JANET

Basic Information

Name of Program

JANET

Version-Date

2.30

Description-Date

March 2026

Catchwords

unstructured mesh
polyline editing
mesh generator
mesh optimization
mesh viewer
versionizing
surface sediments
linking of "Datenquellenkarten"
accessible colour tables
Using SubGrid depts as DGM depths
building projection

Short Description of Functionality

The program JANET is an interactive tool for generation and optimization of unstructured meshes.

JANET was developed by Smile Consult GmbH, Hannover (Germany). The software development is not finished yet, so updates are installed frequently.

Input-Files

1. Format gitter05.dat/bin (in JANET: TICAD systemfile ASCII!) The binary version of this format is not supported by JANET!
2. Binary mesh format of JANET: janet.bin
3. Smilesoftware binary format (.sbf)
4. TELEMAC Mesh format selafin
5. UNTRIM Mesh format untrim_grid.dat (.dat)(.grd)
6. UNTRIM2 Mesh format utrsub_grid.dat (.dat)
7. TRIM Mesh format tr2.topo.bin
8. Structure line format of BAW insel.dat
9. Structure line format of BAW digi.gkk
10. TRIANGLE polyline format (poly)
11. Format geom.dat (in JANET: JANET ASCII format for {x,y,z} tripel data)
12. ASCII format for point data
13. Bathymetry data in HDF5 format

Output-Files

1. Format gitter05.dat/bin (in JANET: TICAD systemfile ASCII!)
2. Binary mesh format of JANET: janet.bin
3. Smilesoftware binary format (.sbf)
4. TELEMAC Mesh format selafin
5. UNTRIM Mesh format untrim_grid.dat (.dat)(.grd)
6. UNTRIM2 Mesh format utrsub_grid.dat (.dat)
7. Structure line format of BAW insel.dat
8. Format geom.dat (in JANET: JANET ASCII format for {x,y,z} tripel data)

Methodology

New features in version 2.30:

• Improved generation of metadata in screenshot menu
• Layer commands in python scripts
• Import of bathymetric data in HDF 5

Program(s) to run before this Program

CREATE_SIMPLE_UNTRIM2_GRID, DREHE2D, GISMO, GRIDCONVERT, POLYUMFORM, UNTRIM2007MONITOR

Program(s) to run after this Program

GRIDCONVERT, TICTRI, TOUTR, UTRPRE

Additional Information

Language

Java

Additional software

Java Runtime Environment

Executables

• Windows: janet.bat
• Linux-Workstations and FAT-Nodes: janet

Starting JANET:

1. You have to define the PROGHOME variable on your machine.
2. You have to extend your PATH variable with the PATH of the executable script
3. You have to start a command line environment (DOS input box / xterm)
4. You have to type in janet [xxx]. The optional xxx is the size of memory in megabytes reserved for the Java Runtime Environment.

Original Version

Smile Consult GmbH

Maintenance

Smile Consult GmbH, working group PRE

Documentation/Literature

• Janet user guide (only in German!)
  
• BAW internal documentation of a grid generation training: %PROGHOME%\examples\janet\schulung_workshop\schulung_2023_03\
• recent internal documentation see: %PROGHOME%\examples\davit\entwicklung\2025b\06_version_info
• smile consult: https://www.smileconsult.de/download/Dokumente/Dokumente_und_Informationen_zu_den_smilesoftware_Werkzeugen.pdf

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