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With this application, you can create the design data required for positioning with the field application "Rakusumi" from CAD drawings.

◆Anyone can easily create the coordinate data necessary for positioning with just a tap on a smartphone

You can create the coordinate data required when using Topcon's positioning system "Rakusho" and "LN-150 Pile Navi" at construction sites with simple operations on your smartphone or tablet.

◆ Connecting the site and design “easily” “3 easy steps with your smartphone!”
Step1: Import drawing data (DXF format)
Step2: Tap the point you want to locate
Step3: Load the data created in Rakuza into Rakubumi and start positioning!

◆Using Rakuza, you can do the following:
- Reading and viewing 2D CAD data (DXF format)
- Coordinate transformation for measurement
- Extraction and registration of measurement points
- Output of design data (CSV format)

◆Recommended for these people
- I don't know the "coordinate" data
- Want to save labor at construction sites with the latest positioning and surveying equipment
- I want to perform accurate positioning according to the drawing.
- Want to advance DX on-site and graduate from paper drawings
- I want to work on site or on the go instead of in the office.


This app does not support reading files other than the target DXF versions listed below. Additionally, files that include unsupported shapes may display differently than they do in the CAD software.

Target DXF version:
+AC1032 (AutoCAD 2018 format)
+AC1027 (AutoCAD 2013 format)
+AC1009 (AutoCAD R12/LT2 format)

Recommended operating environment:
+Android 8.0 or higher
+RAM 4GB or more
It does not work on 32-bit versions of Android devices.
Please note that we cannot guarantee operation on all devices.

Operation confirmed models:
+Pixel 6
+Galaxy S9
+Galaxy S10