How to get the mesh(vertex and index buffers) from the object I obtained from the method `getRenderP-CodePudding

I want to obtain the mesh from the object I obtain from calling getRenderProxy method in node.js. This is my implementation, where I pass an ObjectID from the model tree:

function getMeshByDbID(dbID) {
var instanceTree = getInstanceTree();
var mesh = undefined;

instanceTree.enumNodeFragments(
  dbID,
  function (fragId) {
    mesh = window.NOP_VIEWER.impl.getRenderProxy(
      window.NOP_VIEWER.model,
      fragId
    );
  },
  true
);

return mesh;

}

I get an object, as shown below.

But whenever I try to extract geometry(by calling mesh.geometry) from this object, I get undefined. The structure of geometry object within the above object is as follows: I want to get the mesh, specifically, the ib and vb arrays in the figure above for performing calculations. Any help is appreciated.

CodePudding user response：

Your approach looks good. You can take a look at this article where Philippe described how to do Boolean operations in the Forge Viewer.