#!F-adobe-helvetica-medium-r-normal--18*
#!N 
#!N  #!Rcolrmap Colormap #!N #!N Category #!N #!N  #!Lcatspe,dxall761 h Special  #!EL  
#!N #!N Function #!N #!N Produces a color map. #!N #!N 
Syntax Available only through the user interface. #!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 data TAB field TAB none TAB object used 
to derive min or max #!N TAB min TAB scalar TAB 
min of data TAB minimum of color-map range #!N TAB max 
TAB scalar TAB max of data TAB maximum of color-map range 
#!N TAB nbins TAB integer TAB 20 TAB number of bins 
in the histogram #!N TAB colormap TAB field or group TAB 
none TAB RGB color map to be used #!N TAB opacity 
TAB field TAB none TAB opacity map to be used #!N 
TAB title TAB string TAB "Colormap Editor" TAB title of editor 
#!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 rgb TAB field TAB RGB color field #!N 
TAB opacity TAB field TAB opacity field #!N TAB - TAB 
- TAB #!EF #!N #!N Functional Details #!N #!N This interactive 
module allows the user to create color maps that are applied 
to data. Through inputs to the module (either the outputs of 
other tools or values set in its configuration dialog box), the 
Colormap Editor can be "data driven." If it is not data 
driven, then the attributes (such as  #!F-adobe-times-bold-r-normal--18*   min #!EF and  #!F-adobe-times-bold-r-normal--18*   
max #!EF ) are taken from values set by the user 
in the Colormap Editor. Note: The Colormap Editor itself is invoked 
by double-clicking on the module's icon in the VPE window. The 
module's configuration dialog box is accessed from the  #!F-adobe-times-bold-r-normal--18*   Edit #!EF 
pull-down menu in the same window. #!N #!I0 #!N #!N #!I0 
#!N  #!F-adobe-times-bold-r-normal--18*    #!F-adobe-times-bold-r-normal--18*   data #!EF #!EF #!I50 #!N input can be 
used to derive the minimum and maximum values in the color 
and opacity maps. If this parameter is specified, a histogram of 
the "data" component becomes available in the Colormap Editor. #!N #!I0 
#!N  #!F-adobe-times-bold-r-normal--18*    #!F-adobe-times-bold-r-normal--18*   min #!EF #!EF #!I50 #!N sets the minimum 
value used in the color and opacity maps. If this parameter 
is specified, it overrides the minimum value set by  #!F-adobe-times-bold-r-normal--18*   data 
#!EF . If neither  #!F-adobe-times-bold-r-normal--18*   min #!EF nor  #!F-adobe-times-bold-r-normal--18*   data #!EF 
is specified, the value is set in the minimum field of 
the Colormap Editor dialog box. #!N #!I0 #!N  #!F-adobe-times-bold-r-normal--18*    #!F-adobe-times-bold-r-normal--18*   max 
#!EF #!EF #!I50 #!N sets the maximum value in the color 
and opacity maps. If this parameter is specified, it overrides the 
maximum value set by  #!F-adobe-times-bold-r-normal--18*   data #!EF . If neither  #!F-adobe-times-bold-r-normal--18*   
max #!EF nor  #!F-adobe-times-bold-r-normal--18*   data #!EF is specified, the value is 
set in the maximum field of the Colormap Editor dialog box. 
#!N #!I0 #!N  #!F-adobe-times-bold-r-normal--18*    #!F-adobe-times-bold-r-normal--18*   nbins #!EF #!EF #!I50 #!N specifies 
the number of data bins in the histogram displayed by the 
Colormap Editor. A value of 0 indicates that the histogram should 
not be computed. The histogram is accessible through the  #!F-adobe-times-bold-r-normal--18*   Axis 
Display #!EF in the  #!F-adobe-times-bold-r-normal--18*   Options #!EF pull-down menu in the 
Colormap Editor. #!N #!I0 #!N  #!F-adobe-times-bold-r-normal--18*    #!F-adobe-times-bold-r-normal--18*   colormap #!EF #!EF #!I50 
#!N specifies the color map used to initialize the color-map portion 
of the Colormap Editor. For example, the map may be an 
imported .cm file, which contains both a color and an opacity 
map. If this file is passed to the  #!F-adobe-times-bold-r-normal--18*   colormap #!EF 
parameter, both maps will be used to initialize the maps in 
the editor. Alternatively, a simple map field can be passed to 
the appropriate parameter(s). #!N #!N Note that only the color information 
of the map is used to initialize the Colormap Editor; the 
"positions" component of the map (representing the data range to which 
the colors apply) are ignored. This is to allow a colormap 
to be used for any input data set which may be 
passed to the  #!F-adobe-times-bold-r-normal--18*   data #!EF parameter; the range of the 
map will be taken from  #!F-adobe-times-bold-r-normal--18*   data #!EF , rather than 
from the colormap. If you want to use the actual "positions" 
of the colormap, then simply use Mark to mark the "positions" 
component of the colormap, and pass the output of Mark to 
the  #!F-adobe-times-bold-r-normal--18*   data #!EF parameter of Colormap. #!N #!I0 #!N  #!F-adobe-times-bold-r-normal--18*   
 #!F-adobe-times-bold-r-normal--18*   opacity #!EF #!EF #!I50 #!N specifies the opacity map used 
to initialize the opacity-map portion of the Colormap Editor. #!N #!I0 
#!N  #!F-adobe-times-bold-r-normal--18*    #!F-adobe-times-bold-r-normal--18*   title #!EF #!EF #!I50 #!N specifies the title 
of the Colormap Editor window. #!I0 #!N #!N #!N #!N Example 
Visual Programs #!CForestGreen #!N #!N  #!F-adobe-courier-bold-r-normal--18*   #!N UsingColormaps.net #!N VolumeRendering.net #!EF 
#!N #!N #!EC #!N #!N An example that uses a data-driven 
Colormap is: #!CForestGreen #!N #!N  #!F-adobe-courier-bold-r-normal--18*   #!N DataDrivenInteractors.net #!EF #!N #!N 
#!EC #!N #!N See Also #!N #!N  #!Lautocol,dxall772 h AutoColor  #!EL  ,  #!Lcolor,dxall792 h Color  #!EL  #!N 
#!N #!N  #!F-adobe-times-medium-i-normal--18*   Next Topic #!EF #!N #!N  #!Lcompute,dxall795 h Compute  #!EL  #!N  #!F-adobe-times-medium-i-normal--18*   
#!N 
