Two-dimensional scatter point sets are stored in 2D scatter point files. Multiple scatter point sets can be stored in a single file. Each point in a scatter point set is defined by a pair of xy coordinates. The format of the 2D scatter file is shown in Figure 1 and a sample file in Figure 2.
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SCAT2D |
/* File type identifier */ |
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BEGSET |
/* Beginning of cards for scatter point set */ |
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NAME "name" |
/* Name of scatter point set */ |
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ID id |
/* ID of scatter point set */ |
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DELEV elev1 |
/* Default elevation */ |
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IXY np |
/* Number of points in set, begin point listing */ |
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id1 x1 y1 |
/* Point id and coordinatess, one per line */ |
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id2 x2 y2 |
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. |
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. |
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idnp xnp ynp |
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ENDSET |
/* End of cards for scatter point set */ |
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/* Repeat point set cards as many times as necessary */ |
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Figure 1. 2D Scatter Point File Format.
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SCAT2D |
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BEGSET |
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NAME "gages" |
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ID 8493 |
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DELEV 0.00000000000e+00 |
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IXY 25 |
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1 1.47000000000e+02 3.90000000000e+02 |
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2 8.82000000000e+02 9.49000000000e+02 |
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. |
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. |
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24 1.73000000000e+02 7.01000000000e+02 |
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25 5.39000000000e+02 8.98000000000e+02 |
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ENDSET |
Figure 2. Sample 2D Scatter Point File.
The cards used in the 2D scatter point file are as follows:
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Card Type |
SCAT2D |
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Description |
File type identifier. Must be on first line of file. No fields. |
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Required |
YES |
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Card Type |
BEGSET |
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Description |
Identifies the beginning of a scatter point set. No fields. |
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Required |
NO |
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Card Type |
NAME |
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Description |
Defines the name for the following scatter point set. |
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Required |
NO |
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Format |
NAME "name" |
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Sample |
NAME "wells" |
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Field |
Variable |
Value |
Description |
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1 |
name |
str |
The name for the following scatter points. Remains as default until new NAME card is encountered. |
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Card Type |
ID |
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Description |
Defines the ID for the scatter point set. |
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Required |
YES |
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Format |
ID id |
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Sample |
ID 43098 |
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Field |
Variable |
Value |
Description |
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1 |
id |
+ |
The ID for the following scatter point set. |
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Card Type |
DELEV |
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Description |
Defines the default elevation for the scatter point set. |
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Required |
NO |
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Format |
DELEV el |
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Sample |
DELEV 9.0 |
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Field |
Variable |
Value |
Description |
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1 |
el |
± |
The default elevation for the following scatter points. Remains as default until new DELEV card is encountered. |
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Card Type |
IXY |
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Description |
Defines a scatter point set. |
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Required |
YES |
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Format |
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Sample |
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Field |
Variable |
Value |
Description | ||||||
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1 |
np |
+ |
The number of scatter points in the scatter point set. | ||||||
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2 |
id |
+ |
The ids of the points. | ||||||
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3-4 |
x,y |
± |
The coordinates of the points. | ||||||
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Repeat fields 2-4 np times |
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Card Type |
ENDSET |
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Description |
Identifies the end of a scatter point set. No fields. |
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Required |
NO |