DRC - How to obtain the length of one Box from multiple Boxes

Apple

Hi
In layer1/0, I have many shapes, namely polygons and boxes. All the boxes are of the same size and they are all squares. How can I obtain the side length of a box, such as the side length of the box in the red frame?

Matthias

You cannot directly. DRC is for checking thresholds, not for measuring.

You can iterate the objects in a layer:

layer = ... # a polygon layer
layer.each do |poly|
  .. do something with poly ..
end

"poly" will be a DPolygon object (https://www.klayout.de/doc-qt5/code/class_DPolygon.html).

The reverse of "each" is "insert":

# creates a new, empty polygon layer
layer = polygons

# adds a polygon to that layer
poly = ... # a DPolygon object
layer.insert(poly)

This basically allows you to create custom DRC functions. But those will not be very efficient as they are executed inside the script engine.

Matthias