Sets the annotation's x coordinate axis. If set to a x axis id (e.g. *x* or *x2*), the `x` position refers to a x coordinate. If set to *paper*, the `x` position refers to the distance from the left of the plotting area in normalized coordinates where *0* (*1*) corresponds to the left (right). If set to a x axis ID followed by *domain* (separated by a space), the position behaves like for *paper*, but refers to the distance in fractions of the domain length from the left of the domain of that axis: e.g., *x2 domain* refers to the domain of the second x  axis and a x position of 0.5 refers to the point between the left and the right of the domain of the second x axis.

Sets the annotation's x position. If the axis `type` is *log*, then you must take the log of your desired range. If the axis `type` is *date*, it should be date strings, like date data, though Date objects and unix milliseconds will be accepted and converted to strings. If the axis `type` is *category*, it should be numbers, using the scale where each category is assigned a serial number from zero in the order it appears.

Sets the annotation's y coordinate axis. If set to a y axis id (e.g. *y* or *y2*), the `y` position refers to a y coordinate. If set to *paper*, the `y` position refers to the distance from the bottom of the plotting area in normalized coordinates where *0* (*1*) corresponds to the bottom (top). If set to a y axis ID followed by *domain* (separated by a space), the position behaves like for *paper*, but refers to the distance in fractions of the domain length from the bottom of the domain of that axis: e.g., *y2 domain* refers to the domain of the second y  axis and a y position of 0.5 refers to the point between the bottom and the top of the domain of the second y axis.

Sets the annotation's y position. If the axis `type` is *log*, then you must take the log of your desired range. If the axis `type` is *date*, it should be date strings, like date data, though Date objects and unix milliseconds will be accepted and converted to strings. If the axis `type` is *category*, it should be numbers, using the scale where each category is assigned a serial number from zero in the order it appears.