/*
* Copyright (c) 2011-2015, Peter Abeles. All Rights Reserved.
*
* This file is part of BoofCV (http://boofcv.org).
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package boofcv.alg.shapes.polygon;
import georegression.metric.Intersection2D_F64;
import georegression.struct.line.LineGeneral2D_F64;
import georegression.struct.shapes.Polygon2D_F64;
/**
* Utility functions used by classes which fit polygons to shapes in the image
*
* @author Peter Abeles
*/
public class UtilShapePolygon {
/**
* Finds the intersections between the four lines and converts it into a quadrilateral
*
* @param lines Assumes lines are ordered
*/
public static boolean convert( LineGeneral2D_F64[] lines , Polygon2D_F64 poly ) {
for (int i = 0; i < poly.size(); i++) {
int j = (i + 1) % poly.size();
if( null == Intersection2D_F64.intersection(lines[i], lines[j], poly.get(j)) )
return false;
}
return true;
}
}