bundles/common/org.eclipse.apogy.common.geometry.data3d/src-gen-custom/org/eclipse/apogy/common/geometry/data3d/impl/TriangularMeshToNormalPointCloudCustomImpl.java

/*******************************************************************************
 * Copyright (c) 2018 Agence spatiale canadienne / Canadian Space Agency 
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Pierre Allard, 
 *     Regent L'Archeveque - initial API and implementation
 *     
 * SPDX-License-Identifier: EPL-1.0
 *     
 *******************************************************************************/
package org.eclipse.apogy.common.geometry.data3d.impl;

import java.util.ArrayList;
import java.util.List;

import javax.vecmath.Point3d;
import javax.vecmath.Vector3d;

import org.eclipse.apogy.common.geometry.data3d.ApogyCommonGeometryData3DFactory;
import org.eclipse.apogy.common.geometry.data3d.CartesianPositionCoordinates;
import org.eclipse.apogy.common.geometry.data3d.CartesianTriangularMesh;
import org.eclipse.apogy.common.geometry.data3d.NormalPointCloud;
import org.eclipse.apogy.common.geometry.data3d.TriangularMeshNormalsCalculator;

public class TriangularMeshToNormalPointCloudCustomImpl extends TriangularMeshToNormalPointCloudImpl {
	@Override
	public NormalPointCloud process(CartesianTriangularMesh input) throws Exception {

		NormalPointCloud output = ApogyCommonGeometryData3DFactory.eINSTANCE.createNormalPointCloud();

		List<Vector3d> normals = null;

		// We extract the points from input.
		List<Point3d> points = new ArrayList<Point3d>(input.getPoints().size());

		for (CartesianPositionCoordinates point : input.getPoints()) {
			points.add(point.asPoint3d());
		}

		// If the normals are not present, we compute the normals.
		if (input.getNormals() == null || input.getNormals().size() != input.getPoints().size()) {
			// We compute the normals.
			TriangularMeshNormalsCalculator normalsCalculator = ApogyCommonGeometryData3DFactory.eINSTANCE
					.createTriangularMeshNormalsCalculator();
			input = normalsCalculator.process(input);
		}

		// We process the normals.
		if (input.getNormals() != null && input.getNormals().size() > 0) {
			normals = new ArrayList<Vector3d>(input.getNormals().size());

			for (Vector3d normal : input.getNormals()) {
				normals.add(new Vector3d(normal));
			}
		}

		output.setPoints(points);
		output.setNormals(normals);

		return output;
	}

} // TriangularMeshToNormalPointCloudImpl