SKlLL to Offsets lines and arcs by a specified distance,

This is not a trivial piece of code, I'd rate it mid level complexity .

I am curious to see if/how others have managed it.

I personally prefer the hug option instead

This function has accomplished by the Daltools skill which is a Commercial tool, but can not get the source code to know how does it go

Hi HoangKhoi ,

The code has improve as the pattern I mention above， but it is a little strange that the cline width is sometime is 0um width(wrong)， sometimes use the one default(right value)

and the axlUIPrompt dialog box （250 spacing）is always on ，so every time need to put the offset value to replace 250，

so can you help optimize the offset value can keep the value which user give？ thanks again~

Hi Xiaome8,

Here your the code:

;+++++++++++++++++++++++++++++++++++++++++++++++++++++++++
axlCmdRegister("offset_line" `offset_line)
offset_value_s = ""
(defun offset_line ()
offset_value = axlUIPrompt( "Enter offset value:" offset_value_s)
if(offset_value != nil && atof(offset_value) > 0.0 then
offset_value_s = offset_value
axlClearSelSet()
axlSetFindFilter(?enabled '(noall CLINES NAMEFORM) ?onButtons '(noall ALL))
axlSingleSelectPoint()
cline = car(axlGetSelSet())
axlClearSelSet()
if( cline != nil then
pick_airgap = axlEnterPoint()
if(pick_airgap != nil then
_airgap = axlAirGap(cline pick_airgap nil 'enhanced)
airgap = axlAirGap(cline pick_airgap nil 'anyLayer)
if(_airgap != nil && _airgap->airgap > 0.0 then
ol = axlGeoCircleLineInt2(_airgap->location1 _airgap->location2 _airgap->location1 atof(offset_value))
dis1 = axlDistance(_airgap->location2 car(ol))
dis2 = axlDistance(_airgap->location2 cadr(ol))
pick_airgap = car(ol)
if(dis2 < dis1 then
pick_airgap = cadr(ol)
)
segs = cline->segments
st_end_list = segs~>startEnd
st_seg = car(segs)
first_seg_point = car(st_seg->startEnd)
tmp = setof(e st_end_list e != st_seg->startEnd && member(first_seg_point e) != nil)
if(tmp != nil then first_seg_point = cadr(st_seg->startEnd))
last_seg = lastelem(segs)
last_seg_point = car(last_seg->startEnd)
tmp = setof(e st_end_list e != last_seg->startEnd && member(last_seg_point e) != nil)
if(tmp != nil then last_seg_point = cadr(last_seg->startEnd))
cline_poly = axlPolyFromDB(cline ?endCapType 'ROUND )
if(length(cline_poly)>1 then
cline_poly = car(axlPolyOperation(car(cline_poly) cdr(cline_poly) 'OR))
)
exp_poly = car(axlPolyExpand(cline_poly atof(offset_value) + car(cline->segments)->width*0.5 'NONE))
axlClearSelSet()
axlAddSelectPoly(exp_poly t)
cline_displays = axlGetSelSet()
axlDBAddProp(cline_displays list( "FIXED" t))
axlDBRefreshId(nil)
shape = car(axlDBCreateShape(exp_poly t "anti etch/all"))
rpath = axlDB2Path(shape)
new_cline = car(axlDBCreatePath(rpath cline->layer nil ) )
seg_width = car(cline->segments)->width
axlChangeWidth(car(new_cline), car(cline->segments)->width )
axlDeleteObject(shape)
new_cline = car(new_cline)
foreach(seg new_cline->segments
if(seg->xy != nil then
if(axlDistance(seg->xy first_seg_point) <= seg_width || axlDistance(seg->xy last_seg_point)<= seg_width then
axlDeleteObject(seg)
)
)
)
axlClearSelSet()
axlAddSelectPoly(exp_poly t)
clines = axlGetSelSet()
foreach(item clines
cline_poly = axlPolyFromDB(item ?endCapType 'NONE )
if(length(cline_poly)>1 then
cline_poly = car(axlPolyOperation(car(cline_poly) cdr(cline_poly) 'OR))
)
exp_poly = car(axlPolyExpand(cline_poly seg_width 'NONE))
if(!axlGeoPointInShape(pick_airgap exp_poly nil) then
if(axlDBIsFixed(item) == nil then
axlDeleteObject(item)
)
)
)
axlDBDeleteProp(cline_displays list( "FIXED"))
axlShell("offset_line")
)
)
)
)
)

Hi HoangKhoi ,

This one is good ! thanks!

 Niubility!

Hi HoangKhoi,

Good day！

For the offset cline skill code is perfect， I have a new idea for further development this code to replace the Resize/Respace Diff Pairs command （the cadence command is not good for arc type  and non-45 degree diff-pair adjustment）
（To get the code more simple，I thinks no need to update the constrain DRC or change cline width . for they can use another command）, just need to offset 2 P/N clines to the space we want.
so if you have time ，would you help to study for it？as far as I know currently ，there is few skill for diff-pair adjustment.

Hi Xiaome8,

Can we switch to email? It’s just a quick chat.

Please contact me : hoangkhoipcb -> g_mail

Regards,

HoangKhoi.

Hi Xiaome8,

Can we switch to email? It’s just a quick chat.

Please contact me : hoangkhoipcb -> g_mail

Regards,

HoangKhoi.