CAD Self Spacing (Spacing)

Reports non-touching features closer than pp_spacing belonging to the same CAD net.

Internal ERF Name	<Area>:cad_self_spacing
Measurement Shape Measurement Value Measurement ID	Segment Distance Feature1; Feature2
Layers Displayed	Signal layer
Graphic
Purpose	There can be instances where close features are located in different layer nets but still belong to the same CAD net (for example, two ground pads or planes connected through other layers). When the system ‘knows’ the CAD nets, it channels these spacing violations to this category instead of the p2p, p2c or c2c categories. This avoids creating false alarms since CAD Self Spacing violations are not normally an issue.
Function	Reports non-touching features closer than pp_spacing belonging to the same CAD net. Measurements are segments representing the distance, if they only touch copper at their end-points. Does not report measurements involving features with attribute Copper Feature Ignore.
ERF Parameters	pp_layer pp_spacing
ERF Variables
Constraint	Feature Spacing
Limitations	Layer data must be input directly from a CAD database.