Facsimile Simulation Library

Trapezoids require the following parameters, typically formatted as follows:

BaseWidth<spc>BaseLength<spc>TopWidth<spc>TopLength<spc>Height<spc>XOffset<spc>YOffset<nl>

where BaseWidth is a double defining the width (local Y-axis dimension) of the base of the trapezoid, BaseLength is a double defining the length (local X-axis dimension) of the base of the trapezoid, TopWidth is a double defining the width of the top of the trapezoid, TopLength is a double defining the length of the of top of the trapezoid, Height is a double defining the distance, measured along the local Z-axis, between the base and the top of the trapezoid, XOffset is a double containing an offset from the X-axis local origin for the top of the trapezoid, YOffset is a double containing an offset from the Y-axis local origin for the top of the trapezoid, <spc> is the space character and <nl> is the newline sequence.

Note that ACE, for reasons unknown, generally mixes up the terms width and length, so that a cell's width is called its length and vice versa, confusing many users. In this document, at the risk of further confusion to ACE users, the terms width and height are used with their more natural definitions.

Trapezoids are drawn with their base on the local X-Y plane, with the cell origin used as the center of the base, and each trapezoid extending up along the local Z-axis.

There is one special case: a trapezoid whose base and top lengths are equal, and whose base and top widths are equal, is a Box.