这个skill脚本可以用来计算layer的面积，包括Path、Rectange、Polygon。
用法：复制代码保存为 layer_area.il,
在icfb的CIW窗口
load "layer_area.il"
在layout界面选中要测量的图形, 按下 Alt+a 即可弹出所选图形的面积。
如果依次选择多个图形，在按下Alt+a时显示所选的第一个图形面积，点击Close关闭后显示第二个图形面积，再按下Close关闭后显第三个图形面积。
下图依次选取了diff, poly和metal三个layer, 按Alt+a则显示diff面积，点Close显示poly面积，再点Close显示metal面积。
PS.这只能计算flat的layer面积，不能计算instance的面积。
/*
Synopsis : CL_Area()
*/
procedure(CL_Area()
prog((cvId selObj area number shape Box points point1 point2 length width )
cvId = getEditRep(hiGetCurrentWindow())
selObj = geGetSelSet(cvId)
number = length(selObj)
if(zerop(number) then
CLMessage("Error!!" 'Close "Please select a layer." )
return()
)
geDeselectAll(hiGetCurrentWindow())
foreach(shape selObj
area = 0
case( shape~>objType
("rect"
Box = shape~>bBox
area = (car(cadr(Box)) - car(car(Box))) * (cadr(cadr(Box)) - cadr(car(Box)))
)
("polygon"
number = length(shape~>points)
points = shape~>points
points = append(points list(car(points)))
while(!zerop(number)
point1 = car(points)
points = cdr(points)
point2 = car(points)
area = area + ( car(point1) * cadr(point2) )
area = area - ( car(point2) * cadr(point1) )
number--
);while
area = abs(area/2)
)
("path"
number = shape~>nPoints
points = shape~>path
width = shape~>width
while(!zerop(number-1)
point1 = car(points)
points = cdr(points)
point2 = car(points)
if(equal(car(point1) car(point2))
length = abs(cadr(point1) - cadr(point2))
length = abs( car(point1) - car(point2))
);if
area = area + length * width
number--
);while
case(shape~>pathStyle
("extendExtend" area = area + width*width )
("varExtendExtend" area = area + (shape~>beginExt+shape~>endExt)*width )
("roundRound" area = area + 4/9.0 * width * width ) ;(w/3^2) * 4
(t );truncateExtend
);case
)
(t
area = 0.0
)
);case
geSelectObject(shape)
if(zerop(area) then
CLMessage("Error!!" 'Close "This is not a layer.")
sprintf(area "Area = unknown")
else
sprintf(area "Area = %f" area)
)
CLMessage("Layer Area" 'Close area)
geDeselectFig(shape)
);foreach
);prog
);procedure
;-------------------------------------------------------
procedure(CLMessage(title button message)
prog( ()
hiDisplayAppDBox(
?name 'CLDBox
?dboxBanner title
?buttonLayout button
?dboxText message
)
);prog
);procedure
hiSetBindKey("Layout" "Alt<Key>a" "CL_Area()")