3D点云之PCL学习之路(一)

由于种种原因，又要进行3D点云的相关开发任务。对比了PCL和Open3D，针对应用的具体环境，最后还是决定基于PCL进行开发。如果觉得有所帮助，欢迎各位转发收藏~

首先进行开发环境的搭建(如果对于环境搭建配置已经非常熟练，建议查看下一章节)。

软件环境:Win10，MSVC2019，QT6.4.0，PCL1.12.1。

一.PCL安装与配置

应用2019可以使用PCL-1.12.1-AllInOne-msvc2019-win64.exe.这样可方便3rdParty的使用。PCL1.12.1下载：https://github.com/PointCloudLibrary/pcl/releases.安装过程直接进行下一步，进行即可。不建议安装到program files，也不要安装在含有中文路径下，这样后期使用QT的时候会比较舒适。安装完值后查看3rdPartyOpenNI2，看一下这个有没有安装上，没安装上直接运行.exe就可以了，建议安装到3rdPartyOpenNI2，后期使用起来也比较舒适。（注，有的时候会生成找不到 OpenNI2.dll 的错误，可以直接把这个复制到生成的工程目录.exe下即可。）

1.系统环境的配置：

 点击path，编辑环境变量

 一切妥当后，注销（重启）一下电脑，使得环境变量生效。

2.工程环境的配置

利用msvc2019新建工程，选择项目->(项目名称)属性

修改包含目录和库目录的内容

 包含目录：

C:3DAppPCL1.12.1includepcl-1.12
C:3DAppPCL1.12.13rdPartyBoostincludeboost-1_78
C:3DAppPCL1.12.13rdPartyEigeneigen3
C:3DAppPCL1.12.13rdPartyFLANNinclude
C:3DAppPCL1.12.13rdPartyOpenNI2Include
C:3DAppPCL1.12.13rdPartyQhullinclude
C:3DAppPCL1.12.13rdPartyVTKincludevtk-9.1

库目录：

C:3DAppPCL1.12.1lib
C:3DAppPCL1.12.13rdPartyBoostlib
C:3DAppPCL1.12.13rdPartyFLANNlib
C:3DAppPCL1.12.13rdPartyOpenNI2Lib
C:3DAppPCL1.12.13rdPartyQhulllib
C:3DAppPCL1.12.13rdPartyVTKlib

