GeoTiles

Map - Town index - Tile index

Relevant towns and neighbourhoods

Ubbena (buurtschap)Vries (woonkern)Zeijen (woonkern)Donderen (woonkern)

Tile 12BZ1

Actueel Hoogtebestand Nederland

Point cloud

The aerial photograph closest to the acquisition date of the AHN iteration was overlaid on the point cloud to produce a colored version for visualisation purposes. Furthermore, for each point cloud a spatial index and textual summary, including elevation histogram, are provided. Please note that the images are not from the same flight, and may be years off. Therefore, small alignment errors and differences occur between them.

Zoom in on the map to see tiled versions (25 tiles of 1×1.25 km). Tiled versions typically fit into memory (RAM) are easier to handle and are especially suitable for parallel processing and Machine Learning.

Version Point cloud Spatial index Info License
AHN1 Ground 12bz1.laz 15.1 MiB 12bz1.lax 18 kiB 12bz1.txt 9 kiB Stuurgroep AHN, public domain
Non-ground 12bz1.laz 4.4 MiB 12bz1.lax 75 kiB 12bz1.txt 11 kiB Stuurgroep AHN, public domain
Merged 12BZ1.LAZ 19.5 MiB 12BZ1.LAX 33 kiB 12BZ1.txt 11 kiB Stuurgroep AHN (merged product by GeoTiles)
Colored Available for sub-units only, zoom in to select. Remixed by GeoTiles*
AHN2 Ground g12bz1.laz 333.0 MiB g12bz1.lax 133 kiB g12bz1.txt 6 kiB Stuurgroep AHN, public domain
Non-ground u12bz1.laz 189.3 MiB u12bz1.lax 100 kiB u12bz1.txt 15 kiB Stuurgroep AHN, public domain
Merged 12BZ1.LAZ 522.3 MiB 12BZ1.LAX 618 kiB 12BZ1.txt 16 kiB Stuurgroep AHN (merged product by GeoTiles)
Colored Available for sub-units only, zoom in to select. Remixed by GeoTiles*
AHN3 Original C_12BZ1.LAZ 2.0 GiB C_12BZ1.LAX 1.8 MiB C_12BZ1.txt 16 kiB Stuurgroep AHN, public domain
Colored Available for sub-units only, zoom in to select. Remixed by GeoTiles*
AHN4 Original C_12BZ1.LAZ 3.7 GiB C_12BZ1.LAX 2.0 MiB C_12BZ1.txt 17 kiB Het Waterschapshuis, public domain
Colored (Partially) available for sub-units. Remixed by GeoTiles*
AHN5 Original, 2023 Het Waterschapshuis, CC-BY
Original, 2024 Het Waterschapshuis, CC-BY
Colored (Partially) available for sub-units. Remixed by GeoTiles*

*The point cloud is in the public domain and the aerial photograph available under CC-BY. However, the colored point cloud is a new product created by GeoTiles.

File checksums (md5) are available for AHN1, AHN2, AHN3 and AHN4.

Raster

Version DSM DTM ('maaiveld') License
5 meter ½ meter 5 meter ½ meter
AHN1 12bz1.tif.zip public domain
AHN2 r12bz1.tif.zip ahn2_5_12bz1.tif.zip i12bz1.tif.zip public domain *
AHN3 R5_12BZ1.zip R_12BZ1.zip M5_12BZ1.zip M_12BZ1.zip CC-0
AHN4 R5_12BZ1.zip R_12BZ1.zip M5_12BZ1.zip M_12BZ1.zip CC-0 [1, 2, 3, 4]
AHN5 (2023) CC-BY
AHN5 (2024) CC-BY

Aerial photograph

Year Version GeoTiff Source License
2016 RGB RGB_12BZ1.tiff 61.4 MiB Beeldmateriaal CC-BY 4.0
CIR CIR_12BZ1.tiff 57.3 MiB CC-BY 4.0
2017 RGB RGB_12BZ1.tiff 61.0 MiB Beeldmateriaal CC-BY 4.0
CIR CIR_12BZ1.tiff 59.6 MiB CC-BY 4.0
2018 RGB RGB_12BZ1.tiff 58.0 MiB Beeldmateriaal CC-BY 4.0
CIR CIR_12BZ1.tiff 56.0 MiB CC-BY 4.0
2019 RGB RGB_12BZ1.tiff 62.4 MiB Beeldmateriaal CC-BY 4.0
CIR CIR_12BZ1.tiff 57.5 MiB CC-BY 4.0
2020 RGB RGB_12BZ1.tiff 61.0 MiB Beeldmateriaal CC-BY 4.0
CIR CIR_12BZ1.tiff 57.3 MiB CC-BY 4.0
2022 RGB RGB_12BZ1.tiff 62.5 MiB Beeldmateriaal CC-BY 4.0
CIR CIR_12BZ1.tiff 61.9 MiB CC-BY 4.0
2023 RGB RGB_12BZ1.tiff 66.5 MiB Beeldmateriaal CC-BY 4.0
CIR CIR_12BZ1.tiff 67.1 MiB CC-BY 4.0

