[GRASSweb-list]markus: web/oldprojects/ltplus index.html,NONE,1.1

Sat Nov 9 17:44:44 EST 2002

Author: markus

Update of /grassrepository/web/oldprojects/ltplus
In directory doto:/tmp/cvs-serv27911

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Log Message:
was projects/

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GRASS 4.2.1 pages<p>

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<H2>Current Version 
 LTPlus - Line Trace Plus 4.14b</H2>
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DESCRIPTION 
LTPlus is a powerful raster to vector conversion (digitizing) program. 
The 4.x version was written against GRASS 4.1 this program is being migrated to work with GRASS 4.2 and will ultimately become LTP version 4.2.
 likewise the version that works with GRASS 5.x will eventually be LTP version 5.

This is developmental code, 
It may or may not work on your particular system. It is being released early to generate comments and bug reports.

<hr>
What's new: 
12/7/98 
A versioning problem caused an update error in
src.related/LTPlus_4.14a/source/in/put_diary.c 
11/27/98 
 Memory fault BUG fixed in put_diary() and trim() 
 &nbsp;&nbsp;&nbsp; should fix most problems of "click on acquire/create then it dies" 
 11/24/98 
 LTPlus supports 16bit and 24bit now (additionally to 8bit).

<p>
<b>Diffs/replacements</b><br>
 <A HREF="put_diary.c">V4.14a -> 4.14b - new put_diary.c </A>(replace file in LTPlus_4.14a/source/in/)<br>
 <A HREF="ltp_4.14_4.14a.diff.gz">V4.14 -> 4.14a List of changes (diff file)</A><br>
 <A HREF="ltp.upd.diff.gz ">V4.13 -> 4.14: List of changes (diff file)</A>
<hr>
<p>
<b>DOCUMENTATION:</b><br>
 The documentation is included in source as well as in the Linux binary package.
<p>
<b>NOTES:</b><br>
The demo macros   <i>demop, democ, demo_ploy,</i> and <i>demo_contour</i>
have all run successfully on my Redhat5.1/i486/gcc2.7.2.3 system.
(I don't know if that means the package is completely working)
<p>
For a Sun SS5 (sparc) Solaris 2.5.1, gcc2.7.2 system:<br>
  - use REDHAT CFLAGS and add -DBIG_ENDIAN<br>
  - the Redhat defines are necessary for supppressing ioctl defines<br>
  - the headers <sys/dir.h> and <dirent.h> were missing from /usr/include<br>
   I grabbed them from my Redhat system (not the best idea)<br>
  - the bigendian define was required<br>

After all that (on a Sun SS5) LTP started ok, all demo macros start ok but none completed.
The menuset_get function is not working correctly. (looks like a bigendian problem)

<b>General notes:</b>

LTP is not stable and is being updated.<br>
Specifically the color handling is in transition.<br>
 8bit color works (not so good)<br>
 24bit color has problems<br>
 use -DDEBUGCOLOR to see what I mean<p>

LTP will compile and run in either, but the 24bit display is sub optimal. 
LTP arch specific defines should probably go into an arch file and
be referenced by source/incl/globals.h

LTP only works with ascii vector files<br>
LTP needs to work with GRASS library calls<br>

<b>Help is needed on this project!!!!!!!!!!</b>

<p>

STILL TO DO (11/27/98): 
early work will be to "cleanup" code in preparation for later stuff 
later work will extend functionality
<ul>
<li>FIND BUGS IN CODE
<li>"FIX Colors" ie change color selection model to color_number selection from plane bit selection.
<li>link against GRASS4.2 libraries for reading and writing of Raster and Vector data.
<li>add support for linux into code through defines (I am coding in REDHAT51 defines in but it needs to be more generalized and not dependant on SUNOS defines)
<li>read other raster datatypes.
<li>add support for GRASS 4.2.x datatypes internally. (move from dig_ascii)
<li>change interface so compilation under Win95 may be possible.
<li>link against GRASS5.x libraries.
</ul>
Perhaps YOU like to support LTPlus?! - <A HREF="mailto:candrsn at mindspring.com">Contact us!</A>

<hr>
Get the LTPlus software:
<dl>
 <DD><DEFANGED_IMG src="../../picts/kn-rot.gif" > Get the <A HREF=ltplus_4.14b_src.tar.gz>LTPlus 4.14b Dec. 1998 source code</A> (1.66MB, unpack in grass42/) - 7th Dec. 98</DD>

<DD><DEFANGED_IMG src="../../picts/kn-blau.gif" > Get the <A HREF=ltplus_4.14b_linuxbin.tar.gz> LTPlus 4.14b Dec. 1998 Linux binaries</A> (1.7MB, unpack in grass42/) - <i>7th Dec. 98</i></DD>
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<DEFANGED_IMG src="../../picts/iln_logo.gif" > <A HREF="../../welcome.html">Back to GRASS 4.2.1 pages</A>
<ADDRESS>
Please post you success or failure with LTP to me: 

<A HREF="mailto:candrsn at mindspring.com">Carl Anderson</A>
</ADDRESS>

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