Index: vtkAVSucdReader.cxx
===================================================================
RCS file: /cvsroot/VTK/VTK/IO/vtkAVSucdReader.cxx,v
retrieving revision 1.21
diff -u -3 -p -r1.21 vtkAVSucdReader.cxx
--- a/vtkAVSucdReader.cxx	5 Jun 2004 15:20:56 -0000	1.21
+++ b/vtkAVSucdReader.cxx	28 Jun 2004 16:42:48 -0000
@@ -304,9 +304,25 @@ void vtkAVSucdReader::ExecuteInformation
       ncomp_list = new int[this->NumberOfNodeFields];
       this->ReadIntBlock(this->NumberOfNodeFields, ncomp_list);
 
+      this->NodeDataInfo = new DataInfo[this->NumberOfNodeFields];
+
+      float *mx = new float[this->NumberOfNodeFields];
+      // read now the minimums for node_data
+      this->ReadFloatBlock(this->NumberOfNodeFields, mx);
+      for(i=0; i < this->NumberOfNodeFields; i++)
+        {
+        this->NodeDataInfo[i].min = mx[i];
+        }
+      // read now the maximums for node_data
+      this->ReadFloatBlock(this->NumberOfNodeFields, mx);
+      for(i=0; i < this->NumberOfNodeFields; i++)
+        {
+        this->NodeDataInfo[i].max = mx[i];
+        }
+      delete [] mx;
+
       offset +=  1024 + 1024 + 4 + 3 * 4 * this->NumberOfNodeFields;
   
-      this->NodeDataInfo = new DataInfo[this->NumberOfNodeFields];
       k = 0;
       for(i=0; i < this->NumberOfNodeComponents; i++)
         {
@@ -334,9 +350,25 @@ void vtkAVSucdReader::ExecuteInformation
       ncomp_list = new int[this->NumberOfCellFields];
       this->ReadIntBlock(this->NumberOfCellFields, ncomp_list);
 
+      this->CellDataInfo = new DataInfo[this->NumberOfCellFields];
+
+      float *mx = new float[this->NumberOfCellFields];
+      // read now the minimums for cell_data
+      this->ReadFloatBlock(this->NumberOfCellFields, mx);
+      for(i=0; i < this->NumberOfCellFields; i++)
+        {
+        this->NodeDataInfo[i].min = mx[i];
+        }
+      // read now the maximums for cell_data
+      this->ReadFloatBlock(this->NumberOfCellFields, mx);
+      for(i=0; i < this->NumberOfCellFields; i++)
+        {
+        this->NodeDataInfo[i].max = mx[i];
+        }
+      delete [] mx;
+
       offset += 1024 + 1024 + 4 + 3 * 4 * this->NumberOfCellFields;
   
-      this->CellDataInfo = new DataInfo[this->NumberOfCellFields];
       k = 0;
       for(i=0; i < this->NumberOfCellComponents; i++)
         {
@@ -390,6 +422,28 @@ void vtkAVSucdReader::ExecuteInformation
 }
 
 //----------------------------------------------------------------------------
+void vtkAVSucdReader::GetCellDataRange(int cellComp, int index, float *min, float *max)
+{
+  if (index >= this->CellDataInfo[cellComp].veclen || index < 0)
+    {
+    index = 0;  // if wrong index, set it to zero
+    }
+  *min = this->CellDataInfo[index].min;
+  *max = this->CellDataInfo[index].max;
+}
+
+//----------------------------------------------------------------------------
+void vtkAVSucdReader::GetNodeDataRange(int nodeComp, int index, float *min, float *max)
+{
+  if (index >= this->NodeDataInfo[nodeComp].veclen || index < 0)
+    {
+    index = 0;  // if wrong index, set it to zero
+    }
+  *min = this->NodeDataInfo[index].min;
+  *max = this->NodeDataInfo[index].max;
+}
+
+//----------------------------------------------------------------------------
 void vtkAVSucdReader::ReadGeometry()
 {
   vtkUnstructuredGrid *output = this->GetOutput();
@@ -986,6 +1040,30 @@ int vtkAVSucdReader::GetNumberOfPointArr
 }
 
 //----------------------------------------------------------------------------
+void vtkAVSucdReader::EnableAllPointArrays()
+{
+    this->PointDataArraySelection->EnableAllArrays();
+}
+
+//----------------------------------------------------------------------------
+void vtkAVSucdReader::DisableAllPointArrays()
+{
+    this->PointDataArraySelection->DisableAllArrays();
+}
+
+//----------------------------------------------------------------------------
+void vtkAVSucdReader::EnableAllCellArrays()
+{
+    this->CellDataArraySelection->EnableAllArrays();
+}
+
+//----------------------------------------------------------------------------
+void vtkAVSucdReader::DisableAllCellArrays()
+{
+    this->CellDataArraySelection->DisableAllArrays();
+}
+
+//----------------------------------------------------------------------------
 int vtkAVSucdReader::GetLabel(char *string, int number, char *label)
 {
   int   i, j, k, len;
Index: vtkAVSucdReader.h
===================================================================
RCS file: /cvsroot/VTK/VTK/IO/vtkAVSucdReader.h,v
retrieving revision 1.6
diff -u -3 -p -r1.6 vtkAVSucdReader.h
--- a/vtkAVSucdReader.h	5 Jun 2004 15:20:56 -0000	1.6
+++ b/vtkAVSucdReader.h	28 Jun 2004 16:42:48 -0000
@@ -106,6 +106,19 @@ public:
   void SetPointArrayStatus(const char* name, int status);  
   void SetCellArrayStatus(const char* name, int status);
 
+  void DisableAllCellArrays();
+  void EnableAllCellArrays();
+  void DisableAllPointArrays();
+  void EnableAllPointArrays();
+
+  // get min and max value for the index-th value of a cell component
+  // index varies from 0 to (veclen - 1)
+  void GetCellDataRange(int cellComp, int index, float *min, float *max);
+
+  // get min and max value for the index-th value of a node component
+  // index varies from 0 to (veclen - 1)
+  void GetNodeDataRange(int nodeComp, int index, float *min, float *max);
+
 protected:
   vtkAVSucdReader();
   ~vtkAVSucdReader();
@@ -153,6 +166,8 @@ protected:
   struct DataInfo {
     long foffset; // offset in binary file
     int  veclen;   // number of components in the node or cell variable
+    float min;    // pre-calculated data min stored in UCD file
+    float max;    // pre-calculated data max stored in UCD file
   };
   //ETX