Box - draws a balloon-style label
Box < in.H > out.V [pars]
Box outputs the vplot commands to draw a balloon-style label.
Options let you position the box and pointer, control the size of the labeling, etc. (It is even possible to draw boxes with perspective.) The boxes can be overlayed onto vplot graphics files using the 'erase=once' option of pen filters. For example, 'Tube < Wiggleout.H Boxout.H erase=once' The interact option of pen filters can be used to determine the coordinate of the spot the box's pointer is to point at. (Alas, not all pen filters support the 'interact' capability.) The special pen filter Vppen can be used to combine vplot files.
[0],[0] Position of tip of pointer
[2],[0] Relative Position of Text
[.25] Height of text, in inches
' ' Text string for label
[7] Color of text
[0] Whether or not the label should be fat
[1.] scale factor for width of pointer
[0],[90]Latitude and longitude of viewpoint (3-D case)
[0] Longitude of floating label(3-D case)
[n] this mirrors the label left-right
[1.] Scale factor for x0, y0.
[1.] Scale factor for xt, yt. (If 'length' option not set.)
if specified, sets the normalization for xt, yt.
[1] Whether (1) or not (0) to create a box arround text
[0] Wheter (1) or not (0) to create arrow
[0.] X axis length oval to create arround pointer location
[0.] Y axis length oval to create arround pointer location
DISTR
sep_graphics