#!F-adobe-helvetica-medium-r-normal--18*
#!N 
#!CSeaGreen #!N  #!Rtstmln3 Streamlines #!N #!EC 
#!N #!N The  #!F-adobe-times-bold-r-normal--18*   Streamline #!EF module traces the path of 
a massless particle through a static velocity field. #!N #!I0 #!N 
 #!F-adobe-times-medium-r-normal--18*   #!N #!N #!I30 #!N 1. Open and execute visual program 
.../Streamlines3D.net. The image is a translucent isosurface with a single streamline 
starting from the point [25000 5000 25000] (as specified in the 
 #!F-adobe-times-bold-r-normal--18*   Streamline #!EF module's configuration dialog box). This streamline can be 
transformed into a ribbon: #!N #!I30 #!N 2. Select  #!F-adobe-times-bold-r-normal--18*   Annotation 
#!EF in the categories palette and then  #!F-adobe-times-bold-r-normal--18*   Ribbon #!EF in 
the tools palette. #!N #!I30 #!N 3. Position the  #!F-adobe-times-bold-r-normal--18*   Ribbon 
#!EF icon below  #!F-adobe-times-bold-r-normal--18*   Streamline #!EF in the VPE canvas. #!N 
#!I30 #!N 4. Disconnect  #!F-adobe-times-bold-r-normal--18*   Streamline #!EF output from  #!F-adobe-times-bold-r-normal--18*   Collect 
#!EF input and reconnect it to  #!F-adobe-times-bold-r-normal--18*   Ribbon #!EF input. #!N 
#!I30 #!N 5. Connect  #!F-adobe-times-bold-r-normal--18*   Ribbon #!EF output to  #!F-adobe-times-bold-r-normal--18*   Collect 
#!EF input. #!N #!I30 #!N 6. Reexecute the visual program. The 
streamline changes to a ribbon. #!N #!I0 #!N #!EF #!N #!N 
#!N If you want the twist of the ribbon to represent 
the vorticity of the wind field: #!N #!I0 #!N  #!F-adobe-times-medium-r-normal--18*   #!N 
#!N #!I30 #!N 1. Open the  #!F-adobe-times-bold-r-normal--18*   Streamline #!EF configuration dialog 
box. #!N #!I30 #!N 2. Change the  #!F-adobe-times-bold-r-normal--18*   flag #!EF parameter 
value from "(input dependent)" to "1" and click on  #!F-adobe-times-bold-r-normal--18*   OK 
#!EF .  #!F-adobe-times-bold-r-normal--18*   Streamline #!EF computes the degree of twist from 
the vorticity of the wind field. #!N #!I30 #!N 3. Reexecute 
the visual program. The twist is greater in regions of higher 
wind vorticity. #!N #!I0 #!N #!EF #!N #!N #!N To make 
the color of the ribbon correspond to wind velocity: #!N #!I0 
#!N  #!F-adobe-times-medium-r-normal--18*   #!N #!N #!I30 #!N 1. Select  #!F-adobe-times-bold-r-normal--18*   Transformation #!EF 
and then  #!F-adobe-times-bold-r-normal--18*   AutoColor #!EF in the palettes. #!N #!I30 #!N 
2. Position the  #!F-adobe-times-bold-r-normal--18*   AutoColor #!EF icon between  #!F-adobe-times-bold-r-normal--18*   Ribbon #!EF 
and  #!F-adobe-times-bold-r-normal--18*   Collect #!EF in the VPE canvas. #!N #!I30 #!N 
3. Disconnect the  #!F-adobe-times-bold-r-normal--18*   Ribbon #!EF output from the  #!F-adobe-times-bold-r-normal--18*   Collect 
#!EF input and reconnect it to the first (leftmost) input of 
 #!F-adobe-times-bold-r-normal--18*   AutoColor #!EF . Note: Both input tabs can accept a 
connection, but the semi-highlighting indicates  #!F-adobe-times-medium-i-normal--18*   required #!EF input (i.e., the 
module cannot function without it). #!N #!I30 #!N 4. Connect the 
first (leftmost) output of  #!F-adobe-times-bold-r-normal--18*   AutoColor #!EF to the available input 
of  #!F-adobe-times-bold-r-normal--18*   Collect #!EF . #!N #!I30 #!N 5. Reexecute the 
visual program. Note the variation of color in the ribbon. #!N 
#!N See Ribbon and Streamline in IBM Visualization Data Explorer User's 
Reference. #!N #!I0 #!N #!EF #!N #!N #!N #!N  #!F-adobe-times-medium-i-normal--18*   Next 
Topic #!EF #!N #!N  #!Lt3dsgly,dxall53 h 3-D Scalar Glyphs  #!EL  #!N  #!F-adobe-times-medium-i-normal--18*   #!N 
