OpenLaszlo

OpenLaszlo

VisualGPSとVisualGPSceといろいろ

VisualGPSとVisualGPSce

S52 in openev

S52 in openev

S57 map files in qgis-developer

libbsb is a portable C library for reading and writing BSB format image files

libbsb is a portable C library for reading and writing BSB format image files

SpatiaLite and VirtualShape

SpatiaLite a complete Spatial DBMS in a nutshell

GIS in SourceForge.JP

GIS in SourceForge.JP

Marine Howto and OpenCPN

OpenCPN is a free software (GPL) project to create a concise chart plotter and navigation software for use as an underway or planning tool.

Marine Howto

zyGrib - download and view weather forecast charts & data (winds; temp; cloud cover; etc) For Linux and Windows.


International maritime signal flags

XTides and its children