From: pkv <pkv@opencascade.com>
Date: Wed, 28 Sep 2005 09:05:21 +0000 (+0000)
Subject: Implementation the class controlling the local and global scalar bars
X-Git-Tag: BR-D5-38-2003_D2005-12-10~124
X-Git-Url: http://git.salome-platform.org/gitweb/?a=commitdiff_plain;h=c1381d59ade907f7e946e62bc1a9f43ecaf4d9e7;p=modules%2Fvisu.git

Implementation the class controlling the local and global scalar bars
---

diff --git a/src/PIPELINE/VISU_ScalarBarCtrl.cxx b/src/PIPELINE/VISU_ScalarBarCtrl.cxx
new file mode 100644
index 00000000..1fa1cfcb
--- /dev/null
+++ b/src/PIPELINE/VISU_ScalarBarCtrl.cxx
@@ -0,0 +1,301 @@
+//  VISU OBJECT : interactive object for VISU entities implementation
+//
+//  Copyright (C) 2003  OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
+//  CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS 
+// 
+//  This library is free software; you can redistribute it and/or 
+//  modify it under the terms of the GNU Lesser General Public 
+//  License as published by the Free Software Foundation; either 
+//  version 2.1 of the License. 
+// 
+//  This library is distributed in the hope that it will be useful, 
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of 
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU 
+//  Lesser General Public License for more details. 
+// 
+//  You should have received a copy of the GNU Lesser General Public 
+//  License along with this library; if not, write to the Free Software 
+//  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA 
+// 
+//  See http://www.opencascade.org/SALOME/ or email : webmaster.salome@opencascade.org 
+//
+//
+// File:    VISU_ScalarBarCtrl.cxx
+// Author:  Peter KURNEV
+// Module : VISU
+
+#include "VISU_ScalarBarCtrl.hxx"
+#include <vtkObjectFactory.h>
+#include <vtkActor2D.h> 
+#include <vtkCoordinate.h>
+#include <vtkRenderer.h>
+#include <vtkScalarsToColors.h>
+#include <vtkLookupTable.h>
+#include <vtkTextProperty.h>
+#include <vtkScalarBarActor.h>
+#include <vtkIdType.h>
+#include <string.h>
+//
+vtkStandardNewMacro(VISU_ScalarBarCtrl);
+//==================================================================
+// function : Constructor
+// purpose  :
+//==================================================================
+VISU_ScalarBarCtrl::VISU_ScalarBarCtrl()
+{
+  myDistance=0.15;
+  myL=0.8;
+  myB=0.15;
+  myX0=0.05;
+  myY0=0.1;
+  //
+  int i;
+  //
+  for (i=0; i<2; ++i){
+    float aX;
+    
+    aX=(float)i;
+    myRangeLocal[i]=aX;
+    myRangeGlobal[i]=aX;
+  }
+  //
+  //myMode=0; //0-simple ; 1-global; 2-local 
+  SetMode(0);
+  //
+  myScalarBarNumberMax=2;
+  for (i=0; i<myScalarBarNumberMax; ++i){
+    myXLT[i]=vtkLookupTable::New();
+    mySBA[i]=vtkScalarBarActor::New();
+  } 
+  //
+  SetOrientation(1);//VERTICAL
+}
+//==================================================================
+// function : ~
+// purpose  :
+//==================================================================
+VISU_ScalarBarCtrl::~VISU_ScalarBarCtrl()
+{
+}
+//==================================================================
+// function : SetMode
+// purpose  :
+//==================================================================
+void VISU_ScalarBarCtrl::SetMode(const int theMode)
+{
+  myMode=theMode;
+  myScalarBarNumber=myScalarBarNumberMax;
+  if(!myMode){
+    myScalarBarNumber=1;
+  }
+}
+//==================================================================
+// function : GetMode
+// purpose  :
+//==================================================================
+int  VISU_ScalarBarCtrl::GetMode()const
+{
+  return myMode;
+}
+//==================================================================
+// function : SetRangeLocal
+// purpose  :
+//==================================================================
+void VISU_ScalarBarCtrl::SetRangeLocal(const float *theX)
+{
+  SetRangeLocal(theX[0], theX[1]);
+}
+//==================================================================
+// function : SetRangeLocal
+// purpose  :
+//==================================================================
+void VISU_ScalarBarCtrl::SetRangeLocal(const float theX1,
+					    const float theX2)
+{
+  myRangeLocal[0]=theX1;
