1. A method performed by a data processing system and comprising: receiving an object model having a plurality of elements, the elements corresponding to a plurality of points; receiving a selection of a first element and a second element of the plurality of elements; receiving a tolerance; analyzing an intersection between the first element and the second element based on the tolerance and with respect to a specified one of the first element or the second element; classifying the intersection between the first element and the second element based on the analysis; and storing the classification.