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how to get the orientation of the terminal in "symbol"

Derek WANG

Hi All.

I'd like to get the orientation of the terminal for the "symbol" view in the cadence.

Suppose I get the cellview ID by

cv = dbOpenCellViewByType(libId~>name cellId~>name "symbol" "" "a")

and then get the first terminal by

term = car( cv~>terminals )

and how can I find the orientation for the terminal "term", or the orientation of its corresponding shape of the pin.

Thanks in advance.

Best Regards

Yi

Parents

  • I have done a little script that gives you the orientation of a point XY concidering the potition of the bounding box (in that case : the bBox of your symbol).


    Hope it helps,

    defun( angleSectionr (XY @optional (teta acos(-1)/2)) ;<= marche aussi
let((phi X Y pi Xr Yr) X=car(XY) Y=cadr(XY) pi=acos(-1)
;; printf("[angleSectionr]%L\n" list(XY X==0))
phi=cond(
(X==0 if(Y<0 -pi/2  pi/2))
(X<0 if(Y<0 atan(Y/X)-pi atan(Y/X)+pi))
(t atan(Y/X) ))
;; printf("phi:teta = %L\n" phi:teta)
;; printf("phi:teta = %L[deg]\n" list(phi/pi*180 teta/pi*180))
cond(
(teta-pi<=phi&&phi<-teta 0)
(-teta<=phi&&phi<teta 1)
(teta<=phi&&phi<pi-teta 2)
(t 3)
)))

;; phi se retrouve entre -pi et +pi
;; \ 2 2/
;;  \  /
;; 3 \/ 1
;; 3 /\ 1
;;  /  \
;; / 0 0\

; angleSection(x:y atan(cadadr(bBox)/cadar(bBox)))

defun( angleBox (XY bBox) let((X0 Y0 X1 Y1 teta)
X0 = caar(bBox)     
Y0 = cadar(bBox) 
X1 = caadr(bBox)     
Y1 = cadadr(bBox)
teta=atan((Y1-Y0)/abs(X1-X0))
;printf("xy%L centr%L teta%L\n" XY centerBox(bBox) teta/acos(-1)*180)
;; angleSection(rodSubPoints(XY centerBox(bBox)) teta)
angleSectionr(rodSubPoints(XY centerBox(bBox)) teta)
))

;; angleBox('())
;; angleBox(0:0 '((0.0 -1.125) (0.5 0.0)))
;; angleBox(0.5:-1.125 '((0.0 -1.125) (0.5 0.0)))

    ____

Reply

  • I have done a little script that gives you the orientation of a point XY concidering the potition of the bounding box (in that case : the bBox of your symbol).


    Hope it helps,

    defun( angleSectionr (XY @optional (teta acos(-1)/2)) ;<= marche aussi
let((phi X Y pi Xr Yr) X=car(XY) Y=cadr(XY) pi=acos(-1)
;; printf("[angleSectionr]%L\n" list(XY X==0))
phi=cond(
(X==0 if(Y<0 -pi/2  pi/2))
(X<0 if(Y<0 atan(Y/X)-pi atan(Y/X)+pi))
(t atan(Y/X) ))
;; printf("phi:teta = %L\n" phi:teta)
;; printf("phi:teta = %L[deg]\n" list(phi/pi*180 teta/pi*180))
cond(
(teta-pi<=phi&&phi<-teta 0)
(-teta<=phi&&phi<teta 1)
(teta<=phi&&phi<pi-teta 2)
(t 3)
)))

;; phi se retrouve entre -pi et +pi
;; \ 2 2/
;;  \  /
;; 3 \/ 1
;; 3 /\ 1
;;  /  \
;; / 0 0\

; angleSection(x:y atan(cadadr(bBox)/cadar(bBox)))

defun( angleBox (XY bBox) let((X0 Y0 X1 Y1 teta)
X0 = caar(bBox)     
Y0 = cadar(bBox) 
X1 = caadr(bBox)     
Y1 = cadadr(bBox)
teta=atan((Y1-Y0)/abs(X1-X0))
;printf("xy%L centr%L teta%L\n" XY centerBox(bBox) teta/acos(-1)*180)
;; angleSection(rodSubPoints(XY centerBox(bBox)) teta)
angleSectionr(rodSubPoints(XY centerBox(bBox)) teta)
))

;; angleBox('())
;; angleBox(0:0 '((0.0 -1.125) (0.5 0.0)))
;; angleBox(0.5:-1.125 '((0.0 -1.125) (0.5 0.0)))

    ____

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