Stats

Locked Locked
Replies 4
Subscribers 144
Views 13819
Members are here 0

This discussion has been locked.

You can no longer post new replies to this discussion. If you have a question you can start a new discussion

Issue in script to modify a routing blockage in Cadence SKILL

I created 2 procedures in SKILL

The first takes 2 points "for ex: list(x:y)" and take a list of points returned by the command blockage_id~>points, and tries to find if those 2 points found on the returned list..
findPointsInList(pt1 pt2 ptList) .. returns 1 if successful or 0 otherwise

The second procedure uses the first one in its "if" condition, but it doesn't work, which is illogical to me!!

Hint: the many println() usages is for debugging.

Code:
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

;; Globals
deltaX = 0.02
deltaY = 0.02
offset = 0.02
cutWidth = 0.16

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

procedure( updateBlockage(id pts)

prog(
(
list1 list2 list3 list4 x1 y1 x2 y2 x3 y3 x4 y4 rectId idBlkgMetal1 blkgPointList vartop varbottom
x3TopBlkg y3TopBlkg x33TopBlkg y33TopBlkg x4TopBlkg y4TopBlkg x44TopBlkg y44TopBlkg
)

vartop = 0
varbottom = 0
list1 = list()
list2 = list()
list3 = list()
list4 = list()
blkgPointList = list()

arr=listToVector(pts)
list1 = arr[0]
list2 = arr[1]
list3 = arr[2]
list4 = arr[3]
pts=vectorToList(arr)

x1 = car(list1)
y1 = car(cdr(list1))
x2 = car(list2)
y2 = car(cdr(list2))
x3 = car(list3)
y3 = car(cdr(list3))
x4 = car(list4)
y4 = car(cdr(list4))

idBlkgMetal1 = id
blkgPointList = idBlkgMetal1~>points

;;;;;;;;;;;;;;
;Top blockage;
;;;;;;;;;;;;;;
x3TopBlkg = x3 + deltaX
y3TopBlkg = y3 + deltaY
x4TopBlkg = x4 - deltaX
y4TopBlkg = y4 + deltaY

x33TopBlkg = x3TopBlkg + offset
y33TopBlkg = y3TopBlkg + cutWidth
x44TopBlkg = x4TopBlkg - offset
y44TopBlkg = y4TopBlkg + cutWidth

;println("x3TopBlkg=")
;println(x3TopBlkg)
;println("y3TopBlkg=")
;println(y3TopBlkg)
;println("x4TopBlkg=")
;println(x4TopBlkg)
;println("y4TopBlkg=")
;println(y4TopBlkg)
;println("==========")

;;Top Blockage

vartop = findPointsInList(list(x3TopBlkg y3TopBlkg) list(x4TopBlkg y4TopBlkg) blkgPointList)
println("vartop = ")
println(vartop)

when( equal( vartop 1 )

                println("Hi from top!")

                leChopShape( idBlkgMetal1 list(x33TopBlkg:y2 x33TopBlkg:y33TopBlkg x44TopBlkg:y44TopBlkg x44TopBlkg:y1) t t 10 )

                procedure(myFilterProc(objId)
                if(objId~>objType=="rect" t nil)
                )
                rectId = gePointQuery( hiGetCurrentWindow() x3:y3 "myFilterProc")
                leStretchShape( rectId list( 0 cutWidth )
                list(nil t t nil) t )

                leStretchShape( rectId list(offset 0)
                list(nil nil t t) t )

                leStretchShape( rectId list(-offset 0)
                list(t t nil nil) t )

        );when

);prog
);proc

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

procedure( findPointsInList(pt1 pt2 ptList)
        prog( (pt1found pt2found flag1 flag2 sum cond1 cond2 cond3 cond4 cond5 cond6)

                sum = 0
                pt1found = 0
                pt2found = 0
                flag1 = 1
                flag2 = 1
                cond1 = 0
                cond2 = 0
                cond3 = 0
                cond4 = 0
                cond5 = 0
                cond6 = 0

                ;println("pt1found =")
                ;println(pt1found)
                ;println("pt2found =")
                ;println(pt2found)
                ;println("sum =")
                ;println(sum)

                foreach( pt ptList
                        ;println("pt =")
                        ;println(pt)
                        ;println("pt1")
                        ;println(pt1)

                        cond1 = equal(flag1 1)
                        cond2 = equal(float(car(pt)) float(car(pt1)))
                        cond3 = equal(float(car(cdr(pt))) float(car(cdr(pt1))))

                        cond4 = equal(flag2 1)
                        cond5 = equal(float(car(pt)) float(car(pt2)))
                        cond6 = equal(float(car(cdr(pt))) float(car(cdr(pt2))))

                        ;println("Blkg pt")
                        ;println(pt)
                        ;println("pt1 ")
                        ;println(pt1)
                        ;println("pt2")
                        ;println(pt2)
                        ;println(cond1)
                        ;println(cond2)
                        ;println(cond3)
                        ;println(cond4)
                        ;println(cond5)
                        ;println(cond6)
                        ;println("=========")


                        when( cond1 && cond2 && cond3
                                                ;println("I am section 1!")
                                                pt1found = 1
                                                flag1 = 0
                        );

                        when( cond4 && cond5 && cond6
                                                ;println("I am section 2!")
                                                pt2found = 1
                                                flag2 = 0
                        );when4


                );foreach

                sum = pt1found + pt2found

                ;println("after evaluation:")
                ;println("pt1found =")
                ;println(pt1found)
                ;println("pt2found =")
                ;println(pt2found)
                ;println("sum =")
                ;println(sum)


                if( equal( sum 2) then
                        return(1)
                else
                        return(0)
                );if



        );prog
);proc

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

I hope someone helps me.

Thank you!
Abdullah

Parents

skillUser over 9 years ago

Hi Abdullah,

I think that your main issue is that you are trying to compare floating point numbers using "equal" or '=' - this is never a good idea in any language. Use greater-than or less-than (> < greaterp lessp) functions, possibly combined with subtracting one number from another and looking at the absolute (abs) result and how close it is to zero (e.g. it is less than a very small number like 1e-6 in which case the numbers can be considered equal). Functions like pcRound() may help? There are many discussions about this in this forum and elsewhere, search for comparing floating point numbers as a starting place.

Best regards,

Lawrence.
Cancel
Vote Up 0 Vote Down

Cancel

Reply

skillUser over 9 years ago

Hi Abdullah,

I think that your main issue is that you are trying to compare floating point numbers using "equal" or '=' - this is never a good idea in any language. Use greater-than or less-than (> < greaterp lessp) functions, possibly combined with subtracting one number from another and looking at the absolute (abs) result and how close it is to zero (e.g. it is less than a very small number like 1e-6 in which case the numbers can be considered equal). Functions like pcRound() may help? There are many discussions about this in this forum and elsewhere, search for comparing floating point numbers as a starting place.

Best regards,

Lawrence.
Cancel
Vote Up 0 Vote Down

Cancel

Children

No Data

Community Guidelines

The Cadence Design Communities support Cadence users and technologists interacting to exchange ideas, news, technical information, and best practices to solve problems and get the most from Cadence technology. The community is open to everyone, and to provide the most value, we require participants to follow our Community Guidelines that facilitate a quality exchange of ideas and information. By accessing, contributing, using or downloading any materials from the site, you agree to be bound by the full Community Guidelines.