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JSP-Generator Source
function dial(meas1,meas2,centrex,centrey,radius) {var p=FixedPoint(centrex,centrey,'') var q=FixedPoint(centrex,centrey-radius,'') var c=Circle(p,q,'') var calc=Calculate(10,30,'rotation','A B - A B + / 3.14 * ',[meas1,meas2],'hidden') var r=RotationMeasuredAngle(q,p,calc,'red') Segment(p,q,'') Segment(p,r,'')} a=Point(145,140,'label(A),traced') b=Point(10,180,'label(B)') c=Point(280,180,'label(C)') v1=Distance(a,b,10,10,"'Distance A-B='",'') v2=Distance(a,c,10,20,"'Distance A-C='",'') dial(v1,v2,50,50,25) FixedText(120,10,'Try to move A around so that','') FixedText(120,20,'distance A-B keeps the same as','') FixedText(120,30,'distance A-C','') FixedText(120,40,'The dial will help you','') FixedText(120,50,'It starts to turn when the distances','') FixedText(120,60,'are not equal','')