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BuildLocatorFromKClosestPoints.tar
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BuildLocatorFromKClosestPoints.tar
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BuildLocatorFromKClosestPoints/ 0000755 0000765 0000024 00000000000 13424703035 020103 5 ustar lorensen staff 0000000 0000000 BuildLocatorFromKClosestPoints/CMakeLists.txt 0000644 0000765 0000024 00000001712 13424703035 022644 0 ustar lorensen staff 0000000 0000000
cmake_minimum_required(VERSION 3.3 FATAL_ERROR)
project(BuildLocatorFromKClosestPoints)
find_package(VTK COMPONENTS
vtkCommonCore
vtkCommonDataModel
vtkFiltersSources QUIET)
if (NOT VTK_FOUND)
message("Skipping BuildLocatorFromKClosestPoints: ${VTK_NOT_FOUND_MESSAGE}")
return ()
endif()
message (STATUS "VTK_VERSION: ${VTK_VERSION}")
if (VTK_VERSION VERSION_LESS "8.90.0")
# old system
include(${VTK_USE_FILE})
add_executable(BuildLocatorFromKClosestPoints MACOSX_BUNDLE BuildLocatorFromKClosestPoints.cxx )
target_link_libraries(BuildLocatorFromKClosestPoints PRIVATE ${VTK_LIBRARIES})
else ()
# include all components
add_executable(BuildLocatorFromKClosestPoints MACOSX_BUNDLE BuildLocatorFromKClosestPoints.cxx )
target_link_libraries(BuildLocatorFromKClosestPoints PRIVATE ${VTK_LIBRARIES})
# vtk_module_autoinit is needed
vtk_module_autoinit(
TARGETS BuildLocatorFromKClosestPoints
MODULES ${VTK_LIBRARIES}
)
endif ()
BuildLocatorFromKClosestPoints/BuildLocatorFromKClosestPoints.cxx 0000644 0000765 0000024 00000002321 13424703035 026701 0 ustar lorensen staff 0000000 0000000 #include <vtkSmartPointer.h>
#include <vtkPoints.h>
#include <vtkPointSource.h>
#include <vtkIdList.h>
#include <vtkKdTree.h>
int main(int, char *[])
{
// Create some points
double origin[3] = {0.0, 0.0, 0.0};
double x[3] = {1.0, 0.0, 0.0};
double y[3] = {0.0, 1.0, 0.0};
double z[3] = {0.0, 0.0, 1.0};
vtkSmartPointer<vtkPoints> points =
vtkSmartPointer<vtkPoints>::New();
points->InsertNextPoint(origin);
points->InsertNextPoint(x);
points->InsertNextPoint(y);
points->InsertNextPoint(z);
// Create the tree
vtkSmartPointer<vtkKdTree> pointTree =
vtkSmartPointer<vtkKdTree>::New();
pointTree->BuildLocatorFromPoints(points);
// Find the 2 closest points to (0.5,0,0)
vtkIdType k = 2;
double testPoint[3] = {0.5, 0.0, 0.0};
vtkSmartPointer<vtkIdList> result =
vtkSmartPointer<vtkIdList>::New();
pointTree->FindClosestNPoints(k, testPoint, result);
for(vtkIdType i = 0; i < k; i++)
{
vtkIdType point_ind = result->GetId(i);
double p[3];
points->GetPoint(point_ind, p);
std::cout << "Closest point "
<< i << ": Point " << point_ind << ": ("
<< p[0] << ", " << p[1] << ", " << p[2] << ")" << std::endl;
}
return EXIT_SUCCESS;
}
BuildLocatorFromKClosestPoints/build/ 0000755 0000765 0000024 00000000000 13424703035 021202 5 ustar lorensen staff 0000000 0000000