public static ConvexArea2S fromVertices()

in commons-geometry-spherical/src/main/java/org/apache/commons/geometry/spherical/twod/ConvexArea2S.java [240:276]

• 27 lines of code
• 11 McCabe index (conditional complexity)

    public static ConvexArea2S fromVertices(final Collection<Point2S> vertices, final boolean close,
            final Precision.DoubleEquivalence precision) {

        if (vertices.isEmpty()) {
            return full();
        }

        final List<GreatCircle> circles = new ArrayList<>();

        Point2S first = null;
        Point2S prev = null;
        Point2S cur = null;

        for (final Point2S vertex : vertices) {
            cur = vertex;

            if (first == null) {
                first = cur;
            }

            if (prev != null && !cur.eq(prev, precision)) {
                circles.add(GreatCircles.fromPoints(prev, cur, precision));
            }

            prev = cur;
        }

        if (close && cur != null && !cur.eq(first, precision)) {
            circles.add(GreatCircles.fromPoints(cur, first, precision));
        }

        if (!vertices.isEmpty() && circles.isEmpty()) {
            throw new IllegalStateException("Unable to create convex area: only a single unique vertex provided");
        }

        return fromBounds(circles);
    }