dx-doc 1:4.4.4-7 / usr / share / doc / dx / help / dxall763

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 #!Rcattrn Transformation #!N #!EC #!N #!N These tools generally modify or 
add to components of the input Field without changing its underlying 
positions and connections. For example, AutoColor creates a "colors" component based 
on the data values of a Field and Compute performs a 
mathematical operation on the "data" component of a Field. #!N #!I0 
#!N #!N #!I0 #!N  #!F-adobe-times-bold-r-normal--18*    #!Lautocol,dxall772 h AutoColor  #!EL  #!EF #!I50 #!N Automatically colors 
a data Field. By default, the minimum data value is blue, 
the maximum data value is red, and data values between are 
blue to red through cyan, green, and yellow. You can control 
what subset of the data range to color and what portion 
of the color wheel to use. You can also control the 
opacity of the object and the intensity of the colors. AutoColor 
also chooses appropriate colors and opacities for volume rendering. #!N #!I0 
#!N  #!F-adobe-times-bold-r-normal--18*    #!Lautogra,dxall777 h AutoGrayScale  #!EL  #!EF #!I50 #!N Automatically colors a data field 
using a gray scale. #!N #!I0 #!N  #!F-adobe-times-bold-r-normal--18*    #!Lcategor,dxall782 h Categorize  #!EL  #!EF #!I50 
#!N Categorizes data, creating an integer data component along with a 
lookup table into which the integers reference. #!N #!I0 #!N  #!F-adobe-times-bold-r-normal--18*   
 #!Lcategst,dxall783 h CategoryStatistics  #!EL  #!EF #!I50 #!N Performs various statistics such as minimum, maximum, 
number of items, etc., on categorical data. #!N #!I0 #!N  #!F-adobe-times-bold-r-normal--18*   
 #!Lcolor,dxall792 h Color  #!EL  #!EF #!I50 #!N Allows you more control over the coloring 
of an object than is possible with AutoColor. You can specify 
a string representing a color (e.g., "spring green"), an RGB color, 
or a color map (from the Colormap Editor, for example) to 
be applied to a data Field. You can also use the 
Color module to make objects (e.g., isosurfaces) translucent. #!N #!I0 #!N 
 #!F-adobe-times-bold-r-normal--18*    #!Lcompute,dxall795 h Compute  #!EL  #!EF #!I50 #!N Performs point-by-point arithmetic on a Field 
or Fields. For example, it can add the "data" component of 
one Field to the tangent of the "data" component of another 
Field. You can also use the Compute module to select components 
from a vector data Field; construct a vector "data" component from 
a set of scalar input data Fields; or perform conditional operations. 
#!N #!I0 #!N  #!F-adobe-times-bold-r-normal--18*    #!Lcomput2,dxall796 h Compute2  #!EL  #!EF #!I50 #!N Differs from Compute 
in allowing the expression to be passed in by means of 
an input tab (e.g., from a Selector interactor). #!N #!I0 #!N 
 #!F-adobe-times-bold-r-normal--18*    #!Lconvert,dxall799 h Convert  #!EL  #!EF #!I50 #!N Converts between hue, saturation, and value 
color space and red, green, and blue color space. You can 
convert either a single vector, a list of vectors, or a 
color map. #!N #!I0 #!N  #!F-adobe-times-bold-r-normal--18*    #!Ldft,dxall801 h DFT  #!EL  #!EF #!I50 #!N Performs 
a discrete Fourier transformation on a 2- or 3-dimensional field. #!N 
#!I0 #!N  #!F-adobe-times-bold-r-normal--18*    #!Ldirect,dxall806 h Direction  #!EL  #!EF #!I50 #!N Converts azimuth, elevation, and 
distance to Cartesian coordinates (x, y, and z), which are useful 
for specifying camera viewing directions and for specifying ClipPlane or MapToPlane 
normal directions. #!N #!I0 #!N  #!F-adobe-times-bold-r-normal--18*    #!Ldivcurl,dxall827 h DivCurl  #!EL  #!EF #!I50 #!N Computes 
the divergence and the curl of a vector field. #!N #!I0 
#!N  #!F-adobe-times-bold-r-normal--18*    #!Lequaliz,dxall831 h Equalize  #!EL  #!EF #!I50 #!N Applies histogram equalization to a 
field. #!N #!I0 #!N  #!F-adobe-times-bold-r-normal--18*    #!Lfft,dxall846 h FFT  #!EL  #!EF #!I50 #!N Performs a 
fast Fourier transformation on a 2- or 3-dimensional field. #!N #!I0 
#!N  #!F-adobe-times-bold-r-normal--18*    #!Lfilter,dxall849 h Filter  #!EL  #!EF #!I50 #!N Filters a Field. You can 
specify a name describing a filter (e.g., "laplacian") or a filter 
matrix explicitly. #!N #!I0 #!N  #!F-adobe-times-bold-r-normal--18*    #!Lgradien,dxall857 h Gradient  #!EL  #!EF #!I50 #!N Computes 
the gradient of a scalar Field. #!N #!I0 #!N  #!F-adobe-times-bold-r-normal--18*    #!Lhistogr,dxall859 h Histogram  #!EL  
#!EF #!I50 #!N Computes a histogram and the median of an 
input data Field. You can then use Plot to visualize the 
result as a 2-dimensional graph. #!N #!I0 #!N  #!F-adobe-times-bold-r-normal--18*    #!Llookup,dxall886 h Lookup  #!EL  #!EF 
#!I50 #!N Uses one object to look up the value of 
another object in a field. #!N #!I0 #!N  #!F-adobe-times-bold-r-normal--18*    #!Lmap,dxall891 h Map  #!EL  #!EF 
#!I50 #!N Maps Fields onto one another. For example, you can 
map a data Field onto an isosurface or onto a tube 
that has been formed from a streamline. #!N #!I0 #!N  #!F-adobe-times-bold-r-normal--18*   
 #!Lmeasure,dxall894 h Measure  #!EL  #!EF #!I50 #!N Performs measurements (e.g., surface area or volume) 
on a data Object. #!N #!I0 #!N  #!F-adobe-times-bold-r-normal--18*    #!Lmorph,dxall896 h Morph  #!EL  #!EF #!I50 
#!N Applies a binary morphological operator, such as erode or dilate. 
#!N #!I0 #!N  #!F-adobe-times-bold-r-normal--18*    #!Lpost,dxall910 h Post  #!EL  #!EF #!I50 #!N Changes the dependency 
of data (and other components) between positions and connections. #!N #!I0 
#!N  #!F-adobe-times-bold-r-normal--18*    #!Lqantimg,dxall914 h QuantizeImage  #!EL  #!EF #!I50 #!N Converts an image from a 
format containing (potentially) as many colors as pixels to a quantized 
image with a color map with a user-specified number of colors 
between 8 and 256. #!N #!I0 #!N  #!F-adobe-times-bold-r-normal--18*    #!Lsort,dxall951 h Sort  #!EL  #!EF #!I50 
#!N Sorts a list or Field based on values in the 
data component. #!N #!I0 #!N  #!F-adobe-times-bold-r-normal--18*    #!Lstatist,dxall953 h Statistics  #!EL  #!EF #!I50 #!N Computes 
the statistics of a Field: the mean, standard deviation, variance, minimum, 
and maximum. You can use these statistics as input for other 
modules, or print them using the Echo or Print modules. #!I0 
#!N #!N #!N #!N #!N  #!F-adobe-times-medium-i-normal--18*   Next Topic #!EF #!N #!N 
 #!Lcatwin,dxall764 h Windows  #!EL  #!N  #!F-adobe-times-medium-i-normal--18*   #!N