Abstract:

According to the principle of virtual angle gauge,this article implements the virtual angle gauge on MIUI 3 and Meizu MX2 mobile phones.And it has been integrated in an android-based sub-compartment tree measurement data recording and processing APP program.This APP provides a convenient tool for sub-compartment tree measurement work,and uses touch screen to achieve free hand curve plotting on the measurement data scatter diagram .In order to summarize and process follow-up forestry data conveniently,this article also develops a Windows desktop application which could collaborate with the APP.

Key words: virtual angle gauge, free hand curve, tree measurement, sub-compartment survey, data collection and processing