wblut hemesh how to use HEC_FromSimpleMesh

robbby

wblut hemesh how to use HEC_FromSimpleMesh

in Contributed Library Questions • 2 years ago

I'm still fairly new at processing and even newer at 3D object creation. I've successfully created a 3d mesh in processing. I now want to apply some modifiers using the HEMESH library. The library uses HEMESH objects and has a method to create these objects from ordinary meshes. The javadocs say that HEC_FromSimpleMesh Creates a new mesh from a list of vertices and faces. Here is the method:

public HEC_FromSimpleMesh setSource(wblut.geom.WB_SimpleMesh simpleMesh)

    Set simpleMesh source

    Parameters:
        simpleMesh - source
    Returns:
        self

My problem is that I don't know what format to use in setSource. Should I use a mesh object, a 2d array, 2 arrays....I just don't know.

I would appreciate any help.

Replies(2)

PhiLho

Re: wblut hemesh how to use HEC_FromSimpleMesh

2 years ago

You have to use a WB_SimpleMesh object. How to create one is what to search in the doc.

frederikw..

Re: wblut hemesh how to use HEC_FromSimpleMesh

2 years ago

Hi,

for now, the WB_SimpleMesh is a simple placeholder for a vertexlist and a facelist. Its main purpose is to provide a lower memory way to store a HE_Mesh.

There are several options to get your mesh into Processing:

1) use the HET_Recorder(), see the tutorial provided with the code

2) use HEC_FromFaceList(), this creator needs an array of points (e.g. as a float[N][3]) and a facelist. A facelist is a 2D array of int[][]. The first index gives you the current face, the second index gives you the index of the point in the point array. So basically you create an array that holds the point coordinates and another array of arrays that gives you all the points per face face...(Actually with those two arrays you could create a new WB_SimpleMesh and use HEC_FromSimpleMesh, but there's no reason to go the long way around)

If you want, I can plug in the code for you, just send it to fvanhoutte@wblut.com.