LayoutSquasher#

class wattson.analysis.visualization.layout.layout_squasher.LayoutSquasher#

Bases: object

Methods

squash_layout

Compresses a geo-layout while:

squash_layout_deterministic

squash_layout_radial

Radially compresses a geo-layout toward the primary facility while:

squash_layout_radial_non_linear

Radially squash a layout toward the fixpoint.
static squash_layout(neighbors: dict[str, list[str]], rectangles: dict[str, ViewBox], primary_facility: str, aggressiveness_factor: float = 0.5, min_spacing_factor: float = 0.4, iterations: int = 300, geo_weight: float = 0.03, edge_weight: float = 0.15, compression_weight: float = 0.35, damping: float = 0.82, step_size: float = 1.0) → dict[str, tuple[float, float]]#
Compresses a geo-layout while:

  • preserving overall geographic feel

  • avoiding overlaps

  • respecting neighbor connectivity

  • keeping primary facility fixed

Returns:

dict[facility_id] -> (dx, dy)

static squash_layout_radial(neighbors: Dict[str, List[str]], rectangles: Dict[str, ViewBox], primary_facility: str, aggressiveness_factor: float = 0.5, min_spacing_factor: float = 0.15, max_iterations: int = 200, radial_push_step: float = 4.0, outer_boost: float = 1.0) → Dict[str, Tuple[float, float]]#
Radially compresses a geo-layout toward the primary facility while:

  • preserving directional/geographic structure

  • preventing overlaps

  • preserving graph readability

  • keeping the primary facility fixed

Movement is constrained to the original radial direction from the primary facility.

Returns:

dict[facility_id] -> (dx, dy)

Offset relative to original position.

static squash_layout_radial_non_linear(neighbors: dict[str, List[str]], rectangles: dict[str, ViewBox], fixpoint: str, aggressiveness_factor: float = 0.9, inner_deadzone: float = 0.05, outer_boost: float = 2.4) → dict[str, tuple[float, float]]#

Radially squash a layout toward the fixpoint.

Parameters:

  • rectangles – node_id -> (x, y, width, height)

  • neighbors – Included for signature compatibility.

  • fixpoint – Node acting as radial anchor.

  • aggressiveness_factor – Overall squash strength in [0, 1].

  • inner_deadzone – Fraction of max radius where movement is strongly damped.

  • outer_boost – Nonlinear exponent controlling how aggressively outer regions are compressed.

Returns:

Offsets to apply to original rectangle positions.

Return type:

dict[node_id, (dx, dy)]