Ecere Experiments Final Results - sofwerx/cdb2-concept GitHub Wiki

CDB X sample GeoPackages resulting from Ecere experiments

The results produced were sourced from the CAE San Diego CDB 1.x.
An additional data layer was sourced from the NASA Visible Earth Blue Marble.
A detailed description of these results is featured in the Engineering Report – Tiling section.
These are also available from the CDB SWG / CDB X Tech Sprint folder.

MVT: Mapbox Vector Tiles (specifications)

GMT: GNOSIS Map Tiles (specifications)

E3D: Ecere 3D Models (specifications)

San Diego CDB layers packaged together

Data / Link

LOD Grouping

Models Encoding

Imagery Encoding

Coverage Encoding

Vector Encoding

Uncompressed size

Compressed Size

As a single GeoPackage

San Diego

Single File

Binary glTF

JPEG

PNG

MVT

12.8 GiB

9.8 GiB

San Diego

Single File

E3D

JPEG

GMT

GMT

10.3 GiB

Grouping tiles of 5 LODs per GeoPackage

San Diego

5

Binary glTF

JPEG

PNG

MVT

14.6 GiB

9.9 GiB

San Diego (subset)

5

Binary glTF

JPEG

PNG

MVT

1.4 GiB

217.5 MiB

San Diego CDB packaged as separate layers

Elevation

Data / Link

LOD Grouping

Coverage Encoding

Uncompressed size

Compressed Size

Elevation

6

PNG / 16-bit integer

483 MiB

472 MiB

Elevation

6

GMT / 16-bit integer

370.8 MiB

365.2 MiB

Elevation

6

GeoTIFF / 32-bit float

1.4 GiB

1.3 GiB

Imagery

Data / Link

LOD Grouping

Imagery Encoding

Uncompressed size

Compressed Size

Blue Marble

7

JPEG

1.6 GiB

1.4 GiB

Imagery (Medium)

7

JPEG

4.9 GiB

4.7 GiB

Imagery (High)

7

JPEG

4.5 GiB

4.3 GiB

Vector data

Data / Link

LOD Grouping

Vector Encoding

Uncompressed size

Compressed Size

Hydrography

Single File

Mapbox Vector Tiles

424 KiB

Roads

Single File

Mapbox Vector Tiles

69.1 MiB

17.6 MiB

Airport Lights

Single File

Mapbox Vector Tiles

144 KiB

Hydrography

Single File

GNOSIS Map Tiles

248 KiB

Roads

Single File

GNOSIS Map Tiles

38 MiB

23.4 MiB

Airport Lights

Single File

GNOSIS Map Tiles

148 KiB

3D Models

Using referencing placement points

Data / Link

LOD Grouping

Models Encoding

Vector Encoding

Uncompressed size

Compressed Size

Buildings

Single File

Binary glTF

Mapbox Vector Tiles

2.9 GiB

321.3 MiB

Trees

Single File

Binary glTF

Mapbox Vector Tiles

2 MiB

Coronado Bridge

Single File

Binary glTF

Mapbox Vector Tiles

272 KiB

Buildings

Single File

E3D

GNOSIS Map Tiles

560.8 MiB

332.8 MiB

Trees

Single File

E3D

GNOSIS Map Tiles

1.8 MiB

Coronado Bridge

Single File

E3D

GNOSIS Map Tiles

196 KiB

Buildings

4

Binary glTF

Mapbox Vector Tiles

4.1 GiB

446.6 MiB

Buildings

5

Binary glTF

Mapbox Vector Tiles

3.7 GiB

409.2 MiB

Buildings

7

Binary glTF

Mapbox Vector Tiles

2.9 GiB

321.3 MiB

Trees

6

Binary glTF

Mapbox Vector Tiles

2.9 MiB

1.2 MiB

Batching models per tile

Data / Link

LOD Grouping

Models Encoding

Vector Encoding

Uncompressed size

Compressed Size

Buildings

Single File

Binary glTF

Mapbox Vector Tiles

3.9 GiB

512.4 MiB

Trees

Single File

Binary glTF

Mapbox Vector Tiles

91 MiB

2.3 MiB

Coronado Bridge

Single File

Binary glTF

Mapbox Vector Tiles

576 KiB

Buildings

Single File

E3D

GNOSIS Map Tiles

417.3 MiB

339.8 MiB

Trees

Single File

E3D

GNOSIS Map Tiles

3.3 MiB

Coronado Bridge

Single File

E3D

GNOSIS Map Tiles

256 KiB
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