 再选择连接器->库目录->附加依赖项,添加如下内容（debug）

pcl_commond.lib
pcl_featuresd.lib
pcl_filtersd.lib
pcl_iod.lib
pcl_io_plyd.lib
pcl_kdtreed.lib
pcl_keypointsd.lib
pcl_mld.lib
pcl_octreed.lib
pcl_outofcored.lib
pcl_peopled.lib
pcl_recognitiond.lib
pcl_registrationd.lib
pcl_sample_consensusd.lib
pcl_searchd.lib
pcl_segmentationd.lib
pcl_stereod.lib
pcl_surfaced.lib
pcl_trackingd.lib
pcl_visualizationd.lib
libboost_atomic-vc142-mt-gd-x64-1_78.lib
libboost_bzip2-vc142-mt-gd-x64-1_78.lib
libboost_chrono-vc142-mt-gd-x64-1_78.lib
libboost_container-vc142-mt-gd-x64-1_78.lib
libboost_context-vc142-mt-gd-x64-1_78.lib
libboost_contract-vc142-mt-gd-x64-1_78.lib
libboost_coroutine-vc142-mt-gd-x64-1_78.lib
libboost_date_time-vc142-mt-gd-x64-1_78.lib
libboost_exception-vc142-mt-gd-x64-1_78.lib
libboost_filesystem-vc142-mt-gd-x64-1_78.lib
libboost_graph-vc142-mt-gd-x64-1_78.lib
libboost_graph_parallel-vc142-mt-gd-x64-1_78.lib
libboost_iostreams-vc142-mt-gd-x64-1_78.lib
libboost_json-vc142-mt-gd-x64-1_78.lib
libboost_locale-vc142-mt-gd-x64-1_78.lib
libboost_log-vc142-mt-gd-x64-1_78.lib
libboost_log_setup-vc142-mt-gd-x64-1_78.lib
libboost_math_c99-vc142-mt-gd-x64-1_78.lib
libboost_math_c99f-vc142-mt-gd-x64-1_78.lib
libboost_math_c99l-vc142-mt-gd-x64-1_78.lib
libboost_math_tr1-vc142-mt-gd-x64-1_78.lib
libboost_math_tr1f-vc142-mt-gd-x64-1_78.lib
libboost_math_tr1l-vc142-mt-gd-x64-1_78.lib
libboost_mpi-vc142-mt-gd-x64-1_78.lib
libboost_nowide-vc142-mt-gd-x64-1_78.lib
libboost_numpy38-vc142-mt-gd-x64-1_78.lib
libboost_prg_exec_monitor-vc142-mt-gd-x64-1_78.lib
libboost_program_options-vc142-mt-gd-x64-1_78.lib
libboost_python38-vc142-mt-gd-x64-1_78.lib
libboost_random-vc142-mt-gd-x64-1_78.lib
libboost_regex-vc142-mt-gd-x64-1_78.lib
libboost_serialization-vc142-mt-gd-x64-1_78.lib
libboost_system-vc142-mt-gd-x64-1_78.lib
libboost_test_exec_monitor-vc142-mt-gd-x64-1_78.lib
libboost_thread-vc142-mt-gd-x64-1_78.lib
libboost_timer-vc142-mt-gd-x64-1_78.lib
libboost_type_erasure-vc142-mt-gd-x64-1_78.lib
libboost_unit_test_framework-vc142-mt-gd-x64-1_78.lib
libboost_wave-vc142-mt-gd-x64-1_78.lib
libboost_wserialization-vc142-mt-gd-x64-1_78.lib
libboost_zlib-vc142-mt-gd-x64-1_78.lib
flann-gd.lib
flann_cpp-gd.lib
flann_cpp_s-gd.lib
flann_s-gd.lib
OpenNI2.lib
qhullcpp_d.lib
qhullstatic_d.lib
qhullstatic_rd.lib
qhull_rd.lib
vtkcgns-9.1d.lib
vtkChartsCore-9.1d.lib
vtkCommonColor-9.1d.lib
vtkCommonComputationalGeometry-9.1d.lib
vtkCommonCore-9.1d.lib
vtkCommonDataModel-9.1d.lib
vtkCommonExecutionModel-9.1d.lib
vtkCommonMath-9.1d.lib
vtkCommonMisc-9.1d.lib
vtkCommonSystem-9.1d.lib
vtkCommonTransforms-9.1d.lib
vtkDICOMParser-9.1d.lib
vtkDomainsChemistry-9.1d.lib
vtkDomainsChemistryOpenGL2-9.1d.lib
vtkdoubleconversion-9.1d.lib
vtkexodusII-9.1d.lib
vtkexpat-9.1d.lib
vtkFiltersAMR-9.1d.lib
vtkFiltersCore-9.1d.lib
vtkFiltersExtraction-9.1d.lib
