planegcs 0.1.1

Python bindings for FreeCAD's PlaneGCS 2D geometric constraint solver

planegcs

Python bindings for FreeCAD's PlaneGCS 2D geometric constraint solver.

Installation

pip install planegcs

Quick Start

from planegcs import Sketch, SolveStatus

s = Sketch()

# Create three points for a triangle
p1 = s.add_point(0, 0)
p2 = s.add_point(5, 0)
p3 = s.add_point(2.5, 4)

# Create lines
l1 = s.add_line(p1, p2)
l2 = s.add_line(p2, p3)
l3 = s.add_line(p3, p1)

# Make it equilateral
s.equal_length(l1, l2)
s.equal_length(l2, l3)

# Fix first point and make base horizontal
s.fix_point(p1, 0, 0)
s.horizontal(l1)

# Fix the side length to 5
d = s.add_param(5.0)
s.p2p_distance(p1, p2, d)

# Solve
status = s.solve()
assert status == SolveStatus.Success

# Read results
print(s.get_point(p1))  # (0.0, 0.0)
print(s.get_point(p2))  # (5.0, 0.0)
print(s.get_point(p3))  # (~2.5, ~4.33)

License

LGPL-2.1-or-later (same as the FreeCAD source code it wraps).