clash_c ({<num1[2]>,<num2>})
filter
The filter of all entities which clash with a 2-D screen circle.
 <num1[2]>
The 
      circle center in screen coordinates. This should comprise two numeric values. 
      If omitted, the circle is defined via a rubber circle.
<num2>
The circle radius 
 (in pixels).
Highlight all entities which clash with a circle defined interactively.
highlight clash_c
Remove all entities which clash with a defined circle.
numeric cent[2] = <250,250>, radius = 75 kill clash_c(cent,radius)
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 Commands:  | 
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 Functions:  | 
 clash_b (filter), clash_e (filter), clash_p (filter), clash_r (filter), clash_s (filter), clash_w (filter), clump_c (filter)  | 
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 Identifiers:  | 
 ignore_node_size (numeric)  |