#283

r-lidar · Sep 27, 2019 · 44e1969 · 44e1969
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diff --git a/NEWS.md b/NEWS.md
@@ -14,6 +14,8 @@
 
 6. Tolerance for internal `point_in_triangle()` have been increased to fix double precision error in rasterization of a triangulation. This fixes some rare `NA`s in `pitfree()`, `dsmtin()` and `tin()`.
 
+7. The NAs are now correctly interpreted when writing a GDAL virtual raster [#283](https://github.com/Jean-Romain/lidR/issues/283).
+
 ## lidR v2.1.3 (Release date: 2019-09-10)
 
 #### NEW FEATURES

diff --git a/R/utils_raster.r b/R/utils_raster.r
@@ -115,7 +115,7 @@ rBuildVRT = function(file_list, vrt)
   folder    <- dirname(file_list[1])
   file      <- paste0("/", vrt, ".vrt")
   vrt       <- paste0(folder, file)
-  gdalUtils::gdalbuildvrt(file_list, vrt)
+  gdalUtils::gdalbuildvrt(file_list, vrt, vrtnodata = -Inf)
   file_list <- raster::stack(vrt)
 
   if (dim(file_list)[3] == 1)