From nobody Thu Sep 17 10:33:37 1998 Path: newsfeed.cv.nrao.edu!newsgate.duke.edu!nntprelay.mathworks.com!newsfeed.internetmci.com!208.139.82.2!news.ka.net!not-for-mail From: Robb Matzke Newsgroups: sci.data.formats Subject: ANNOUNCE: HDF5 beta release Date: 16 Sep 1998 14:19:07 -0400 Organization: Spizella Software Lines: 51 Message-ID: Reply-To: matzke@llnl.gov NNTP-Posting-Host: 91max2.ka.net X-Trace: web.ka.net 905971080 10200 207.51.90.91 (16 Sep 1998 18:38:00 GMT) X-Complaints-To: abuse@ka.net NNTP-Posting-Date: 16 Sep 1998 18:38:00 GMT X-Newsreader: Gnus v5.5/XEmacs 20.4 - "Emerald" Xref: newsfeed.cv.nrao.edu sci.data.formats:389 HDF5 is a new, experimental version of the Hierarchical Data Format (HDF) that is designed to address some of the limitations of the current version, HDF4, and to address current and anticipated requirements of modern systems and applications. The beta version of HDF5 is freely available in source format from ftp://hdf.ncsa.uiuc.edu/pub/DIST/HDF5/ and a web site is under construction at http://hdf.ncsa.uiuc.edu/HDF5/. We urge you to look at this new version of HDF and give us feedback on what you like or do not like about it, and what features you would like to see added to it. Why HDF5? The development of HDF5 is motivated by a number of limitations in the current HDF format, as well as limitations in the library. Some of the improvements upon HDF4 are: * A file can have a 64-bit address space and be a single file or a collection of smaller files (HDF4 files were limited to 2GB). * Dataset sizes are 64-bit quantities and the number of datasets per file is limited only by the file size (HDF4 allowed at most 20,000 complex objects in a 2GB file). * HDF5 has a simpler, more comprehensive data model that includes only a few basic classes: datasets, spaces, types, groups, and files (the HDF4 data model had inconsistencies and more classes than necessary). * HDF5 was designed with an object oriented philosophy and the source size is approx. 1/3 of HDF4 but includes all the major functionality of HDF4. * HDF5 supports parallel I/O effectively using MPI-IO. The beta release includes most of the basic functionality that is planned for the first release of the HDF5 library. However, the library does not implement all of the features detailed in the format and API specifications. Here is a listing of some of the limitations of the current release: * Some functions for manipulating data spaces have not been implemented. * Some data types such as variable length types, pointers, and times are not yet implemented. * Deletion (unlinking) and renaming objects is not yet implemented. * The library is not currently thread aware although we have planned for that possibility and intend eventually to implement it. -- Robb Matzke L-170 #include Lawrence Livermore National Laboratory Voice/Fax: +1 812 949 7318 Livermore, CA 94550 Cellular: +1 502 396 8547 From nobody Mon Sep 21 18:13:42 1998 Path: newsfeed.cv.nrao.edu!newsgate.duke.edu!newsfeed.berkeley.edu!agate!dog.ee.lbl.gov!overload.lbl.gov!news From: "Edward J. Moler" Newsgroups: sci.data.formats Subject: Re: Digitalizing plots? Date: Mon, 21 Sep 1998 14:46:52 -0700 Organization: Lawrence Berkeley Laboratory Lines: 10 Message-ID: <3606C94C.16D05B50@lbl.gov> References: <35e27eba.545254@news.jet.es> <35E77D92.93090E04@goeppingen.netsurf.de> NNTP-Posting-Host: ras1-16.lbl.gov Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Mailer: Mozilla 4.05 [en] (Win95; U) Xref: newsfeed.cv.nrao.edu sci.data.formats:392 Howdy, There is a Macintosh program called DataThief that does exactly what you want. Check the archives. EJM > I am looking for a freeware or shareware program for > > digitalizing plots. In other words, I have a sheet of paper with a > > plot, I have scanned it and so I got a .gif file with a function plot. > > I am looking for a program capable of reading a graphic file and then > > writing a new file with the coordinates of the points in the plot. From nobody Tue Sep 22 11:00:24 1998 Newsgroups: sci.data.formats Path: newsfeed.cv.nrao.edu!newsgate.duke.edu!nntprelay.mathworks.com!ix.netcom.com!lpurple From: lpurple@netcom.com (Lance Purple) Subject: Re: crack out ur brain for this one Message-ID: Organization: Netcom References: <35FB6D6F.7AE47E57@mailcity.com> <6tij1h$1538$1@news.net.uni-c.dk> Date: