[pdal-commits] [PDAL/PDAL] b4bda6: Protect GDALWriter from zero-point pipelines (#182...

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/PDAL/PDAL
  Commit: b4bda6cd8c5b92743ba251f44c5c8f3630ec2b45
      https://github.com/PDAL/PDAL/commit/b4bda6cd8c5b92743ba251f44c5c8f3630ec2b45
  Author: Pete Gadomski <pete.gadomski at gmail.com>
  Date:   2018-03-03 (Sat, 03 Mar 2018)

  Changed paths:
    M io/GDALWriter.cpp
    M test/unit/io/GDALWriterTest.cpp

  Log Message:
  -----------
  Protect GDALWriter from zero-point pipelines (#1825)

The GDALWriter throws a segfault due to an uninitialized `m_grid` member
variable when trying to execute some zero-point pipelines, e.g.:

```bash
pdal translate \
    -i test/data/las/no-points.las \
    -o /tmp/out.tif \
    -f range --filters.range.limits="Classification[2:2]" \
    --writers.gdal.resolution=1
```

I *think* this is due to `GDALWriter::writeView` never being called, so
the grid is never initialized.

Includes a test case.