I have been using ladybug for a long time but there’s a few things about the sun path I have always wondered about. Some of these seem like geometry tolerance issues, I’m just curious what’s going on with them.
- The sun path HOYs say “A number between 0 and 8760”. If there are only 8760 hours in a year, shouldn’t it be (0 to 8759) or (1 to 8760).
- When solar time is on shouldn’t there be one value for the azimuth that is at exactly 180; I always get something between 179 and 181. Shouldn’t the same go on the equinox where the first and last value should be 90 and 270? The numbers are close but not exact.
- Why don’t the sun path lines align with the compass, they always seem to float next to or above the compass, but never cleanly connect. Same goes for the analemmas, they don’t seem to touch the top/highest sun path but then hang under the bottom/lowest sun path. The sun points also don’t land on the sun path curve. This is more obvious if you use a different north than 0.
- If I want solar time but also input say temperature data, how do those interact with each other? The sun would be at a different location than real time, does the temperature data get mapped or is it just matched as is?
- The main outputs of the sun path differ in geometry from the vis set, which is correct?
Thank you to anyone who can answer my questions or correct my assumptions.