diff --git a/include/hexagram/cluster.h b/include/hexagram/cluster.h
index 8514dc6..86b33e8 100644
--- a/include/hexagram/cluster.h
+++ b/include/hexagram/cluster.h
@@ -24,6 +24,14 @@ typedef struct _hexagram_cluster {
     } state;
 } hexagram_cluster;
 
+void hexagram_cluster_resize(hexagram_cluster *cluster,
+                             double width,
+                             double height);
+
+void hexagram_cluster_init(hexagram_cluster *cluster,
+                           double width,
+                           double height);
+
 hexagram_cluster *hexagram_cluster_new(double width,
                                        double height);
 
diff --git a/src/cluster.c b/src/cluster.c
index 2184ccd..1338366 100644
--- a/src/cluster.c
+++ b/src/cluster.c
@@ -3,13 +3,9 @@
 
 #include <hexagram/cluster.h>
 
-hexagram_cluster *hexagram_cluster_new(double width, double height) {
-    hexagram_cluster *cluster;
-
-    if ((cluster = malloc(sizeof(*cluster))) == NULL) {
-        goto error_malloc_cluster;
-    }
-
+void hexagram_cluster_resize(hexagram_cluster *cluster,
+                             double width,
+                             double height) {
     /*
      * Ensure correct cluster aspect ratio
      */
@@ -50,11 +46,24 @@ hexagram_cluster *hexagram_cluster_new(double width, double height) {
 
     cluster->width  = width;
     cluster->height = height;
+}
+
+void hexagram_cluster_init(hexagram_cluster *cluster,
+                           double width,
+                           double height) {
+    hexagram_cluster_resize(cluster, width, height);
 
-    /*
-     * Initialize mutable state
-     */
     memset(&cluster->state, '\0', sizeof(cluster->state));
+}
+
+hexagram_cluster *hexagram_cluster_new(double width, double height) {
+    hexagram_cluster *cluster;
+
+    if ((cluster = malloc(sizeof(*cluster))) == NULL) {
+        goto error_malloc_cluster;
+    }
+
+    hexagram_cluster_init(cluster, width, height);
 
     return cluster;