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if(@ptnum<@numpt-1){
vector nextP = point(0, "P", @ptnum+1);
@boardSize = distance(@P, nextP);
}
else{
vector lastP = point(0, "P", @ptnum-1);
@boardSize = distance(@P, lastP);
}
float taper = chramp("ShrinkShape",@grad);
//if you want to art direct the gap, and space them tighter closer
//one side or something

//@boardSize*=ch("ShrinkPercent")*taper;
//if you want to maintain a gap based on percentage of board size
@boardSize -= ch("ShrinkAmt")*taper;
//for a measured gap