Added Testcode for the four sided scanner and fixed a small typo

src/main/java/com/cringe_studios/christmastreescanning/Homograph4.java

@@ -15,16 +15,31 @@ public class Homograph4 implements Homograph{
 		Point2D[] flippedBehindSide = new Point2D[frontSidePoints.length];
 		Point2D[] flippedLeftSide = new Point2D[frontSidePoints.length];
 		
+		System.out.println("Homograph:");
+		
 		for(int i = 0; i < frontSidePoints.length; i++) {
 			// the x coordinate goes from -1 to 1 after normalization
+			
+			System.out.println("f " + frontSidePoints[i].toString());
+			System.out.println("r " + rightSidePoints[i].toString());
+			
 			flippedBehindSide[i] = new Point2D.Double(behindSidePoints[i].getX() * -1.0, behindSidePoints[i].getY());
+			System.out.println("b " + behindSidePoints[i].toString() + " to " + flippedBehindSide[i].toString());
 			flippedLeftSide[i] = new Point2D.Double(leftSidePoints[i].getX() * -1.0, leftSidePoints[i].getY());
+			System.out.println("l " + leftSidePoints[i].toString() + " to " + flippedLeftSide[i].toString());
+			
+			
 		}
 
 		
 		for(int i = 0; i < frontSidePoints.length; i++) {
 			Point2D interpolatedFrontBehind = new PointInterpolator(frontSidePoints[i], flippedBehindSide[i]).getCenter();
-			Point2D interpolatedRightLeft = new PointInterpolator(rightSidePoints[i], leftSidePoints[i]).getCenter();
+			Point2D interpolatedRightLeft = new PointInterpolator(rightSidePoints[i], flippedLeftSide[i]).getCenter();
+			
+			System.out.println("fb " + frontSidePoints[i].toString() + " + " + flippedBehindSide[i].toString() + " to " + interpolatedFrontBehind.toString());
+			System.out.println("rl " + rightSidePoints[i].toString() + " + " + leftSidePoints[i].toString() + " to " + interpolatedRightLeft.toString());
+			
+			
 			
 			mergedFrontBack[i] = interpolatedFrontBehind;
 			mergedRightLeft[i] = interpolatedRightLeft;

src/test/java/com/cringe_studios/cristmastreescanning/ExampleTest.java

@@ -16,6 +16,7 @@ import javax.imageio.ImageIO;
 
 import org.junit.jupiter.api.Test;
 
+import com.cringe_studios.christmastreescanning.FourSidedScanner;
 import com.cringe_studios.christmastreescanning.Homograph;
 import com.cringe_studios.christmastreescanning.Point3D;
 import com.cringe_studios.christmastreescanning.Scanner;
@@ -32,6 +33,7 @@ public class ExampleTest {
 	
 	@Test
 	public void scannerTest() {
+		System.out.println("ScannerTest1:");
 		try {
 			BufferedImage LED1Front = ImageIO.read(ExampleTest.class.getResourceAsStream("/ScannerTest1_LED1_front.png"));
 			BufferedImage LED2Front = ImageIO.read(ExampleTest.class.getResourceAsStream("/ScannerTest1_LED2_front.png"));
@@ -102,6 +104,96 @@ public class ExampleTest {
 		} catch (IOException e) {
 			e.printStackTrace();
 		}
+		System.out.println("-----EndOf ScannerTest1");
+		System.out.println();
+	}
+	
+	@Test
+	public void scannerTest2() {
+		System.out.println("ScannerTest2:");
+		try {
+			BufferedImage LED1Front = ImageIO.read(ExampleTest.class.getResourceAsStream("/ScannerTest1_LED1_front.png"));
+			BufferedImage LED2Front = ImageIO.read(ExampleTest.class.getResourceAsStream("/ScannerTest1_LED2_front.png"));
+			BufferedImage LED3Front = ImageIO.read(ExampleTest.class.getResourceAsStream("/ScannerTest1_LED3_front.png"));
+			BufferedImage LED1Right = ImageIO.read(ExampleTest.class.getResourceAsStream("/ScannerTest1_LED1_right.png"));
+			BufferedImage LED2Right = ImageIO.read(ExampleTest.class.getResourceAsStream("/ScannerTest1_LED2_right.png"));
+			BufferedImage LED3Right = ImageIO.read(ExampleTest.class.getResourceAsStream("/ScannerTest1_LED3_right.png"));
+			
+			BufferedImage LED1Behind= ImageIO.read(ExampleTest.class.getResourceAsStream("/ScannerTest2_LED1_back.png"));
+			BufferedImage LED2Behind= ImageIO.read(ExampleTest.class.getResourceAsStream("/ScannerTest2_LED2_back.png"));
+			BufferedImage LED3Behind= ImageIO.read(ExampleTest.class.getResourceAsStream("/ScannerTest2_LED3_back.png"));
+			BufferedImage LED1Left = ImageIO.read(ExampleTest.class.getResourceAsStream("/ScannerTest2_LED1_left.png"));
+			BufferedImage LED2Left = ImageIO.read(ExampleTest.class.getResourceAsStream("/ScannerTest2_LED2_left.png"));
+			BufferedImage LED3Left = ImageIO.read(ExampleTest.class.getResourceAsStream("/ScannerTest2_LED3_left.png"));
+			
+			Scanner scanner = new FourSidedScanner(new BufferedImage[] {LED1Front, LED2Front, LED3Front},
+					                               new BufferedImage[] {LED1Right, LED2Right, LED3Right},
+					                               new BufferedImage[] {LED1Behind, LED2Behind, LED3Behind},
+					                               new BufferedImage[] {LED1Left, LED2Left, LED3Left});
+			scanner.setGammaDelta((byte)(0.1 * 255));
+			Homograph homo = scanner.scan();
+			homo.merge();
+			homo.renormalize();
+			Point3D points[] = homo.getPoints();
+			
+			System.out.println(Arrays.toString(points));
+			
+			boolean foundXMin = false; // -1
+			boolean foundXMax = false; // 1
+			boolean foundYMin = false; // -1
+			boolean foundYMax = false; // 1
+			boolean foundZMin = false; // 0
+			boolean foundZMax = false; // 1
+			
+			for(int i = 0; i < points.length; i++) {
+				if(Math.abs(points[i].x - (-1.0)) < 0.001) {
+					foundXMin = true;
+				}
+				
+				if(Math.abs(points[i].x - (1.0)) < 0.001) {
+					foundXMax = true;
+				}
+				
+				if(Math.abs(points[i].y - (-1.0)) < 0.001) {
+					foundYMin = true;
+				}
+				
+				if(Math.abs(points[i].y - (1.0)) < 0.001) {
+					foundYMax = true;
+				}
+				
+				if(Math.abs(points[i].z - (1.0)) < 0.001) {
+					foundZMax = true;
+				}
+				
+				if(Math.abs(points[i].z - (0.0)) < 0.001) {
+					foundZMin = true;
+				}
+				
+			}
+			
+			if(foundXMin && foundXMax && foundYMin && foundYMax && foundZMin && foundZMax) {
+				assertTrue(true);
+			}else {
+				System.out.println(foundXMin );
+                System.out.println(foundXMax );
+				System.out.println(foundYMin );
+			    System.out.println(foundYMax );
+				System.out.println(foundZMin );
+				System.out.println(foundZMax );
+				
+				assertTrue(false);
+			}
+			
+			
+			
+			
+		} catch (IOException e) {
+			e.printStackTrace();
+		}
+		
+		System.out.println("-----EndOf ScannerTest2");
+		System.out.println();
 	}