Fig. 2 Base map information viewer, town character _ representative point display

We experienced the restoration of heavy rain last July and reaffirmed the effectiveness of the expressive power of map information.
In preparation for natural disasters, we are trying to create a convenient map close to the area.

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At first we try the following geographic information system (GIS) which can be used free of charge by user registration.

- Base map information download service (Base map information viewer)
          https://fgd.gsi.go.jp/download/documents.html

- Basic map information site of Geographical Survey Institute
          http://www.gsi.go.jp/kiban/index.html

Next, we tried GIS (QGIS), a free and open source geographic information system Quantum.
          https://www.qgis.org/ja/site/

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【Example of trial】

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Step 1 Download the base map information viewer (software) from the base map information download service of GSI

        Fig. 1 Start base map information viewer

Step 2 Download the geographical information of the area from Geographical Survey Institute's base map information site

Step 3 Execute the base map information viewer to read the geographical information and display the map

         Fig. 2 Base map information viewer, town character _ representative point display

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Step 4 Display the distance and area of the nearby square in the base map information viewer

        Fig. 3 Measurement example of distance and area with the base map information viewer

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Step 5 Convert to a standard format shp file as a layer in the base map information viewer

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Step 6 Load the shp file with QGIS and map the area

        Fig. 4 Example of reading vector data shp file with QGIS
 

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