#!F-adobe-helvetica-medium-r-normal--18* #!N #!CSeaGreen #!N #!Rall158 Supported Formats #!N #!EC #!N #!I0 #!N #!N #!I0 #!N #!F-adobe-times-bold-r-normal--18* Data Explorer Format #!EF #!I50 #!N The Data Explorer format can be used to describe any object which can be represented in Data Explorer. Objects can be exported in the Data Explorer format using the Export module, and often filters are written to convert from other formats to the Data Explorer format. The Data Explorer format is described in detail in #!Ledf,dxall623 h Data Explorer Native Files #!EL in IBM Visualization Data Explorer User's Guide. #!N #!N The Data Explorer format is supported directly by the Import module (see #!Limport,dxall871 h Import #!EL IBM Visualization Data Explorer User's Reference). To create visual programs using data in this format, simply use the Import module, specifying the file name, and the format as "dx." #!N #!I0 #!N #!F-adobe-times-bold-r-normal--18* CDF Format #!EF #!I50 #!N CDF is a standard format, supported directly by the Import module. For more information on the CDF format, see #!Lcdf,dxall664 h CDF Files #!EL in IBM Visualization Data Explorer User's Guide. To create visual programs using data in this format simply use the Import module, specifying the cdf as the #!F-adobe-times-bold-r-normal--18* name #!EF parameter to Import, and specifying the format as "cdf." #!N #!I0 #!N #!F-adobe-times-bold-r-normal--18* netCDF Format #!EF #!I50 #!N netCDF is a standard format, supported directly by the Import module. For more information on the netCDF format, see #!Lnetcdf,dxall665 h netCDF Files #!EL in IBM Visualization Data Explorer User's Guide To create visual programs using data in this format simply use the Import module, specifying the file name as the #!F-adobe-times-bold-r-normal--18* name #!EF parameter to Import, and specifying the format as "netCDF." #!N #!I0 #!N #!F-adobe-times-bold-r-normal--18* HDF Format #!EF #!I50 #!N HDF is a standard format, supported directly by the Import module. Data Explorer supports HDF files that contain a Scientific Dataset (SDS). For more information on the HDF format, see #!Lhdf,dxall682 h HDF Files #!EL in IBM Visualization Data Explorer User's Guide. To create visual programs using data in this format simply use the Import module, specifying the file name as the #!F-adobe-times-bold-r-normal--18* name #!EF parameter to Import, and specifying the format as "hdf." #!N #!I0 #!N #!F-adobe-times-bold-r-normal--18* Image data #!EF #!I50 #!N Images in TIFF, MIFF, GIF, and RGB formats can be directly imported by the ReadImage module (see #!Lreadima,dxall915 h ReadImage #!EL in IBM Visualization Data Explorer User's Reference). To see the image, you need only to attach the output of ReadImage to first input of the Display module. You can of course manipulate the image with any of the appropriate Data Explorer modules. #!N #!I0 #!N #!F-adobe-times-bold-r-normal--18* Grid or Scattered Data (General Array format) #!EF #!I50 #!N Data Explorer can import a wide variety of gridded and scattered data using the General Array format. The basic procedure is to create a header file which describes the structure of the data (dimensionality, number of variables, layout in the file, etc.). The General Array Importer is described in detail in #!Lgai,dxall110 h General Array Importer #!EL . #!Lgaiexs,dxall114 h Importing Data: Header File Examples #!EL contains many examples illustrating the wide variety of data that can be imported. #!N #!N The Data Prompter greatly simplifies the task of creating a header file, as it performs extensive error checking (disallowing conflicting keywords, for example) and frees you from needing to know the exact syntax of the General Array format. When you use the Data Prompter to import this format, you will be asked to describe your data in detail. You need to then save the header file using #!F-adobe-times-bold-r-normal--18* Save As #!EF in the File menu of the Data Prompter Full or Simplified window. The data can then be visualized using one of the general purpose programs provided by the Data Prompter. #!N #!N To create new visual programs using data imported in this way, simply specify the name of the header file to the Import module, specifying the format as "general" (see #!Limport,dxall871 h Import #!EL in IBM Visualization Data Explorer User's Reference). #!N #!I0 #!N #!F-adobe-times-bold-r-normal--18* Spreadsheet Data #!EF #!I50 #!N Spreadsheet data is typically non-spatial data, arranged in columns. This type of data is supported by the ImportSpreadsheet module (see #!Limpspsh,dxall872 h ImportSpreadsheet #!EL in IBM Visualization Data Explorer User's Reference). #!I0 #!N #!N Note: For the formats directly supported by Import (Data Explorer, CDF, netCDF, HDF) or ImportSpreadsheet (spreadsheet data), it is not necessary to use the Data Prompter to import the data. You can simply use the Import or ImportSpreadsheet module and then add whatever visualization modules you want to look at the data. However, you can use the Data Prompter to give you easy access to the general purpose programs which get you "up and running" with a picture of your data. #!N #!N If you are importing your data using the General Array format, once you have created a header file (typically done by using the Data Prompter), you can import the header file directly using the Import module. #!N #!N #!N #!F-adobe-times-medium-i-normal--18* Next Topic #!EF #!N #!N #!Linitdb,dxall160 h Initial Dialog Box #!EL #!N #!F-adobe-times-medium-i-normal--18* #!N
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