Function are_neighbors

src/table.py:2266–2296

Detect whether r1, r2 are neighbors. Defined as: The minimum distance between points of r1 and points of r2 is not larger than some delta. This check supports empty rect-likes and thus also lines. Note: This type of check is MUCH faster than native

(r1, r2)

        clip = prect

    def are_neighbors(r1, r2):
        """Detect whether r1, r2 are neighbors.

        Defined as:
        The minimum distance between points of r1 and points of r2 is not
        larger than some delta.

        This check supports empty rect-likes and thus also lines.

        Note:
        This type of check is MUCH faster than native Rect containment checks.
        """
        if (  # check if x-coordinates of r1 are within those of r2
            r2.x0 - snap_x <= r1.x0 <= r2.x1 + snap_x
            or r2.x0 - snap_x <= r1.x1 <= r2.x1 + snap_x
        ) and (  # ... same for y-coordinates
            r2.y0 - snap_y <= r1.y0 <= r2.y1 + snap_y
            or r2.y0 - snap_y <= r1.y1 <= r2.y1 + snap_y
        ):
            return True

        # same check with r1 / r2 exchanging their roles (this is necessary!)
        if (
            r1.x0 - snap_x <= r2.x0 <= r1.x1 + snap_x
            or r1.x0 - snap_x <= r2.x1 <= r1.x1 + snap_x
        ) and (
            r1.y0 - snap_y <= r2.y0 <= r1.y1 + snap_y
            or r1.y0 - snap_y <= r2.y1 <= r1.y1 + snap_y
        ):
            return True
        return False

    def clean_graphics(npaths=None):
        """Detect and join rectangles of "connected" vector graphics."""