diff --git a/cmake/FindSTIM.cmake b/cmake/FindSTIM.cmake
index c05f9f6..cb2bcc7 100644
--- a/cmake/FindSTIM.cmake
+++ b/cmake/FindSTIM.cmake
@@ -5,23 +5,12 @@ include(FindPackageHandleStandardArgs)
 
 set(STIM_ROOT $ENV{STIM_ROOT})
 
-IF(NOT UNIX)
-    IF(NOT STIM_ROOT)
-        MESSAGE("ERROR: STIM_ROOT environment variable must be set!")
-    ENDIF(NOT STIM_ROOT)
+IF(NOT STIM_ROOT)
+    MESSAGE("ERROR: STIM_ROOT environment variable must be set!")
+ENDIF(NOT STIM_ROOT)
 
-    FIND_PATH(STIM_INCLUDE_DIRS DOC "Path to GLFW include directory."
-            NAMES stim/image/image.h
-            PATHS ${STIM_ROOT})
-ENDIF(NOT UNIX)
-
-find_package_handle_standard_args(STIM DEFAULT_MSG STIM_INCLUDE_DIRS)
-
-if(STIM_FOUND)
-    set(STIM_INCLUDE_DIRS ${STIM_INCLUDE_DIRS})
-elseif(STIM_FOUND)
-	message("STIM library not found. Set the STIM_ROOT environment variable to the STIM location.")
-	message("STIMLIB can be found here: https://git.stim.ee.uh.edu/codebase/stimlib")
-endif(STIM_FOUND)
+    FIND_PATH(STIM_INCLUDE_DIRS DOC "Path to STIM include directory."
+              NAMES stim/image/image.h
+              PATHS ${STIM_ROOT})
 
 find_package_handle_standard_args(STIM DEFAULT_MSG STIM_INCLUDE_DIRS)
diff --git a/stim/image/image.h b/stim/image/image.h
index 61ffe8d..7cc10ce 100644
--- a/stim/image/image.h
+++ b/stim/image/image.h
@@ -247,10 +247,11 @@ public:
 			outfile.write((char*)img, sizeof(T) * R[0] * R[1] * R[2]);
 			outfile.close();
 		}
-
-		cimg_library::CImg<T> cimg((unsigned int)R[1], (unsigned int)R[2], 1, (unsigned int)R[0]);
-		get_noninterleaved(cimg.data());
-		cimg.save(filename.c_str());
+		else {
+			cimg_library::CImg<T> cimg((unsigned int)R[1], (unsigned int)R[2], 1, (unsigned int)R[0]);
+			get_noninterleaved(cimg.data());
+			cimg.save(filename.c_str());
+		}
 	}
 
 	/// Returns an image cast to the specified format
diff --git a/stim/visualization/obj.h b/stim/visualization/obj.h
index a788b4c..967dee6 100644
--- a/stim/visualization/obj.h
+++ b/stim/visualization/obj.h
@@ -183,7 +183,7 @@ protected:
 		void get_v(std::vector<unsigned>& v){
 			v.resize(size());							//resize the vector to match the number of vertices
 			for(unsigned int i = 0; i<size(); i++){		//for each vertex
-				v[i] = at(i)[0];						//copy the vertex index (1st element of triplet)
+				v[i] = (unsigned)at(i)[0];						//copy the vertex index (1st element of triplet)
 			}
 		}
 
@@ -705,6 +705,13 @@ public:
 		stim::vec<T> v = V[vi];
 		return v;
 	}
+	std::vector< stim::vec<T> > getAllV() {
+		std::vector< stim::vec<T> > v(V.size());
+		for (unsigned i = 0; i < V.size(); i++)
+			v[i] = V[i];
+		return v;
+	}
+
 	std::vector< stim::vec<T> > getAllV(std::vector<unsigned> vertexIndices){
 		 std::vector< stim::vec<T> > allVerticesList;
 		 for (unsigned int i=0; i<numV(); i++)
@@ -785,7 +792,7 @@ public:
 	stim::vec<T> centroid(){
 
 		//get the number of coordinates
-		unsigned int N = V[0].size();
+		size_t N = V[0].size();
 
 		//allocate space for the minimum and maximum coordinate points (bounding box corners)
 		stim::vec<float> vmin, vmax;
@@ -793,9 +800,9 @@ public:
 		vmax.resize(N);
 
 		//find the minimum and maximum value for each coordinate
-		unsigned int NV = V.size();
-		for(unsigned int v = 0; v < NV; v++)
-			for(unsigned int i = 0; i < N; i++){
+		size_t NV = V.size();
+		for(size_t v = 0; v < NV; v++)
+			for(size_t i = 0; i < N; i++){
 
 				if(V[v][i] < vmin[i])
 					vmin[i] = V[v][i];
@@ -809,9 +816,35 @@ public:
 		return c;
 	}
 
+	stim::vec<T> dimensions() {
+		//get the number of coordinates
+		size_t N = V[0].size();
+
+		//allocate space for the minimum and maximum coordinate points (bounding box corners)
+		stim::vec<float> vmin, vmax;
+		vmin.resize(N);
+		vmax.resize(N);
+
+		//find the minimum and maximum value for each coordinate
+		size_t NV = V.size();
+		for (size_t v = 0; v < NV; v++)
+			for (size_t i = 0; i < N; i++) {
+
+				if (V[v][i] < vmin[i])
+					vmin[i] = V[v][i];
+				if (V[v][i] > vmax[i])
+					vmax[i] = V[v][i];
+			}
+
+		//find the soze using the min and max points
+		stim::vec<T> d = vmax - vmin;
+
+		return d;
+	}
+
 	/// Returns the number of lines in the OBJ structure
 	unsigned int numL(){
-		return L.size();
+		return (unsigned)L.size();
 	}
 
 	/// Returns all points in the line corresponding to a given index
@@ -993,6 +1026,12 @@ public:
 
 	}
 
+	/// Return the number of vertices in a line
+	/// @param l is the line index
+	unsigned getLineN(unsigned l) {
+		return (unsigned)L[l].size();
+	}
+
 
 
 
--
libgit2 0.21.4