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How to set up a constraint region in 16.2. . j8 k4 E1 v2 J! I }$ K
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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.
# C) {2 w7 w6 @4 U2 j S' q- f1. Open Constraint Manager on the board file.
% j* F6 v) X8 A# W% T$ n0 W2. Select Spacing > All Layers worksheet
0 i5 F2 L p' l9 h* f. G I( b. B8 n3. RMB on the Objects and select Create Spacing CSet
# V5 [! l" F3 o4. Type the name of Spacing CSet and change the pin to pin constraints that allow
% X! r% o Y. G& A) f) i+ h% x- |5 u: cpin to pin spacing for the 'special' component.4 [" t8 {: o2 _* e K4 B
4 ~9 j# k2 s6 ^) @, sNow create a region and assign a spacing CSet to the region.
! h" O% `7 w( m, p9 t% f* q1. In Constraint Manager, select Region > All Layers
7 d0 w8 S: _9 I4 m2. RMB > Create Region $ R6 s* W }( ]8 `8 s0 [- B
3. Give a name to the region, and select Ok.4 c. r) S+ j3 M0 d) u- |3 T
4. On the Region worksheet, select the region that you just created, and assign
% o0 n3 L* ?0 k7 u$ \" F' a5 Q( F* [the Spacing CSet that you had created in the previous step. The rules of the+ T& b! m# x7 ^% j5 l
spacing CSet are automatically taken over by the Region.9 y1 k8 @3 S+ Q3 \( c
' w1 C& z% z* INow create a Shape on Constraint Area subclass and assign the region rules to it.
; p, }0 {' t s3 E4 g) |" R1. On Allegro, Select Shape > Polygon or Rectangular.8 W7 S# z( c: S; c: v: C( @
2. In the Options panel on the Right hand side, select the Class as Constraint
% W9 z8 p( c$ D9 `) J2 b" I# h2 ], A5 fRegion > All.% |) {8 m# ?4 c) M9 H& `- I; N, o" g
3. From the drop down in the options panel, select the Region you had defined in
" }' g, y; v5 e3 D* O$ j7 p$ d2 b. z& Ythe previous step.6 n+ d' \1 v: p- Y
4. Draw the rectangle or polygon around the component. |
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发表于 2010-1-22 16:40
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