-------------------------------------------------------------------------- To subscribe/unsubscribe to the hdfnews mailing list, please send your request to ncsalist@ncsa.uiuc.edu with the appropriate command (e.g. subscribe hdfnews, unsubscribe hdfnews, help) in the *body* of the message. -------------------------------------------------------------------------- Newsletter #22 September 19, 1996 Contents -------- JAVA-based HDF browser available Support for IRIX 6.2 Creating MIPS4 code for IRIX 6.2 on the Power Challenge Win_NT release of HDF4.0r2 FTP server changes New contributions hdfnews mailing list JAVA-based HDF browser available -------------------------------- A prototype JAVA-based HDF browser is currently available on the HDF information server. Please check http://hdf.ncsa.uiuc.edu/hdf/java/docs for more information. The browser provides the following features: . Displays the structure of an HDF file using different icons for the object types . Allows a user to ``descend'' levels of vgroups by clicking on vgroups (represented as folders) . Displays information about objects, such as the dimensions of an SDS and the names and values of its attributes. . For 2-D arrays (SDS and raster images), displays a subsampled image, and also allows a user to look at the image in its full resolution if desired in the separate window. . For 3-D arrays (SDS) supports animation through the first dimension, including simple animation controls such as animation speed, single stepping, and backward and forward animation. . Displays a spreadsheet for SDS and GR objects. Allows the user to outline a rectangular section of an image and creates the corresponding spreadsheet. Also allows one to highlight a region in a spreadsheet then draws the corresponding rectangle on the image. . Makes a basic scaled or interpolated image for the highlighted datasets with a user-provided expansion factor. . Displays a spreadsheet for a vdata object. The current version of the browser has been tested on the following Java enabled platforms: Solaris 2.5 IRIX 5.3 Linux-elf DEC/Alpha Support for IRIX 6.2 -------------------- Though HDF 4.0r2 is not officially supported on IRIX 6.2, it has been tested on a Power Challenge running IRIX 6.2 and appears to run properly. Currently, this is the only IRIX 6.2 machine on which 4.0r2 has been tested. The HDF 4.0r2 binaries for IRIX 6.1 provided on our ftp server will run properly on the Power Challenge running IRIX 6.2. Creating MIPS4 code for IRIX 6.2 on the Power Challenge ------------------------------------------------------- When running HDF4.0r2 under IRIX 6.2, users need to specify the compile option -mips4 as well as -n32 to create MIPS4 code. For Irix 6.1, the OS with which HDF 4.0r2 is compiled, the -n32 option implies MIPS4 code. For Irix 6.2, -n32 alone implies MIPS3 code. We plan to include the -mips4 option as well as the -n32 option in our next release. In the meantime, users are advised to use "-n32 -mips4" together, even if they are working on an IRIX 6.1 system. Rest assured that the binary release of HDF 4.0r2 for Irix6.1_n32 is MIPS4 code. Win_NT release of HDF4.0r2 -------------------------- An HDF 4.0 release 2 distribution for Windows NT/95 is available on the ftp server in HDF/HDF_Current/zip/. FTP server changes ------------------ /HDF/HDF_Current/tar/ contains the packed source code for the latest release of HDF. We have added a gzip-compressed tar file, which is considerably smaller than the standard unix "compress"ed (.Z) version, as well as a directory of source code which has been tar'ed, gzip'ed, and chopped into 100Kb pieces. /HDF/HDF_Current/bin/ contains pre-compiled code for the latest release of HDF. It contains a directory for each platform, under which we have replaced the "compress"ed (.Z) tar file of the entire HDF distribution with a smaller gzip-compressed tar file. We did this in the interest of space and ftp transfer time, however if this poses a problem for anyone, please let us know at hdfhelp@ncsa.uiuc.edu. We also created a "utilities" subdirectory under each /HDF/HDF_Current/bin/ directory which contains binaries of the individual HDF utilities for the corresponding platform. New contributions ----------------- Thank you to Ralph Schleicher, Robert Pincus, Russ Rew, and Yotam Medini for their contributions to the HDF community. They are available on the HDF ftp server in HDF/contrib/. Ralph Schleicher has contributed his shared HDF4.0r1p1 libdf.a and libmfhdf.a libraries compiled with Linux 1.2.3 (ELF). A pointer to these libraries is located in the subdirectory LINUX/4.0r1p1_shared/README. Robert Pincus (Robert.Pincus@gsfc.nasa.gov) and Russ Rew (russ@unidata.ucar.edu) have contributed a Fortran-90 module for netcdf. If you use the netCDF API to access the HDF library, you can use this module instead of including netcdf.inc in your F90 program. The contributed software is in subdirectory F90_netCDF/. Yotam Medini (yotam@sj-coop.net) has contributed hdfv 1.3. The hdfv 1.3 tool is an HDF read-only interface via TCL. It contains "tclhdf" and "hdfv". "tclhdf" is a simple extension of tclsh, with HDF's Vgroup/Vdata queries. "hdfv" is an HDF-Viewer with a GUI based on Tk. Currently, it only supports the Vgroup/Vdata model. The contribution is in subdirectory hdfv/. hdfnews mailing list -------------------- If you wish to be added to or removed from the "hdfnews" mailing list, send an e-mail message to ncsalist@ncsa.uiuc.edu with the appropriate command in the body of the message. Commands in the subject line are NOT processed. Valid commands include: subscribe hdfnews [
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