/usr/share/doc/dx/help/dxall187 is in dx-doc 1:4.4.4-9.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 | #!F-adobe-helvetica-medium-r-normal--18*
#!N
#!CSeaGreen #!N #!Rall186 How the Data Model Facilitates Interoperability #!N #!EC
#!N #!N The Data Explorer data model is not simply a
convenient way to represent data objects. It also allows Data Explorer
tools to be more powerful than they would be otherwise. #!N
#!N Tools can be used in multiple ways, because the components
of the data set are described using a common structure. There
is no distinction between "data," "positions," and "colors" in how they
are represented within a Data Explorer field object. (For more information
on Data Explorer fields, see #!Ldatmod,dxall197 h Understanding the Data Model #!EL .) For example, you can
use the Compute module to operate on the data to extract
the magnitude, or x component of a vector (e.g., operate on
the positions of a grid to warp the grid or on
the colors of a field to negate an image). This also
means that the user has the capability of modifying or inspecting
all aspects of a data object. #!N #!N Tools can be
used on any object in Data Explorer; there is no distinction
between "data objects" and "geometry objects." An isosurface or an image
is represented in the same way in which an imported data
field is represented. So for example, you can: #!N #!I0 #!N
#!F-adobe-times-medium-r-normal--18* #!N #!N #!I30 #!N o create an isosurface (contour lines)
of a mapped isosurface #!N #!I30 #!N o create an isosurface
from an image #!N #!I30 #!N o map onto glyphs, streamlines,
isosurfaces, etc. #!N #!I0 #!N #!EF #!N The Data Model also
ensures that the fidelity of the original data is maintained throughout
the visualization process. In particular, all of the following are preserved
throughout: #!N #!I0 #!N #!F-adobe-times-medium-r-normal--18* #!N #!N #!I30 #!N o the
original coordinate space of the data #!N #!I30 #!N o the
original range of data values (not scaled to 0 to 255,
for example) #!N #!I30 #!N o attributes of the data (dependency
on positions or connections) #!N #!I30 #!N o the presence of
missing or invalid data. #!N #!I0 #!N #!EF #!N Finally, the
data model ensures that Data Explorer users and developers can add
new components or new attributes without modifying current modules. #!N #!N
#!N #!F-adobe-times-medium-i-normal--18* Next Topic #!EF #!N #!N #!Lvis,dxall188 h Introduction to Visualization #!EL #!N #!F-adobe-times-medium-i-normal--18* #!N
|