Product Name: Map Sheets (lgate-011)

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Product Name: Map Sheets (lgate-011)

Description:

Map sheet boundaries for 3, 5, 10, 20, 50, 100, 250 and 3,000k sheets which can be used for various purposes such as when requesting data.

Date Last Reviewed:

19th February 2014

Last Reviewed By:

Landgate Data Management Group

Ref Field Name Field Type Field Width Description Associated Attribute Values Y/N 1 OGC_FID Integer Feature Identifier Number N 2 THE_GEOM Geometry A system-generated ID created upon

loading the SDE layer into PostGIS. N

3 MAPSERIES Variable Character 2

Is a collection of ALL MAP SHEET SERIES (Public, Titles Index, Valuer General)Note that this layer includes the Christmas and Cocos (Keeling)

Island area.

N

4 MAPID Variable

Character 15

Is an abbreviated description of a

map sheet identifier Y

5 MAXE(Maximum

Easting) Number 25,5

A Universal Transverse Mercator (UTM) rectangular coordinate recorded in meters. The origin of

each UTM zone is the central meridian. The value given to the central meridian is a false easting of

500,000.

N

6 MAXN(Maximum

Northing) Number 25,5

A UTM rectangular coordinate recorded in meters. The origin of each UTM zone is the equator. The value given to the equator is a false

northing of 10,000,000.

N

7 MINE(Minimum

Easting) Number 25,5

A Universal Transverse Mercator (UTM) rectangular coordinate recorded in meters. The origin of

each UTM zone is the central meridian. The value given to the central meridian is a false easting of

500,000

N

8 MINN (Minimum

Northing) Number 25,5

A UTM rectangular coordinate recorded in meters. The origin of each UTM zone is the equator. The value given to the equator is a false

northing of 10,000,000.

N

9 MAPPROJ Variable Character 1

The default projection for a map. This is normally “A” (Australia Map

Grid) or left “G” (to imply GEOGRAPHICAL).

N

10 COORDSYS Variable Character 1

The coordinate system for the database has been defined as:

 Coordinates - Lat/Long

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Ref Field Name Field Type Field Width Description Associated Attribute Values Y/N (Geographic)  Datum - GDA94

 Geometry types do not have M or Z

 High Precision Database

 Extent:

Practical physical extents for Western Australia Minimum Longitude: 93 Degrees Maximum Longitude: 131 Degrees Minimum Latitude: -46 Degrees Maximum Latitude: -8 Degrees

Database Extents (limits calculated based on precision) Min X ‐ 399.999999991152 Degrees Max X 159383152.222656 Degrees Min Y ‐ 399.999999982305 Degrees Max Y 159383152.222656 Degrees  Dataset Tolerance: XY Tolerance 0.000000035390258 Degrees (approx. 3.8mm)  Dataset Precision: XY Resolution 0.000000017695129 Degrees (approx. 1.9mm)

 Minimum length between vertices

XY Tolerance 0.000000035390258

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Ref Field Name Field Type Field Width Description Associated Attribute Values Y/N Degrees (approx. 3.8mm) 11 AMGZONE Number 6

Is an AMG zone that provides part of an AMG cross reference equivalent to a latitude/longitude reference for a

feature.

N

12 IRREGBDY Variable Character 1

Signifies whether a given map is

metric ('Y') or imperial ('N') N

13 MAPCODE Variable Character 7

All mapsheets of one series (1:10 000 and 1:250 000) have a unique

code across the system. e.g. NOONKANBAH 1:250 000 has

a MapCode of NOON JANDAKOT 1:10 000 has a MapCode of JAN. N 14 MAP_NUM Variable Character 12

Is the unique reference assigned to maps in DOLA and is made up of alphanumerics and punctuation (e.g.

BG34/09.39 and SH 50 01).

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Attribute Values

Attribute Name: MAPID

This field stores an abbreviated description of a map sheet identifier (refer diagram following).

