Ryan Malloy
99c3d20de5
Add true_density.dsn: NET_C is a full-height wall on the sole signal layer, so plain room routing drops a net under every net ordering (an order-independent obstruction, verified over all permutations), unlike rooms_shove_channel whose plain drop fits under a reorder. Test that shove recovers nothing on this board (shoves == 0, same routed set as plain) while staying DRC-clean, and that the only difference from the recoverable shove_channel is the wall's span. shove relocates a blocker into existing free space; where the wall leaves no headroom there is nowhere to relocate to, so it cannot manufacture density. The recover/fail boundary is the free-space boundary.
65 lines
1.0 KiB
Plaintext
65 lines
1.0 KiB
Plaintext
(pcb "true_density.dsn"
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(parser
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(string_quote ")
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(space_in_quoted_tokens on)
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(host_cad "freeroute-test")
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(host_version "1.0")
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)
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(resolution um 10)
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(unit um)
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(structure
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(layer F.Cu
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(type signal)
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(property
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(index 0)
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)
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)
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(layer B.Cu
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(type power)
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(property
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(index 1)
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)
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)
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(boundary
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(path pcb 0 0 0 200000 0 200000 -30000 0 -30000 0 0)
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)
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(rule
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(width 2000)
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(clearance 2000)
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)
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)
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(library
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(padstack Rect_Pad
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(shape (rect F.Cu -1000 -1000 1000 1000))
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(attach off)
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)
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(image PAD
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(pin Rect_Pad 1 0 0)
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)
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)
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(placement
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(component PAD
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(place A1 7000 -15000 front 0)
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(place A2 193000 -15000 front 0)
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(place C1 100000 -500 front 0)
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(place C2 100000 -29500 front 0)
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)
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)
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(network
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(net NET_A
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(pins A1-1 A2-1)
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)
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(net NET_C
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(pins C1-1 C2-1)
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)
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(class default
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(rule
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(width 2000)
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(clearance 2000)
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)
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)
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)
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(wiring
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)
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)
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