[C++知识库]boost::filesystem 由相对路径创建文件

#include <pcl/io/pcd_io.h>
#include <boost/filesystem.hpp>
#include <iostream>
using namespace std;

int main(int argc, char* argv[])
{
	std::string str = "D:/repo/CompoundGrinding/x64/Release/GlobalRubber_defect.pcd";
	pcl::PointCloud<pcl::PointXYZ>::Ptr cloud(new pcl::PointCloud<pcl::PointXYZ>);
	pcl::io::loadPCDFile(str, *cloud);


	//D:\repo\CompoundGrinding\Windows\CompoundGrinding\CompoundGrinding .vcxproj同级目录

	/*创建文件夹*/
	//boost::filesystem::exists、create_directory无法识别相对路径
	const std::string save_directory = "../../../x64/Release/Data";
	boost::filesystem::path directoryPath = boost::filesystem::system_complete(save_directory);

	if (!boost::filesystem::exists(directoryPath))  //推断文件存在性  
	{
		//文件夹不存在;   
		boost::filesystem::create_directory(directoryPath);  //文件夹不存在。创建 
	}

	std::string dirSaveRubber = save_directory + "/" + "GlobalRubber_defect.pcd";
	pcl::io::savePCDFileBinaryCompressed(dirSaveRubber, *cloud);





	/*path转换为string*/

	boost::filesystem::exists、create_directory无法识别相对路径
	//const std::string directory = "../../../x64/Release/Data";
	//boost::filesystem::path directoryPath = boost::filesystem::system_complete(directory);

	也可以不用将path转换为string，pcl::io::savePCDFile可以识别相对路径
	//string save_directory=boost::filesystem::absolute(directoryPath).string();
	//cout << "path:" << save_directory << endl;

	//if (!boost::filesystem::exists(save_directory))  //推断文件存在性  
	//{
	//	//文件夹不存在;   
	//	boost::filesystem::create_directory(save_directory);  //文件夹不存在。创建 
	//}

	//std::string dirSaveRubber = save_directory + "/" + "GlobalRubber_defect.pcd";
	//pcl::io::savePCDFileBinaryCompressed(dirSaveRubber, *cloud);


}


	

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