Step 1 - Input distance
Distance data is obtained by other tools such as yard-tape or rangefinder

Step 2 - Set the top/bottom angle
See through the target by Camera

Step 3 - Calculate height



Additional tree data manually collected
1. Horizontal distance – measured by rangefinder or measuring tape
2. Diameter – measuring tape or trunk caliper
3. Tree name -- Select from list

Operation procedure;
1. Start app, and wait several seconds until GPS location is displayed
2. Tap tree name for selecting species name
(Tree Name list is editable from menu, and direct editing /Android/Data/com.forest.trees/files/forest/Species_Data.txt as well
3. Input Diameter manually
4. Focus on tree top, and tap “Top” for view angle of tree top
5. Focus on center mark with tree bottom, and tap “Bottom” for view angle of tree bottom
(In that time, bearing data and time data is memorized)
6. Tap “Cal” for tree height calculation
7. Check the data, and tap “RECORD” for data recording

Data is stored to Internal storage (Android/Data/com.forest.trees/files/YYYYMMDD_data.csv)

Species List Data is edited by Option Menu - Species Editor