At the begining I must point our that I am new to Rhino
I want to analyze in Grasshopper a surface which is a real hill slope. I created 3d model of a surface (via UAV survey) and imported it into Rhino and further - Grasshopper. This however was not possible.
Then I made a surface based on contours generated in QGIS as a dxf and thied to make at least simple sun path visualization. Without proper results. The same situation was observed while trying to perform radiation analysis - values of the kWh/m2 was totally wrong.
I think that values are too low…
When I made a simple geometry (boxes and cilinders) everything worked fine therefore I think that original geometry is a problem.
Can somebody take a look at the attached file and tell what might be a reason for that and how to fix it? How to prepare files for future analyses to avoid this problem?
Thanks in advance
plot.3dm (277.2 KB)
Hi Peter - what is doing the anlysis? That’s not Rhino… In any case I would check the units in the file (DocumentProperties > Units page) and see if things look like they are the right scale.
Thanks for immediate response!
My goal is to visualize few things:
- how sun operates above the surface in different seasons,
- how much of the solar energy is cnsumed by the surface and how this quantity differs in its particular spots due to slightly different slope pitch,
- from which direction winds blow in a specific seasons through putting the wind rose the surface
In fact I wanted to explore as much the GH potential as possible Rhino however is the basis and since the same algos work properly on the other structures, I thought that problem lies on the side of structure I made in Rhino.
I already thought to the same conlcusion (scale) but - at least untill now - it does not work either. Possibly need to repeat my investigation…
Seems that scale is ok. But the results are not Investigation continues then…
Sounds like this is a Ladybug issue. Best to either wait to get @Mostapha to shed some light or go over to the Ladybug group on the Grasshopper site to ask questions.
It would be great if @Mostapha could take look at this.
I’ve checked geometry dimensions and orientation (if Y axis points north than everything is ok). Seems ok… So for now I am stuck. No more ideas how to solve this at the moment.
Just for the future reference this question is solved here: