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/*=========================================================================
*
* Copyright Insight Software Consortium
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0.txt
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*=========================================================================*/
#include "itkPolygonGroupSpatialObject.h"
#include <iostream>
#include "itkMath.h"
static float testPoints[11][2] =
{
{1,1},{1,2},{1.25,2},{1.25,1.25},{1.75,1.25},
{1.75,1.5},{1.5,1.5},{1.5,2},{2,2},{2,1},{1,1}
};
typedef itk::PolygonGroupSpatialObject<3> PolygonGroup3DType;
typedef PolygonGroup3DType::Pointer PolygonGroup3DPointer;
int
buildPolygonGroup(PolygonGroup3DPointer &PolygonGroup)
{
try
{
for(float z = 0.0; z <= 10.0; z += 1.0)
{
itk::PolygonSpatialObject<3>::Pointer strand
= itk::PolygonSpatialObject<3>::New();
strand->Print(std::cout);
if(!PolygonGroup->AddStrand(strand))
{
std::cerr << "Error adding point" << std::endl;
return -1;
}
strand->SetThickness(1.0);
//
// add all points to this strand.
for(int i = 0; i < 11; i++)
{
double pos[3];
pos[0] = testPoints[i][0];
pos[1] = testPoints[i][1];
pos[2] = z;
itk::PolygonSpatialObject<3>::PointType curpoint(pos);
if(!strand->AddPoint(curpoint))
{
std::cerr << "Error adding point" << std::endl;
return -1;
}
}
//
// check measurements for consistency.
double area, volume, perimeter;
area = strand->MeasureArea();
volume = strand->MeasureVolume();
perimeter = strand->MeasurePerimeter();
// since a slice is 1 unit thick, volume should equal area
if(itk::Math::NotAlmostEquals(area, volume))
{
std::cerr << "Polygon: area(" << area << ") != volume("
<< volume << ")" << std::endl;
return -1;
}
if(z == 0.0) // just do unit testing for one strand
{
//
// try deleting this strand
PolygonGroup->DeleteStrand(strand);
//
// put it back.
PolygonGroup->AddStrand(strand);
//
// try replacing it.
PolygonGroup->ReplaceStrand(strand,strand);
if(!strand->IsClosed())
{
std::cerr << "Strand should be closed" << std::endl;
return -1;
}
std::cerr << "Area = " << area
<< " Volume = " << volume
<< " Perimeter = " << perimeter
<< std::endl;
double pos[3];
pos[0] = testPoints[5][0];
pos[1] = testPoints[5][1];
pos[2] = z;
itk::PolygonSpatialObject<3>::PointType testpoint(pos);
if(!strand->DeletePoint(testpoint))
{
std::cerr << "Polygon: Delete Point failed" << std::endl;
}
//
// put the same point back
double p2[3];
p2[0] = testPoints[4][0];
p2[1] = testPoints[4][1];
p2[2] = z;
itk::PolygonSpatialObject<3>::PointType insertafter(p2);
if(!strand->InsertPoint(insertafter,testpoint))
{
std::cerr << "Polygon: Insert Point failed" << std::endl;
}
//
// try replacing the point.
if(!strand->ReplacePoint(insertafter,insertafter))
{
std::cerr << "Polygon: Replace Point failed" << std::endl;
}
//
// try deleting a segment
double p3[3];
p3[0] = testPoints[10][0];
p3[1] = testPoints[10][1];
p3[2] = z;
itk::PolygonSpatialObject<3>::PointType endpt(p3);
if(!strand->RemoveSegment(testpoint,endpt))
{
std::cerr << "Polygon: RemoveSegment failed" << std::endl;
}
if(strand->NumberOfPoints() != 5)
{
std::cerr << "Polygon: should have 5 points, "
<< strand->NumberOfPoints() << " returned." << std::endl;
}
//
// put the same points back.
for(int i = 5; i < 11; i++)
{
pos[0] = testPoints[i][0];
pos[1] = testPoints[i][1];
pos[2] = z;
itk::PolygonSpatialObject<3>::PointType curpoint(pos);
if(!strand->AddPoint(curpoint))
{
std::cerr << "Error adding point" << std::endl;
return -1;
}
}
if(strand->NumberOfPoints() != 11)
{
std::cerr << "Polygon: should have 11 points, "
<< strand->NumberOfPoints() << " returned." << std::endl;
return -1;
}
double area2 = strand->MeasureArea();
double perimeter2 = strand->MeasurePerimeter();
if(itk::Math::NotExactlyEquals(area, area2))
{
std::cerr << "Area shouldn't have changed; old = "
<< area << " new = " << area2 << std::endl;
return -1;
}
if(itk::Math::NotExactlyEquals(perimeter, perimeter2))
{
std::cerr << "Perimeter shouldn't have changed; old = "
<< perimeter << " new = " << perimeter2 << std::endl;
return -1;
}
//
// check IsInside
double insidepos[3];
insidepos[0] = 1.75;
insidepos[1] = 1.75;
insidepos[2] = z;
itk::PolygonSpatialObject<3>::PointType insidepoint(insidepos);
double outsidepos[3];
outsidepos[0] = 1.6;
outsidepos[1] = 1.3;
outsidepos[2] = z;
itk::PolygonSpatialObject<3>::PointType outsidepoint(outsidepos);
if(!strand->IsInside(insidepoint))
{
std::cerr << " 1.75, 1.75, 0 should be inside strand" << std::endl;
return -1;
}
if(strand->IsInside(outsidepoint))
{
std::cerr << " 1.6, 1.3, 0 should be outside strand" << std::endl;
return -1;
}
}
}
}
catch(itk::ExceptionObject &)
{
std::cerr << "Error creating PolygonGroup" << std::endl;
return -1;
}
return 0;
}
int itkPolygonGroupSpatialObjectTest(int, char *[])
{
PolygonGroup3DPointer PolygonGroup = PolygonGroup3DType::New();
if(PolygonGroup->NumberOfStrands() != 0)
{
std::cerr << "PolygonGroup->NumberOfStrands() returns non zero fo empty PolygonGroup"
<< std::endl;
return 1;
}
if(buildPolygonGroup(PolygonGroup) != 0)
{
return 1;
}
if(PolygonGroup->NumberOfStrands() != 11)
{
std::cerr << "PolygonGroup->NumberOfStrands() returns " << PolygonGroup->NumberOfStrands()
<< " should return 11"
<< std::endl;
return 1;
}
if(!PolygonGroup->IsClosed())
{
std::cerr << "PolygonGroup->IsClosed() returned false, should be true"
<< std::endl;
return 1;
}
double vol = PolygonGroup->Volume();
std::cerr << "PolygonGroup Volume = " << vol << std::endl;
double insidepos[3];
insidepos[0] = 1.75;
insidepos[1] = 1.75;
insidepos[2] = 5.0;
itk::PolygonSpatialObject<3>::PointType insidepoint(insidepos);
if(!PolygonGroup->IsInside(insidepoint))
{
std::cerr << "1.75,1.75,5 is inside PolygonGroup, IsInside returns false"
<< std::endl;
}
double outsidepos[3];
outsidepos[0] = 1.6;
outsidepos[1] = 1.3;
outsidepos[2] = 11.5;
itk::PolygonSpatialObject<3>::PointType outsidepoint(outsidepos);
if(PolygonGroup->IsInside(outsidepoint))
{
std::cerr << "1.6,1.3,11.5" << "is not inside PolygonGroup, IsInside returns true"
<< std::endl;
}
return 0;
}
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