AiGIS

Overview

AiGIS is a 3D GIS designed for analysis on exploration data of irregular-shaped small bodies. The shape of a target body is represented by a polygon model, and geographic information is associated with polygons of the model. AiGIS can visualize and manipulate the shape model and map data on it.


Download

Latest release

The source code of AiGIS is under preparation to release.


Previous releases

Previous releases can be found here.


Sample data

These data are distributed as a sample. DO NOT use them in your actual scientific research projects.


See below for a detailed description of the dataset for AiGIS.


Utilities

Latitude-Longitude grid generator


How to use

Setting-up

Before start-up AiGIS, it convenient to set your local directory environment to AiGIS preference file (AiGIS.properties).


Location of AiGIS.properties


Items in AiGIS.properties


Start-up


Data



Model manipulation


Work with Map data



Work with Graph map data




Image and Map image mapping




Multi-view mode

NOTICE: From v20180717, memory handling in the multi-view mode is improved. Now you don’t worry about slowing-down of App with large shape models and map data.

NOTICE: Multi-view mode requires a certain amount of memories. We recommend using a data-set containing a single model to avoid slowing down of operation when using this mode (see Itokawa sample (low-resolution data for the Multi-view mode).



Menus

File menu


View menu


Multi-View menu


Image menu


Data format

Map data

Sample: Itokawa_elevation_64.txt

#Data Name (Appeared on the Map data list)
Elevation
#Unit (or description)
[m]
#The Number of Polygons
49152
#Polygon_ID Value (Tab and Space is allowed as delimiter)
1	-3.451888084411621
#Continue for all polygones
2	-3.431725025177002
3	-3.906290054321289
4	-4.018442153930664
5	-4.496425151824951


Notes on Map data


Graph map data

Sample: nirs_spcmap_051116.txt (NIRS Spectra)

#Name of Map data that the graph map data is associated
NIRS_COUNT
#Unit (or description) for the X-axis
reflectance[-]
#Unit (or description) for the Y-axis
wavelength[nm]
#The Number of Polygons
49152
#_ Values for the X-axis (1st column should be '_') ...
_ 2247.88 2224.32 2200.76 2177.20 ...
#Polygon_ID Values for the X-axis ...
1 0.000000 0.000000 0.000000 0.000000 ...
#Continue for all polygones ...
2 0.000000 0.000000 0.000000 0.000000 ...


Notes on Graph Map data


Data set structure

Minimum contents of the data set directory for AiGIS are as follows:

The Shapemodel directory is usually used to place shape models and gird data, but they can be placed outside this directory. Files in MapData and MapDataHigh directories are assumed and try to load as map data for the SHAPE and SHAPEHIGH models respectively.


Items in AiGIS_setting.txt

All items in AiGIS_setting.txt are described in KEY = VALUE style. Multiple VALUES may be assigned in the following format

KEY = VALUE1,VALUE2,VALUE3

History


Contact

Please send your questions and comments to Naru Hirata (naru@u-aizu.ac.jp) or our group mail address (arcspace@u-aizu.ac.jp).


Reference

Hirata N. et al. (2018) AiGIS: A 3D-GIS for Visualization of Map and Shape of Irregular-Shaped Small Bodies, LPS XLIX, Abstract #1849.

Fujii Y. et al. (2007) Visualization Tool for 3D GIS Data, LPS XXXVIII, Abstract #1521.

Hirata N. et al. (2008) A GIS-Oriented Analysis Tool for Irregular Shaped Bodies, LPS XXXIX, Abstract #1584.


Acknowledgements

AiGIS was originally developed as a research project by students at the University of Aizu.

The project is supported by JSPS KAKENHI Grant Number 17K05639 and a collaborative research between JLPEDA/JAXA and the University of Aizu. Aizu Laboratory, Inc. supports development and maintenance of the software.