def add_line(self,
start: 'Vertex',
end: 'Vertex',
dxfattribs: dict = None,
remove_hidden_lines=False) -> None:
"""
Add a LINE entity to the dimension BLOCK. Removes parts of the line hidden by dimension text if
`remove_hidden_lines` is True.
Args:
start: start point of line
end: end point of line
dxfattribs: additional or overridden DXF attributes
remove_hidden_lines: removes parts of the line hidden by dimension text if True
"""
def add_line_to_block(start, end):
self.block.add_line(to_ocs(start).vec2,
to_ocs(end).vec2,
dxfattribs=dxfattribs)
def order(a: Vec2, b: Vec2) -> Tuple[Vec2, Vec2]:
if (start - a).magnitude < (start - b).magnitude:
return a, b
else:
return b, a
to_ocs = self.ucs.to_ocs
attribs = self.default_attributes()
if dxfattribs:
attribs.update(dxfattribs)
text_box = self.text_box
if remove_hidden_lines and (text_box is not None):
start_inside = int(text_box.is_inside(start))
end_inside = int(text_box.is_inside(end))
inside = start_inside + end_inside
if inside == 2: # start and end inside text_box
return # do not draw line
elif inside == 1: # one point inside text_box or on a border line
intersection_points = text_box.intersect(
ConstructionLine(start, end))
if len(intersection_points) == 1:
# one point inside one point outside -> one intersection point
p1 = intersection_points[0]
else:
# second point on a text box border line
p1, _ = order(*intersection_points)
p2 = start if end_inside else end
add_line_to_block(p1, p2)
return
else:
intersection_points = text_box.intersect(
ConstructionLine(start, end))
if len(intersection_points) == 2:
# sort intersection points by distance to start point
p1, p2 = order(intersection_points[0],
intersection_points[1])
# line[start-p1] - gap - line[p2-end]
add_line_to_block(start, p1)
add_line_to_block(p2, end)
return
# else: fall trough
add_line_to_block(start, end)