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Make extents vlr optional. #110

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Apr 14, 2022
Merged

Make extents vlr optional. #110

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30 changes: 17 additions & 13 deletions cpp/src/io/copc_reader.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -94,22 +94,26 @@ CopcExtents Reader::ReadCopcExtentsVlr(std::map<uint64_t, las::VlrHeader> &vlrs,
{
auto offset = FetchVlr(vlrs, "copc", 10000);
auto extended_offset = FetchVlr(vlrs, "rock_robotic", 10001);
if (offset == 0)
throw std::runtime_error("Reader::ReadCopcExtentsVlr: No COPC Extents VLR found in file.");

in_stream_->seekg(offset + lazperf::vlr_header::Size);
CopcExtents extents(las::CopcExtentsVlr::create(*in_stream_, static_cast<int>(vlrs[offset].data_length)),
static_cast<int8_t>(reader_->header().point_format_id),
static_cast<uint16_t>(eb_vlr.items.size()), extended_offset != 0);
if (offset != 0)
{
in_stream_->seekg(offset + lazperf::vlr_header::Size);
CopcExtents extents(las::CopcExtentsVlr::create(*in_stream_, static_cast<int>(vlrs[offset].data_length)),
static_cast<int8_t>(reader_->header().point_format_id),
static_cast<uint16_t>(eb_vlr.items.size()), extended_offset != 0);

// Load mean/var if they exist
if (extended_offset != 0)
// Load mean/var if they exist
if (extended_offset != 0)
{
in_stream_->seekg(extended_offset + lazperf::vlr_header::Size);
extents.SetExtendedStats(
las::CopcExtentsVlr::create(*in_stream_, static_cast<int>(vlrs[extended_offset].data_length)));
}
return extents;
}
else
{
in_stream_->seekg(extended_offset + lazperf::vlr_header::Size);
extents.SetExtendedStats(
las::CopcExtentsVlr::create(*in_stream_, static_cast<int>(vlrs[extended_offset].data_length)));
return CopcExtents(reader_->header().point_format_id);
}
return extents;
}

las::WktVlr Reader::ReadWktVlr(std::map<uint64_t, las::VlrHeader> &vlrs)
Expand Down