Jake-S@cup.portal.com (Jake G Schwartz) (03/11/90)
On the floppy that accompanies the 82208 Serial I/F Kit is a nifty program called GROB2TIF which allows conversion of graphic object files (which have been uploaded to a PC) to TIFF (tag image format files) format so they may be displayed on a PC screen or incorporated into other documents. I thought that a limitation in that program should be mentioned here. The instructions say that graphic objects must be uploaded in ASCII format in order for GROB2TIF to work properly (which is true). However, when the HP48 formats for ASCII transfer, it becomes a memory grabber, requiring something like 7.5 times the size of the object in empty RAM to be available as scratch. Thus, with a machine devoid of everything but the GROB to be transfered, the largest that can be sent in ASCII is approxi- mately 3.9K bytes in size, corresponding roughly to a 250 by 125 PICT size. GROBs larger than 3.9K yield "SEND Error: Insufficient Memory" when attempted to be sent to the PC in ASCII mode. HP is aware of this limitation, and knows that a version of GROB2TIF which can convert files uploaded in BINARY would be much more useful. Jake Schwartz
davin@me.utoronto.ca (Davin Yap) (03/12/90)
Jake-S@cup.portal.com (Jake G Schwartz) writes: >called GROB2TIF which allows conversion of graphic object files (which have >been uploaded to a PC) to TIFF (tag image format files) format so they may >be displayed on a PC screen or incorporated into other documents. I thought >that a limitation in that program should be mentioned here. > The instructions say that graphic objects must be uploaded in ASCII >format in order for GROB2TIF to work properly (which is true). However, >when the HP48 formats for ASCII transfer, it becomes a memory grabber, >requiring something like 7.5 times the size of the object in empty RAM to >be available as scratch. Thus, with a machine devoid of everything but the >GROB to be transfered, the largest that can be sent in ASCII is approxi- >mately 3.9K bytes in size, corresponding roughly to a 250 by 125 PICT size. Yes, but I assume you can still transfer epson compatible graphs (which are binary) that are much larger than that, No? If so, then tucked away in some partition of one disk of one machine somewhere around here I've got a utility program that converts epson compatible graphics to Postscript (I've even tried it). I'm sure I'll get plenty of requests for it, so I'll post it here (I guess that's proper) when I get some time, that is, unless people protest against C source postings to this group :-). If you want to include the graphs in other documents then you'll need encapsulated postscript - yup, got something for that too (would I leave you with half a solution :-). Caveat: I haven't tried the program that calculates the %%BoundingBox esp. with bitmaps so I don't know if it works. Regards, Davin _______________________________________________________________________________ Leave nothing to | Davin Yap, Mechanical Engineering, U of Toronto the imagination of |davin@me.utoronto.ca davin@me.utoronto.bitnet those without.| ...{pyramid,uunet}!utai!utme!davin --