findstems RANSAC cylinder fits error

[qmxp55]

When running findstems after successfully running getdtmslice with a custom point cloud data set, I got this error:

RANSAC cylinder fits: libc++abi.dylib: terminating with uncaught exception of type pcl::IOException: : [pcl::PCDWriter::writeBinary] Input point cloud has no data!

Before crashing, findstems generate the <filename>.intermediate.slice.clusters.pcd and <filename>.intermediate.slice.clusters.regions.pcd files, and they look fine, it does find the stems but does not generate the corresponding <filename>..cluster.*.pcd files needed for the next step.

[tpet93]

EDIT:
on re-reading it sounds more like it is failing to find any cylinders from the .intermediate.slice.clusters.regions.pcd cloud.
if you are not seeing a ".intermediate.slice.clusters.regions.cylinders.pcd" file. the issue is occurring between line 73 and 94.
one potential reason is the the coord file you are giving has bad coordinates.

try un-commenting line 77 and add further print statements to narrow it down further

---

This happens when one of the extracted cyl point-clouds has zero points. there are a few rare instances where it can happen.
you could work around it by wrapping the writer.write function inside an if statement.

if (stems[m]->points.size() > 0)
{
  ss.str("");
  ss << id[0] << ".cluster." << m << ".pcd";
  writer.write(ss.str(),*stems[m],true);

}