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# Odd looking placement density in designs/nangate45/gcd

Tool: Graphical User Interface

Subcategory: Visualization issue

## Conversation

### oharboe
Run `make designs/nangate45/gcd/config.mk &&  make designs/nangate45/gcd/config.mk gui_final` and enable placement heat map.

This looks odd. There is less going on in the top and right edges, but it still "looks wrong" to me.

Thoughts?

![image](https://github.com/The-OpenROAD-Project/OpenROAD/assets/2798822/532929ca-34bd-4bce-b3b2-df547ff91e26)


### maliberty
It does look a bit odd.  @AcKoucher can you take a look?

### AcKoucher
With nets being draw it's a bit hard to see. I just ran master in nangate45/gcd and as far as I see, everything looks ok.
![image](https://github.com/The-OpenROAD-Project/OpenROAD/assets/104802710/28693f96-c91d-4b92-a1af-4985741156c5)




### AcKoucher
I just realized in the discussion name it says Placement Density, but in your image we see Routing Congestion.