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NTDB & NTMS Specifications (250K & 100K)
Updated: 1 December 2007

Raster Product Specifications

1. Introduction

The contents of this appendix document the minimum quality level criterion the raster products derived from the NTMS 1:250 000 and 1:100 000 scale products must achieve before being released for public access.

2. Raster Production Specifications

2.1 Raster 250K - Premium
DPI: 200
Registered Points: minimum 12 points
Colour: 24 bit colour
Anti-aliasing: Required
Background: Transparent background
ECW Compression Ratio: 5
Geodetic Datum: GDA94
Geodetic Projection: GEODETIC (Geographic)

2.2 Raster 250K - Standard
DPI: 200
Registered Points: minimum 12 points
Colour: 24 bit colour
Anti-aliasing: Required
Background: Transparent background
ECW Compression Ratio: 20
Geodetic Datum: GDA94
Geodetic Projection: GEODETIC (Geographic)
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