Angular dimensioning

[sunblog3]

Try to write code

dim = msp.add_radius_dim(
    center=(0, 0),
    radius=2.5,
    angle=45,
    dimstyle="EZ_RADIUS"
)

Result error

  File "D:\venv\Lib\site-packages\ezdxf\disassemble.py", line 596, in to_primitives
    for e in entities:
  File "D:\venv\Lib\site-packages\ezdxf\disassemble.py", line 579, in recursive_decompose
    yield from recursive_decompose(virtual_entities(entity))
  File "D:\venv\Lib\site-packages\ezdxf\disassemble.py", line 568, in recursive_decompose
    for entity in entities:
  File "D:\venv\Lib\site-packages\ezdxf\entities\dimension.py", line 806, in __virtual_entities__
    dim_elevation = self.dxf.text_midpoint.z
                    ^^^^^^^^^^^^^^^^^^^^^^^^
AttributeError: 'NoneType' object has no attribute 'z'

[mozman]

This isn't the full context, but I'm assuming you forgot to render the DIMENSION entity.

From the radial dimension tutorial:

import ezdxf

doc = ezdxf.new("R2010", setup=True)

msp = doc.modelspace()
msp.add_circle((0, 0), radius=3)
dim = msp.add_radius_dim(center=(0, 0), radius=3, angle=45, dimstyle="EZ_RADIUS")
dim.render()  # <---- VERY VERY VERY important step!!!!!!!!!
doc.saveas("radius_dimension.dxf")

For more information read the tutorials about linear DIMENSION and radial DIMENSION.

[sunblog3]

Ok, thank you very much