How can I calculate the number of standard cells in a window

[b224hisl]

Excuse me, I would like the get the number of std cells of at a certain window. That what I have done in the gui:

1. First only the std cells can be selected:
   

2. Hightlight some cells:
   
   

3. Then I can get the number through this:
   
   it's 332

But how can I make it by writing a script to set a range of coordinates and get the number of std cells. I found there is a 'select' command. I think what a gui can do should be done by a script. Can anyone give me a hand?

[maliberty]

There is a select command but it doesn't have a "by area" option currently. Having selected you can use gui::select_next to iterate through.

The simplest is to just walk the db directly. Something like:

set count 0
set block [ord::get_db_block]
foreach inst [$block getInsts] {
  set bbox [$inst getBBox]
  if { [$bbox xMin] >= 100 && [$bbox xMax] <= 10000 &&
       [$bbox yMin] >= 100 && [$bbox yMax] <= 10000} {
    incr count
  }
}

puts "Found $count"

[maliberty]

Note the units will be DBU not microns

[b224hisl]

OK fine， thank you very much~