zRuler - The Smart Zoom Camera Ruler Version 1.0 iPhone 4


Device: iOS iPhone
Category: Utilities
Price: $.99 -> Free, Version: Version 1.0 iPhone 4 (iTunes)

Description:

The zRuler v 1.0 or Smart Zoom Camera Ruler has been developed to enable iPhone users to measure directly distances between 15 cm (~ 5.9 in ) and 100 cm (39.4 in) without using tricks or other intermediary references.How to measure:- Run the full calibration process.- Place the iPhone with the display up with the lower edge at one end of the distance to measure.- Keeping the lower edge of the iPhone touching the surface to measure, gently raise the upper edge by rotating the device around the lower edge.- Aim the crosshairs on the upper section of the screen to the end of the distance you intend to measure.- Wait until the distance reading below crosshairs stabilizes.- Press the "Measure" button to retain the reading.To the moment zRuler v1.0 measures fairly accurately distance up to 60 cm and distances up to 100 cm with up to 5% margin error.zRuler v1.0 also works best if the lower edge of the iPhone is horizontal.The measurement accuracy depends also on a clear focus of the distant end of the distance to measure and constant illumination.Further versions will bring max length measurement up to 10 m (~ 33 feet), automatic calibration and measurement.Very important: Due to the fact that this software uses the configuration of the case of the device the current version of the zRuler is designed only for iPhone 4. A version for iPhone 3GS is under development. Due to the specific use of iPad the iPad version will be decided later. App reviews will be taken into consideration.

zRuler - The Smart Zoom Camera Ruler



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