Sub-tiles 12BZ1

Image adapted from Kadaster TOPraster and OpenTopo.

Actueel Hoogtebestand Nederland

Point cloud

These sub-tiles of 1×1.25 km are clipped from the original point cloud. Goal is to enable distributed processing of the point cloud. Therefore, a 25 m overlap to the neighbouring (sub-)tiles is added. Thanks to the overlap between sub-tiles, the sub-tiles can be processed independently and therefore parallel.

All other data sets on this website are only available in the main tiling schema.

Tile Version Point cloud Spatial index Info Residential areas License
12BZ1_01 AHN1 12BZ1_01.LAZ 1.4 MiB 12BZ1_01.LAX 5 kiB 12BZ1_01.txt 9 kiB AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 12BZ1_01.LAZ 41.4 MiB 12BZ1_01.LAX 25 kiB 12BZ1_01.txt 11 kiB
AHN3 12BZ1_01.LAZ 88.9 MiB 12BZ1_01.LAX 77 kiB 12BZ1_01.txt 13 kiB
AHN4 12BZ1_01.LAZ 171.8 MiB 12BZ1_01.LAX 100 kiB 12BZ1_01.txt 14 kiB
AHN5
12BZ1_02 AHN1 12BZ1_02.LAZ 1.4 MiB 12BZ1_02.LAX 5 kiB 12BZ1_02.txt 9 kiB AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 12BZ1_02.LAZ 43.1 MiB 12BZ1_02.LAX 25 kiB 12BZ1_02.txt 11 kiB
AHN3 12BZ1_02.LAZ 93.2 MiB 12BZ1_02.LAX 79 kiB 12BZ1_02.txt 12 kiB
AHN4 12BZ1_02.LAZ 176.8 MiB 12BZ1_02.LAX 99 kiB 12BZ1_02.txt 13 kiB
AHN5
12BZ1_03 AHN1 12BZ1_03.LAZ 1.4 MiB 12BZ1_03.LAX 5 kiB 12BZ1_03.txt 10 kiB Donderen AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 12BZ1_03.LAZ 51.8 MiB 12BZ1_03.LAX 29 kiB 12BZ1_03.txt 12 kiB
AHN3 12BZ1_03.LAZ 101.1 MiB 12BZ1_03.LAX 85 kiB 12BZ1_03.txt 13 kiB
AHN4 12BZ1_03.LAZ 199.8 MiB 12BZ1_03.LAX 100 kiB 12BZ1_03.txt 15 kiB
AHN5
12BZ1_04 AHN1 12BZ1_04.LAZ 1.4 MiB 12BZ1_04.LAX 4 kiB 12BZ1_04.txt 9 kiB Donderen AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 12BZ1_04.LAZ 47.0 MiB 12BZ1_04.LAX 26 kiB 12BZ1_04.txt 11 kiB
AHN3 12BZ1_04.LAZ 97.6 MiB 12BZ1_04.LAX 84 kiB 12BZ1_04.txt 13 kiB
AHN4 12BZ1_04.LAZ 184.6 MiB 12BZ1_04.LAX 100 kiB 12BZ1_04.txt 14 kiB
AHN5
12BZ1_05 AHN1 12BZ1_05.LAZ 1.4 MiB 12BZ1_05.LAX 4 kiB 12BZ1_05.txt 8 kiB AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 12BZ1_05.LAZ 45.8 MiB 12BZ1_05.LAX 25 kiB 12BZ1_05.txt 10 kiB
AHN3 12BZ1_05.LAZ 100.9 MiB 12BZ1_05.LAX 87 kiB 12BZ1_05.txt 11 kiB
AHN4 12BZ1_05.LAZ 183.0 MiB 12BZ1_05.LAX 100 kiB 12BZ1_05.txt 13 kiB
AHN5
