Method _findFromPoint

cadquery/cq.py:1332–1366

Finds the start point for an operation when an existing point is implied. Examples include 2d operations such as lineTo, which allows specifying the end point, and implicitly use the end of the previous line as the starting point :return: a Vector represent

(self, useLocalCoords: bool = False)

        return ns

    def _findFromPoint(self, useLocalCoords: bool = False) -> Vector:
        """
        Finds the start point for an operation when an existing point
        is implied.  Examples include 2d operations such as lineTo,
        which allows specifying the end point, and implicitly use the
        end of the previous line as the starting point

        :return: a Vector representing the point to use, or none if
        such a point is not available.

        :param useLocalCoords: selects whether the point is returned
        in local coordinates or global coordinates.

        The algorithm is this:
            * If an Edge is on the stack, its end point is used.yp
            * if a vector is on the stack, it is used

        WARNING: only the last object on the stack is used.

        """
        obj = self.objects[-1] if self.objects else self.plane.origin

        if isinstance(obj, Edge):
            p = obj.endPoint()
        elif isinstance(obj, Vector):
            p = obj
        elif isinstance(obj, Vertex):
            p = obj.Center()
        else:
            raise ValueError(f"Cannot convert object type {type(obj)} to vector.")

        if useLocalCoords:
            return self.plane.toLocalCoords(p)
        else:
            return p

    def _findFromEdge(self, useLocalCoords: bool = False) -> Edge:
        """