Is it possible to draw the shadow outline on a plan view with detail lines using dynamo?

haha great! I been searching but mostly just find working out the area of a shadow, not getting its outline. Can you point me in the right direction?

Have a look here :wink: [image] Flatten Solid onto plane [20170822-6] //Reference Surface that exceeds the extents of the Object and normal to projection direction s1 = Line.ByStartPointEndPoint(Point.ByCoordinates(0,20,-20),Point.ByCoordinates(20,0,-20)).Extrude(Vector.…

At the moment its a 9 story doughnut building. Need to run a shadow study, draw the outline of it and then switch the view to another building and show the difference of the building outside the boundary height. Will hopefully be something that could be used for any building. The building inside the…

Hi @Ewan_Opie @jacob.small or anyone else. I couldn’t quite work out the link you sent me. But I came up with the below. Its a bit slow though. Any suggestions or better methods? The vector seems to project further then the Revit shadow too which I cant figure out how to fix. Thanks for any help […

I’d check where it is slow using tuneup Build a mass from the buildings and project those faces instead of the many many many many faces of the walls. Could be a daylight savings time bug, or that the link doesn’t share an internal origin so the elevation is different. Would need the full data set …

Element solids is killing it. I’m currently trying to get element.geometry from the walls then a bounding box of geometry then a cuboid from bounding box then solid union to make it similar. Element.geometry means translating the geometry though with the links. Just working on matching up the lists …

I got here, fast enough. However its not very accurate with the building outline using topo method because the lines jump across if the buildings taller on one side then the other, forgot to post a pic. One building dosnt want to translate to the correct location too. A way to get the perimeter poin…

[image] vanman: I tried making like a mass shape from a few posts on the forum but couldn’t quite get it. Manually is pretty easy, and while you could automate it for this project it might not work for the next one so I’d go manual in this case (the time to build that is likely minimal if you…

Thanks @jacob.small . I’m still on Dynamo 1.3 :scream: for Revit 2019. So I think tune ups no good to me for now. The current script I’ve got is fast and means I dont need to do any manual work in revit :slight_smile: However, do you have a method to create a surface with a group of points to draw …

Shadow outline

Revit

Ewan_Opie September 25, 2019, 7:40am 4

Have a look here

What shape/structure are you projecting?

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Shadow outline

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