All extension commands begin with a number. Part of the purpose of these extensions is to test what fea- tures would be suitable to include as part of the standard language. If you use these extensions it is advisable to create another CIF file using the -O options described above before submitting your circuit for fabrication. The following is a list of extensions recog- nized by cifplot. Include files can be nested up to 6 deep.
Text is placed on the plot at the posi- tion specified by the transformation.
The allowed transformations are the same as the those allowed for the Call command. The transformation affects only the point at which the beginning of the text is to appear. The text is always plotted horizontally, thus the mir- ror and rotate transformations are not really of much use. Normally text is placed above and to the right of the reference point. The 2C command centers the text about the reference point.