how can i keep a constant lengh of polyline, while editing control points.
im trying to abstract soundreflections for accousitcal elements - i have two points on a groundplane (symbolising sound fixed source and fixed receiver) and one point symbolising my reflector (movable in hight) so far thats quite easy. but now i want to have several receivers and teherefore several reflectors - but the sound path length should be the same. i tried set up a mathematic formula and express the hight of point (symbolising reflector on ceiling) by a constant length (source to reflector - reflector to receiver ) - but ist was complex and only an approximation - now im wondering if someone can help me... i would need somethig like scale in z direction untill length of polyline is achived, or keep a constant lengh of polyline, while editing control points. would be great if somebody could help, thanks
