Set the VLR offsets to 0 if there are no offsets.

PDAL · Feb 9, 2021 · 60428ad · 60428ad
1 parent e72c662
commit 60428ad
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/io/LasWriter.cpp b/io/LasWriter.cpp
@@ -343,7 +343,7 @@ void LasWriter::prepOutput(std::ostream *outStream, const SpatialReference& srs)
     OLeStream out(m_ostream);
     out << m_lasHeader;
 
-    m_lasHeader.setVlrOffset((uint32_t)m_ostream->tellp());
+    m_lasHeader.setVlrOffset(m_vlrs.size() ? (uint32_t)m_ostream->tellp() : 0);
 
     for (auto vi = m_vlrs.begin(); vi != m_vlrs.end(); ++vi)
     {
@@ -1169,7 +1169,7 @@ void LasWriter::finishOutput()
     OLeStream out(m_ostream);
 
     // addVlr prevents any eVlrs from being added before version 1.4.
-    m_lasHeader.setEVlrOffset((uint32_t)m_ostream->tellp());
+    m_lasHeader.setEVlrOffset(m_eVlrs.size() ? (uint32_t)m_ostream->tellp() : 0);
     for (auto vi = m_eVlrs.begin(); vi != m_eVlrs.end(); ++vi)
     {
         ExtLasVLR evlr = *vi;