Transform¶

No example available.

Declaration¶

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

Bases: Operation

An operation that Transform’s an existing shape (or a copy). If no operations are given it will align along the axis defined by the position direction and rotation.

Attributes:

shape: Shape or None: Shape to transform. If none is given it will use the first child. If given it will make a transformed copy the reference shape.
mirror: Tuple or List: Mirror transformation to apply to the shape. Should be a list for each axis (True, False, True).
scale: Tuple or List: Scale to apply to the shape. Should be a list of float values for each axis ex. (2, 2, 2).
rotate: Tuple or List: Rotation to apply to the shape. Should be a list of float values (in radians) for each axis ex. (0, math.pi/2, 0).
translate: Tuple or List: Translation to apply to the shape. Should be a list of float values for each axis ex. (0, 0, 100).

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.
`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.
`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).

Examples

Transform:: operations = [Rotate(direction=(1, 0, 0), angle=math.pi/4)] Box: box:

pass

#: Or Cylinder: cyl

pass

Transform:

#: Create a copy and move it shape = cyl operations = [

Translate(x=10, y=20, z=0), Scale(s=2), Rotate(direction=(0,0,1), angle=math.pi/2)

]

operations¶: Transform ops

proxy¶: Reference to the implementation control

shape¶: Shape to transform if none is given the first child will be used

Implementation¶

class declaracad.occ.impl.occ_transform.OccTransform[source]¶

Bases: OccOperation, ProxyTransform

Attributes:

ais_shape
declaration
displayed
is_active: Test whether or not the proxy is fully activated.
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
focus_next_child
focus_previous_child
get_bounding_box
has_focus
on_shape_changed
parent_shape
request_relayout
restyle
set_axis
set_background
set_color
set_direction
set_display
set_enabled
set_fix
set_focus
set_font
set_foreground
set_maximum_size
set_minimum_size
set_mirror
set_operations
set_position
set_rotate
set_scale
set_shape
set_status_tip
set_texture
set_tool_tip
set_translate
set_transparency
set_visible

get_transform()[source]¶

Create a transform which rotates the default axis to align with the normal given by the position

Returns:

transform: gp_Trsf

reference¶: Class reference url

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