Added better error report on convexification error.

pom.xml

@@ -11,7 +11,7 @@
     </parent>
 
     <artifactId>convexify</artifactId>
-    <version>2.0.5</version>
+    <version>2.0.6</version>
 
     <packaging>jar</packaging>
 
@@ -24,7 +24,6 @@
         <dependency>
             <groupId>org.bioimageanalysis.icy</groupId>
             <artifactId>protocols</artifactId>
-            <version>${protocols.version}</version>
         </dependency>
         <dependency>
             <groupId>org.bioimageanalysis.icy</groupId>

src/main/java/plugins/adufour/roi/Convexify.java

@@ -149,6 +149,8 @@ public class Convexify extends EzPlug implements ROIBlock
         catch (Throwable t)
         {
             // can happen with QuickHull3D / ROI3DPolygonalMesh...
+            throw new IllegalArgumentException(
+                    "Cannot compute convex hull for ROI " + roi.getName() + " of type " + roi.getClassName() + ".", t);
         }
 
         if (output == null)