12BZ1_06 AHN1 12BZ1_06.LAZ 1.4 MiB 12BZ1_06.LAX 5 kiB 12BZ1_06.txt 12 kiB AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 12BZ1_06.LAZ 64.7 MiB 12BZ1_06.LAX 29 kiB 12BZ1_06.txt 15 kiB
AHN3 12BZ1_06.LAZ 150.1 MiB 12BZ1_06.LAX 89 kiB 12BZ1_06.txt 17 kiB
AHN4 12BZ1_06.LAZ 270.8 MiB 12BZ1_06.LAX 100 kiB 12BZ1_06.txt 18 kiB
AHN5
12BZ1_07 AHN1 12BZ1_07.LAZ 1.5 MiB 12BZ1_07.LAX 5 kiB 12BZ1_07.txt 10 kiB AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 12BZ1_07.LAZ 43.8 MiB 12BZ1_07.LAX 28 kiB 12BZ1_07.txt 11 kiB
AHN3 12BZ1_07.LAZ 96.4 MiB 12BZ1_07.LAX 79 kiB 12BZ1_07.txt 13 kiB
AHN4 12BZ1_07.LAZ 181.8 MiB 12BZ1_07.LAX 100 kiB 12BZ1_07.txt 14 kiB
AHN5
12BZ1_08 AHN1 12BZ1_08.LAZ 1.4 MiB 12BZ1_08.LAX 5 kiB 12BZ1_08.txt 9 kiB AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 12BZ1_08.LAZ 44.7 MiB 12BZ1_08.LAX 25 kiB 12BZ1_08.txt 11 kiB
AHN3 12BZ1_08.LAZ 106.0 MiB 12BZ1_08.LAX 89 kiB 12BZ1_08.txt 12 kiB
AHN4 12BZ1_08.LAZ 183.5 MiB 12BZ1_08.LAX 100 kiB 12BZ1_08.txt 13 kiB
AHN5
12BZ1_09 AHN1 12BZ1_09.LAZ 1.4 MiB 12BZ1_09.LAX 5 kiB 12BZ1_09.txt 9 kiB AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 12BZ1_09.LAZ 51.1 MiB 12BZ1_09.LAX 29 kiB 12BZ1_09.txt 11 kiB
AHN3 12BZ1_09.LAZ 116.3 MiB 12BZ1_09.LAX 85 kiB 12BZ1_09.txt 13 kiB
AHN4 12BZ1_09.LAZ 204.7 MiB 12BZ1_09.LAX 100 kiB 12BZ1_09.txt 14 kiB
AHN5
12BZ1_10 AHN1 12BZ1_10.LAZ 1.5 MiB 12BZ1_10.LAX 4 kiB 12BZ1_10.txt 11 kiB Vries AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 12BZ1_10.LAZ 63.7 MiB 12BZ1_10.LAX 32 kiB 12BZ1_10.txt 14 kiB
AHN3 12BZ1_10.LAZ 149.8 MiB 12BZ1_10.LAX 92 kiB 12BZ1_10.txt 15 kiB
AHN4 12BZ1_10.LAZ 257.8 MiB 12BZ1_10.LAX 100 kiB 12BZ1_10.txt 15 kiB
AHN5
12BZ1_11 AHN1 12BZ1_11.LAZ 1.5 MiB 12BZ1_11.LAX 5 kiB 12BZ1_11.txt 12 kiB AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 12BZ1_11.LAZ 78.7 MiB 12BZ1_11.LAX 34 kiB 12BZ1_11.txt 15 kiB
AHN3 12BZ1_11.LAZ 181.9 MiB 12BZ1_11.LAX 94 kiB 12BZ1_11.txt 17 kiB
AHN4 12BZ1_11.LAZ 291.1 MiB 12BZ1_11.LAX 100 kiB 12BZ1_11.txt 18 kiB
AHN5
12BZ1_12 AHN1 12BZ1_12.LAZ 1.5 MiB 12BZ1_12.LAX 5 kiB 12BZ1_12.txt 9 kiB AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 12BZ1_12.LAZ 45.8 MiB 12BZ1_12.LAX 26 kiB 12BZ1_12.txt 11 kiB
AHN3 12BZ1_12.LAZ 101.0 MiB 12BZ1_12.LAX 89 kiB 12BZ1_12.txt 12 kiB
AHN4 12BZ1_12.LAZ 171.3 MiB 12BZ1_12.LAX 99 kiB 12BZ1_12.txt 14 kiB
AHN5
