axlSingleSelectPoint not accurately ! 

 Hi all!
   I'm writting a skill to check at start point & end point of a cline if pin exist or not, if pin exist and pin's netname ="dummy",
   then assign that cline to that pin. AND , if the coordinate is in the restrict area (box_xy) then do nothing. But I got the problem,
   when I put the code to get restrict area, the code still run but the function axlSingleSelectPoint not accurately, otherwise, it's ok.
   Who can show me where's wrong? and how can I fix it?.
   
..............

; =====Get box  xy, (default: leftdonwn- rightup)=====
box_xy = axlEnterBox(?prompts list("First rectangle point, please...", "Second rectangle point, please..."))
axlClearSelSet()
loc1_x = xCoord(car(box_xy))
loc1_y = yCoord(car(box_xy))
loc2_x = xCoord(cadr(box_xy))
loc2_y = yCoord(cadr(box_xy))

;=====process if user pick from any coner for making axlEnterBox()=====
if(loc1_x < loc2_x && loc1_y < loc2_y then
  box1x = loc1_x
  box1y = loc1_y
  box2x = loc2_x
  box2y = loc2_y
else
if(loc1_x < loc2_x && loc1_y > loc2_y then
  box1x = loc1_x
  box1y = loc2_y
  box2x = loc2_x
  box2y = loc1_y
else
if(loc1_x > loc2_x && loc1_y < loc2_y then
  box1x = loc2_x
  box1y = loc1_y
  box2x = loc1_x
  box2y = loc2_y
else
  box1x = loc2_x
  box1y = loc2_y
  box2x = loc1_x
  box2y = loc1_y
);enf if 1
);end if 2
);end if 3

;=====Prepare =====
axlSetFindFilter(?enabled '(noall pins) ?onButtons '(noall pins))
axlClearSelSet()
axlVisibleDesign(nil)
axlVisibleUpdate(t)
axlVisibleLayer("Pin/top" t)
axlUIWUpdate(nil)
axlClearSelSet()

;=====Main process=====
foreach(clines allWiresInDesign
netname = clines->net->name
if(stringp(netname) then
when(nindex(netname, "__")    
;=====get location xy at start cline & end cline=====
cline_seg = clines->segments            ;get all segment in a cline
first_seg = car(cline_seg)                ;get first segment
last_seg = car(last(cline_seg))            ;get last segment
first_seg_xy = car(first_seg->startEnd)
last_seg_xy = cadr(last_seg->startEnd)    

x1= xCoord(car(first_seg->startEnd))           
y1= yCoord(car(first_seg->startEnd))
x2= xCoord(lastelem(last_seg->startEnd))
y2= yCoord(lastelem(last_seg->startEnd))

;===CHECK LOCATION X1:Y1 IF PIN EXIST OR NOT=====
if(and(x1>box1x, x1<box2x, y1>box1y, y1<box2y) == nil then
pinselect = axlGetSelSet(axlSingleSelectPoint(x1:y1))
axlClearSelSet()
if( pinselect != nil then
pinselect = car(pinselect)
sym_name = pinselect->component->name
pin_net_name = pinselect->net->name
pin_number = pinselect->number
if(pin_net_name == "" then
  fprintf(writeOutFile, "%s %s\n", "FORM mini netlist ", netname)
  fprintf(writeOutFile, "%s %s.%s\n", "FORM mini pinname ", sym_name, pin_number)
  fprintf(writeOutFile, "next\n")
);endif
);end if pinselect==nil
);end if

;===CHECK LOCATION X2:Y2 IF PIN EXIST OR NOT=====
if(and(x2>box1x, x2<box2x, y2>box1y, y2<box2y) == nil then
pinselect = axlGetSelSet(axlSingleSelectPoint(x2:y2))
axlClearSelSet()
if( pinselect != nil then
pinselect = car(pinselect)
sym_name = pinselect->component->name
pin_net_name = pinselect->net->name
pin_number = pinselect->number
if(pin_net_name == "" then
  fprintf(writeOutFile, "%s %s\n", "FORM mini netlist ", netname)
  fprintf(writeOutFile, "%s %s.%s\n", "FORM mini pinname ", sym_name, pin_number)
  fprintf(writeOutFile, "next\n")
);end if - (1-24)
);end if pinselect==nil)
);end if

);end when
);end if stringp
);end foreach via allWiresInDesign

.........

Tks!
Luan.

I think your logic is reversed in the two lines:

 if(and(x1>box1x, x1<box2x, y1>box1y, y1<box2y) == nil then

and  if(and(x2>box1x, x2<box2x, y2>box1y, y2<box2y) == nil then

Should they have == nil at the end?

Also, I suggest you look at using min and max functions :

;=====process if user pick from any corner for making axlEnterBox()=====

box1x = min(loc1_x, loc2_x)

box1y = min(loc1_y, loc2_y)

box2x = max(loc1_x, loc2_x)

box2y = max(loc1_y, loc2_y) 

 Hi Dave!

Thank for your advices, and I want to check at all position  except for checking in restrict area, it's mean if a location having co-ordinate is in restrict area, skill will inorge it and check other position. so I think command "if(and(x1>box1x, x1<box2x, y1>box1y, y1<box2y) == nil" is right. But I don't know when I "only" put the function  "axlEnterBox" in the code (all "IF" condition for checking positon in restrict area are skipped), axlSingleSelectPoint will not  run exactly. Otherwise, my skill run OK. Could  you please show me what's wrong in my code?.

Tks.

Luan.

Hi Luan,

You need to thoroughly check your logic.

Try using "when" and "unless" instead of "if(a == b" and "if(a != b".

Don't forget that axlSingleSelectPoint depends on the trap size so will give arbitrary results if you are not careful. 

 Hi Dave! Sorry for announcement to you too late, but as your advice, the reason that my code didn't run exactly depend on trap size, and i have repaired it by function axlZoomToDbid. Once more, thank you very much.

Luan.