title: Best tool to generate STL (3-D geometry file) algorithmically?
body: <p>I have a simple project in mind that would take a long list of triplets as input (coordinates describing a path in 3 dimensions), and generates an STL file as output. (<a href="https://en.wikipedia.org/wiki/STL_%28file_format%29" rel="noreferrer">STL is a file format that describes 3-D surface geometry</a> for use in CAD and 3-D printing applications.)</p>
  
  <p>I'm a scientist, not a developer, and I'm capable with Python, so I can handle parsing an input text file if needed. What I am looking for is a command line utility, library, or simple programming language that can automate a few simple CAD tasks (e.g. extrude a cross section along a path) to create a true 3-D surface for STL output.</p>
  
  <p>Thanks.</p>