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- Page 5-
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- HOWTO.DOC
-
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- This section explains "how to" do some things that may not be obvious and that
- we have found from experience that you may want to do. We will respond to "How
- can I" letters by adding sections here. We have not filled in everything for
- which we have made a heading. We are tired of writing. Your letters will
- provide inspiration.
-
-
- HOW TO REPLACE A JOB SYMBOL WITH A LIBRARY SYMBOL
-
- Jobs must be loaded before libraries. You can only load one job. The first
- symbol in memory wins, following symbols with the same name are ignored. So,
- here is how to replace a symbol with a new version in a library:
-
- 1. Load job with its old symbol.
-
- 2. Open the symbol and rename it to a different unused name. This is done by
- the MODSYM key followed by the RENAME after the symbol redraws.
-
- 3. Now load the library with the new symbol.
-
- 4. Reopen the symbol as in 2. above and use REPLAC to replace the renamed
- symbol with the new version. The old temporary symbol may now be KILLed.
-
- HOW TO CUSTOMIZE THE SETUP ARRAY FILE
-
- We all find it very tedious to work with the setup array file. If you list it
- (2,5), you will see that it fills two pages and contains 768 entries. You will
- really want to keep a listing nearby. We plan someday to include an edit
- procedure. This will be reasonable to do when we support the EGA (soon in the
- pay version). Be comforted that while it is a pain to set up, you don't have
- to do it very often. Once you edit it, the setup data is saved with your job.
- (you can read it if you want by listing JOBNAME.PCD)
-
- You will find 4SETUP on many menus. Pressing this key gives you the choice of
- editing the setup, the level within that setup, and the color and aperture
- attached to that level. In general, once you select the type of object to work
- on, you move through the table with the UP/DOWN keys. Note that this menu
- differs from others in that the position number is not shown on the keys,
- however, the new table line is shown at the top of the screen.
-
- It is important to remember that EDSET and EDLEVL only select a table line
- while EDCOLR and EDAPER change it. We cannot imagine changing this table
- without a listing in front of us. We find that we seldom work with more than
- two or three line widths on a job. We thus use a separate setup for each line
- width and each level where we are entering data. Sixteen has been more than
- enough. Sixteen was selected as the most we could get on two listing pages,
- eight having been found to be too few. This leaves us extra setups which we
- preset to show only a single level at a time, reserving one for special work.
-
- HOW TO USE VARSYM
-
- Varsym treats any symbol you have created just like a label. You can thus
- rotate it, scale it, and draw it with any aperture and on any level. Not much
- use for printed circuits, but fine for mechanical drawings where you want to
- create an item like a screw, then place it scaled.
- Page 5-
-
- HOW TO MOVE AROUND THE WORK SPACE
- ARROW, SPEED, FAST/SLOW
-
- If enough people complain, we will provide a mouse input. But honestly, folks,
- we find we just don't need it. We also wish to keep the hardware requirements
- to the absolute minimum. We work with the left hand on the function keys, and
- the right hand on the keypad. Normal movements are done with the arrow keys
- with occasional use of KP5 to get some place in a hurry. This poses a problem
- for how to drink our coffee, but leaning back and relaxing while we drink it
- gets the job done faster, we think. We use F6 to set the cursor movement to
- match the particular data type. We arrange our lines so they fit on the
- current grid, for digital this is often 15 mil lines on a 25 mil grid spacing
- which makes an easy board to etch. This we would do with the movement set at
- 25 mil steps. for laying out IC pads we would use F6 to set 100 mil steps.
- When it takes a while to get some place we often don't use the speed up key but
- just let our minds wander. Some times we gain an insight which makes the job
- go faster. All this is a personal viewpoint, but several of us have found that
- this system is less stressful than others we have used. Of course we each can
- afford to have our own on our desk now, which beats signing up for the big
- system in the CAD room in the sky. Still, having a slow moving cursor can be
- relaxing if you allow it.
-
- HOW TO WORK WITH SYMBOLS, OR WHERE IS THE JOB ANYWAY?
-
- A symbol is a collection of work that can displayed, saved, etc.. We are
- afraid that our experience with Gerber CAD systems shows. In the Gerber system
- we have used, most information was entered into something called the "job".
- You could make symbols, but symbols could not be entered into symbols (at least
- they did not maintain their identity). We saw the symbols as potentially
- powerful tools, but were frustrated by not being able to nest (call symbols
- from symbols) them. Thus when we wrote this program we carried over the
- concept of a job, as being the place where data was stored.
-
- We find that we do not put anything into the job until we have completed our
- work. We create our entire project as a symbol. It of course, contains other
- symbols which are job pieces. See the DEMO for an example. Because of our
- earlier experience, we called the job the thing that you create a plot file
- from. We could have as easily generated the plot file from a symbol, but
- that's not the way we did it.
-
- So when we have completed our work, we go to the nice clean unused job, and
- locate one symbol (where we did all our work) at 0,0. Then we go to the plot
- menu and create our output plot file.
-
-
- HOW TO BACKUP YOUR JOB
-
- SAVJOB
-
- SAVJOB saves everything just like it is. You are asked for a name and
- two files are created, "NAME.PCD" and "NAME.PCS". NAME.PCS contains
- all the working conditions, NAME.PCS contains all the symbols found in
- the job plus an special symbol which contains the job data. Later when
- you load these files as a job you are restored to the same status as
- you left.
-
- SAVLIB
-
- Page 5-
- SAVLIB saves only the job symbols as "NAME.LIB". If you make your job
- a symbol (as we recommend) then there is little difference between
- SAVJOB and SAVLIB except SAVJOB preserves you setup conditions where
- SAVLIB will take them from the SETUP file.
-
- LIBSYM
-
- LIBSYM allows saving a single symbol as a library. See the key
- sequence in QUICK and the LIBSYM command.
-
- HOW TO CREATE A SPECIALIZED LIBRARY
-
- To create a specialized library, like one of electronic symbols, we save each
- symbol as a separate library using the LIBSYM command. We then open a fresh
- job and load each symbol that we want. We then save this as a library with an
- appropriate name. Note that the system is smart enough to ignore repeated
- symbols. Thus if you load IC14 which contains PAD as a sub symbol, then load
- IC16 which uses PAD, the second pad is not loaded. You must thus be careful to
- name symbols distinctly. The first symbol in memory stays, subsequent calls to
- the same symbol are ignored. See HOW TO REPLACE A JOB SYMBOL ... above for a
- way to update a symbol.
-
- HOW TO CUSTOMIZE LABELS
-
- HOW TO STITCH
-
- HOW TO SET UP REDRAWS
-
- HOW TO MAKE PADS IF YOU ONLY HAVE A PEN PLOTTER
-
- HOW TO START WITH YOUR OWN CUSTOM SETUP
-
- First, make sure you have backup copies of SETUP.PCS, and SETUP.PCD. Start
- without loading a job. You may then load as many symbol libraries as you wish.
- Edit the setup arrays and the redraw tables as you wish. Now save your work as
- the job "SETUP". Examination of the disk directory will reveal that there is a
- new SETUP.PCS and SETUP.PCD pair replacing the old ones. Be sure first that
- you have kept a clean copy of the original SETUP files as it will be very hard
- to clean out the junk you are about to add if you later decide that you don't
- want it. Now if you start DROEGE from a disk containing this new SETUP file
- pair you will have all the symbols and setups that you have prepared. You can
- even save things like a drawing outline and title block if you enter them
- before saving SETUP.
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