Triangulation cylinder with holes

The triangulation of the cylinder with holes is similar to that of the sphere. Triangulation sphere with holes
But with different parameters. For the sphere this variant is also in progress.

Try it out https://hofk.de/main/threejs/Triangulation/TriangulationCylinderWithHoles.html

One variant is integrated in the addon THREEi.
Addon for triangulation of implicit surfaces/ forms with holes

Cylinder with holes and edge adaptation for other cylinders.
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In order to allow the correct adjustment, d (rough side length of the triangles) must be specified. The radius is then d / Math.sin( Math.PI / (div4 * 4) ) / 2

const g = new THREE.BufferGeometry( );

const parameters =  {

	d: 0.052, // rough side length of the triangles
	div4: 30, // division of the quarter circle
	bottom: -1, 
	div4Btm: 30, // division bottom adaptation, (to quarter, >= div4)
	phiBtm: 1.57, // rotation of adaptive-deformed circle (Bottom)
	top: 1,
	div4Top: 33, // division top adaptation, (to quarter, >= div4)
	phiTop: -0.2, // rotation of adaptive-deformed circle (Top)
	
	holes: [
		// circular (deformed) hole, 3 elements: [ y, phi, div4Hole ], div4Hole <= div4	
		[   0.3,  1.6, 12 ],
		[  -0.4,  3.7, 14 ],
		[  -0.1, -0.9, 18 ],	
		//points hole,: array of points y, phi, ...  (last point is connected to first)
		[ 0.15,0.45, 0.5,0.9, 0.8,0.6, 0.75,-0.2, 0.1,-0.15  ]
	]
	
}

cylinderWithHoles( g, parameters );

edge adaptation:
15

These cylinders can then be used to realize inner geometry.

36

The sphere and the torus will soon be added to this.19

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Great work! :+1: :beers:

From now on you can try out the simple example of the inner geometry here. Take the slider!
https://hofk.de/main/threejs/Triangulation/InnerGeometryCylinder.html 17

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