def _setup(self) -> None:
"""setup calculation values"""
self.pos_radius = distance(self.center, self.dimlinepos) # type: float
self.radius = distance(self.center, self.start) # type: float
self.start_vector = (self.start -
self.center).normalize() # type: Vec3
self.end_vector = (self.end - self.center).normalize() # type: Vec3
self.start_angle = self.start_vector.angle # type: float
self.end_angle = self.end_vector.angle # type: float
def _get_dimvalue_text(self, section: int) -> str:
"""get the dimension value as text, distance from point1 to point2"""
override = self.text_override[section]
if len(override):
return override
point1, point2 = self._get_section_points(section)
dimvalue = distance(point1, point2) * self.prop("scale")
return self.format_dimtext(dimvalue)
def _draw_extension_lines(self, layout: "GenericLayoutType") -> None:
"""build the extension lines entities"""
dimextlinegap = self.prop("dimextlinegap")
attribs = {
"color": self.prop("dimlinecolor"),
"layer": self.prop("layer"),
}
for dimline_point, target_point in zip(self.dimline_points,
self.measure_points):
if distance(dimline_point, target_point) > max(
dimextlinegap, DIMENSIONS_MIN_DISTANCE):
direction_vector = (target_point - dimline_point).normalize()
target_point = target_point - (direction_vector *
dimextlinegap)
layout.add_line(
start=dimline_point,
end=target_point,
dxfattribs=attribs,
)
def _setup(self) -> None:
self.target_vector = (self.target -
self.center).normalize() # type: Vec3
self.radius = distance(self.center, self.target) # type: float