SYNGRID

Basic Information

Name of Program

SYNGRID

Version-Date

September 1995

Description-Date

April 2008

Catchwords

Preprocessor
Generation of artificial bearing data

Short Description of Functionality

The program SYNGRID creates user-defined, artificial bearing data. This data will be stored in a file of type geom.dat. In addition, the program can compute and store the border of the bearing data. The border data will be stored in a file of type rand.dat.

Input-Files

General input data (filetype syngrid.dat).

Output-Files

1. Artificial bearing data (filetype geom.dat).
2. (optional) coordinates of the border points, sorted counterclockwise around the bearing data (filetype rand.dat).

Methodology

The user defines all artificial bearing data in the general input file syngrid.dat. The user has the following possibilities to choose from:

• single points,
• points along a line,
• points along a a circle

All defined points will be stored in one file of type geom.dat. The computation of the border uses the principle of radar beams: Around the data point lying east-most the program simulated a radar beam with a constant, user-defined radius and a starting angle. This radar beam covers a circled area around this east-most point. The first point found by the radar beam is the next border point. In the next step the radar beam looks for a successor border point around the last found border point. the search for the border comes to an end, if the border start point (lying east-most) is identified as the "next" border point by the radar beam.

Program(s) to run before this Program

-

Program(s) to run after this Program

DREHE2D, GEOMFD2, IGEL2D, UPDA2D

Additional Information

Language

Fortran90

Additional software

-

Original Version

J. Jürges

Maintenance

working group PRE

Documentation/Literature

$PROGHOME/examples/syngrid/

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