Hello, How can I generate a tetrahedral mesh surface like this for these points ? Could you please point me to some example or tutorial? Thank you very much

You could give ConvexBufferGeometry a try. It computes the convex hull for a given set of points and then generates the corresponding geometry data. The following example demonstrates this approach: https://threejs.org/examples/#webgl_geometry_convex

Thanks for reply. In the example the vertices are declared as below, and then passed to the THREE.ConvexBufferGeometry. var vertices = new THREE.DodecahedronGeometry( 10 ).vertices; var meshGeometry = new THREE.ConvexBufferGeometry( vertices ); But when I try to pass the points to THREE.ConvexBuf…

What do you mean with “won’t work”? Please be more specific.

Console output is : Uncaught TypeError: THREE.ConvexBufferGeometry is not a constructor. I think the problem is the points cannot be directly passed on to the ConvexBufferGeometry?

You have to include ConvexBufferGeometry and QuickHull into your app. It’s no part of the core lib.

Oh… Sorry about that noob mistake… Now the console output is, THREE.QuickHull: Points parameter is not an array. setFromPoints @ QuickHull.js:43 QuickHull.js:47 Uncaught TypeError: Cannot read property 'length' of undefined

When I type var meshGeometry = new THREE.ConvexBufferGeometry( positions ); Console output is, Uncaught TypeError: point.getComponent is not a function

Do you actually pass in an array of points? What is the type of positions?

positions is an array. You can see it here. See the Pen Tetrahedral Mesh Generation by brabbit640 ( @brabbit640 ) on CodePen .

Tetrahedral Mesh Generation with points

Questions

prisoner849 November 11, 2018, 11:32am 3

Also, have a look at this forum topic:
https://discourse.threejs.org/t/grid-collection/1893?u=prisoner849

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Tetrahedral Mesh Generation with points

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