GDAL-VECTOR-SIMPLIFY(1) GDAL GDAL-VECTOR-SIMPLIFY(1) (NAME) gdal-vector-simplify - 3.12. (SYNOPSIS) : gdal vector simplify [OPTIONS] . : -i, --input [] [ pipeline ] -o, --output [] [ pipeline ] --tolerance . [] : -h, --help --json-usage JSON --config = [ ] -q, --quiet ( ) [ pipeline ] : -l, --layer, --input-layer () [ ] [ pipeline ] -f, --of, --format, --output-format ( "GDALG" ) [ pipeline ] --co, --creation-option = [ ] [ pipeline ] --lco, --layer-creation-option = [ ] [ pipeline ] --overwrite [ pipeline ] --update [ pipeline ] --overwrite-layer [ pipeline ] --append [ pipeline ] --upsert --output-layer [ pipeline ] --skip-errors [ pipeline ] --active-layer ( ) --active-geometry ( ) : --if, --input-format [ ] [ pipeline ] --oo, --open-option = [ ] [ pipeline ] --output-oo, --output-open-option = [ ] [ pipeline ] --upsert / ( 'append' ) [ pipeline ] --append (DESCRIPTION) gdal vector simplify . Douglas-Peucker . OGRGeometry::SimplifyPreserveTopology() . . gdal vector simplify-coverage . gdal vector pipeline . [] () () gdal vector simplify..UNINDENT : GDAL GEOS . JSON GDALG . GDALG: GDAL Streamed Algorithm (on-the-fly) / . (PROGRAM-SPECIFIC OPTIONS) --tolerance OGRGeometry::SimplifyPreserveTopology() . . (STANDARD OPTIONS) --active-geometry . . . . --active-layer . --active-layer . . . . --append () . . --co, --creation-option = . GeoPackage . . . --formats . Vector drivers . . --if, --input-format / () . . . . . . --input-layer . . --active-layer . --lco, --layer-creation-option = . GeoPackage . . . --formats . Vector drivers . . --oo, --open-option = ( ). . -f, --of, --format, --output-format . : gdal --formats | grep vector | grep rw | sort --output-layer . . --output-open-option, --output-oo = 3.12 . ( ). . --overwrite . gdal . --overwrite-layer . --skip-errors 3.12 . () . . --update (update) . --upsert 3.12 . --append OGRLayer::CreateFeature() OGRLayer::UpsertFeature() . : GPKG -- GeoPackage vector Elasticsearch: Geographically Encoded Objects for Elasticsearch MongoDBv3 ( upsert GDAL_DCAP_UPSERT ). upsert FID ( FID ) . FID . GPKG upsert FID ( --unset-fid gdal vector edit FID ) UNIQUE . 0 ( ). (EXAMPLES) : ( CRS ) $ gdal vector simplify --tolerance=1000 in.gpkg out.gpkg --overwrite (AUTHORS) Even Rouault (COPYRIGHT) 1998-2026 August 18, 2026 GDAL-VECTOR-SIMPLIFY(1)