exact point.