#!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
Generated by dwww version 1.15 on Sat Jun 22 12:59:18 CEST 2024.