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*Subject*: MINIMUM DISTANCE BETWEEN TWO CURVES*From*: "Mark C." <mychan(at)petro-canada.ca>*Date*: Thu, 22 Jun 2000 20:43:26 -0600*Newsgroups*: comp.lang.idl-pvwave*Organization*: CADVision Development Corporation (http://www.cadvision.com/)*Reply-To*: "Mark C." <mychan(at)petro-canada.ca>*Xref*: news.doit.wisc.edu comp.lang.idl-pvwave:20042

Given: a=f(x,y,z) and b=g(x,y,z), both a and b are separate curves. (Not straight lines. Nor do they loop over themselves). f and g are unknown functions. Only know g and f by some points in 3D space. Points are irregularly spaced. Objective: Find the minimum distance between a and b. Give the coordinate where this minimum occurs in term of the nearest point on a and the nearest point on b. Needs help: Does anyone have a routine to do such calculation using IDL? Any other suggestions appreciated. Thanks in advance, Mark Chan

**Follow-Ups**:**Re: MINIMUM DISTANCE BETWEEN TWO CURVES***From:*Pavel Romashkin

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