>From: address@hidden >Organization: GMU >Keywords: 200411041705.iA4H52vV003436 ldm-mcidas Hi Ying, >I want to make it for sure about the format of GOES data downloaded by >LDM. Is it of McIDAS area format? 1) The format of the images in the UNIWISC IDD datastream are PNG compressed McIDAS AREA files. It is not a straight PNG compression, however. The McIDAS AREA file headers are left uncompressed at the beginning of the product, the trailing "comment" fields are added just after the headers, and then the PNG compressed image data is added last. The ldm-mcidas decoder 'pnga2area' is used to convert those images back into standard McIDAS AREA files. The AREA file format is described in the McIDAS Programmers Reference Manual: http://www.ssec.wisc.edu/mug/prog_man/prog_man.html ldm-mcidas decoders are described at: http://my.unidata.ucar.edu/content/software/mcidas/mcidd/index.html 2) The format of the images in the NIMAGE IDD datastream are Zlib compressed GINI images. The GINI format is described in: Interface Control Document (ICD) for AWIPS-National Environmental Satellite, Data and Information Service (NESDIS) AA0130008 The ldm-mcidas decoder 'zlibg2gini' is used to convert the Zlib-compressed GINI images to GINI format. >In order to do another project, I need to integrate a component to read >the data on Windows platform, which software do you recommend? It seems >both IDV and VisAD can do the job. I'm using VisAD right now since it's >smaller and easier for me to read the code. IDV is built on top of VisAD, so either is a good choice. >PS. I can not see the workshop webcast anymore. > >The link >http://webcast.unidata.ucar.edu/ramgen/broadcast/workshop/workshop.rm >doesn't work. When will the IDV session and GEMPAK session be avaiable >online? The workshops ended Tuesday afternoon. We will be organizing them for access over the coming days and announcing their availability to the Unidata-maintained 'community' (address@hidden) email list. >Thank you very much and have a good day, No worries. Cheers, Tom -- NOTE: All email exchanges with Unidata User Support are recorded in the Unidata inquiry tracking system and then made publicly available through the web. If you do not want to have your interactions made available in this way, you must let us know in each email you send to us.
NOTE: All email exchanges with Unidata User Support are recorded in the Unidata inquiry tracking system and then made publicly available through the web. If you do not want to have your interactions made available in this way, you must let us know in each email you send to us.