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#!F-adobe-helvetica-medium-r-normal--18*
#!N
#!N #!Rribbon Ribbon #!N #!N Category
#!N #!N #!Lcatann,dxall752 h Annotation #!EL #!N #!N Function #!N #!N Produces a ribbon
of specified width from a specified line. #!N #!N Syntax #!F-adobe-times-bold-r-normal--18*
ribbon #!EF = Ribbon( #!F-adobe-times-bold-r-normal--18* line, width #!EF ); #!N #!N
Inputs #!T,1,91,276,461,646 #!F-adobe-times-medium-r-normal--14* #!F-adobe-times-bold-r-normal--18* #!N TAB Name TAB Type TAB Default
TAB Description #!EF #!N TAB line TAB field TAB none TAB
line to be drawn as a ribbon #!N TAB width TAB
scalar TAB input dependent TAB ribbon width #!N TAB - TAB
- TAB - TAB #!EF #!N #!N Outputs #!T,1,161,321,646 #!F-adobe-times-medium-r-normal--14* #!F-adobe-times-bold-r-normal--18*
#!N TAB Name TAB Type TAB Description #!EF #!N TAB ribbon
TAB field TAB the line turned into a ribbon #!N TAB
- TAB - TAB #!EF #!N #!N Functional Details #!N #!N
This module is intended for use with any module that creates
lines. #!N #!I0 #!N #!N #!I0 #!N #!F-adobe-times-bold-r-normal--18* #!F-adobe-times-bold-r-normal--18* line #!EF
#!EF #!I50 #!N specifies a line to be turned into a
ribbon. If this line has a "normals" component (as would occur,
for example, if the input field #!F-adobe-times-bold-r-normal--18* curl #!EF were used
with Streamline), the resulting ribbon shows a twist corresponding to this
component (at each point of the input line, the ribbon is
oriented in the direction pointed to by the normal). #!N #!N
If a "normals" component is not found but the input contains
a "binormals" component, normals are derived by crossing the binormals with
the approximated tangents. #!N #!N If no "normals" component is present,
the ribbon's orientation is based on the path of the line.
#!N #!I0 #!N #!F-adobe-times-bold-r-normal--18* #!F-adobe-times-bold-r-normal--18* width #!EF #!EF #!I50 #!N specifies
the width of the ribbon in the same units as those
of the original space. If this parameter is not specified, the
system provides an appropriate value (1/50 of the diagonal of the
bounding box of #!F-adobe-times-bold-r-normal--18* line #!EF ). #!N #!N The value
used is attached to the output object as a "Ribbon width"
attribute (which can be extracted with the Attribute module). #!I0 #!N
#!N Note: Different colors can be specified for the two sides
of the ribbon. Use the Color module and specify "front colors"
and "back colors." #!N #!N Components #!N #!N Creates new "positions,"
"connections," and "normals" components. All other components are propagated to the
output. #!N #!N Example Visual Programs #!CForestGreen #!N #!N #!F-adobe-courier-bold-r-normal--18* #!N
ThunderStreamlines.net #!N UsingStreakline.net #!EF #!N #!N #!EC #!N #!N See Also
#!N #!N #!Lcolor,dxall792 h Color #!EL , #!Lstreakl,dxall954 h Streakline #!EL , #!Lstreaml,dxall955 h Streamline #!EL , #!Ltube,dxall971 h Tube #!EL #!N #!N
#!N #!F-adobe-times-medium-i-normal--18* Next Topic #!EF #!N #!N #!Lrotate,dxall928 h Rotate #!EL #!N #!F-adobe-times-medium-i-normal--18* #!N
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