In the snippet below, the object rotate does not rotate when a variable
value but works with a fixed value.  It appears to be always set to zero
(no rotaion0 when a variable is used.  The goal was to create a spiral
series of I-beams.  Can anyone help me with what I am doing wrong?
thanks
      #declare i = 0;
      #declare h = 0;     //elevation
      #declare R = 5;     //outer radius
      #declare a = 0;
      #declare da = 360/40;
      #declare bpi = 40;  //beams per pi
      #declare rrate = 5*2*pi/360; //ramprate
      #declare bspan = 2*pi*R/40;
      #declare dh = bspan*tan(rrate);
      #while (i<40)
        object { I_beam
        texture { Steel_Beam }
        rotate <0,90,0>
        translate <R*cos(a), h, R*sin(a) >
         }
        #local a = a + da;
        #local i = i + 1;
        #local h = h + dh;

      #end

Post a reply to this message