12BZ1_13 AHN1 12BZ1_13.LAZ 1.4 MiB 12BZ1_13.LAX 5 kiB 12BZ1_13.txt 9 kiB AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 12BZ1_13.LAZ 42.5 MiB 12BZ1_13.LAX 25 kiB 12BZ1_13.txt 11 kiB
AHN3 12BZ1_13.LAZ 101.1 MiB 12BZ1_13.LAX 86 kiB 12BZ1_13.txt 12 kiB
AHN4 12BZ1_13.LAZ 179.8 MiB 12BZ1_13.LAX 99 kiB 12BZ1_13.txt 13 kiB
AHN5
12BZ1_14 AHN1 12BZ1_14.LAZ 1.4 MiB 12BZ1_14.LAX 5 kiB 12BZ1_14.txt 10 kiB AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 12BZ1_14.LAZ 55.3 MiB 12BZ1_14.LAX 28 kiB 12BZ1_14.txt 12 kiB
AHN3 12BZ1_14.LAZ 126.0 MiB 12BZ1_14.LAX 87 kiB 12BZ1_14.txt 13 kiB
AHN4 12BZ1_14.LAZ 233.8 MiB 12BZ1_14.LAX 99 kiB 12BZ1_14.txt 15 kiB
AHN5
12BZ1_15 AHN1 12BZ1_15.LAZ 1.5 MiB 12BZ1_15.LAX 4 kiB 12BZ1_15.txt 11 kiB Vries AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 12BZ1_15.LAZ 73.6 MiB 12BZ1_15.LAX 34 kiB 12BZ1_15.txt 13 kiB
AHN3 12BZ1_15.LAZ 155.3 MiB 12BZ1_15.LAX 96 kiB 12BZ1_15.txt 14 kiB
AHN4 12BZ1_15.LAZ 272.9 MiB 12BZ1_15.LAX 100 kiB 12BZ1_15.txt 15 kiB
AHN5
12BZ1_16 AHN1 12BZ1_16.LAZ 1.4 MiB 12BZ1_16.LAX 5 kiB 12BZ1_16.txt 12 kiB AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 12BZ1_16.LAZ 55.7 MiB 12BZ1_16.LAX 32 kiB 12BZ1_16.txt 14 kiB
AHN3 12BZ1_16.LAZ 115.3 MiB 12BZ1_16.LAX 87 kiB 12BZ1_16.txt 16 kiB
AHN4 12BZ1_16.LAZ 204.7 MiB 12BZ1_16.LAX 100 kiB 12BZ1_16.txt 17 kiB
AHN5
12BZ1_17 AHN1 12BZ1_17.LAZ 1.4 MiB 12BZ1_17.LAX 5 kiB 12BZ1_17.txt 10 kiB AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 12BZ1_17.LAZ 54.0 MiB 12BZ1_17.LAX 28 kiB 12BZ1_17.txt 12 kiB
AHN3 12BZ1_17.LAZ 133.8 MiB 12BZ1_17.LAX 89 kiB 12BZ1_17.txt 14 kiB
AHN4 12BZ1_17.LAZ 234.4 MiB 12BZ1_17.LAX 100 kiB 12BZ1_17.txt 15 kiB
AHN5
12BZ1_18 AHN1 12BZ1_18.LAZ 1.4 MiB 12BZ1_18.LAX 5 kiB 12BZ1_18.txt 11 kiB AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 12BZ1_18.LAZ 54.6 MiB 12BZ1_18.LAX 29 kiB 12BZ1_18.txt 13 kiB
AHN3 12BZ1_18.LAZ 136.5 MiB 12BZ1_18.LAX 84 kiB 12BZ1_18.txt 14 kiB
AHN4 12BZ1_18.LAZ 238.3 MiB 12BZ1_18.LAX 100 kiB 12BZ1_18.txt 15 kiB
AHN5
12BZ1_19 AHN1 12BZ1_19.LAZ 1.4 MiB 12BZ1_19.LAX 5 kiB 12BZ1_19.txt 9 kiB Ubbena AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 12BZ1_19.LAZ 40.3 MiB 12BZ1_19.LAX 24 kiB 12BZ1_19.txt 11 kiB
AHN3 12BZ1_19.LAZ 94.6 MiB 12BZ1_19.LAX 82 kiB 12BZ1_19.txt 12 kiB
AHN4 12BZ1_19.LAZ 171.7 MiB 12BZ1_19.LAX 100 kiB 12BZ1_19.txt 14 kiB
AHN5
