clash_r ({<num[4]>})
filter
The filter of all entities which clash with a 2-D screen rectangle.
<num[4]>
Two opposite corners 
 of the rectangle in screen coordinates. If omitted, the rectangle is defined 
 via a rubber box.
Highlight all entities which clash with a rectangle defined interactively.
highlight clash_r
Mirror all entities which clash with a defined rectangle.
numeric srect[4] = <0,0,500,500> mirror -x, clash_r(srect)
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 Commands:  | 
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 Functions:  | 
 clash_b (filter), clash_c (filter), clash_e (filter), clash_p (filter), clash_s (filter), clash_w (filter), clump_r (filter)  | 
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 Identifiers:  | 
 ignore_node_size (numeric)  |