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copied!<p>You will want to iterate over the obj data looking for 'v's and checking if the following x y and z coordinates and recording the highest and lowest value each time you encounter it. The following code prints out the highest and lowest value for each dimension and then gives you the bounding box from that</p> <pre><code>obj = 'v -5 -5 0 v -5 -5 5 v 0 -5 0 v 0 -5 5 vt 0 0 vt 0 1 vt 1 0 vt 1 1 vn 0 -1 0 vn 0 -1 0 vn 0 -1 0 vn 0 -1 0 f 4/4/4 2/2/2 1/1/1 3/3/3 v 0 -5 0 v 0 -5 5 v 0 0 0 v 0 0 5 vt 0 0 vt 0 1 vt 1 0 vt 1 1 vn 1 0 0 vn 1 0 0 vn 1 0 0 vn 1 0 0 f 8/8/8 6/6/6 5/5/5 7/7/7 v 0 0 0 v 0 0 5 v -5 0 0 v -5 0 5 vt 0 0 vt 0 1 vt 1 0 vt 1 1 vn 0 1 0 vn 0 1 0 vn 0 1 0 vn 0 1 0 f 12/12/12 10/10/10 9/9/9 11/11/11 v -5 0 0 v -5 0 5 v -5 -5 0 v -5 -5 5 vt 0 0 vt 0 1 vt 1 0 vt 1 1 vn -1 0 0 vn -1 0 0 vn -1 0 0 vn -1 0 0 f 16/16/16 14/14/14 13/13/13 15/15/15 v -5 -5 0 v 0 -5 0 v -5 0 0 v 0 0 0 vt 0 0 vt 0 1 vt 1 0 vt 1 1 vn 0 0 -1 vn 0 0 -1 vn 0 0 -1 vn 0 0 -1 f 20/20/20 18/18/18 17/17/17 19/19/19 v -5 -5 5 v -5 0 5 v 0 -5 5 v 0 0 5 vt 0 0 vt 0 1 vt 1 0 vt 1 1 vn 0 0 1 vn 0 0 1 vn 0 0 1 vn 0 0 1 f 24/24/24 22/22/22 21/21/21 23/23/23' elements = obj.split(' ') x_min = 0.0 x_max = 0.0 y_min = 0.0 y_max = 0.0 z_min = 0.0 z_max = 0.0 i = 0 while i < len(elements): if elements[i] == 'v': #find min and max x value if float(elements[i + 1]) < x_min: x_min = float(elements[i + 1]) elif float(elements[i + 1]) > x_max: x_max = float(elements[i + 1]) #find min and max y value if float(elements[i + 2]) < y_min: y_min = float(elements[i + 2]) elif float(elements[i + 2]) > y_max: y_max = float(elements[i + 2]) #find min and max x value if float(elements[i + 3]) < z_min: z_min = float(elements[i + 3]) elif float(elements[i + 3]) > z_max: z_max = float(elements[i + 3]) #incriment the counter int by 4 as we know the next 4 elements are not a vertex i += 4 else: i += 1 print 'x_min = ' + str(x_min) print 'x_max = ' + str(x_max) print 'y_min = ' + str(y_min) print 'y_max = ' + str(y_max) print 'z_min = ' + str(z_min) print 'z_max = ' + str(z_max) print '' print 'x_widh = ' + (str(x_max - x_min)) print 'y_widh = ' + (str(y_max - y_min)) print 'z_widh = ' + (str(z_max - z_min)) </code></pre> <p>And heres the output i get</p> <pre><code>x_min = -5.0 x_max = 0.0 y_min = -5.0 y_max = 0.0 z_min = 0.0 z_max = 5.0 x_widh = 5.0 y_widh = 5.0 z_widh = 5.0 </code></pre> <p>Hope that makes sense</p>

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