vtkFiltersFlowPaths-9.1d.lib
vtkFiltersGeneral-9.1d.lib
vtkFiltersGeneric-9.1d.lib
vtkFiltersGeometry-9.1d.lib
vtkFiltersHybrid-9.1d.lib
vtkFiltersHyperTree-9.1d.lib
vtkFiltersImaging-9.1d.lib
vtkFiltersModeling-9.1d.lib
vtkFiltersParallel-9.1d.lib
vtkFiltersParallelImaging-9.1d.lib
vtkFiltersPoints-9.1d.lib
vtkFiltersProgrammable-9.1d.lib
vtkFiltersSelection-9.1d.lib
vtkFiltersSMP-9.1d.lib
vtkFiltersSources-9.1d.lib
vtkFiltersStatistics-9.1d.lib
vtkFiltersTexture-9.1d.lib
vtkFiltersTopology-9.1d.lib
vtkFiltersVerdict-9.1d.lib
vtkfmt-9.1d.lib
vtkfreetype-9.1d.lib
vtkGeovisCore-9.1d.lib
vtkgl2ps-9.1d.lib
vtkglew-9.1d.lib
vtkhdf5-9.1d.lib
vtkhdf5_hl-9.1d.lib
vtkImagingColor-9.1d.lib
vtkImagingCore-9.1d.lib
vtkImagingFourier-9.1d.lib
vtkImagingGeneral-9.1d.lib
vtkImagingHybrid-9.1d.lib
vtkImagingMath-9.1d.lib
vtkImagingMorphological-9.1d.lib
vtkImagingSources-9.1d.lib
vtkImagingStatistics-9.1d.lib
vtkImagingStencil-9.1d.lib
vtkInfovisCore-9.1d.lib
vtkInfovisLayout-9.1d.lib
vtkInteractionImage-9.1d.lib
vtkInteractionStyle-9.1d.lib
vtkInteractionWidgets-9.1d.lib
vtkIOAMR-9.1d.lib
vtkIOAsynchronous-9.1d.lib
vtkIOCGNSReader-9.1d.lib
vtkIOChemistry-9.1d.lib
vtkIOCityGML-9.1d.lib
vtkIOCONVERGECFD-9.1d.lib
vtkIOCore-9.1d.lib
vtkIOEnSight-9.1d.lib
vtkIOExodus-9.1d.lib
vtkIOExport-9.1d.lib
vtkIOExportGL2PS-9.1d.lib
vtkIOExportPDF-9.1d.lib
vtkIOGeometry-9.1d.lib
vtkIOHDF-9.1d.lib
vtkIOImage-9.1d.lib
vtkIOImport-9.1d.lib
vtkIOInfovis-9.1d.lib
vtkIOIOSS-9.1d.lib
vtkIOLegacy-9.1d.lib
vtkIOLSDyna-9.1d.lib
vtkIOMINC-9.1d.lib
vtkIOMotionFX-9.1d.lib
vtkIOMovie-9.1d.lib
vtkIONetCDF-9.1d.lib
vtkIOOggTheora-9.1d.lib
vtkIOParallel-9.1d.lib
vtkIOParallelXML-9.1d.lib
vtkIOPLY-9.1d.lib
vtkIOSegY-9.1d.lib
vtkIOSQL-9.1d.lib
vtkioss-9.1d.lib
vtkIOTecplotTable-9.1d.lib
vtkIOVeraOut-9.1d.lib
vtkIOVideo-9.1d.lib
vtkIOXML-9.1d.lib
vtkIOXMLParser-9.1d.lib
vtkjpeg-9.1d.lib
vtkjsoncpp-9.1d.lib
vtkkissfft-9.1d.lib
vtklibharu-9.1d.lib
vtklibproj-9.1d.lib
vtklibxml2-9.1d.lib
vtkloguru-9.1d.lib
vtklz4-9.1d.lib
vtklzma-9.1d.lib
vtkmetaio-9.1d.lib
vtknetcdf-9.1d.lib
vtkogg-9.1d.lib
vtkParallelCore-9.1d.lib
vtkParallelDIY-9.1d.lib
vtkpng-9.1d.lib
vtkpugixml-9.1d.lib
vtkRenderingAnnotation-9.1d.lib
vtkRenderingContext2D-9.1d.lib
vtkRenderingContextOpenGL2-9.1d.lib
vtkRenderingCore-9.1d.lib
vtkRenderingFreeType-9.1d.lib
vtkRenderingGL2PSOpenGL2-9.1d.lib
vtkRenderingImage-9.1d.lib
vtkRenderingLabel-9.1d.lib
vtkRenderingLOD-9.1d.lib
vtkRenderingOpenGL2-9.1d.lib
vtkRenderingSceneGraph-9.1d.lib
vtkRenderingUI-9.1d.lib
vtkRenderingVolume-9.1d.lib
vtkRenderingVolumeOpenGL2-9.1d.lib
vtkRenderingVtkJS-9.1d.lib
vtksqlite-9.1d.lib
vtksys-9.1d.lib
vtkTestingRendering-9.1d.lib
vtktheora-9.1d.lib
vtktiff-9.1d.lib
vtkverdict-9.1d.lib
vtkViewsContext2D-9.1d.lib
vtkViewsCore-9.1d.lib
vtkViewsInfovis-9.1d.lib
vtkWrappingTools-9.1d.lib
vtkzlib-9.1d.lib