+  myRangeLocal[1]=theX2;
+}
+//==================================================================
+// function : GetRangeLocal
+// purpose  :
+//==================================================================
+const float* VISU_ScalarBarCtrl::GetRangeLocal()const
+{
+  return myRangeLocal;
+}
+//==================================================================
+// function : SetRangeGlobal
+// purpose  :
+//==================================================================
+void VISU_ScalarBarCtrl::SetRangeGlobal(const float *theX)
+{
+  SetRangeGlobal(theX[0], theX[1]);
+}
+//==================================================================
+// function : SetRangeGlobal
+// purpose  :
+//==================================================================
+void VISU_ScalarBarCtrl::SetRangeGlobal(const float theX1,
+					    const float theX2)
+{
+  myRangeGlobal[0]=theX1;
+  myRangeGlobal[1]=theX2;
+}
+//==================================================================
+// function : GetRangeGlobal
+// purpose  :
+//==================================================================
+const float* VISU_ScalarBarCtrl::GetRangeGlobal()const
+{
+  return myRangeGlobal;
+}
+//==================================================================
+// function : SetOrientation
+// purpose  :
+//==================================================================
+void VISU_ScalarBarCtrl::SetOrientation(const int theOrientation) 
+{
+  for (int i=0; i<myScalarBarNumberMax; ++i){
+    mySBA[i]->SetOrientation(theOrientation);
+  }
+}
+//==================================================================
+// function : GetOrientation
+// purpose  :
+//==================================================================
+int VISU_ScalarBarCtrl::GetOrientation()const 
+{
+  return mySBA[0]->GetOrientation();
+}
+//==================================================================
+// function : GetScalarBarActor
+// purpose  :
+//==================================================================
+vtkScalarBarActor* VISU_ScalarBarCtrl::GetScalarBarActor(const int theIndex) 
+{
+  if (theIndex>-1 && theIndex<myScalarBarNumberMax){
+    return mySBA[theIndex];
+  }
+  return NULL;
+}
+//==================================================================
+// function : GetLookupTable
+// purpose  :
+//==================================================================
+vtkLookupTable* VISU_ScalarBarCtrl::GetLookupTable(const int theIndex) 
+{
+  if (theIndex>-1 && theIndex<myScalarBarNumberMax){
+    return myXLT[theIndex];
+  }
+  return NULL;
+}
+//==================================================================
+// function : PrepareData
+// purpose  :
+//==================================================================
+int VISU_ScalarBarCtrl::PrepareData()
+{
+  int i, aOrientation;
+  //
+  // Apply Orientation
+  aOrientation=GetOrientation();
+  //
+  for (i=0; i<myScalarBarNumberMax; ++i){
+    vtkCoordinate * pCoordinate=mySBA[i]->GetPositionCoordinate();
+    pCoordinate->SetCoordinateSystemToNormalizedViewport();
+    //
+    if (aOrientation) {// VERTICAL
+      pCoordinate->SetValue(myX0+i*myDistance, myY0);
+      mySBA[i]->SetWidth(myB);
+      mySBA[i]->SetHeight(myL);
+    }
+    else { 
+      pCoordinate->SetValue(myX0, myY0+i*myDistance);
+      mySBA[i]->SetWidth(myL);
+      mySBA[i]->SetHeight(myB);
+    }
+  }
+  //
+  // Initialize Lookup Tables and Scalar Bars 
+  for (i=0; i<myScalarBarNumberMax; ++i){
+    myXLT[i]->SetRange(myRangeGlobal[0], myRangeGlobal[1]);
+    myXLT[i]->Build(); 
+    mySBA[i]->SetLookupTable(myXLT[i]);
+  } 
+  //
+  if (!myMode){
+    return 0; //nothing to do 
+  }
+  //
+  // Fill Lookup Tables
+  size_t aN4=4*sizeof(unsigned char);
+  unsigned char *pTL, *pTG;
+  vtkIdType j, aNbColors, aG[2], dG;
+  //
+  for (j=0; j<2; ++j) {
+    aG[j]=myXLT[0]->GetIndex(myRangeLocal[j]);
+  }
+  dG=aG[1]-aG[0];
+  aNbColors=myXLT[0]->GetNumberOfColors();
+  //
+  if (myMode==1){ 
+    vtkIdType aGj;
+    //
+    for (j=0; j<aNbColors; ++j){
+      pTL=myXLT[1]->GetPointer(j);
+      
+      aGj=aG[0]+j*dG/aNbColors; 
+      pTG=myXLT[0]->GetPointer(aGj);
+      memcpy(pTL, pTG, aN4); 
