Deleting Points

Good afternoon,

I need to delete all points between 0 cm and 15 cm spacing.

If I can use an object as a base or a layer it will be even better.

With OVERKILL command it deletes randomly objects that only are overlapping.

Is there any lisp that can make this?

Could you provide a drawing showing what you are talking about?

Good afternoon,

I need to delete all points between 0 cm and 15 cm spacing.

If I can use an object as a base or a layer it will be even better.

With OVERKILL command it deletes randomly objects that only are overlapping.

Is there any lisp that can make this?

Not a simple task if points group has many points within the spacing, which to be deleted?

No solution code yet, perhaps wrong algorithm

The animation illustrates we toggle sorted point group min(X) and min(Y) seems there are many possibilities if max(X) max(Y) etc..?

we keep the highlighting points, then erase the rest say less than 15cm spacing. Though GIF shows in MM, similar concept.

This is HORRIBLY inefficient, but should work:

[b][color=BLACK]([/color][/b]defun c:delpts [b][color=FUCHSIA]([/color][/b]/ x ln ls ss i es en ed bp c cn cd cp[b][color=FUCHSIA])[/color][/b]

 [b][color=FUCHSIA]([/color][/b]initget 7[b][color=FUCHSIA])[/color][/b]
 [b][color=FUCHSIA]([/color][/b]setq x [b][color=NAVY]([/color][/b]getdist [color=#2f4f4f]"\nMinimum Distance:   "[/color][b][color=NAVY])[/color][/b][b][color=FUCHSIA])[/color][/b]

 [b][color=FUCHSIA]([/color][/b]while [b][color=NAVY]([/color][/b]not ln[b][color=NAVY])[/color][/b]
        [b][color=NAVY]([/color][/b]and [b][color=MAROON]([/color][/b]princ [color=#2f4f4f]"\nSelect 1 Entity For LAyer Search..."[/color][b][color=MAROON])[/color][/b]
             [b][color=MAROON]([/color][/b]setq ls [b][color=GREEN]([/color][/b]ssget[b][color=GREEN])[/color][/b][b][color=MAROON])[/color][/b]
             [b][color=MAROON]([/color][/b]= [b][color=GREEN]([/color][/b]sslength ls[b][color=GREEN])[/color][/b] 1[b][color=MAROON])[/color][/b]
             [b][color=MAROON]([/color][/b]setq ln [b][color=GREEN]([/color][/b]cdr [b][color=BLUE]([/color][/b]assoc 8 [b][color=RED]([/color][/b]entget [b][color=PURPLE]([/color][/b]ssname ls 0[b][color=PURPLE])[/color][/b][b][color=RED])[/color][/b][b][color=BLUE])[/color][/b][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]and [b][color=NAVY]([/color][/b]setq ss [b][color=MAROON]([/color][/b]ssget [color=#2f4f4f]"X"[/color] [b][color=GREEN]([/color][/b]list [b][color=BLUE]([/color][/b]cons 0 [color=#2f4f4f]"POINT"[/color][b][color=BLUE])[/color][/b][b][color=BLUE]([/color][/b]cons 8 ln[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]princ [b][color=MAROON]([/color][/b]strcat [color=#2f4f4f]"\nSearching POINTs On LAyer"[/color] ln [color=#2f4f4f]"\n"[/color][b][color=MAROON])[/color][/b][b][color=NAVY])[/color][/b]
      [b][color=NAVY]([/color][/b]setq i 0
           es [b][color=MAROON]([/color][/b]ssadd[b][color=MAROON])[/color][/b][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]princ [b][color=GREEN]([/color][/b]strcat [color=#2f4f4f]"\r"[/color] [b][color=BLUE]([/color][/b]rtos i 2 0[b][color=BLUE])[/color][/b] [color=#2f4f4f]"        "[/color][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]
                   bp [b][color=GREEN]([/color][/b]cdr [b][color=BLUE]([/color][/b]assoc 10 ed[b][color=BLUE])[/color][/b][b][color=GREEN])[/color][/b][b][color=MAROON])[/color][/b]
             [b][color=MAROON]([/color][/b]setq c 0[b][color=MAROON])[/color][/b]
             [b][color=MAROON]([/color][/b]while [b][color=GREEN]([/color][/b]setq cn [b][color=BLUE]([/color][/b]ssname ss c[b][color=BLUE])[/color][/b][b][color=GREEN])[/color][/b]
                    [b][color=GREEN]([/color][/b]setq cd [b][color=BLUE]([/color][/b]entget cn[b][color=BLUE])[/color][/b]
                          cp [b][color=BLUE]([/color][/b]cdr [b][color=RED]([/color][/b]assoc 10 cd[b][color=RED])[/color][/b][b][color=BLUE])[/color][/b][b][color=GREEN])[/color][/b]
                    [b][color=GREEN]([/color][/b]cond [b][color=BLUE]([/color][/b][b][color=RED]([/color][/b]and [b][color=PURPLE]([/color][/b]not [b][color=TEAL]([/color][/b]eq en cn[b][color=TEAL])[/color][/b][b][color=PURPLE])[/color][/b]
                                [b][color=PURPLE]([/color][/b]< [b][color=TEAL]([/color][/b]distance bp cp[b][color=TEAL])[/color][/b] x[b][color=PURPLE])[/color][/b][b][color=RED])[/color][/b]
                           [b][color=RED]([/color][/b]if [b][color=PURPLE]([/color][/b]not [b][color=TEAL]([/color][/b]ssmemb en es[b][color=TEAL])[/color][/b][b][color=PURPLE])[/color][/b]
                               [b][color=PURPLE]([/color][/b]ssadd en es[b][color=PURPLE])[/color][/b][b][color=RED])[/color][/b]
                           [b][color=RED]([/color][/b]if [b][color=PURPLE]([/color][/b]not [b][color=TEAL]([/color][/b]ssmemb cn es[b][color=TEAL])[/color][/b][b][color=PURPLE])[/color][/b]
                               [b][color=PURPLE]([/color][/b]ssadd cn es[b][color=PURPLE])[/color][/b][b][color=RED])[/color][/b][b][color=BLUE])[/color][/b][b][color=GREEN])[/color][/b]
                    [b][color=GREEN]([/color][/b]setq c [b][color=BLUE]([/color][/b]1+ c[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]if es
   [b][color=NAVY]([/color][/b]progn
     [b][color=MAROON]([/color][/b]princ [b][color=GREEN]([/color][/b]strcat [color=#2f4f4f]"\nErasing "[/color] [b][color=BLUE]([/color][/b]rtos [b][color=RED]([/color][/b]sslength es[b][color=RED])[/color][/b] 2 0[b][color=BLUE])[/color][/b] [color=#2f4f4f]" POINTs"[/color][b][color=GREEN])[/color][/b][b][color=MAROON])[/color][/b]
     [b][color=MAROON]([/color][/b]command [color=#2f4f4f]"_.ERASE"[/color] es [color=#2f4f4f]""[/color][b][color=MAROON])[/color][/b]
     [b][color=MAROON]([/color][/b]redraw[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