Mesh Parser

A Python library for parsing different mesh formats in to a list of points and a list of elements. The element's nodes are identified by indexes into the point list array.

This project uses semantic versioning when versioning the software.

Currently this library supports reading of the following formats:

• stl
• vrml
• vtk

Install

pip install MeshParser

Usage

from meshparser.parser import MeshParser

# It has some tests to determine the file format, if this fails you can set the format to use manually
# using a second argument 'use_parser'.  The 'use_parser' parameter must have one of the values from {'vtk', 'stl', 'vrml'}.
p = MeshParser()
p.parse('file/to/parse')
# get_points has an option to get the pared down points, i.e. all repeated points will be removed.
n = p.get_points()
# get_elements has two options, zero_based: returns point indexes that are zero based [false], pared: remove repeated points [false]
e = p.get_elements()

Advanced usage:

from meshparser.parser import parse_mesh
from meshparser.manipulation import calculate_centre_of_mass, translate, rotate
from meshparser.printer import print_mesh

mesh = parse_mesh('<absolute-path-to-in.stl>')
com = calculate_centre_of_mass(mesh)
mcom = [-val for val in com]
mesh = translate(mesh, mcom)
mesh = rotate(mesh, [1, 0, 0], 90)

print_mesh(mesh, '<absolute-path-to-out.stl>')