revcloud.py

# Copyright (c) 2024, Manfred Moitzi
# License: MIT License
from pathlib import Path
import ezdxf
from ezdxf import revcloud

CWD = Path("~/Desktop/Outbox").expanduser()
if not CWD.exists():
    CWD = Path(".")


def revcloud_manually():
    doc = ezdxf.new()
    msp = doc.modelspace()

    # These conditions must be met to create a true REVCLOUD representation:
    # - bulge value is 0.520567050552
    # - LWPOLYLINE closed flag must be set
    # - XDATA "RevcloudProps" must be present

    length = 0.1
    lw_points = revcloud.points(
        [(0, 0), (1, 0), (1, 1), (0, 1)],
        segment_length=length,
        bulge=0.52056705,
        start_width=0.01,
        end_width=0,
    )
    lwp = msp.add_lwpolyline(lw_points, close=True)
    lwp.set_xdata("RevcloudProps", [(1070, 0), (1040, length)])
    doc.appids.add("RevcloudProps")
    doc.saveas(CWD / "revcloud-manually.dxf")


def revcloud_entity():
    doc = ezdxf.new()
    msp = doc.modelspace()

    revcloud.add_entity(msp, [(0, 0), (1, 0), (1, 1), (0, 1)], segment_length=0.1)
    doc.saveas(CWD / "revcloud-entity.dxf")

def revcloud_reverse_entity():
    doc = ezdxf.new()
    msp = doc.modelspace()

    revcloud.add_entity(msp, [(0, 0), (0, 1), (1, 1), (1, 0)], segment_length=0.1)
    doc.saveas(CWD / "revcloud-reverse-entity.dxf")


if __name__ == "__main__":
    revcloud_manually()
    revcloud_entity()
    revcloud_reverse_entity()