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5.4.3 Dimensions
The dimensions of a graphical object specify the positions of the left
and right edges and the bottom and top edges of the objects’ bounding
box as distances from the objects’ reference point in units of
staff spaces. These positions are usually coded as two Scheme pairs.
For example, the text markup command \with-dimensions takes
three arguments, the first two of which are a Scheme pair giving the
left and right edge positions and a Scheme pair giving the bottom and
top edge positions:
\with-dimensions #'(-5 . 10) #'(-3 . 15) arg
This specifies a bounding box for arg with its left edge at -5, its right edge at 10, its bottom edge at -3 and its top edge at 15, all measured from the objects’ reference point in units of staff spaces.
See also
Notation Reference: Distances and measurements.
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