From 601c2b203920b30f6444b178e337d1736d02c814 Mon Sep 17 00:00:00 2001 From: Daniel Baston Date: Thu, 12 Dec 2024 21:25:01 -0500 Subject: [PATCH] Docs: Clarify behavior of gdalbuildvrt -te when source extends beyond inputs. --- doc/source/programs/gdalbuildvrt.rst | 3 +++ 1 file changed, 3 insertions(+) diff --git a/doc/source/programs/gdalbuildvrt.rst b/doc/source/programs/gdalbuildvrt.rst index 90a980305b7d..95547747de3d 100644 --- a/doc/source/programs/gdalbuildvrt.rst +++ b/doc/source/programs/gdalbuildvrt.rst @@ -109,6 +109,9 @@ changed in later versions. Set georeferenced extents of VRT file. The values must be expressed in georeferenced units. If not specified, the extent of the VRT is the minimum bounding box of the set of source rasters. + Pixels within the extent of the VRT but not covered by a source raster will be read as valid + pixels with a value of zero unless a NODATA value is specified using :option:`-vrtnodata` + or an alpha mask band is added with :option:`-addalpha`. .. option:: -addalpha