Method get_bounds

folium/features.py:1088–1121

Computes the bounds of the object itself (not including it's children) in the form [[lat_min, lon_min], [lat_max, lon_max]]

(self)

        super().render(**kwargs)

    def get_bounds(self) -> TypeBoundsReturn:
        """
        Computes the bounds of the object itself (not including it's children)
        in the form [[lat_min, lon_min], [lat_max, lon_max]]

        """
        if not self.embed:
            raise ValueError("Cannot compute bounds of non-embedded TopoJSON.")

        xmin, xmax, ymin, ymax = None, None, None, None

        for arc in self.data["arcs"]:
            x, y = 0, 0
            for dx, dy in arc:
                x += dx
                y += dy
                xmin = none_min(x, xmin)
                xmax = none_max(x, xmax)
                ymin = none_min(y, ymin)
                ymax = none_max(y, ymax)
        return [
            [
                self.data["transform"]["translate"][1]
                + self.data["transform"]["scale"][1] * ymin,  # noqa
                self.data["transform"]["translate"][0]
                + self.data["transform"]["scale"][0] * xmin,  # noqa
            ],
            [
                self.data["transform"]["translate"][1]
                + self.data["transform"]["scale"][1] * ymax,  # noqa
                self.data["transform"]["translate"][0]
                + self.data["transform"]["scale"][0] * xmax,  # noqa
            ],
        ]


class GeoJsonDetail(MacroElement):