RE: [guide-user] re RealSky from Hard drive

Stanley Taylor Jul 19, 2011

Here's a better way.

(Taken from Project Pluto website):
The program makelump.com was used to convert RealSky images to .RSL format. All the files are in the K:\Guide8 directory.
The details are given below:
 
The DSS and RealSky CDs waste considerable room in "dead space"; on a CD-ROM, space is allocated in 2K clusters, and the RealSky CDs tend toward small files. (DSS is not quite so wasteful in this regard, at least on a percentage basis.) Copying to a hard drive, with the common 16K or 64K cluster sizes, can lead to a single CD consuming 2 GBytes of hard drive space. To evade this, GET_DSS can make use of a "RealSky Lump" (.RSL) file, where all 784 small files for a given plate are combined into one larger file, which includes an index indicating where those 784 files are stored. See MAKELUMP.CPP for the code used to create such a lump, and GETPIECE.CPP to understand how it is used; or just click here to download MAKELUMP.COM (about 11 KBytes).
To use MAKELUMP, put it into your Guide directory, change to that directory, put a given RealSky or DSS disk into your CD-ROM, and run
makelump d
where 'd' is the drive letter of your CD-ROM. (It may be best to first make sure you have about 660 MBytes of free space on your hard drive, of course!)
Once you've "processed" a CD in this manner, you can run GET_DSS and, when prompted to insert that particular CD, you can ignore the message and just click OK.
Similarly, GETIMAGE makes use of "header" files; you have to copy about 1300 files to your hard drive in order to make use of GETIMAGE. This is not an attractive prospect in the DOS world (or even in most OSes); for GET_DSS, all the header files are combined and compressed into two files, HHH.DAT and HH2.DAT. (The compression format of the header files is fairly trivial; the code used is in PLATELST.CPP. About all it does is to note that 90% of the bytes in each header are the same in all files, and need be stored only once.)

The link is:

http://www.projectpluto.com/get_dss.htm

Stanley Taylor





To: guide-user@yahoogroups.com
From: owen@...
Date: Sat, 16 Jul 2011 11:47:39 +0100
Subject: RE: [guide-user] re RealSky from Hard drive






Yes I have my real Sky files under G:\realsky and it does not seem to like
that.

Owen

From: guide-user@yahoogroups.com [mailto:guide-user@yahoogroups.com] On
Behalf Of wisetdf@...
Sent: 16 July 2011 10:50 AM
To: guide-user@yahoogroups.com
Subject: [guide-user] re RealSky from Hard drive

It is possible, beause I've done so in the past, more than once (it tends to
be the first tihng to go when hard disk space becomes a problem).

Looking at my startup.mar I notice that the token "real CD" is set to D

Now, is that it, have you put D: or D:\?

Of course that used to be my CD rom drive place... ...but memory says if you
just echo those to a hard drive you should be okay.

Maybe the problem is you've put a full path, instead of copying the folders
to root?

When I use the menu and go EXTRAS->DSS/Realsky Images and then the
Realsky/DSS from CD button although the drive dialogue box says D:\, that's
because that's all of it that's visible.

When I cut and paste it I get :-

D:\realsky\

now, maybe you can set a path, and that's how I did it, write down your full
path in a text editor or something, copy it and paste it into that box.

Check your CDs first, in case they all in fact have the realsky directory
too...

or better still, ignore me and read this :-

http://www.projectpluto.com/faq_curr.htm#rs_on_hd

Bill's own words.

Ah, environ.dat! You've to change the path in two places it seems! Your
changes may be working, but the above suggests they get forgotten.

Cheers

John

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