Cylinders require the following parameters, typically formatted as follows:
Radius<spc>Height<spc>XOffset<spc>YOffset<nl>
where Radius is a double defining the radius of the cylinder, Height is a double defining the distance, measured along the local Z-axis, between the base and the top of the cylinder, XOffset is a double containing an offset from the X-axis local origin for the top of the cylinder, YOffset is a double containing an offset from the Y-axis local origin for the top of the cylinder, <spc> is the space character and <nl> is the newline sequence.
Cylinders are drawn with their base on the local X-Y plane, with the cell origin used as the center of the base, and the cylinder extending up along the local Z-axis.