#!F-adobe-helvetica-medium-r-normal--18*
#!N
#!CSeaGreen #!N
#!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