Geometry "wave"

1

Hi guys,

I am working to replicate a building originally made by 3XN to practise my geometry skills.
I am beginner and I am struggle to create 1 part.

3XN.PNG
3XN.PNG2365×758 254 KB

DYNAMO
DYNAMO1875×815 135 KB

I succeed to do the round base, and create the wood sections, but I have no clue how to do the curvy thing… I tried to find tutorial but it is always mostly showing how to randomise points… I would like to have control over my variation. In 3XN building they seem to have consistency in the curved.curves… It is always same angle, at the same points etc…

thanks for your help!

2

hi @fbergeronPM5NT

check this: wave_structure.dyn (18.2 KB)

Output:

1
11037×872 44.5 KB

3
3856×711 22.6 KB

The Script:

2
2753×693 44.1 KB

python code:

import clr

clr.AddReference('ProtoGeometry')
from Autodesk.DesignScript.Geometry import *

clr.AddReference("RevitNodes")
import Revit
clr.ImportExtensions(Revit.Elements)
clr.ImportExtensions(Revit.GeometryConversion)

from math import sin, pi as PI


topElevation = IN[0]
bottomElevation = IN[1]
waveHeight = IN[2]
radius = IN[3]
n = int(IN[4])
partitionAngle = 360.0/n
side = IN[5]
crests = IN[6]
cs = IN[7]


postLine = list()
for i in range(n):
	topPoint = Point.ByCylindricalCoordinates(cs, i*partitionAngle, topElevation, radius)
	bottomHeight = bottomElevation+waveHeight + (waveHeight/2)*sin(crests*i*2*PI/n)
	bottomPoint = Point.ByCylindricalCoordinates(cs, i*partitionAngle, bottomHeight, radius)
	post = Line.ByStartPointEndPoint(topPoint, bottomPoint)
	
	posX = bottomPoint.X
	posY = bottomPoint.Y
	posZ = bottomPoint.Z
	
	
	origin = Point.ByCoordinates(posX, posY, posZ)
	normal = Vector.ByTwoPoints(bottomPoint, topPoint)
	pl = Plane.ByOriginNormal(origin, normal)
		
	pcs = CoordinateSystem.ByOrigin(posX, posY, posZ+.5*post.Length)
	rpcs = CoordinateSystem.Rotate(pcs, pl, i*partitionAngle)
	
	cuboid = Cuboid.ByLengths(rpcs, side, side, post.Length)
	postLine.append(cuboid)



OUT = postLine

just play around the inputs.
have fun!

-biboy

1 Like
3

Here is a mathematical approach.

You should be able to build a graph (if you prefer nodes) by referring to the code below.

wave
wave2043×722 1.53 MB 

rd = 20;
ht = 10;

dv = 200;
pt = 0..360..#dv;

//Top Profile
bx = Math.Cos(pt) * rd;
by = Math.Sin(pt) * rd;
tp = Point.ByCoordinates(bx,by,ht);

//Base Profile
//wf = 5;
//wh = 0.1;
bz = Math.Sin(0..360*wf..#200) * wh * rd;
bp = Point.ByCoordinates(bx,by,bz);

//Mullions
ml = 180/(dv*2.5);
mw = ml*2;

//Vericals
r1 = Rectangle.ByWidthLength(Plane.ByOriginNormalXAxis(bp,Vector.ZAxis(),Point.AsVector(bp)),mw,ml);
v1 = r1.ExtrudeAsSolid(Vector.ByTwoPoints(bp,tp));
1 Like
4

wave
wave1988×668 188 KB

wave.dyn (36.7 KB)

6 Likes
5

Ohh god you guys are genius ! Thank you so much guys! I will take this part and try to apply it to other patterns ! Thanks again and again !

1 Like