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/*=========================================================================
Program: Visualization Toolkit
Module: vtkAbstractPicker.cxx
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
#include "vtkAbstractPicker.h"
#include "vtkObjectFactory.h"
#include "vtkRenderer.h"
// Construct object with initial tolerance of 1/40th of window. There are no
// pick methods and picking is performed from the renderer's actors.
vtkAbstractPicker::vtkAbstractPicker()
{
this->Renderer = NULL;
this->SelectionPoint[0] = 0.0;
this->SelectionPoint[1] = 0.0;
this->SelectionPoint[2] = 0.0;
this->PickPosition[0] = 0.0;
this->PickPosition[1] = 0.0;
this->PickPosition[2] = 0.0;
this->PickFromList = 0;
this->PickList = vtkPropCollection::New();
}
vtkAbstractPicker::~vtkAbstractPicker()
{
this->PickList->Delete();
}
// Initialize the picking process.
void vtkAbstractPicker::Initialize()
{
this->Renderer = NULL;
this->SelectionPoint[0] = 0.0;
this->SelectionPoint[1] = 0.0;
this->SelectionPoint[2] = 0.0;
this->PickPosition[0] = 0.0;
this->PickPosition[1] = 0.0;
this->PickPosition[2] = 0.0;
}
// Initialize list of actors in pick list.
void vtkAbstractPicker::InitializePickList()
{
this->Modified();
this->PickList->RemoveAllItems();
}
// Add an actor to the pick list.
void vtkAbstractPicker::AddPickList(vtkProp *a)
{
this->Modified();
this->PickList->AddItem(a);
}
// Delete an actor from the pick list.
void vtkAbstractPicker::DeletePickList(vtkProp *a)
{
this->Modified();
this->PickList->RemoveItem(a);
}
void vtkAbstractPicker::PrintSelf(ostream& os, vtkIndent indent)
{
this->Superclass::PrintSelf(os,indent);
if ( this->PickFromList )
{
os << indent << "Picking from list\n";
}
else
{
os << indent << "Picking from renderer's prop list\n";
}
os << indent << "Renderer: " << this->Renderer << "\n";
os << indent << "Selection Point: (" << this->SelectionPoint[0] << ","
<< this->SelectionPoint[1] << ","
<< this->SelectionPoint[2] << ")\n";
os << indent << "Pick Position: (" << this->PickPosition[0] << ","
<< this->PickPosition[1] << ","
<< this->PickPosition[2] << ")\n";
}
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