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How to regularly divide a circle in equal parts around a square object.?
for the purpose of capturing a 3d image of an object, i need to take 20 pictures from equal distance around the object.
the object is a large statue (8m high) on a square foot.
how can i easily do the following:
1. determine an even circle with the statue in the middle
2. determine angles equal 18 degree intervals
3. determine angles at equal 36 degree intervals.
i thought about using a rope to draw a circle, but i have no centre to attach the rope to.
this is the object i intend to capture:
1 Answer
- supastremphLv 66 years ago
Easily? If you are far enough away, taking equal distances to the base of the statue is roughly the same distance, and probably close enough to anything you will achieve "easily". Otherwise you will need to use a spreadsheet and determine the points via geometry. If a side of the square pedestal is L, the largest error you will incur from the first recommendation is ~.2L, so if you are 10L away from the statue, this is an error of only 2%. Obviously if you have a zoom lens you can make the most of this. The easiest thing to do to determine the angles would be to use a sighting compass. Take a bearing on the statue, move to until the bearing is 18degrees different, repeat.
