bounding

how do I find the angle of rotation of the major axis of an ellipse given its bounding rectangle?

I have an ellipse centered at (0,0) and the bounding rectangle is x = [-5,5], y = [-6,6]. The ellipse intersects the rectangle at (-5,3),(-2.5,6),(2.5,-6),and (5,-3) I know nothing else about the ellipse, but the only thing I need to know is what angle the major axis is rotated at. seems like the answer must be really simple but I'm ju...

Bounding ellipse

I have been given an assignement for a graphics module, one part of which is to calculate the minimum bounding ellipse of a set of arbitrary shapes. The ellipse doesn't have to be axis aligned. This is working in java (euch) using the AWT shapes, so I can use all the tools shape provides for checking containment/intersection of objects....

PHP Library: Calculate a bounding box for a given lat/lng location

I'm looking for a PHP Library / PHP Script that allows me to calculate an accurate bounding box for a given center point (lat/lon). Using an ellipsoid formula (f.ex. WGS84) would be great. I know, there have to be a library but I'm not able to find one. ...

Twitter stream bounding box - how to cover London/UK

I'm attempting to stream Tweets from the UK as a whole, using Twitters stream API, however I'm having trouble with my bounding box. The LAT/LON pairs I'm using to define a bounding box of the whoe UK(Ire included) is as follows. -9.05, 48.77, 2.19, 58.88 However when I try to use this with the Twitter stream API, it states the follow...

Bounding this program to determine the sum of reciprocal integers not containing zero

Let A denote the set of positive integers whose decimal representation does not contain the digit 0. The sum of the reciprocals of the elements in A is known to be 23.10345. Ex. 1,2,3,4,5,6,7,8,9,11-19,21-29,31-39,41-49,51-59,61-69,71-79,81-89,91-99,111-119, ... Then take the reciprocal of each number, and sum the total. How can this ...

Bounding box boolean subtraction?

What's the best or an efficient method for subtracting a bounding box from another bounding box (I.e. Creating n bounding boxes from a bounding box Boolean subtraction)? Ideally the resulting bounding boxes are as square as possible so that there are limited 'shard' (I.e. 1width, 1height, 100depth). ...