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1992-10-17
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Draw Plus — User Guide
======================
Introduction
------------
This document describes DrawPlus, formerly Draw 1½; an alternative to
Acorn's Draw with lots of additional features. All of the options are
described, although it is assumed that the reader is familiar with the
original Acorn version of Draw.
DrawPlus offers the following enhancements over and above Acorn Draw:
1. Layers allow drawing information to be structured into different
categories. A drawing can have up to 32 named layers, and each
object in a drawing resides on a specific layer. Each layer can be
shown or made invisible, and objects on them can be selectable or
not.
Layers allow related information to be kept together, completed
parts of the drawing to be made unselectable so that there is no
danger of accidentally changing them, and information which is
not needed for the moment to be hidden.
Layers operate in addition to the background facility in previous
versions of DrawPlus. That is still present, for compatibility
reasons, but the layer system is far more versatile.
2. Objects can be locked so that they cannot be changed until they are
unlocked. This offers a finer level of control than layers, but of
course the two facilities can be used together.
3. Frequently used graphics, symbols or clip art can be stored in a
library and retrieved from it when required. The library can be
saved in a file, independent of any drawings, and the objects in it
pasted into any drawing.
4. Ten line patterns are available (in addition to solid lines), which
can be edited to give custom dashed lines.
5. Information such as the text and path styles, layer and dash pattern
information, grid and zoom options is saved along with the drawing,
and is restored when it is reloaded.
6. Lots of other features too numerous to mention.
Running
-------
The latest versions of the shared C library (CLib), the floating point
emulator (FPE) and the colour translation module (Colours) must be available
in the system's modules directory. Employees and associates of Computer
Concepts (who seem to object to writing applications in high-level
languages) may as well stop reading now.
Double-click on the application icon, or a saved Draw file or library, in
the normal way. If DrawPlus is not yet running, it will be loaded and the
drawing will appear in a new window. If it is, the drawing will be loaded
into a new window. In both cases, unless the option to not do so has been
set, a tool window will also appear for each document window.
To create a new blank document, click Select on the icon bar icon once
DrawPlus has been loaded.
To load a Draw file from the Filer or saved from another application, drag
it to the icon bar icon.
A settings file is loaded when the application is run up. This contains such
information as the display colours, preference settings (see below), default
page size and grid settings and default text and path styles. If a message
appears complaining that this file is not present, or is too old, use one of
the default save options to create the file.
Operating systems
-----------------
DrawPlus will work with either the original operating system version
(RiscOS 2) or updated versions (RiscOS 3 or 3·1). It will not work under
Arthur.
To get the best out of graphical applications, it is recommended that you
have the outline font manager modules (Fonts and Super) available. These
modules are not supplied with RiscOS 2, but can be loaded from disc.
DrawPlus will work with the original bitmap font manager, but the quality of
the text will be not be as good. The outline font manager can be obtained
on one of Acorn's font starter packs, or (much cheaper!) on a demo disc from
an appropriate software supplier.
When running under RiscOS 3·0 or higher, additional facilities are available
such as the ability to rotate or flip sprites or text objects. The new
desktop facilities (iconising and desktop save) available under that OS are
also supported.
Merging and Saving
------------------
To merge a drawing with another, load the first and then drag the second
into the drawing window; the two drawings will be combined. If the
appropriate option has been set, the bottom left corner of the loaded
drawing will be placed at the pointer position where the mouse button was
released. If it is not set, the bottom left corners of the drawings will be
aligned without regard to the pointer position.
To create a sprite object, drag a sprite file into a drawing window; the
object will appear at the pointer position at its true size. If the sprite
file contains more than one sprite, the first one will be used.
To create a text area object, drag a text file into a drawing window; the
object will be created at the pointer position with the text columns set to
standard sizes. If the file does not have a standard header, one will be
supplied. If an existing text area object is selected when a text file is
loaded, the text in that area will be replaced by the contents of the file
without changing its size or position. The number of columns cannot be
changed.
To allow the extended information to be saved, the files saved by DrawPlus
are not compatible with the original format. In this form, they can only
be used by DrawPlus. For use with other packages, the option to save in the
original format — without the extended information — is included.
The following options appear on the "Save" menu. Most of them lead to "Save
as" windows which are used in the normal way:
Drawing Saves the complete drawing as a Draw file.
Selection Saves the selected objects as a Draw file, plus the drawing
header and font information if required. Only available in
Select mode when at least one object is selected.
Sprites Saves the selected objects as a sprite file. Select mode
must again be active, and all the selected objects must be
sprites.
Text area Saves the text contained in the selected area as a text
file. A single text area object must be selected. If the
text did not have the standard header when it was loaded, it
will be saved with it.
Ascii Saves the selected objects in dump format. This may not be
available in released versions; it is intended for possible
future interfacing with other programs.
Defaults Saves the current preference settings, and the current
drawing's settings and default styles, as the permanent
default. This default will be used for any new drawings
created, and will be saved on disc so that it can be used
next time DrawPlus is run up.
New format Normally on; when this option is ticked, the drawing will be
saved in the extended format. If it is not ticked then no
layer or locking information, or the current styles and
settings, will be saved. Because a lot of information could
be lost by re-saving a file in the old format, confirmation
is requested when this option is turned off.
When this option is off, files created are completely
compatible with Acorn Draw and other applications which use
Draw files. Files saved with this option turned on can be
loaded into Vector, and will retain their extended
information.
With settings Only available if "New format" is set; normally on in that
case. Causes the current styles, layer settings, dash
patterns, grid and paper options and zoom settings to be
saved in the drawing file, so that they will be restored
next time that drawing is loaded. Some of these settings