release模式基本一样(就是lib去掉了d)

配置好以上内容，就可以进行一个简单的PCL的载入与展示了。

#define _SCL_SECURE_NO_WARNINGS
#ifndef _CRT_SECURE_NO_WARNINGS
#include  
#include   
#include  
#include   
#include 
#include 
#include 
#include 
#include 
#include 
#include  
#include 
#include 
#include 
#include "vtkAutoInit.h"
#include 


int main()
{
    vtkOutputWindow::GlobalWarningDisplayOff();    //vtkOutputWindow::SetGlobalWarningDisplay(0); 

    pcl::PointCloud::Ptr source_cloud(new pcl::PointCloud());
    if (pcl::io::loadPLYFile("c:\fragment.ply", *source_cloud) == -1)
    {
        PCL_ERROR("Couldn't read fragment.plyn");
        return -1;
    }

    pcl::visualization::PCLVisualizer viewer("Matrix transformation example");
    pcl::visualization::PointCloudColorHandlerCustom source_cloud_color_handler(source_cloud, 255, 255, 255);
    viewer.addPointCloud(source_cloud, source_cloud_color_handler, "original_cloud");


    viewer.addCoordinateSystem(1.0, "cloud", 0);
    viewer.setBackgroundColor(0.05, 0.05, 0.05, 0); // Setting background to a dark grey
    viewer.setPointCloudRenderingProperties(pcl::visualization::PCL_VISUALIZER_POINT_SIZE, 2, "original_cloud");

    viewer.resetCamera();

    while (!viewer.wasStopped()) 
   { 
        viewer.spinOnce();
    }
    return EXIT_SUCCESS;
}

不出什么意外就可以看到结果了.

二.vtk9.1的编译

其实如果不用qt，pcl自带的3rdParty内的vtk是已经够用了。如果需要结合qt使用，就需要进行重新编译了。

 Download | VTK

将下载后的原文件解压到VTK-9.1.0-src

 点击Configure观察结果。
其中CMAKE_INSTALL_PREFIX是VTK 库要安装的位置，VTK 编译后生成的库文件所在位置，将位置修改为VTK-9.1.0-install-debug， 在后续的生成中，先生成Release版本的VTK库，生成后将生成的文件移动到VTK-9.1.0-install-release，然后生成Debug版本的VTK库，此时生成的文件就存放于VTK-9.1.0-install-debug文件夹中。接下来在搜框内搜索QT，vtk项的qt都选择want，设置qt版本为6. 点击Configure进行相关内容的设置，其中

Qt6QmlCompilerPlusPrivate_dir这项始终无法设置，不过对后期应用影响不大。要是有哪位知道如何设置的，可以私信。我修改一下这个内容。先行谢过。 再点击Configure，如果没有错误，就可以Generate。Generate done以后，Open Project选择2019进行打开。选择 生成->批生成，在出现的界面中选择ALL_BUILD的Release版本，点击生成后等待生成完成，再选择 生成->批生成，去掉ALL_BUILD的Release，选择INSTALL的Release版,再点击生成后等待生成完成。这样Release已经编译好了，存放在debug文件夹下，需要手动移动到release文件夹下。同样再选择 生成->批生成，取消INSTALL的Release版，并同时勾选ALL_BUILD的debug和INSTALL的debug再点击生成后等待生成完成。到此编译的内容基本完毕。这时，备份PCL1.12.13rdPartyVTK内容后可以将VTK-9.1.0-install-debug和VTK-9.1.0-install-release内容同时复制到PCL1.12.13rdPartyVTK下。用以替换原有的vtk。