mitkPlanarArrow.cpp
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00001 /*========================================================================= 00002 00003 Program: Medical Imaging & Interaction Toolkit 00004 Language: C++ 00005 Date: $Date: 2010-05-13 17:32:17 +0200 (Do, 13 Mai 2010) $ 00006 Version: $Revision: 18029 $ 00007 00008 Copyright (c) German Cancer Research Center, Division of Medical and 00009 Biological Informatics. All rights reserved. 00010 See MITKCopyright.txt or https://www.mitk.org/copyright.html for details. 00011 00012 This software is distributed WITHOUT ANY WARRANTY; without even 00013 the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR 00014 PURPOSE. See the above copyright notices for more information. 00015 00016 =========================================================================*/ 00017 00018 00019 #include "mitkPlanarArrow.h" 00020 #include "mitkGeometry2D.h" 00021 00022 00023 mitk::PlanarArrow::PlanarArrow() 00024 : FEATURE_ID_LENGTH( this->AddFeature( "Length", "mm" ) ) 00025 { 00026 // Directed arrow has two control points 00027 this->ResetNumberOfControlPoints( 2 ); 00028 00029 m_PolyLines->InsertElement( 0, VertexContainerType::New()); 00030 00031 // Create helper polyline object (for drawing the orthogonal orientation line) 00032 m_HelperPolyLines->InsertElement( 0, VertexContainerType::New()); 00033 m_HelperPolyLines->InsertElement( 1, VertexContainerType::New()); 00034 m_HelperPolyLines->ElementAt( 0 )->Reserve( 2 ); 00035 m_HelperPolyLines->ElementAt( 1 )->Reserve( 2 ); 00036 m_HelperPolyLinesToBePainted->InsertElement( 0, false ); 00037 m_HelperPolyLinesToBePainted->InsertElement( 1, false ); 00038 } 00039 00040 00041 mitk::PlanarArrow::~PlanarArrow() 00042 { 00043 } 00044 00045 00046 //void mitk::PlanarArrow::Initialize() 00047 //{ 00048 // // Default initialization of line control points 00049 // 00050 // mitk::Geometry2D *geometry2D = 00051 // dynamic_cast< mitk::Geometry2D * >( this->GetGeometry( 0 ) ); 00052 // 00053 // if ( geometry2D == NULL ) 00054 // { 00055 // MITK_ERROR << "Missing Geometry2D for PlanarArrow"; 00056 // return; 00057 // } 00058 // 00059 // mitk::ScalarType width = geometry2D->GetBounds()[1]; 00060 // mitk::ScalarType height = geometry2D->GetBounds()[3]; 00061 // 00062 // mitk::Point2D &startPoint = m_ControlPoints->ElementAt( 0 ); 00063 // mitk::Point2D &endPoint = m_ControlPoints->ElementAt( 1 ); 00064 // 00065 // startPoint[0] = width / 2.0; 00066 // startPoint[1] = height / 2.0; 00067 // 00068 // endPoint[0] = startPoint[0] + 20.0; 00069 // endPoint[1] = startPoint[1] + 20.0; 00070 //} 00071 00072 00073 void mitk::PlanarArrow::GeneratePolyLine() 00074 { 00075 // TODO: start line at specified start point... 00076 // Generate poly-line 00077 m_PolyLines->ElementAt( 0 )->Reserve( 2 ); 00078 m_PolyLines->ElementAt( 0 )->ElementAt( 0 ) = m_ControlPoints->ElementAt( 0 ); 00079 m_PolyLines->ElementAt( 0 )->ElementAt( 1 ) = m_ControlPoints->ElementAt( 1 ); 00080 } 00081 00082 void mitk::PlanarArrow::GenerateHelperPolyLine(double mmPerDisplayUnit, unsigned int displayHeight) 00083 { 00084 // Generate helper polyline (orientation line orthogonal to first line) 00085 // if the third control point is currently being set 00086 if ( this->GetNumberOfControlPoints() != 2 ) 00087 { 00088 m_HelperPolyLinesToBePainted->SetElement( 0, false ); 00089 m_HelperPolyLinesToBePainted->SetElement( 1, false ); 00090 00091 return; 00092 } 00093 00094 m_HelperPolyLinesToBePainted->SetElement( 0, true ); 00095 m_HelperPolyLinesToBePainted->SetElement( 1, true ); 00096 00097 //Fixed size depending on screen size for the angle 00098 double nonScalingLength = displayHeight * mmPerDisplayUnit * 0.015; 00099 00100 // Calculate arrow peak 00101 const Point2D& p1 = m_ControlPoints->ElementAt( 0 ); 00102 const Point2D& p2 = m_ControlPoints->ElementAt( 1 ); 00103 Vector2D n1 = p1 - p2; 00104 n1.Normalize(); 00105 00106 double degrees = 100.0; 00107 Vector2D temp; 00108 temp[0] = n1[0] * cos(degrees) - n1[1] * sin(degrees); 00109 temp[1] = n1[0] * sin(degrees) + n1[1] * cos(degrees); 00110 Vector2D temp2; 00111 temp2[0] = n1[0] * cos(-degrees) - n1[1] * sin(-degrees); 00112 temp2[1] = n1[0] * sin(-degrees) + n1[1] * cos(-degrees); 00113 00114 m_HelperPolyLines->ElementAt( 0 )->ElementAt( 0 ) = p1; 00115 m_HelperPolyLines->ElementAt( 0 )->ElementAt( 1 ) = p1 - temp * nonScalingLength; 00116 m_HelperPolyLines->ElementAt( 1 )->ElementAt( 0 ) = p1; 00117 m_HelperPolyLines->ElementAt( 1 )->ElementAt( 1 ) = p1 - temp2 * nonScalingLength; 00118 00119 } 00120 00121 00122 void mitk::PlanarArrow::EvaluateFeaturesInternal() 00123 { 00124 // Calculate line length 00125 const Point3D &p0 = this->GetWorldControlPoint( 0 ); 00126 const Point3D &p1 = this->GetWorldControlPoint( 1 ); 00127 double length = p0.EuclideanDistanceTo( p1 ); 00128 00129 this->SetQuantity( FEATURE_ID_LENGTH, length ); 00130 } 00131 00132 00133 void mitk::PlanarArrow::PrintSelf( std::ostream& os, itk::Indent indent) const 00134 { 00135 Superclass::PrintSelf( os, indent ); 00136 }