Mon, 21 Sep 1998 23:43:05 GMT Lines: 30 Sender: lpurple@netcom13.netcom.com Xref: newsfeed.cv.nrao.edu sci.data.formats:396 > lets start i have a value from 0 to 5 and i would like to fit this > into 2.5 bits and get it back again later now sense there is no such > thing as 2.5 bits i need a way to encode 2 values could be any where > from 0 to 5 into 5 bits? You can't pack two [0..5] values into five bits, because there are six possibilities for each value, and 6x6 is more than 32. But you -can- pack three [0..5] values into eight bits, because 6x6x6 is less than 256. Pack the values like so: Multiply first value by 36 Multiply second value by 6, add Multiply third value by 1, add So [4,2,3] --> (4x36)+(2x6)+3 --> 159, etc. To unpack, divide by 36 to get first value, divide remainder by 6 to get second value divide remainder of -that- by 1 to get third value 159 / 36 = 4 remainder 15 --> 15 / 6 = 2 remainder 3 --> 3 / 1 3 Hope that helps. .----------------------------. | lpurple at netcom dot com | '----------------------------' From nobody Tue Sep 29 11:16:57 1998 Path: newsfeed.cv.nrao.edu!newsgate.duke.edu!nntprelay.mathworks.com!newsfeed.berkeley.edu!newsfeed.wli.net!newsfeed.frii.net!news.psd.k12.co.us!csn!nntp-xfer-2.csn.net!yuma!usenet From: "Tom Hilinski" Newsgroups: sci.data.formats Subject: Re: BMP file format. Could you help? Date: Mon, 28 Sep 1998 17:24:12 -0600 Organization: Colorado State University, Fort Collins, CO 80523 Lines: 102 Message-ID: <6up5sv$60o6@yuma.ACNS.ColoState.EDU> References: <360e9c2d.7681980@news.demon.co.uk> NNTP-Posting-Host: dialup0382.ppp.colostate.edu Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Newsreader: Microsoft Outlook Express 4.72.3155.0 X-MimeOLE: Produced By Microsoft MimeOLE V4.72.3155.0 Xref: newsfeed.cv.nrao.edu sci.data.formats:402 David wrote in message <360e9c2d.7681980@news.demon.co.uk>... >Greetings, > >Could someone here provide me with information on Windows BMP file >format? I would like to know what information are required, and in how >many bytes each in the header section. > >The only thing I know is that header info comes first, followed by the >image data... > >Thank you in advance. > >David The following is a page from the MS Windows "Programmer's guide to Windows 95": Bitmaps should be saved in a file that uses the established Windows format and assigned a name with the three-character .BMP extension. The established Windows format consists of a BITMAPFILEHEADER structure followed by a BITMAPINFOHEADER structure. An array of RGBQUAD structures (also called a color table) follows the BITMAPINFOHEADER structure. The color table is followed by a second array of indexes into the color table (the actual bitmap data). The Windows format is shown in the following illustration. The members of the BITMAPFILEHEADER structure identify the file; specify the size of the file, in bytes; and specify the offset from the first byte in the header to the first byte of bitmap data. The members of the BITMAPINFOHEADER structure specify the bitmap's width and height, in pixels; the color format (count of color planes and color bits per pixel) of the display device on which the bitmap was created; whether the bitmap data was compressed before storage and the type of compression used; the number of bytes of bitmap data; the resolution of the display device on which the bitmap was created; and the number of colors represented in the data. The RGBQUAD structures specify the RGB intensity values for each of the colors in the device's palette. The color-index array maps indices values from the RGBQUAD array to pixels in a rectangular region on the display. The following hexadecimal output shows the contents of the file REDBRICK.BMP. 0000 42 4d 76 02 00 00 00 00 00 00 76 00 00 00 28 00 0010 00 00 20 00 00 00 20 00 00 00 01 00 04 00 00 00 0020 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0030 00 00 00 00 00 00 00 00 00 00 00 00 80 00 00 80 0040 00 00 00 80 80 00 80 00 00 00 80 00 80 00 80 80 0050 00 00 80 80 80 00 c0 c0 c0 00 00 00 ff 00 00 ff 0060 00 00 00 ff ff 00 ff 00 00 00 ff 00 ff 00 ff ff 0070 00 00 ff ff ff 00 00 00 00 00 00 00 00 00 00 00 0080 00 00 00 00 00 00 00 00 00 00 00 00 00 00 09 00 0090 00 00 00 00 00 00 11 11 01 19 11 01 10 10 09 09 00a0 01 09 11 11 01 90 11 01 19 09 09 91 