On-Screen Protractor is a simple java application that allows to measure an angle on the screen.
Originally the program was conceived to assess the angle between north and a given point on any map open on the screen, therefore the background of the application window is transparent and the angle is measured from the positive y-axis and clockwise. The application allows to move the origin of reference axes and to rotate the axes as needed.

OnScreenProtractor works correctly only in Windows context.
In linux 'OnScreenProtractor_v0.6.exe' can be started with 'Wine'

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License

GNU General Public License version 3.0 (GPLv3)

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User Reviews

  • Fantastic program! Literally a few options are missing: -the ability to manually type in an angle such as AOB and show it on the screen -the possibility to enter manually the length of the segment OA or OB -Setting the degree increments every how much to change manually e.g. every 0.01 degree, every 0.1 degree , 1 degree etc.
  • I appreciate the effort of the author in producing this app, but it's a substantial obstacle that AVG treats it as a trojan: "We've safely aborted connection on kumisystems.dl.sourceforge.net because it was infected with Java:Malware-gen [Trj]". If this can be fixed, I'd love to give it another go.
  • Instructions inadequate. When I try to follow the meagre instructions, it asks for a folder on startup, but why does it want a folder? No hint in the README file. When I select an arbitrary folder, it just keeps extracting over again, can't get the app to work at all. Useless waste of time. Is this a scam? I don't see any replies to similar bad reviews, apparently the developer doesn't care. I suspect the good reviews are fake.
  • Really simple app that does the intended job perfectly (on Windows 11). Simple yet plenty of tweaks (font, lines shown, etc.) A great way to measure, with reasonable accuracy, bearings from a point on a map. Thank you for writing this and making available free of charge to others.
  • Great program. Our precast takeoff program removed their on screen protractor option to redevelop. This saved me from process headaches and wasted time. Need to find a way to save line & text color preferences. Any suggestions?
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Additional Project Details

Operating Systems

Windows

Languages

Italian, English

User Interface

Java Swing

Programming Language

Java

Related Categories

Java Topic Software, Java Test and Measurement Software

Registered

2012-08-18