12BZ1_20 AHN1 12BZ1_20.LAZ 1.5 MiB 12BZ1_20.LAX 4 kiB 12BZ1_20.txt 10 kiB Ubbena, Vries AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 12BZ1_20.LAZ 57.7 MiB 12BZ1_20.LAX 32 kiB 12BZ1_20.txt 12 kiB
AHN3 12BZ1_20.LAZ 128.8 MiB 12BZ1_20.LAX 90 kiB 12BZ1_20.txt 14 kiB
AHN4 12BZ1_20.LAZ 225.6 MiB 12BZ1_20.LAX 100 kiB 12BZ1_20.txt 15 kiB
AHN5
12BZ1_21 AHN1 12BZ1_21.LAZ 1.4 MiB 12BZ1_21.LAX 5 kiB 12BZ1_21.txt 10 kiB AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 12BZ1_21.LAZ 52.0 MiB 12BZ1_21.LAX 27 kiB 12BZ1_21.txt 16 kiB
AHN3 12BZ1_21.LAZ 117.9 MiB 12BZ1_21.LAX 82 kiB 12BZ1_21.txt 17 kiB
AHN4 12BZ1_21.LAZ 195.2 MiB 12BZ1_21.LAX 99 kiB 12BZ1_21.txt 18 kiB
AHN5
12BZ1_22 AHN1 12BZ1_22.LAZ 1.4 MiB 12BZ1_22.LAX 4 kiB 12BZ1_22.txt 10 kiB AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 12BZ1_22.LAZ 55.7 MiB 12BZ1_22.LAX 30 kiB 12BZ1_22.txt 12 kiB
AHN3 12BZ1_22.LAZ 129.8 MiB 12BZ1_22.LAX 87 kiB 12BZ1_22.txt 13 kiB
AHN4 12BZ1_22.LAZ 226.5 MiB 12BZ1_22.LAX 100 kiB 12BZ1_22.txt 14 kiB
AHN5
12BZ1_23 AHN1 12BZ1_23.LAZ 1.5 MiB 12BZ1_23.LAX 5 kiB 12BZ1_23.txt 10 kiB Zeijen, Ubbena AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 12BZ1_23.LAZ 58.3 MiB 12BZ1_23.LAX 30 kiB 12BZ1_23.txt 12 kiB
AHN3 12BZ1_23.LAZ 129.5 MiB 12BZ1_23.LAX 87 kiB 12BZ1_23.txt 15 kiB
AHN4 12BZ1_23.LAZ 233.5 MiB 12BZ1_23.LAX 100 kiB 12BZ1_23.txt 16 kiB
AHN5
12BZ1_24 AHN1 12BZ1_24.LAZ 1.2 MiB 12BZ1_24.LAX 5 kiB 12BZ1_24.txt 9 kiB Ubbena, Zeijen AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 12BZ1_24.LAZ 43.9 MiB 12BZ1_24.LAX 26 kiB 12BZ1_24.txt 11 kiB
AHN3 12BZ1_24.LAZ 111.1 MiB 12BZ1_24.LAX 83 kiB 12BZ1_24.txt 12 kiB
AHN4 12BZ1_24.LAZ 180.8 MiB 12BZ1_24.LAX 90 kiB 12BZ1_24.txt 13 kiB
AHN5
12BZ1_25 AHN1 12BZ1_25.LAZ 1.4 MiB 12BZ1_25.LAX 4 kiB 12BZ1_25.txt 10 kiB Ubbena AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 12BZ1_25.LAZ 43.3 MiB 12BZ1_25.LAX 25 kiB 12BZ1_25.txt 11 kiB
AHN3 12BZ1_25.LAZ 100.5 MiB 12BZ1_25.LAX 84 kiB 12BZ1_25.txt 13 kiB
AHN4 12BZ1_25.LAZ 167.6 MiB 12BZ1_25.LAX 94 kiB 12BZ1_25.txt 14 kiB
AHN5

No guarantee on availability, completeness, correctness or fitness for any particular purpose is implied by the distribution of or linking to this data. The license indicated with the products is to the best of my knowledge at the time of writing. Please confirm the applicable license with the source before integrating the data.