def add_multi_field(
layout,
location: Vec3,
values: List[float],
color=FILL_COLOR,
*,
size=1.0,
layer="0",
):
# make n strips with explicit transparency values
width = size / len(values)
height = size
offset = Vec3(width, 0)
pos = location
for transparency in values:
layout.add_solid(
solid_vertices(pos, width, height),
dxfattribs={
"color": color,
"layer": layer,
"transparency": colors.float2transparency(transparency),
},
)
pos += offset
add_frame(layout, location, size, size)
def items(self, default_values=False) -> List[Tuple[str, Any]]:
"""Returns the DXF attributes as list of name, value pairs, returns
also the default values if argument `default_values` is ``True``.
The true_color and transparency attributes do not have default values,
the absence of these attributes is the default value.
"""
data: List[Tuple[str, Any]] = []
if default_values or self._layer != DEFAULT_LAYER:
data.append(("layer", self._layer))
if default_values or self._aci_color != DEFAULT_ACI_COLOR:
data.append(("color", self._aci_color))
if self._true_color is not None:
# absence is the default value
data.append(("true_color", colors.rgb2int(self._true_color)))
if default_values or self._linetype != DEFAULT_LINETYPE:
data.append(("linetype", self._linetype))
if default_values or self._lineweight != DEFAULT_LINEWEIGHT:
data.append(("lineweight", self.lineweight))
if self._transparency is not None:
# absence is the default value
if self._transparency == TRANSPARENCY_BYBLOCK:
data.append(("transparency", colors.TRANSPARENCY_BYBLOCK))
else:
data.append(
(
"transparency",
colors.float2transparency(self._transparency),
)
)
if default_values or self._ltscale != DEFAULT_LTSCALE:
data.append(("ltscale", self._ltscale))
return data
def transparency(self, value: float) -> None:
# create AppID table entry if not present
if self.doc and AcCmTransparency not in self.doc.appids:
self.doc.appids.new(AcCmTransparency)
if 0 <= value <= 1:
self.discard_xdata(AcCmTransparency)
self.set_xdata(AcCmTransparency,
[(1071, clr.float2transparency(value))])
else:
raise ValueError('Value out of range (0 .. 1).')
def transparency(self, transparency: float) -> None:
""" Set transparency as float value between 0 and 1, 0 is opaque and 1
is 100% transparent (invisible).
"""
self.dxf.set('transparency', clr.float2transparency(transparency))
def test_transparency_descriptor_exists(self, entities: EntityQuery):
assert (len(entities.transparency == colors.float2transparency(0)) == 0
), "has no default value"
def test_float_to_transparency(t_int, t_float):
assert colors.float2transparency(t_float) == t_int