A unique map sheet identifier is created when this field is used with the MAPSERIES field. There are a range of different map sheet formats. The first character of the MAPID indicates the format of the remainder of the field.

Field Type/Width Description/Attributes

ch 1

L=Large Scale (1:500-1:10,000) M=Medium Scale (1:10,000-1:100,000) S=Small Scale (1:250,000-1:1,000,000) T=Town site or Regional (metric) X=Town site or Regional (imperial) B=Bonnes W=W.A. 1:3,000,000 Large Scale ch 2-4 Scale is nnn x 100 ie. 005 = 1:500, 010 = 1:1000, 020 = 1:2000, 025 = 1:2500, 050 = 1:5000, 100 = 1:10000

ch 5-8 Primary Rectangle, alpha-numeric e.g. BG34 ch 9-11 Local Easting, numeric, right justified, zero filled ch 12-14 Local Northing, numeric, right justified, zero filled

ch 15 Y if non standard or part map, blank otherwise

Medium Scale ch 2-4 Scale is nnn x 1000 i.e. 025 = 1:25000, 050 = 1:50000, 100 = 1:100000

ch 5-8 1:100,000 Grid Reference, numeric e.g. 2131

ch 9-11

1:50,000 Quadrant, I, II, III, IV, left justified, blank filled, blank for 1 : 100000 maps ch 12-13 1 : 25000 grid reference, NE, NW, SE, SW,

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Field Type/Width Description/Attributes ch 14 unused; blank

Small Scale

ch 2-4

Scale is nnn x 10000 ie. 025 = 1:250000,

050 = 1:500000

ch 5-8 1:1M Grid Reference & Zone e.g. SH51 for 1:250,000

ch 9-10 1:250,000 Grid Reference 01 - 16; numeric, right justified, zero filled for 1:500,000

ch 9 1:500,000 descriptor E, W; non blank ch 10 1:500,000 descriptor N, S or blank ch 11-14 unused; blank

Town site & Regional (Metric) Ch 2-4 Scale is nnn x 100 ie. 005 = 1:500, 010 = 1:1000, 020 = 1:2000, 025 = 1:2500, 050 = 1:5000, 100 = 1:10000 Ch 5-9

Town site or Locality Abbreviation,

left justified, blank filled (this code is equivalent to ABBDISTRNM in the DIST file

Ch 10-12 Descriptor REG, INS, TWN, LOC, NTH, STH, SHT or blank Ch 13-14 Descriptor N, S, EN, WN, ES, WS, numeric or blank;

left justified, zero filled if numeric, alphanumeric Ch 15 unused; blank

Town site & Regional (Imperial)

Ch 2- Scale is 1 inch : nnn chains ie.

004 = 1 inch : 4 chains numeric, right justified, zero filled Ch 5-9 Town site or Locality Abbreviation, left justified, blank filled

(this code is equivalent to ABBDISTRNM in the DIST file) Ch 10-12 Descriptor REG, INS, TWN, LOC, NTH, STH, SHT or blank

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Ch 13-14 Descriptor N, S, EN, WN, ES, WS, numeric or blank; left justified, zero filled if numeric, alphanumeric

Ch 15 unused; blank

Bonnes Note: There are now very few map sheets of this map series in existence

ch2-4 Scale is 1 inch : nnn chains ie. 020 = 1 inch : 20 chains, numeric, right justified, zero filled

ch 5-7 Bonnes number; numeric, right justified, zero filled ch 8 40 chain number; numeric, blank filled

ch 9 20 chain number; numeric, blank filled ch 10-15 unused; blank State - This MAPID is used as a catch-all for any polygons which have failed to be assigned to any larger scale map for a variety of reasons. There should never be many polygons assigned to this map sheet. ch 2-4 scale; 3000 = 1:3000000

ch 5-9 region i.e. W.A.; left justified, blank filled

ch 10-15

unused; blank

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