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asymptote: markers

 
 8.9 'markers'
 =============
 
 This package implements specialized routines for marking paths and
 angles.  The principal mark routine provided by this package is
 markroutine markinterval(int n=1, frame f, bool rotated=false);
 which centers 'n' copies of frame 'f' within uniformly space intervals
 in arclength along the path, optionally rotated by the angle of the
 local tangent.
 
    The 'marker' (marker) routine can be used to construct new
 markers from these predefined frames:
 
 frame stickframe(int n=1, real size=0, pair space=0, real angle=0,
                  pair offset=0, pen p=currentpen);
 frame circlebarframe(int n=1, real barsize=0,
                      real radius=0,real angle=0,
                      pair offset=0, pen p=currentpen,
                      filltype filltype=NoFill, bool above=false);
 frame crossframe(int n=3, real size=0, pair space=0,
                  real angle=0, pair offset=0, pen p=currentpen);
 frame tildeframe(int n=1, real size=0, pair space=0,
                  real angle=0, pair offset=0, pen p=currentpen);
 
    For convenience, this module also constructs the markers
 'StickIntervalMarker', 'CrossIntervalMarker', 'CircleBarIntervalMarker',
 and 'TildeIntervalMarker' from the above frames.  The example
 'markers1.asy' illustrates the use of these markers:
 
 
                               [markers1]
 
    This package also provides a routine for marking an angle AOB:
 void markangle(picture pic=currentpicture, Label L="",
                int n=1, real radius=0, real space=0,
                pair A, pair O, pair B, arrowbar arrow=None,
                pen p=currentpen, margin margin=NoMargin,
                marker marker=nomarker);
 as illustrated in the example 'markers2.asy'.
 
 
                               [markers2]
 

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