lastool读取las格式文件的例子

 LASreadOpener lasreadopener;

// lasreadopener.set_file_name(pointfilepath);
// if (!lasreadopener.active())
// {
// return;
// }
// LASreader* lasreader = lasreadopener.open();
// lasreader->inside_rectangle(LeftRect.Minx,LeftRect.Miny,LeftRect.Maxx,LeftRect.Maxy);

// LASwriteOpener laswriteopener;
// laswriteopener.set_file_name(txtpath);
// if(!laswriteopener.active())
// {
// return;
// }
// LASwriter* laswriter = laswriteopener.open(&lasreader->header);

// vector<CvPoint3D32f> groundpoints;
// groundpoints.clear();
// while(lasreader->read_point())
// {
// groundpoints.push_back(cvPoint3D32f(lasreader->point.get_x(),lasreader->point.get_y(),lasreader->point.get_z()));
// laswriter->write_point(&(lasreader->point));
// }
// laswriter->close();
// lasreader->close();