how to assign pads to a sub-block layout.

Dear all, here comes a trouble when I am doing rectilinear floor planning using Astro.
I need to assign both PADs and pins to a T-shaped rectilinear floorplan, which is a sub-block of a design, but the PADs are not placed properly when I initialized floorplan, Could anyone give me some advice ?
or some instruction on the full-chip layout design?

Could anyone give me some help ?or anything about the hierarchical floorplan or the layout of IP with PADs?
Thanks in advance！

ICC中-side选项吧

Thank you very much, we planned to implement the layout using Astro at this stage since we are not very familiar with ICC.
And, I have communicated with an engineer of synopsys, they suggest to place the PADs manually, treating the PAD as normal macros.

very easy, place the PADS manually,
you are in shanghai ? we can help you on site ,

Thank icfbicfb very much, as what you have said, the PAD couldbe modified manually.
however,when I try to assign the Pins by loading the TDF files, Astro give the Error info as shown below:
INFO: point set is clockwise
INFO: top boundary has 8 sides
INFO: 0 IO pins considered in design
INFO: there is no valid pins to work on
ERROR: rectilinear pin initial placement failed.
all of the Pins couldn't be placed, for example, clk_osc, which comes from the analog block, serves as an input port in the top module of the digital block, when I loaded the netlist, Astro gives the following Warnings:
WARNING : boundary port clk_osc has no pin
treat net clk_osc as pseudo net and mark it dont_touch
Any help?
thanks in advance！

as for rectilinear floorplan ,please use axgRectiPlanner，
orcreate boundary yourself,like geAddRectilinearBoundary ,
axgRectiPlanner
setFormField "Rectilinear Floor Planning" "Mode" "Enter Boundary"

Thanks, info. given above is right from axgRectiPlanner.
I remember in ICC, floating Pins should set some constraints, and is this needed in Astro?

yes , intdf file , can set som constraints ,

Thanks