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How to set up a constraint region in 16.2. - \3 b$ C& ? @8 \0 N
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Lets say we want to create a spacing region:
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Open constraint manager and create a Spacing Rule set for the constraint region.
; ^" l' Q8 ?: ~3 y1. Open Constraint Manager on the board file.
5 B1 X0 Z$ {! F! t( c) a5 c2. Select Spacing > All Layers worksheet $ y# A1 {% T9 x) s$ c
3. RMB on the Objects and select Create Spacing CSet
0 h+ I1 [# _1 `# u3 N- h4. Type the name of Spacing CSet and change the pin to pin constraints that allow$ y S c& \! @& [$ M
pin to pin spacing for the 'special' component.
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Now create a region and assign a spacing CSet to the region." i! I# r/ T4 g5 V# \+ Q) S( e4 X
1. In Constraint Manager, select Region > All Layers
0 P' H! x `" `& o9 h$ g$ A3 a( b2. RMB > Create Region " m) C0 J4 \7 R# Q
3. Give a name to the region, and select Ok.
) E8 s0 f( x9 ]4 u4 T4. On the Region worksheet, select the region that you just created, and assign$ E1 t% `$ ]! w& N: E
the Spacing CSet that you had created in the previous step. The rules of the& A M/ c! R) S
spacing CSet are automatically taken over by the Region.2 ~+ k' d5 d6 z
3 X( r9 M7 a: c) l4 pNow create a Shape on Constraint Area subclass and assign the region rules to it.
5 S2 T. O' u) ` L4 F1. On Allegro, Select Shape > Polygon or Rectangular.
. T3 ]6 O; x# T# \' f! X2. In the Options panel on the Right hand side, select the Class as Constraint
8 `0 H7 l- H* g. `5 C9 CRegion > All.1 u G2 Z5 `; }: n
3. From the drop down in the options panel, select the Region you had defined in
6 e* a$ V; C$ G4 @" z/ qthe previous step.
: g% t, n$ D$ [% k7 K- X4. Draw the rectangle or polygon around the component. |
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发表于 2010-1-22 16:40
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