put circle around each selected object(multiple)

[David D]

I have heard of a lisp that will put a circle around each arc in a drawing after all polylines are exploded. Anybody know where I might find that script?

[David D]

Actually, I should say that I want to highlight a section of a drawing and have circles put around all the arcs in the highlighted area.

[Tharwat]

Hi,

 

• Select objects.
  
• Create bounding box for each object.
  
• Get the mid point of that Bounding Box.
  
• Draw circle from mid point with radius of the same distance from mid to Left/Right point of BB.
  

 

Happy coding.

[David Bethel]

A simple example of bounding CIRCLE entity for WCS ARCs :

 

[b][color=BLACK]([/color][/b]defun c:bboxarc [b][color=FUCHSIA]([/color][/b]/ ss i en ed ce ra sa ea ia p1 p2 cl mp cr[b][color=FUCHSIA])[/color][/b]
 [b][color=FUCHSIA]([/color][/b]and [b][color=NAVY]([/color][/b]princ [color=#2f4f4f]"\nSelect ARCs To Add Bounding CISRLE To : "[/color][b][color=NAVY])[/color][/b]
      [b][color=NAVY]([/color][/b]setq ss [b][color=MAROON]([/color][/b]ssget [b][color=GREEN]([/color][/b]list [b][color=BLUE]([/color][/b]cons 0 [color=#2f4f4f]"ARC"[/color][b][color=BLUE])[/color][/b][b][color=BLUE]([/color][/b]list 210 0 0 1[b][color=BLUE])[/color][/b][b][color=GREEN])[/color][/b][b][color=MAROON])[/color][/b][b][color=NAVY])[/color][/b]
      [b][color=NAVY]([/color][/b]setq i 0[b][color=NAVY])[/color][/b]
      [b][color=NAVY]([/color][/b]while [b][color=MAROON]([/color][/b]setq en [b][color=GREEN]([/color][/b]ssname ss i[b][color=GREEN])[/color][/b][b][color=MAROON])[/color][/b]
             [b][color=MAROON]([/color][/b]setq ed [b][color=GREEN]([/color][/b]entget en[b][color=GREEN])[/color][/b]
                   ce [b][color=GREEN]([/color][/b]cdr [b][color=BLUE]([/color][/b]assoc 10 ed[b][color=BLUE])[/color][/b][b][color=GREEN])[/color][/b]
                   ra [b][color=GREEN]([/color][/b]cdr [b][color=BLUE]([/color][/b]assoc 40 ed[b][color=BLUE])[/color][/b][b][color=GREEN])[/color][/b]
                   sa [b][color=GREEN]([/color][/b]cdr [b][color=BLUE]([/color][/b]assoc 50 ed[b][color=BLUE])[/color][/b][b][color=GREEN])[/color][/b]
                   ea [b][color=GREEN]([/color][/b]cdr [b][color=BLUE]([/color][/b]assoc 51 ed[b][color=BLUE])[/color][/b][b][color=GREEN])[/color][/b]
                   ia [b][color=GREEN]([/color][/b]if [b][color=BLUE]([/color][/b]> sa ea[b][color=BLUE])[/color][/b]
                          [b][color=BLUE]([/color][/b]+ [b][color=RED]([/color][/b]- [b][color=PURPLE]([/color][/b]* 2 pi[b][color=PURPLE])[/color][/b] sa[b][color=RED])[/color][/b] ea[b][color=BLUE])[/color][/b]
                          [b][color=BLUE]([/color][/b]- ea sa[b][color=BLUE])[/color][/b][b][color=GREEN])[/color][/b]
                   p1 [b][color=GREEN]([/color][/b]polar ce sa ra[b][color=GREEN])[/color][/b]
                   p2 [b][color=GREEN]([/color][/b]polar ce ea ra[b][color=GREEN])[/color][/b]
                   cl [b][color=GREEN]([/color][/b]distance p1 p2[b][color=GREEN])[/color][/b]
                   mp [b][color=GREEN]([/color][/b]polar p1 [b][color=BLUE]([/color][/b]angle p1 p2[b][color=BLUE])[/color][/b] [b][color=BLUE]([/color][/b]* cl 0.5[b][color=BLUE])[/color][/b][b][color=GREEN])[/color][/b]
                   cr [b][color=GREEN]([/color][/b]rem [b][color=BLUE]([/color][/b]+ i 1[b][color=BLUE])[/color][/b] 255[b][color=GREEN])[/color][/b][b][color=MAROON])[/color][/b]
             [b][color=MAROON]([/color][/b]if [b][color=GREEN]([/color][/b]>= ia pi[b][color=GREEN])[/color][/b]
                 [b][color=GREEN]([/color][/b]entmake [b][color=BLUE]([/color][/b]list [b][color=RED]([/color][/b]cons 0 [color=#2f4f4f]"CIRCLE"[/color][b][color=RED])[/color][/b][b][color=RED]([/color][/b]cons 8 [color=#2f4f4f]"TEMP"[/color][b][color=RED])[/color][/b]
                                [b][color=RED]([/color][/b]cons 10 ce[b][color=RED])[/color][/b][b][color=RED]([/color][/b]cons 40 ra[b][color=RED])[/color][/b][b][color=RED]([/color][/b]cons 62 cr[b][color=RED])[/color][/b][b][color=BLUE])[/color][/b][b][color=GREEN])[/color][/b]
                 [b][color=GREEN]([/color][/b]entmake [b][color=BLUE]([/color][/b]list [b][color=RED]([/color][/b]cons 0 [color=#2f4f4f]"CIRCLE"[/color][b][color=RED])[/color][/b][b][color=RED]([/color][/b]cons 8 [color=#2f4f4f]"TEMP"[/color][b][color=RED])[/color][/b]
                                [b][color=RED]([/color][/b]cons 10 mp[b][color=RED])[/color][/b][b][color=RED]([/color][/b]cons 40 [b][color=PURPLE]([/color][/b]* cl 0.5[b][color=PURPLE])[/color][/b][b][color=RED])[/color][/b][b][color=RED]([/color][/b]cons 62 cr[b][color=RED])[/color][/b][b][color=BLUE])[/color][/b][b][color=GREEN])[/color][/b][b][color=MAROON])[/color][/b]
             [b][color=MAROON]([/color][/b]setq i [b][color=GREEN]([/color][/b]1+ i[b][color=GREEN])[/color][/b][b][color=MAROON])[/color][/b][b][color=NAVY])[/color][/b][b][color=FUCHSIA])[/color][/b]
[b][color=FUCHSIA]([/color][/b]prin1[b][color=FUCHSIA])[/color][/b][b][color=BLACK])[/color][/b]

 

 

-David