Get a size of part outline

I think axlDBGetExtents only works with physical objects (such as symbol, shape, lines), not logical objects ( such as components, functions & nets )

below is an example of getting a symbol's outline, I only have package geometry/place_bound_top visible:

\i (00:04:27) skill db1=car(axlGetSelSet())
(00:04:27) dbid:357367248
\i (00:04:30) skill db1->??
(00:04:30) (prop nil bBox
(00:04:30) ((1756.0 1364.4)
(00:04:30) (2980.5 1964.4)
(00:04:30) ) readOnly
(00:04:30) t pins
(00:04:30) (dbid:359594208 dbid:360335600) objType "symbol"
(00:04:30) embeddedAttach nil embeddedMethod nil embeddedLayer
(00:04:30) nil embedded nil fixedByTestPoint nil
(00:04:30) component dbid:357309280 xy
(00:04:30) (1876.0 1732.5) type
(00:04:30) "PACKAGE" rotation 0.0 refdes "FB18"
(00:04:30) parent dbid:297174832 name "SFB1612A" definition
(00:04:30) dbid:357356208 mirrorType "NO" isMirrored nil
(00:04:30) etchChildren nil children
(00:04:30) (dbid:360907216 dbid:360907296 dbid:360907376 dbid:360907464 dbid:360907552
(00:04:30) dbid:360907640 dbid:360907720 dbid:360907800 dbid:360907880 dbid:360908432
(00:04:30) dbid:360908664 dbid:360908920 dbid:360909152 dbid:360909344 dbid:360909536
(00:04:30) ) parentGroups
(00:04:30) nil
(00:04:30) )

\i (00:04:56) skill 'axlDBGetExtents(db1 nil)'
(00:04:56) ((1756.0 1364.4)
(00:04:56) (2980.5 1964.4)
(00:04:56) )
\i (00:05:08) skill 'axlDBGetExtents(db1 t)'
(00:05:08) ((1803.5 1364.4)
(00:05:08) (2980.5 1964.4)
(00:05:08) )

Thanks

But I did same code, still it only showed me nil

Is there any settings or something else that prior to get a extents from symbol ?

It's not clear what you want.

You could try axlDBGetExtents(axlDBGetShapes("PACKAGE GEOMETRY/PLACE_BOUND_TOP"), nil)

Hi Dave,

  axlDBGetExtents(axlDBGetShapes("PACKAGE GEOMETRY/PLACE_BOUND_TOP") is the extent if multi shapes exist on one layer.

  car(axlDBGetShapes("PACKAGE GEOMETRY/PLACE_BOUND_TOP")) ->bBox is only for one shape's extent, right? I learn one tip from you again.

Yes

Hi Dave, I also tried your comment but it's not what I want.

What I really want is the shape of symbol on Place_Bound_Top Layer

Because of library conditions, maybe, or my miss understanding of Allegro PCB Tools, I couldn't get proper data with axlDBGetExtents.

Also, I found the value of my symbol Extents at Design Parameter tap (from mouse right click option), but the value was weird like Left X : -1000, Lower Y : -987.5000, Width 2000, Height 2000. (Maybe it's not the value that you mentioned.)  

Anyway, I could found the value of symbol's shape at bBox value among the symbol's children properties, which objType was shape

I'm still confused with the meaning of Extent, shape and bounding box.

I'd appreciate if you explain how they are diffrent. 

Thanks

Hi Dave, I also tried your comment but it's not what I want.

What I really want is the shape of symbol on Place_Bound_Top Layer

Because of library conditions, maybe, or my miss understanding of Allegro PCB Tools, I couldn't get proper data with axlDBGetExtents.

Also, I found the value of my symbol Extents at Design Parameter tap (from mouse right click option), but the value was weird like Left X : -1000, Lower Y : -987.5000, Width 2000, Height 2000. (Maybe it's not the value that you mentioned.)  

Anyway, I could found the value of symbol's shape at bBox value among the symbol's children properties, which objType was shape

I'm still confused with the meaning of Extent, shape and bounding box.

I'd appreciate if you explain how they are diffrent. 

Thanks

Hi

Explaining these in detail is a long story. In short 

Bounding Box is always the smallest rectangle embracing an object (or selection) The result is the lower left corner and upper right corner

Design Extent. This is like a piece of paper that has a width and height. Left x is the leftmost x-coordinate and Lower Y is the bottom y-coordinate of the paper.

So if you have a board that is 2000x2000 with lower left -1000 and lower Y -987.5 then the coordinate of the bottom left corner of the paper is -1000,-987.5 - in other words your 0,0 is placed approximately at the center of the paper - namely 1000 units in the x direction and 987.5 units in the y-direction

If you then have a shape, whatever type or size, it will have a bounding box. Your Board or footprint will have extents.

Hope this helps

Ole