UTRSUB GRID.DAT: Difference between revisions
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imported>Lang Guenther m (notice of EPSG code) |
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|name_de=UTRSUB_GRID.DAT | |name_de=UTRSUB_GRID.DAT | ||
|filetype=utrsub_grid.dat | |filetype=utrsub_grid.dat | ||
|version=1.x / | |version=1.x / September 2010 | ||
|version_descr= | |version_descr=September 2010 | ||
|significance=contains grid data for the numerical model UnTRIM2 (with SubGrid data) | |significance=contains grid data for the numerical model UnTRIM2 (with SubGrid data) | ||
|filecontents= | |filecontents= | ||
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#* last edge number with Dirichlet boundary condition (number of edges with flow); | #* last edge number with Dirichlet boundary condition (number of edges with flow); | ||
#* mean geographic latitude; | #* mean geographic latitude; | ||
#* EPSG code for coordinate transformation (see [http://www.epsg-registry.org/ EPSG Geodetic Parameter Registry]); | |||
#* informative text; | #* informative text; | ||
#* number of subpolygons (larger or equal than number of polygons); | #* number of subpolygons (larger or equal than number of polygons); | ||
Revision as of 16:20, 2 September 2010
Basic Information
File-Type
utrsub_grid.dat
File-Form
FORMATTED
Version
1.x / September 2010
Description-Date
September 2010
Significance of the File
contains grid data for the numerical model UnTRIM2 (with SubGrid data)
File-Contents (in Catchwords)
- static informations:
- number of vertices;
- number of edges (geometric edges of a grid);
- number of polygons (geometric polygons of a grid);
- number of red polygons;
- number of polygons at open boundaries;
- number of internal edges;
- last edge number with Dirichlet boundary condition (number of edges with flow);
- mean geographic latitude;
- EPSG code for coordinate transformation (see EPSG Geodetic Parameter Registry);
- informative text;
- number of subpolygons (larger or equal than number of polygons);
- number of subedges (larger or equal than number of edges with flow).
- dynamic data:
- vertex data (for each vertex):
- vertex number (informative),
- x- and y-coordinate, and
- (optional) vertex depth.
- polygon data (for each polygon):
- polygon number (informative),
- number of vertices (and edges),
- x- and y-coordinate of the center (meaningful for the computational method),
- node indices (anti clockwise sorting), and
- edge indices (anti clockwise sorting).
- edge data (for each edge):
- edge number (informative),
- first node of an edge,
- second node of an edge,
- indices of adjacent polygons (0 indicates missing polygons - boundary edge).
- subpolygon data (for each polygon):
- polygon number (informative),
- number of local subpolygons,
- areas for all local subpolygons (the sum of all subpolygon areas must be less than or equal to the geometric polygon area), and
- depths for all local subpolygons.
- subedge data (for each edge):
- edge number (informative),
- number of local subedges,
- lengths of all local subedges (the sum of all subedge lengths must be less than or equal to the geometric edge length), and
- depths for all local subedges.
- vertex data (for each vertex):
Programs using this Type of File
GRIDCONVERT, HVIEW2D, UTRPRE, VVIEW2D
Example-File
see $PROGHOME/examples/lib/h_grid/
back to: File Descriptions