Provided is a data structure containing wiring information for an integrated circuit and a method for storing the same in a computer readable medium. The present invention also concerns a novel method for retrofitting conventional prior art single boom crane systems to convert them to dual trolley systems, while at the same time retaining the basic geometry of the prior art system so that the same number of multiple cranes may be positioned over the dock side. In the preferred embodiment the plates are spaced apart at a distance slightly greater than d such that a single layer of hose may be wound thereon in a \u2018pancake\u2019 configuration. In this step, at least one cephalogram is first input, and then a step is performed for comparing the image of the cephalogram with the tracing feature curve models, thereby selecting at least one cephalometric pattern and at least one feature curve model belonging to the cephalometric pattern from the reference cephalometric patterns and the tracing feature curve models.