cpdf_setlinejoin
    (PHP 3>= 3.0.8, PHP 4 )
cpdf_setlinejoin -- Sets linejoin parameter
Description
void 
cpdf_setlinejoin ( int pdf document, long value)
     The cpdf_setlinejoin() function set the
     linejoin parameter between a value of 0 and 2. 0 = miter, 1 =
     round, 2 = bevel.