Primoz Jakopin:

A letter to the user of EVA CAI lesson

1. Download and unzip eva.exe and eva.rsf files - click on English version of EVA, zipped, for Windows 95 - to some suitable directory, C:\EVA for instance.
2. Make a shortcut to EVA.EXE, so that it will be accessible from the desktop. I usually give it the icon of a green tree, as EVA logo (a girl flying on a floppy) is still in the making.
3. Download the lesson - click on Test lesson (CAI), 5 questions - to the same disk directory.
4. Start EVA by clicking its icon.
5. You find yourself in the disk menu, where confirm the Read file from disk option.
6. In the disk directory select EVA_CAI_TEST_EN.EVA.
7. In the main menu (access it with the mouse or via <Esc> key) select System, followed by System setup and change Double-diamond code to 36 ($) there.
8. In the main menu select "Lessons" and any of the first four options in the submenu, Run the lesson sequentially, for instance.
9. Play the lesson to the end.

METEOROLOGY - PROGNOSTIC MAPS - VARIA

P. Jakopin

98/05/30 11.29 - 11.34 = 4'52''

11:29 : 1. The movement of air masses

11:30         maritime,warm

11:30 : 2. Air pressure change in an anticyclone

11:30         b

11:30 : 3. What is the name of a cyclone

11:30         cyclone

11:30 : 4. Concordances - a missing word

11:30         beauty

11:30 : 5. Text description

11:34         Obviously it is a text full of anagrams and written with a

              sole purpose to pack as many as possible in an average

              paragraph or two. The words such as gallery, regally,

              largely clearly confirm that statement.

                       The text resembles some psycho SF but somehow

              lacks real credibility.

1. lines that begin with a colon (:) - start of a new unit (question) after a colon a space is appropriate, followed by any name up to 100 characters. It will show in the log file.
2. lines that begin with two colons (::) - start of a subroutine, accessed through "= gosub:subroutine name" command line. After two colons the subroutine name should be placed.
3. lines which begin by an equal sign (=) - lesson commands. They can be modified and are stored in the "LESSON COMMANDS" EVA system table in EVA.RSF. You get any of them through "System"->"Get system table" menu sequence, store after modification through "System"->"Put system table" sequence and make modifications permanent by "System"-> "Write EVA.RSF".
4. any other line, usually pertaining to page contents or description.

1. lines which start with at least two double-diamond (dollar sign in our simplified case) characters are end-of-page lines.
2. lines which start with
   $ 4
   are PDL command lines. Such line has a structure:
   $ 4,entry 1,entry 2, ..., entry n.
   The shortest possible one is
   $ 4.
   which just deactivates the values of previous such command.
   Entries are of the type:
   n=value.
   where n can be one of the following:
   2: FONT
   34: LEFT MARGIN (x) in pixels
   35: TOP MARGIN (y)
   36: CHARACTER SPACING
   37: LINE SPACING
   38: BLOCK WIDTH
   39: ABSOLUTE LINE SPACING
   40: PICTURE MAGNIFICATION FACTOR
   41: UNIT
   42: PRINT DENSITY
   43: BLOCK LEVEL
   44: FRAME PATTERN
   45: UNDERLINE SPACES
   46: ADDITIONAL LINE SPACING for PAGE BREAKUP
   51-120: TABULATORS
   121: HISTOGRAM etc. line width
   
   
   • 2 (font) selects the font used for the following text, up to the next PDL command. The fonts are stored in "DTP RASTER FONTS" system table and the default one can be selected through:
     "Print"->"DTP Setup" menu command sequence.
     As you will see, the choice is limited at the moment - for CAI use only "Times 20, 25, 31, 35, 39, 40", "Listing" which is now default and "System font" (80 characters per screen line, fixed) come into play. Others are too big - just for titles etc. I will add all True Type Windows fonts in the foreseeable future.
   • 34 = left margin in pixels - how much all the following lines will be pushed to the right. Default value can be selected through "Print"->"DTP Setup".
   • 35 = top margin in pixels - how many pixels from screen top (down) the following block of lines will begin.
   • 51, 52, 53 etc. - the values of tabulator 1, tabulator 2, tab 3 etc. very important for making tables, such as the ones in question 4 of the demo lesson. Any text embedded like
     <10>text<10>
     will be right justified to the value of the current tabulator (in pixels) and any text, preceded by <9>:
     <9>text
     will be started at the value of the current tabulator. EVA also contains a concordancer, which has been used for making of example in question 4 (from Plato's Republic).
3. ordinary lines with lesson contents or comments

1. "System"->"Get system table"->"KEYBOARD"
2. modify what is wrong, usig "Varia"->"Get character" on places where something should be corrected
3. "System"->"Put system table" and, to make modifications permanent:
4. "System"->"Write EVA.RSF".

Last change: May 31, 1998                                  Number of visits since 5/31/98      

URL of this page: http://www.uni-lj.si/~ffjakopin/eva/eva_cai_let_en.html