Partial update of __pltopt__.m

[Daniel J Sebald]

I did some plots with symbols and found them to be out of date with 
current gnuplot.  Attached is a diff file for __pltopt1__.m in the plot 
script directory that I think should realign things.  The symbol @ by 
itself is now a solid dot (an extra symbol from before the change), and 
+ x o * are as expected.  That's five symbols.

In the script file documentation it says something about "house" and 
"there exists" symbols.  There is nothing like that in the script itself.

The 'NM' where M is a symbol number doesn't really coincide with @ + x o 
* symbols.  That is, 1 2 3 4 5 6 7 8 9 will produce symbols not 
including all of the @ + x o *.  Not exactly sure how that should be.  
Having a double digit value for M would allow accessing all of gnuplot's 
symbols.

Dan

--- __pltopt1__.m.orig  2004-12-07 19:10:43.000000000 -0600
+++ __pltopt1__.m       2005-01-02 22:31:34.488511888 -0600
@@ -101,6 +101,8 @@
       set_linestyle = "dot";
     elseif (strcmp (char, "@"))
       set_points = 1;
+      set_symbol = 1;
+      symbol = "7";
     elseif (strcmp (char, "^"))
       set_impulses = 1;
     elseif (strcmp (char, "L"))
@@ -145,19 +147,19 @@
     elseif (strcmp (char, "*"))
       set_points = 1;
       set_symbol = 1;
-      symbol = "6";
+      symbol = "3";
     elseif (strcmp (char, "+"))
       set_points = 1;
       set_symbol = 1;
-      symbol = "2";
+      symbol = "1";
     elseif (strcmp (char, "o"))
       set_points = 1;
       set_symbol = 1;
-      symbol = "1";
+      symbol = "6";
     elseif (strcmp (char, "x"))
       set_points = 1;
       set_symbol = 1;
-      symbol = "4";
+      symbol = "2";
     elseif (strcmp (char, ";"))  # title mode.
       working = 1;
       while (working)