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How to set up a constraint region in 16.2. ! a# \7 C3 c$ }6 X
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Lets say we want to create a spacing region:
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! W' r6 W! b4 Z$ nOpen constraint manager and create a Spacing Rule set for the constraint region.
3 R) H% E9 G+ D0 n4 B1. Open Constraint Manager on the board file.
8 T* Q, W# h- n# a: a2. Select Spacing > All Layers worksheet $ N' }6 x, l6 z7 y2 p
3. RMB on the Objects and select Create Spacing CSet 2 U1 N& i5 W2 j. m6 [
4. Type the name of Spacing CSet and change the pin to pin constraints that allow8 ~0 N: x4 W8 S# {3 N/ A% _8 O4 S4 s
pin to pin spacing for the 'special' component.
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! {; |3 q$ P6 B hNow create a region and assign a spacing CSet to the region.
# e3 l* S& l& ]5 C3 K0 r1. In Constraint Manager, select Region > All Layers
n; z9 n9 X, L4 ~% ^2. RMB > Create Region
5 i! P) T$ x X- }% e3. Give a name to the region, and select Ok.
]9 @( k; h) e s. a; c% n7 S4. On the Region worksheet, select the region that you just created, and assign' y1 U, g& ]- B. h
the Spacing CSet that you had created in the previous step. The rules of the
( z! j$ \( R: y5 c- A" `spacing CSet are automatically taken over by the Region./ v i" c; h# L" c
b2 J) P; B* VNow create a Shape on Constraint Area subclass and assign the region rules to it.; ?8 f$ d( f1 s% g5 t7 C
1. On Allegro, Select Shape > Polygon or Rectangular.
0 B. J' U( F, y6 Z2. In the Options panel on the Right hand side, select the Class as Constraint1 u0 a) G w1 ~+ |/ H1 W- P
Region > All./ {7 _: G( y0 p) W
3. From the drop down in the options panel, select the Region you had defined in* e) u6 S$ P1 @4 H5 U r
the previous step.
% D# t4 X' C" I- @& g: g5 _5 W4. Draw the rectangle or polygon around the component. |
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发表于 2010-1-22 16:40
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反对！
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