11 10 09 11 00b0 09 11 19 10 90 11 19 01 19 19 10 10 11 10 09 01 00c0 91 10 91 09 10 10 90 99 11 11 11 11 19 00 09 01 00d0 91 01 01 19 00 99 11 10 11 91 99 11 09 90 09 91 00e0 01 11 11 11 91 10 09 19 01 00 11 90 91 10 09 01 00f0 11 99 10 01 11 11 91 11 11 19 10 11 99 10 09 10 0100 01 11 11 11 19 10 11 09 09 10 19 10 10 10 09 01 0110 11 19 00 01 10 19 10 11 11 01 99 01 11 90 09 19 0120 11 91 11 91 01 11 19 10 99 00 01 19 09 10 09 19 0130 10 91 11 01 11 11 91 01 91 19 11 00 99 90 09 01 0140 01 99 19 01 91 10 19 91 91 09 11 99 11 10 09 91 0150 11 10 11 91 99 10 90 11 01 11 11 19 11 90 09 11 0160 00 19 10 11 01 11 99 99 99 99 99 99 99 99 09 99 0170 99 99 99 99 99 99 00 00 00 00 00 00 00 00 00 00 0180 00 00 00 00 00 00 90 00 00 00 00 00 00 00 00 00 0190 00 00 00 00 00 00 99 11 11 11 19 10 19 19 11 09 01a0 10 90 91 90 91 00 91 19 19 09 01 10 09 01 11 11 01b0 91 11 11 11 10 00 91 11 01 19 10 11 10 01 01 11 01c0 90 11 11 11 91 00 99 09 19 10 11 90 09 90 91 01 01d0 19 09 91 11 01 00 90 10 19 11 00 11 11 00 10 11 01e0 01 10 11 19 11 00 90 19 10 91 01 90 19 99 00 11 01f0 91 01 11 01 91 00 99 09 09 01 10 11 91 01 10 91 0200 99 11 10 90 91 00 91 11 00 10 11 01 10 19 19 09 0210 10 00 99 01 01 00 91 01 19 91 19 91 11 09 10 11 0220 00 91 00 10 90 00 99 01 11 10 09 10 10 19 09 01 0230 91 90 11 09 11 00 90 99 11 11 11 90 19 01 19 01 0240 91 01 01 19 09 00 91 10 11 91 99 09 09 90 11 91 0250 01 19 11 11 91 00 91 19 01 00 11 00 91 10 11 01 0260 11 11 10 01 11 00 99 99 99 99 99 99 99 99 99 99 0270 99 99 99 99 99 90 The following table shows the data bytes associated with the structures in a bitmap file. Structure Corresponding bytes BITMAPFILEHEADER 0x00 - 0x0D BITMAPINFOHEADER 0x0E - 0x31 RGBQUAD array 0x32 - 0x75 Color-index array 0x76 - 0x275 From nobody Tue Sep 29 11:17:04 1998 Path: newsfeed.cv.nrao.edu!newsgate.duke.edu!nntprelay.mathworks.com!btnet-peer!btnet!dispose.news.demon.net!demon!news.demon.co.uk!demon!wiskas.demon.co.uk!not-for-mail From: davidday@hotmail.com (David) Newsgroups: sci.data.formats Subject: Re: BMP file format. Could you help? Date: Tue, 29 Sep 1998 03:42:40 GMT Message-ID: <361156bf.27996778@news.demon.co.uk> References: <360e9c2d.7681980@news.demon.co.uk> <6up5sv$60o6@yuma.ACNS.ColoState.EDU> NNTP-Posting-Host: wiskas.demon.co.uk X-NNTP-Posting-Host: wiskas.demon.co.uk:193.237.129.47 X-Trace: news.demon.co.uk 907036961 nnrp-05:20899 NO-IDENT wiskas.demon.co.uk:193.237.129.47 X-Complaints-To: abuse@demon.net X-Newsreader: Forte Agent 1.5/32.452 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Lines: 25 Xref: newsfeed.cv.nrao.edu sci.data.formats:405 On Mon, 28 Sep 1998 17:24:12 -0600, "Tom Hilinski" wrote: >The following is a page from the MS Windows "Programmer's guide to Windows >95": > > >Bitmaps should be saved in a file that uses the established Windows format >and assigned a name with the three-character .BMP extension. The >established Windows format consists of a BITMAPFILEHEADER structure >followed by a BITMAPINFOHEADER structure. An array of RGBQUAD structures >(also called a color table) follows the BITMAPINFOHEADER structure. The >color table is followed by a second array of indexes into the color table >BITMAPINFOHEADER 0x0E - 0x31 >RGBQUAD array 0x32 - 0x75 >Color-index array 0x76 - 0x275 > Thank you VERY much!! This was the kind of information I was looking for! I really appreciate it. David From nobody Wed Sep 30 23:54:41 1998 Path: newsfeed.cv.nrao.edu!newsgate.duke.edu!nntprelay.mathworks.com!newshub.northeast.verio.net!chippy.visi.com!news-out.visi.com!pulsar.dimensional.com!dimensional.com!wormhole.dimensional.com!not-for-mail Message-ID: <3612355A.D4F5310F@dnvr.uswest.net> From: Mitch Wolberg X-Mailer: Mozilla 4.01 [en] (Win95; I) MIME-Version: 1.0 Newsgroups: sci.data.formats Subject: Re: info on microsoft works file formats X-Priority: 3 (Normal) References: <36119010.0@209.91.128.12> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Lines: 11 Date: Wed, 30 Sep 1998 13:41:11 GMT NNTP-Posting-Host: 206.124.10.208 NNTP-Posting-Date: Wed, 30 Sep 1998 07:41:11 MDT Organization: Dimensional Communications Xref: newsfeed.cv.nrao.edu sci.data.formats:407 Try www.wotsits.com they seem to have almost everything. Vianet wrote: > > does anybody out there know where i can find information on microsoft works > file formats. (wdb files)