+    }
+  }
+  else {
+    unsigned char *pTL0, *pTL1;
+    vtkIdType aLj;
+    //
+    pTL0=myXLT[1]->GetPointer(0);
+    pTL1=myXLT[1]->GetPointer(aNbColors-1);
+    for (j=0; j<aNbColors; ++j){
+      pTG=myXLT[0]->GetPointer(j);
+    
+      if (j<aG[0]) {
+	pTL=pTL0;
+      }
+      else if (j>aG[1]) {
+	pTL=pTL1; 
+      }
+      else {
+	aLj=(j-aG[0])*aNbColors/dG;
+	pTL=myXLT[1]->GetPointer(aLj);
+      }
+      memcpy(pTG, pTL, aN4); 
+    }
+  }
+  myXLT[1]->SetRange(myRangeLocal[0], myRangeLocal[1]);
+  return 0;
+}
+//==================================================================
+// function : AddToRender
+// purpose  :
+//==================================================================
+void VISU_ScalarBarCtrl::AddToRender(vtkRenderer* theRenderer)
+{
+  int i, iErr;
+  //
+  iErr=PrepareData();
+  if (!iErr){
+    for (i=0; i<myScalarBarNumber; ++i){
+      theRenderer->AddActor2D(mySBA[i]);
+    }
+  }
+}
+//==================================================================
+// function : RemoveFromRender
+// purpose  :
+//==================================================================
+void VISU_ScalarBarCtrl::RemoveFromRender(vtkRenderer* theRenderer)
+{
+  for (int i=0; i<myScalarBarNumber; ++i){
+    theRenderer->RemoveActor2D(mySBA[i]);
+  }
+}
diff --git a/src/PIPELINE/VISU_ScalarBarCtrl.hxx b/src/PIPELINE/VISU_ScalarBarCtrl.hxx
new file mode 100644
index 00000000..803a2361
--- /dev/null
+++ b/src/PIPELINE/VISU_ScalarBarCtrl.hxx
@@ -0,0 +1,96 @@
+//  VISU OBJECT : interactive object for VISU entities implementation
+//
+//  Copyright (C) 2003  OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
+//  CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS 
+// 
+//  This library is free software; you can redistribute it and/or 
+//  modify it under the terms of the GNU Lesser General Public 
+//  License as published by the Free Software Foundation; either 
+//  version 2.1 of the License. 
+// 
+//  This library is distributed in the hope that it will be useful, 
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of 
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU 
+//  Lesser General Public License for more details. 
+// 
+//  You should have received a copy of the GNU Lesser General Public 
+//  License along with this library; if not, write to the Free Software 
+//  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA 
+// 
+//  See http://www.opencascade.org/SALOME/ or email : webmaster.salome@opencascade.org 
+//
+//
+// File:    VISU_ScalarBarCtrl.hxx
+// Author:  Peter KURNEV
+// Module : VISU
+
+#ifndef VISU_ScalarBarCtrl_HeaderFile
+#define VISU_ScalarBarCtrl_HeaderFile
+
+#include <vtkScalarBarActor.h>
+#include <vtkLookupTable.h>
+
+class vtkRenderer;
+class VISU_ScalarBarCtrl :  public vtkObject {
+
+public:
+  vtkTypeMacro(VISU_ScalarBarCtrl, vtkObject);
+  static VISU_ScalarBarCtrl* New();
+  //
+  // Mode
+  void SetMode(const int theNumber);
+  int  GetMode()const;
+  //
+  // Ranges
+  void SetRangeGlobal(const float theX1,
+		      const float theX2);
+  
+  void SetRangeGlobal(const float *theX);
+  
+  const float* GetRangeGlobal()const;
+
+  void SetRangeLocal(const float theX1,
+		     const float theX2);
+
+  void SetRangeLocal(const float *theX);
+  
+  const float* GetRangeLocal()const;
+  //
+  //Orientation
+  void SetOrientationToHorizontal() {
+    SetOrientation(0);
+  }
+  void SetOrientationToVertical() {
+     SetOrientation(1);
+  }
+  
+  void SetOrientation(const int theOrientation);
+  
+  int GetOrientation()const;
+  //
+  vtkScalarBarActor* GetScalarBarActor(const int theIndex);
+  vtkLookupTable* GetLookupTable(const int theIndex);
+  //
+  // Renderer
+  void AddToRender(vtkRenderer* theRenderer); 
+  void RemoveFromRender(vtkRenderer* theRenderer);
+  //
+protected:
+  VISU_ScalarBarCtrl();
+  virtual ~VISU_ScalarBarCtrl();
+  
+  int PrepareData();
+  
+protected:
+  int   myMode;
+  int   myScalarBarNumber;
+  int   myScalarBarNumberMax;
+  float myDistance, myX0, myY0, myL, myB;
+  float myRangeLocal[2];
+  float myRangeGlobal[2];
+  //
+  vtkScalarBarActor *mySBA[2];
+  vtkLookupTable *myXLT[2]; 
+};
+
+#endif