Via to Via (Spacing)

Reports via pad to via pad measurements less than pp_spacing.

Internal ERF Name	<Area>:via2via
Measurement Shape Measurement Value Measurement ID	Spacing segment Spacing Pad1; Pad2
Layers Displayed	Signal layer
Graphic
Purpose	To apply spacing restrictions to via pads.
Function	Reports via pad to via pad measurements less than pp_spacing. Does not report measurements involving features with attribute Copper Feature Ignore. Via, in this instance, refers to a via hole with attribute Drill Type = Via. If the job was created directly from a CAD database, extra functionality is provided. A measurement between pads of the same CAD net, even if unconnected in the same layer, are placed in the ‘CAD Self Spacing’ category rather than the ‘Via to Via’ category.
ERF Parameters	pp_spacing pp_layer
ERF Variables	classify_pad2pad = yes
Constraint	Via Spacing
Limitations