v2.1.4

lidR v2.1.4 (Release date: 2019-10-15)

NEW FEATURES

1. grid_terrain() gains an argument full_raster = FALSE.

2. lasnormalize() gains an argument ... to tune raster::extract() and use, for example, method = "bilinear".

FIXES

1. In lasground() if last_returns = TRUE and the LAS is not properly populated i.e. no last return, the classification was not actually computed. The expected behavior was to use all the points. This is now the case.

2. lasclip() is now able to clip into a LAS objects using SpatialPoints or sf POINT. It previously worked only into LAScatalog objects.

3. lasaddextrabyte_manual() was not actually working because the type was not converted to a numeric value according to the LAS specifications.

4. Fix double precision floating point error in grid_* function in some specific cases. This fix affect also highest() and other raster-based algorithms #273.

5. lasreoffset() now checks for integer overflow and throws an error in case of invalid user request #274.

6. Tolerance for internal point_in_triangle() have been increased to fix double precision error in rasterization of a triangulation. This fixes some rare NAs in pitfree(), dsmtin() and tin().

7. The NAs are now correctly interpreted when writing a GDAL virtual raster #283.

8. Fix lasmergespatial() with 'on disk' rasters #285.

9. Fix pitfree() with a single triangle case #288.

ENHANCEMENTS

1. pitfree() handles more errors and fails more nicely in some specific cases #286.