NAME

Box - draws a balloon-style label


SYNOPSIS

 Box < in.H > out.V [pars]


DESCRIPTION

 Box outputs the vplot commands to draw a balloon-style label.


COMMENTS

 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.


INPUT PARAMETERS

x0,y0- float
        [0],[0]  Position of tip of pointer
xt,yt- float
        [2],[0]  Relative Position of Text
size - float
        [.25]    Height of text, in inches
label- char*
        ' '   Text string for label
lab_color- int
        [7]     Color of text
lab_fat- int
        [0]     Whether or not the label should be fat
pscale - float
        [1.]    scale factor for width of pointer
lat,long- int
        [0],[90]Latitude and longitude of viewpoint (3-D case)
angle- int
        [0]     Longitude of floating label(3-D case)
reverse- char
        [n]     this mirrors the label left-right
scale0- float
        [1.]    Scale factor for x0, y0.
scalet- float
        [1.]    Scale factor for xt, yt. 
        (If 'length' option not set.)
length- float
        if specified, sets the normalization for xt, yt.
boxit- int
       [1] Whether (1) or not (0) to create a box arround text
pointer- int
       [0] Wheter (1)  or not (0) to create arrow
x_oval- float
       [0.] X axis length oval to create arround pointer location
y_oval- float
       [0.] Y axis length oval to create arround pointer location


COMPILE LEVEL

 DISTR


CATEGORY

sep_graphics