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Name
tub — Tube generation
Syntax
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tub [size] [las] [col] [dra] [sav] [vesc] [nsi] [map] |
Description
Polygon display in tube mode.
Arguments
No argument. Draw a tube for polydata using default settings.
size
Apply size of tube, relative to 1.
sav
Will save the graphics of the tube as a dataset.
vesc [factor]
Vary size by scalars. Will draw the tube according to the scalar values. Used in 3D log display.
To set up a size directly in meters use a negative value; i.e. tub -200 vesc $vfac -- will display the tube with a max size of approximately 200 meters.
vfac is calculated like this:
set hmm [gvar doublebr 489] ; # get millimeter i x direction
set kmm 200 ; # the tube size in this example
set vfac [expr $kmm / $hmm] ; # the scalar factor in this example
las
Draw the last line back to first point in the cell.
cel
Tube the cells independently.
col [ran]
Tube the cells with color shift (at random).
nsi [number_of_sides]
Specify number_of_sides in the tube.
map
Map the scalars of the tube data.
Examples
Ex.1: Random lines displayed as tubes
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z ;# Erase screen
win demo ;# Get demo window (450000 460000 6450000 6460000 1000 4000)
spe bgc whi ;# Specify background color to white
mak ran 6 ;# Make random points
cur sav nodraw ;# Generate spline curve
col red ;# Red color
tub 10 ;# Tube the line
mak ran 7 ;# Make random points
cur sav nodraw ;# Generate spline curve
col gre ;# Green color
tub 15 ;# Tube the line
mak ran 5 ;# Make random points
cur sav nodraw ;# Generate spline curve
col tur ;# Turqouise color
tub 23 ;# Tube the line
{noformat}
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The
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above
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example
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produces
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this
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image.
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Random lines displayed as tubes
See also
cur - Curve display, dis - Display active dataset, pot - Polygon with tube