def get_pt(self, viewer, points, pt, canvas_radius=None):
        """Takes an array of points `points` and a target point `pt`.
        Returns the first index of the point that is within the
        radius of the target point.  If none of the points are within
        the radius, returns None.
        """
        if canvas_radius is None:
            canvas_radius = self.cap_radius

        if hasattr(self, 'rot_deg'):
            # rotate point back to cartesian alignment for test
            ctr_pt = self.get_center_pt()
            pt = trcalc.rotate_coord(pt, [-self.rot_deg], ctr_pt)

        res = self.within_radius(viewer, points, pt, canvas_radius)
        return np.flatnonzero(res)
def get_pt ( self , viewer , points , pt , canvas_radius = None ) : if canvas_radius is None : canvas_radius = self . cap_radius if hasattr ( self , 'rot_deg' ) : ctr_pt = self . get_center_pt ( ) pt = trcalc . rotate_coord ( pt , [ - self . rot_deg ] , ctr_pt ) res = self . within_radius ( viewer , points , pt , canvas_radius ) return np . flatnonzero ( res )
Takes an array of points `points` and a target point `pt`.
        Returns the first index of the point that is within the
        radius of the target point.  If none of the points are within
        the radius, returns None.