jeanmarc Posted October 3, 2012 Share Posted October 3, 2012 (edited) Hi Magicians, in a group SOP what would be the correct expression if i want to select only last and first points of a group ? it look like never mind what is after && , it is nor evaluated ($PT > ($NPT -2) && ($PT < ($NPT -($NPT+1)))) jean-marc Edited October 3, 2012 by jeanmarc Quote Link to comment Share on other sites More sharing options...
sadhu Posted October 3, 2012 Share Posted October 3, 2012 Hi, simple option is to type 0 $N in the pattern. ($N is the last entity of the input it can be last point or last polygon depending upon what you are grouping) If you want to use an expression $PT==0 || $PT == $NPT-1 && will not work as it means both the conditions(point being the first point and point being the last point) should be satisfied by a prim/point then only it will be in the group so expression with && look for points whose number is equal to zero and at the same time equal to the last point ( it is not possible except there is only single point in the geometry) So use || (or) meaning if any of the condition (point being the first point and point being the last point) gets satisfied point / prim will be in the group. Quote Link to comment Share on other sites More sharing options...
jeanmarc Posted October 3, 2012 Author Share Posted October 3, 2012 Thank you Sadhu! Quote Link to comment Share on other sites More sharing options...
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