make sure to check for the affine instead of creating it

Author: madhephaestus

src/main/java/eu/mihosoft/vrl/v3d/CSG.java

@@ -339,7 +339,7 @@ public MeshView newMesh() {
 		PhongMaterial m = new PhongMaterial(getColor());
 		current.setMaterial(m);
 
-		boolean hasManipulator = getManipulator() != null;
+		boolean hasManipulator = hasManipulator();
 		boolean hasAssembly = getAssemblyStorage().getValue("AssembleAffine") != Optional.empty();
 
 		if (hasManipulator || hasAssembly)
@@ -3138,9 +3138,11 @@ public CSG regenerate() {
 		if (regenerate == null)
 			return this;
 		CSG regenerate2 = regenerate.get(getUniqueId()).regenerate(this);
-		if (regenerate2 != null)
-			return regenerate2.setManipulator(this.getManipulator()).historySync(this);
-		;
+		if (regenerate2 != null) {
+			if(hasManipulator())
+				regenerate2.setManipulator(this.getManipulator());
+			return regenerate2.historySync(this);
+		}
 		return this;
 	}
 

src/main/java/eu/mihosoft/vrl/v3d/parametrics/CSGDatabaseInstance.java

@@ -99,8 +99,9 @@ public Set<String> getParameters(CSG instance) {
 	public CSGDatabaseInstance setParameterNewValue(CSG instance, String key, double newValue) {
 		IParametric function = getMapOfparametrics(instance).get(key);
 		if (function != null) {
-			CSG setManipulator = function.change(instance, key, new Long((long) (newValue * 1000)))
-					.setManipulator(instance.getManipulator());
+			CSG setManipulator = function.change(instance, key, new Long((long) (newValue * 1000)));
+			if(setManipulator.hasManipulator())
+				setManipulator.setManipulator(instance.getManipulator());
 			setManipulator.setColor(instance.getColor());
 			return this;
 		}

src/main/java/eu/mihosoft/vrl/v3d/thumbnail/ThumbnailImage.java

@@ -70,7 +70,7 @@ public static Bounds getSellectedBounds(List<CSG> incoming) {
 	public static WritableImage get(List<CSG> c,CSGDatabaseInstance instance) {
 		ArrayList<CSG> csgList = new ArrayList<CSG>();
 		for (CSG cs : c) {
-			if (cs.getManipulator() != null) {
+			if (cs.hasManipulator()) {
 				csgList.add(cs.transformed(TransformConverter.fromAffine(cs.getManipulator())).syncProperties(instance,cs));
 			} else
 				csgList.add(cs);