A challenge for the Dynamo pros..... To do with shadows


#1

Hi all,

I have to do shadow analysis and its take a long time. Is there a way of getting Dynamo to calculate the areas of shadow cast on the floor?

Please let me know if you have any ideas as I don’t know where to begin.

 

chris


Projecting surfaces from vertical to horizontal plan
#2

Here’s a way to start thinking about it. ShadowCasting_ProjectOnto

Definitely some ways to make this more robust, but here’s the basic idea.

2015-10-04_2314

 


#3

Zach,

your are a star, I have been told so many times that this can not be done. I will have a look at it.

Thank you

 

Chris


#4

If calculating the area of shadows with the sun as the light source is the goal, you could consider using the Solar Analysis for Dynamo 0.8.2 package

File: shadowArea.dyn

20151005-2


#5

Vikram, that looks great and I will see if I can adapt it for what I need. I will have a project which will be made up fro multiple family’s Masses ect and I would need it to do it for all of the elements at once.

 

Regards

Chris


#6

Vikram, that looks great and I will see if I can adapt it for what I need. I will have a project which will be made up fro multiple family’s Masses ect and I would need it to do it for all of the elements at once.

For instance this is a project I worked on and we needed to calculate the percentage of shade cover across the site from the buildings and trees.

West

 

 

 


#7

Chris, I’m quite sure you’ll be able to do what you’ve outlined.

Mine is a casual example, once you feed in the right parameters (location, weather, timeStudy, etc) I think it should be quite accurate.

The trees will have to be represented by masses, though.


#8

Hi Chris, I’ve been watching you from the shadows… geddit :wink:

Hope you got this all sorted mate,

cheers,

Henry


#9

Yep I have some great software that can do it