Geo Protractor

Measure Angles on the GeoSphere with Augmented Reality.

Geo Protractor - Augmented Reality Angle Measurement

"Geo Protractor" is an Android app that allows users to measure angles between two points on the geo sphere using augmented reality. By utilizing device sensors like the accelerometer, gyroscope, or magnetic field sensor, the app displays a sphere with azimuth and elevation lines over the camera view. Users can place markers to see the angle needed to rotate between points, as well as the difference in azimuth and elevation. Please note that the measurements are for indication only due to potential sensor inaccuracies.
Install from Google Play Store

App stats

By: keuwlsoft
Users: 10,032
7
Version: VARY (Last updated: 2024-02-21)
Creation date: 2016-10-14
Permissions
Camera: take pictures and videos

Ranking

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App summary

Measure angles between two points on the geo sphere with the camera and augmented reality.

Device orientation is obtained with the accelerometer and gyroscope, or with the accelerometer and magnetic field sensor. Each method has advantages and disadvantages and can be selected with the gyro or magnet buttons (only if your device has the necessary sensors detected).

A sphere with azimuth and angle of elevation lines is shown overlaying the camera view.
Two positions can be set putting markers onto the view. The angle required to rotate from one to the other is shown, as is the difference in azimuth and angle of elevation between the two points.

For Indication Only. Note that in gyroscope mode, the azimuth will drift slowly. In magnetic mode, the Earths magnetic field can be distorted by nearby metallic objects and give incorrect azimuth readings. For Indication Only.

User reviews

These summaries are automatically generated weekly using AI based on recent user reviews. Google Play Store does not verify user reviews, so some user reviews may be inaccurate, spammy, or outdated.
Pros
  • Useful for drone preflight and planning
  • Other features work very well
  • Developers are praised for their passion for maths, science, and gadgets
Cons
  • Does not work on newer Android versions, particularly after upgrading to Android Pie
  • Issues with magnetic sensor initialization
  • Blank camera screen and improper rendering on certain devices
Most mentioned
  • Problems with the magnetic sensor
  • App functionality diminished after Android Pie upgrade
  • Camera view overlay blocking controls
User reviews
Does not work. Also cannot r ad Samsung magnetometer. Need azimuth offset input Need true values
by George, 2024-05-18

Need azimuth offset input Need true values
by George Blom, 2024-05-18

..as a longterm fan of Keuwl (line) i'm sad that with the switch of the Phone this app started to missbehave.. PNG (alpha) Geo Overlay is not redered, instead RAW output from Rear Camera is shown.. I may falsely suppose the problem is in .renderer.camera class but pls release Screen Ratio fix for non 16:9 devices.. thnx.. 1920 x 1080 is a 16:9 21:9 ("Twenty One by Nine") is a consumer electronics (CE) marketing term to describe the ultrawide aspect ratio.. source: wikipedia
by Martin Vizar, 2023-04-15
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