Embedded Files
A triangle mesh data object is used to represent complex surfaces that can be described by a set of adjacent triangles.
Note: you will need to include GocadData in your Module Dependencies list
Creating a TriangleMesh data object from a file
Creating a TriangleMesh data object from a file
The most common file format for triangle mesh data is the Gocad format from Paradigm. Gocad files have extension ".ts". A Gocad file can be loaded as follows:
import com.interactive.intviewerapi.data.IData; import com.interactive.intviewerapi.data.tmesh.ITriangleMeshData; import com.interactive.intviewerapi.util.DialogManager; ... IData gcd = null; try { gcd = IData.factory.createNewInstance("/data/GOCAD/SALT.ts"); } catch (Exception ex) { DialogManager.getDefault().showMessageDialog("Error loading Gocad file SALT.ts.", "Error Loading Gocad File", DialogManager.ERROR); return; }Since Gocad files can contain various types of data, you need to verify that the type of data returned is indeed a ITriangleMeshData object.
if (gcd instanceof ITriangleMeshData) { ... }Creating a TriangleMesh data object programmatically
Creating a TriangleMesh data object programmatically
float vertices[] = {0, 0, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 0, 0, 1, 1, 0, 1, 1, 1, 1, 0, 1, 1}; int indexes[] = {0, 1, 3, 1, 2, 3, 4, 5, 0, 5, 0, 0, 1, 5, 2, 5, 6, 2, 3, 2, 7, 2, 6, 7, 4, 0, 7, 0, 3, 7, 7, 6, 4}; ITriangleMeshData cube = new TriangleMeshData("cube", vertices, indexes);Retrieving the vertices and indexes of a TriangleMesh
Retrieving the vertices and indexes of a TriangleMesh
ITriangleMeshData data = ... int[] indexes = data.getIndexes(); float[] vertices = data.getVertices(); System.out.println("Number of triangles = " + (data.getIndexes().length/3));Smoothing a TriangleMesh surface
Smoothing a TriangleMesh surface
Utility class TriangleSmoothing provides an implementation of Loop's scheme for smoothing a triangle mesh surface. Each path subdvides the triangles into four sub-triangles.
import com.interactive.intviewerapi.data.tmesh.TriangleSmoothing; ... TriangleSmoothing ts = new TriangleSmoothing(2, cube.getVertices(), cube.getIndexes()); ITriangleMeshData smoothCube = new TriangleMeshData("smooth cube", ts.getVertices(), ts.getIndexes());before smoothing after smoothing (2 passes)
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