Im trying to place family’s based on points. I can place family’s but they didnt come out the way i wanted. The blue dots on the picture are my points. i would like to place a family on this face of the wall aiming to the core of the wall. They currently get placed on the bottom of the wall (correct…

I think the HostObject.ExteriorSurface node does not recover the surface of your walls. I add some knots to find what these surfaces correspond to. Forum Family on exterior face point.dyn (33.2 KB)

never got ꟿ FamilyInstance.ByFaceAndPoint to work. Dont know why. If you find a solution please message me. With the 3 other Nodes you positioning the Family. But you can rotate your FamilyInstance after [Unbenannt]

@wusaga thanks for your reply, in this example i used only 1 point. but for my project i need to work with 100’s of points on different walls, with different family instances and their rotations. Shouldnt it be possible to place a family instance at face / host / point ? The red circle is where my …

Sorry for the late Reply… It seems to work! i dont really understand the graph but i m gonna look into it :slight_smile:

I did find something that could go wrong in your approach: [image] The red Node compares surface area. but what if the area of interior and exterior side are the same? I replaced it with the green node… but my question is are the Surfaces always ordered the same? Is surface at index 1 always the…

How do you keep association to the wall the window is in? If you draw for example 3 walls, and 1 wall has a window. i want to place family’s on the walls face along the window. [image] My latest version of the script: Forum 2.dyn (85.5 KB)

Many ways too One of the ways: [Capture]

i m getting closer and closer to a solution but its still hard. If i had a wall with 2 windows, this method gives me 24 points. but i only want the 4 points per window on the exterior face off the wall. This graph is alot harder then i first thought :confused: [image]

I managed to get points on the Exterior surface now. by using HostObject.ExteriorSurface and then Topology.Vertices. The next challange is: how to get the “Inner points”. It seems they are not ordered logical. see the 2 images below. How can i filter the corners of the wall out ? so i keep only t…

@Akli.baliche Thx for pushing me the right way :slight_smile: Here the final solution… it only works if the windows / doors are completely inside the wall. in my case they are because its a precast concrete panel. The final solution: [image]

Place family at point

Akli.baliche August 26, 2019, 7:23am 7

HELLO
Several ways to do it, you want to recover the 8 points?

Getting points at corner of openings in wall e.g. door / window

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Place family at point

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