( ESNUG 388 Item 3 ) --------------------------------------------- [02/27/02]
Subject: PhysOpt Rounded Placement Co-ordinates In My Physical Chip Design!
> Here is my problem:
>
> psyn_gui-t> set_cell_location -coord { 129.150 320.210 } cellName
> 1
> psyn_gui-t> report_attrib cellName
>
> ****************************************
> Report : Attribute
> Design : blockName
> Version: 2001.08-SP1-2
>
> Design Object Type Attribute Name Value
> --------------------------------------------------------------------
> blockName cellName cell bounding_box_dim_x1 129149
> blockName cellName cell bounding_box_dim_y1 320210
> blockNamec cellName cell cell_orientation 4
> blockName cellName cell restrictions 2
> 1
>
> The attribute bounding_box_dim_x1 is not the right one. The 1000 coeff is
> OK but I am expecting 129150 ! Any idea ?
>
> - Matt Thieu
> ProXad
From: Muzaffer Kal <muzaffer@dspia.com>
This is either a grid problem or a rounding problem. The cell either can't
be placed at the location you want or the number can't be represented
correctly after doing the multiplication by 1000. Try changing the location
by +-.001 and see if that helps.
- Muzaffer Kal
DSPIA, Inc.
---- ---- ---- ---- ---- ---- ----
From: Matt Thieu <m.r@post.com>
I think it is a rounding problem because if I use:
set_attribute cellName bounding_box_dim_x1 129150
command instead of set_cell_loc, the report_attrib is OK.
- Matt Thieu
ProXad
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