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Download Meridian 2 user guide and technical specification
Transcript
Node Record [NODEREC] 16
Field
Position
Format
Value example
Description
REC_DESC
01:02
A2
16
NODE_ID
03:08
I6
Unique node record identifier.
GEOM_ID
09:14
I6
Pointer to [GEOMETRY1] record of
point feature.
NUM_LINKS
15:18
I4
>0
| DIR
*:*
I1
1 or 2
| GEOM_ID
*:*
I6
Pointer to [GEOMETRY1] of link.
| ORIENT
*:*
R4,1
Bearing of first/last segment of link
clockwise from grid north
1 for start of link or 2 for end of link.
(not used for roads).
| LEVEL
CONT_MARK
EOR
*:*
*:*
*:*
I1
I1
A1
0 or 1
Link level at node (roads only).
1
Link level at node for all other layers.
0
No further records
or 1
or continuation record follows.
%
Record terminator.
NOTE: * = variable integer.
Record example:
1600000800480400012004921226000%
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1
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2
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3
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4
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5
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6
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7
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8
12345678901234567890123456789012345678901234567890123456789012345678901234567890
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Template
NOTES:
| indicates repeating group.
The pair of fields {VAL_TYPE} and {VALUE} will repeat to specify all the attributes required. It may be
necessary to utilise a continuation record to specify all attributes.
Meridian 2 technical specification chapter 4 v5.2 – 02/2007 © Crown copyright Page 52 of 93
