pylabrobot.resources.PlateHolder.assign_child_by_anchor#

PlateHolder.assign_child_by_anchor(resource: Resource, parent_anchor: tuple[str, str, str] | str = ('l', 'f', 'b'), child_anchor: tuple[str, str, str] | str = ('l', 'f', 'b'), reassign: bool = True)#

Assign a child resource by aligning anchor points.

This method computes the location needed to align the specified anchor points of the parent and child resources, then calls assign_child_resource() with the computed location.

Parameters:

  • resource (Resource) – The resource to assign.

  • parent_anchor (tuple[str, str, str] | str) – Anchor specifiers for the parent. Can be either: - A tuple of (x, y, z) strings, or - A 3-character string (e.g., “lfb” for left-front-bottom) Each element can be: x: "l"/"left", "c"/"center", or "r"/"right" y: "b"/"back", "c"/"center", or "f"/"front" z: "t"/"top", "c"/"center", or "b"/"bottom" Defaults to left-front-bottom.

  • child_anchor (tuple[str, str, str] | str) – Anchor specifiers for the child (same format as parent_anchor). Defaults to left-front-bottom.

  • reassign (bool) – If False, an error will be raised if the resource to be assigned is already assigned to this resource. Defaults to True.

Examples

Align left-front-bottom (default behavior):

>>> parent = Resource("parent", size_x=100, size_y=100, size_z=10)
>>> child = Resource("child", size_x=80, size_y=80, size_z=5)
>>> parent.assign_child_by_anchor(child)  # Both default to LFB

Align the center-center-bottom using tuple syntax:

>>> parent.assign_child_by_anchor(child, parent_anchor=("c", "c", "b"),
...                               child_anchor=("c", "c", "b"))

Align the center-center-bottom using string syntax:

>>> parent.assign_child_by_anchor(child, parent_anchor="ccb", child_anchor="ccb")

Stack on top by aligning parent’s top with child’s bottom:

>>> parent.assign_child_by_anchor(child, parent_anchor="lft", child_anchor="lfb")