MiddlePath¶

Declaration¶

class declaracad.occ.draw.MiddlePath(parent=None, **kwargs)[source]¶

Bases: Wire

Create a middle path

Attributes:

activated
axis
bbox
children
color
constructed
description
destroyed
direction
display
edges
initialized
is_destroyed
is_initialized
join_type
line_color
line_style
line_width
material
mode
name
parent
position
proxy
proxy_is_active
reverse
rotation
shapes
solve
surface
texture
tolerance
topology
transparency
wireframe_line_color
x
y
z

Methods

`activate_bottom_up`()	Initialize the proxy on the bottom-up activation pass.
`activate_proxy`()	Activate the proxy object tree.
`activate_top_down`()	Initialize the proxy on the top-down activation pass.
`child_added`(child)	A reimplemented child added event handler.
`child_moved`(child)	A method invoked when a child is moved in the object.
`child_removed`(child)	A reimplemented child removed event handler.
`destroy`()	A reimplemented destructor.
`find`(name[, regex])	Find the first object in the subtree with the given name.
`find_all`(name[, regex])	Find all objects in the subtree with the given name.
`freeze`	Freeze the atom to prevent further modifications to its attributes.
`get_member`	Get the named member for the atom.
`get_value_at`(t[, derivative])	Get the value of the curve derivative at t.
`has_observer`	Get whether the atom has the given observer for a given topic.
`has_observers`	Get whether the atom has observers for a given topic.
`initialize`()	A reimplemented initializer.
`insert_children`(before, insert)	Insert children into this object at the given location.
`members`()	Get the members dictionary for the type.
`notifications_enabled`	Get whether notification is enabled for the atom.
`notify`	Call the registered observers for a given topic with positional and keyword arguments.
`observe`	Register an observer callback to observe changes on the given topic(s).
`parent_changed`(old, new)	A method invoked when the parent of the object changes.
`points_of_discontinuity`([tolerance])	Find points of discontinuity
`render`()	Generates and returns the actual shape from the declaration.
`root_object`()	Get the root object for this hierarchy.
`set_notifications_enabled`	Enable or disable notifications for the atom.
`set_parent`(parent)	Set the parent for this object.
`suppress_notifications`()	Disable member notifications within in a context.
`traverse`([depth_first])	Yield all of the objects in the tree, from this object down.
`traverse_ancestors`([root])	Yield all of the objects in the tree, from this object up.
`unobserve`	Unregister an observer callback for the given topic(s).

join_type
line_style
mode

join_type¶: Joint type for 2d paths.

mode¶: Mode for 2d paths. Normal trims and keep touching edges. No-trim ignores edge parameters. No touching removes edges touching the face edge.

proxy¶: Reference to the implementation control

shapes¶: Must be either empty 1 to 3 elements. The last two elements represent the start and ending faces or wires.

Implementation¶

class declaracad.occ.impl.occ_middle_path.OccMiddlePath[source]¶

Bases: OccWire, ProxyMiddlePath

Attributes:

ais_shape
bilo
curve
declaration
displayed
explorer
face
graph
is_active: Test whether or not the proxy is fully activated.
link
location
reference
shape
tdf_label
topology
viewer

Methods

`activate_bottom_up`()	Activate the proxy tree for the bottom-up pass.
`activate_top_down`()	Activate the proxy for the top-down pass.
`child_added`(child)	Handle a child being added to the object.
`child_removed`(child)	Handle a child being removed from the object.
`child_shapes`()	Iterator of all child shapes
`children`()	Get the child objects for this object.
`create_shape`()	Create the toolkit shape for the proxy object.
`destroy`()	Destroy the proxy and any of its resources.
`freeze`	Freeze the atom to prevent further modifications to its attributes.
`get_first_child`()	Return shape to apply the operation to.
`get_member`	Get the named member for the atom.
`get_transform`()	Create a transform which rotates the default axis to align with the normal given by the position
`has_observer`	Get whether the atom has the given observer for a given topic.
`has_observers`	Get whether the atom has observers for a given topic.
`init_layout`()	Initialize the layout of the toolkit shape.
`init_shape`()	Initialize the state of the toolkit widget.
`members`()	Get the members dictionary for the type.
`notifications_enabled`	Get whether notification is enabled for the atom.
`notify`	Call the registered observers for a given topic with positional and keyword arguments.
`observe`	Register an observer callback to observe changes on the given topic(s).
`parent`()	Get the parent proxy object for this object.
`set_notifications_enabled`	Enable or disable notifications for the atom.
`suppress_notifications`()	Disable member notifications within in a context.
`unobserve`	Unregister an observer callback for the given topic(s).
`update_shape`([change])	Must be implmented in subclasses to create the shape when the dependent shapes change.
`walk_shapes`([ignore_display])	Iterator of all child shapes

clear_focus
ensure_hidden
ensure_visible
extract_edges
focus_next_child
focus_previous_child
get_bounding_box
get_value_at
has_focus
middle_path_2d
middle_path_3d
on_shape_changed
parent_shape
request_relayout
restyle
set_as_wire
set_axis
set_background
set_color
set_direction
set_display
set_enabled
set_focus
set_font
set_foreground
set_join_type
set_line_style
set_line_width
set_maximum_size
set_minimum_size
set_mode
set_position
set_reverse
set_shapes
set_solve
set_status_tip
set_surface
set_texture
set_tool_tip
set_transparency
set_visible

reference¶: Update the class reference

update_shape(change: dict[str, Any] | None = None)[source]¶: Must be implmented in subclasses to create the shape when the dependent shapes change.