Test rasterize method with combined regions

imglib · Jan 27, 2017 · a8712f0 · a8712f0
1 parent 3340fa5
commit a8712f0
Showing 1 changed file with 37 additions and 0 deletions.
diff --git a/src/test/java/net/imglib2/roi/geometric/GeometricShapeTest.java b/src/test/java/net/imglib2/roi/geometric/GeometricShapeTest.java
@@ -6,6 +6,7 @@
 
 import java.io.IOException;
 
+import net.imglib2.Cursor;
 import net.imglib2.RandomAccess;
 import net.imglib2.RealPoint;
 import net.imglib2.RealRandomAccess;
@@ -14,6 +15,7 @@
 import net.imglib2.realtransform.AffineRealRandomAccessible;
 import net.imglib2.realtransform.AffineTransform3D;
 import net.imglib2.realtransform.RealViews;
+import net.imglib2.roi.IterableRegion;
 import net.imglib2.roi.Regions;
 import net.imglib2.roi.operators.RealBinaryExclusiveOr;
 import net.imglib2.roi.operators.RealBinaryIntersection;
@@ -551,6 +553,41 @@ public void testRasterizedHyperEllipsoid()
 		assertEquals( rhe.max( 1 ), 4 );
 	}
 
+	@Test
+	public void testCombineRaster()
+	{
+		final HyperRectangle hc0 = GeomRegions.hyperRectangle( new RealPoint( new double[] { 10, 10 } ), new double[] { 5, 8 } );
+		final HyperRectangle hc1 = GeomRegions.hyperRectangle( new RealPoint( new double[] { 5, 5 } ), new double[] { 10, 2 } );
+		final HyperRectangle hc2 = GeomRegions.hyperRectangle( new RealPoint( new double[] { 20, 10 } ), new double[] { 9, 4 } );
+
+		final RealRandomAccessibleRealInterval< BoolType > combine = Regions.intersect( hc0, Regions.intersect( hc1, hc2 ) );
+
+		final RasterizedRegion< RealRandomAccessibleRealInterval< BoolType > > rcombine = Regions.rasterize( combine );
+		final RandomAccess< BoolType > rra = rcombine.randomAccess();
+
+		rra.setPosition( new int[] { 13, 6 } );
+		assertTrue( rra.get().get() );
+
+		rra.setPosition( new int[] { -1, 4 } );
+		assertFalse( rra.get().get() );
+		rra.setPosition( new int[] { 14, 10 } );
+		assertFalse( rra.get().get() );
+		rra.setPosition( new int[] { 20, 8 } );
+		assertFalse( rra.get().get() );
+
+		final IterableRegion< BoolType > itrCombine = Regions.iterable( rcombine );
+		final Cursor< Void > c = itrCombine.cursor();
+
+		int s = 0;
+		while( c.hasNext() )
+		{
+			c.next();
+			s++;
+		}
+
+		assertTrue( s == 10 ); // This is true because a hyperRectangle contains all boundary points
+	}
+
 	public static void main(final String... args) throws IOException {
 		//new GeometricShapeTest().testHyperEllipsoid();
 		//new GeometricShapeTest().testHyperCubeWithoutVolume();