SMS:2D Scatter Point Files (*.xy)
Two-dimensional scatter point sets are stored in 2D scatter point files. The file includes the scatter point locations and requires that functional information be defined in a separate dataset file. However, multiple scatter point sets can be stored in a single file. An XY coordinate pair defines each point in a scatter point set. The format allows time variant datasets to be associated with scattered data points as well as to organize datasets by allowing the user to assign an ID to the scattered dataset.
Scatter files are opened through File | Open and are saved from File | Save Scatter from the Scatter module. When scatter point files are saved, a super file is saved. The super file saves and references the scatter and dataset files.
File Format
| SCAT2D | /* File type identifier */ |
| BEGSET | /* Beginning of cards for scatter point set */ |
| NAME "name" | /* Name of scatter point set */ |
| ID id | /* ID of scatter point set */ |
| DELEV elev1 | /* Default elevation */ |
| IXY np | /* Number of points in set, begin point listing */ |
| id1 x1 y1 | /* Point id and coordinatess, one per line */ |
| id2 x2 y2 | |
| . | |
| . | |
| idnpxnpynp | |
| ENDSET | /* End of cards for scatter point set */ |
| /* Repeat point set cards as many times as necessary */ |
Sample File
SCAT2D
BEGSET
NAME "lakes"
ID 8493
DELEV 0.00000000000e+00
IXY 25
1 1.47000000000e+02 3.90000000000e+02
2 8.82000000000e+02 9.49000000000e+02
.
.
24 1.73000000000e+02 7.01000000000e+02
25 5.39000000000e+02 8.98000000000e+02
ENDSET
Cards
| Card Type | BEGSET | ||
| Description | Identifies the beginning of a scatter point set. No fields. | ||
| Required | NO | ||
| Card Type | NAME | ||
| Description | Defines the name for the following scatter point set. | ||
| Required | NO | ||
| Format | NAME "name" | ||
| Sample | NAME "st mary" | ||
| Field | Variable | Value | Description |
| 1 | name | str | The name for the following scatter points. Remains as default until new NAME card is encountered. |
| Card Type | ID | ||
| Description | Defines the ID for the scatter point set. | ||
| Required | YES | ||
| Format | ID id | ||
| Sample | ID 43098 | ||
| Field | Variable | Value | Description |
| 1 | id | + | The ID for the following scatter point set. |
| Card Type | IXY | ||||||||
| Description | Defines a scatter point set. | ||||||||
| Required | YES | ||||||||
| Format |
| ||||||||
| Sample |
| ||||||||
| Field | Variable | Value | Description | ||||||
| 1 | np | + | The number of scatter points in the scatter point set. | ||||||
| 2 | id | + | The ids of the points. | ||||||
| 3-4 | x,y | ± | The coordinates of the points. | ||||||
| Repeat fields 2 - 4 np times | |||||||||
| Card Type | ENDSET | ||
| Description | Identifies the end of a scatter point set. No fields. | ||
| Required | NO | ||
Related Topics
SMS – Surface-water Modeling System | ||
|---|---|---|
| Modules: | 1D Grid • Cartesian Grid • Curvilinear Grid • GIS • Map • Mesh • Particle • Quadtree • Raster • Scatter • UGrid |  |
| General Models: | 3D Structure • FVCOM • Generic • PTM | |
| Coastal Models: | ADCIRC • BOUSS-2D • CGWAVE • CMS-Flow • CMS-Wave • GenCade • STWAVE • WAM | |
| Riverine/Estuarine Models: | AdH • HEC-RAS • HYDRO AS-2D • RMA2 • RMA4 • SRH-2D • TUFLOW • TUFLOW FV | |
| Aquaveo • SMS Tutorials • SMS Workflows | ||
