Index: /issm/trunk/src/c/modules/ControlConstrainInputx/ControlConstrainx.cpp
===================================================================
--- /issm/trunk/src/c/modules/ControlConstrainInputx/ControlConstrainx.cpp	(revision 4049)
+++ /issm/trunk/src/c/modules/ControlConstrainInputx/ControlConstrainx.cpp	(revision 4049)
@@ -0,0 +1,27 @@
+/*!\file ControlContrainInputx
+ * \brief: Y=Y+aX operation on inputs.
+ */
+
+#include "./ControlContrainInputx.h"
+#include "../../shared/shared.h"
+#include "../../include/include.h"
+#include "../../toolkits/toolkits.h"
+#include "../../EnumDefinitions/EnumDefinitions.h"
+
+void ControlContrainInputx(DataSet* elements,DataSet* nodes,DataSet* vertices,DataSet* loads,DataSet* materials,Parameters* parameters,int control_type,double cm_min, double cm_max){
+
+	/*intermediary:*/
+	int      i;
+
+    /*some early returns: */
+	if(isnan(cm_min) & isnan(cm_max))return;
+
+	/*First, get elements and nodes configured: */
+	elements->Configure(elements,loads, nodes,vertices, materials,parameters);
+
+	/*Go through elemnets, and ask to carry out the ControlContrain operation on inputs: */
+	for(i=0;i<elements->Size();i++){
+		Element* element=(Element*)elements->GetObjectByOffset(i);
+		element->ControlContrainInput(control_type,cm_min,cm_max);
+	}
+}
Index: /issm/trunk/src/c/modules/ControlConstrainInputx/ControlConstrainx.h
===================================================================
--- /issm/trunk/src/c/modules/ControlConstrainInputx/ControlConstrainx.h	(revision 4049)
+++ /issm/trunk/src/c/modules/ControlConstrainInputx/ControlConstrainx.h	(revision 4049)
@@ -0,0 +1,14 @@
+/*!\file:  ControlContrainInputx.h
+ * \brief header file for field extrusion
+ */ 
+
+#ifndef _CONTROLCONTRAININPUTX_H
+#define _CONTROLCONTRAININPUTX_H
+
+#include "../../DataSet/DataSet.h"
+
+/* local prototypes: */
+void ControlContrainInputx(DataSet* elements,DataSet* nodes,DataSet* vertices,DataSet* loads,DataSet* materials,Parameters* parameters,int control_type,double cm_min, double cm_max);
+
+#endif  /* _ControlContrainINPUTX_H */
+