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!AWViewer
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!ReadMe
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Text File
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1993-02-03
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6KB
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153 lines
This program, including all associated modules, is Copyright © Computer
Concepts Ltd. 1992, 1993. All Rights Reserved.
Permission is hereby given for you to copy this program and freely
distribute it, subject to the following conditions:
* No charge is made for the program (except nominal media costs).
* No alterations are made to any of the files within the !AWViewer application.
* All of the files within the !AWViewer application are supplied, including
this one.
* No attempt is made to reverse engineer any of the programs in the
application.
Interfacing and licensing details can be obtained from Computer Concepts, see
below.
* This program or modules that make up this program shall not be used in or
by any other program.
* This ReadMe file is supplied, unaltered.
Computer Concepts reserves the right to withdraw this permission from any
individual or organisation at any time for any reason.
-------------------------------------------------------------------------------
How To Use The ArtWorks Viewer
==============================
Double-click on the !AWViewer icon in a directory viewer to run the program.
An icon will appear on the icon bar and a default picture will be displayed.
Click on the Close icon on the window to remove it.
To view any ArtWorks file, drag it from a directory viewer onto the icon on
the icon bar. A window will appear displaying as much of the ArtWorks file
as will fit in the window.
Zooming into the picture
========================
Clicking with the left hand button will zoom into the picture (i.e. increase
its size). Clicking with the right hand button will zoom out of the picture.
Clicking and dragging with the left hand button will create a box. Releasing
the mouse button will cause the viewer to zoom into the box.
Clicking with the left hand button while holding down the CTRL key will zoom
the picture to 100%
Clicking with the right hand button will zoom out of the picture.
Clicking with the left hand button while holding down SHIFT will return to
the previous scale factor (i.e. the one before the last zoom).
Moving the picture around
=========================
Holding down either Alt key will change the pointer to a hand. Clicking and
holding down the mouse will move the picture around in the window (if the
window is only displaying part of the image).
The Menu
========
Clicking the middle button over the icon or the window will bring up the
menu.
Info shows info about the program.
Quit quits the program.
WYSIWYG sets the quality of the display:
* 'Outlines' displays only black outlines of objects.
* 'Simple' displays only flat fills, not graduated fills, and all lines are thin
* 'Normal' displays graduated fills and thick lines, but does not anti-alias
* 'Anti-aliased' will display all objects 'anti-aliased', which reduces the
jagged edges of shapes by using grey shades or shades of colour to smooth the
edges, in a similar way to the way fonts are anti-aliased. Anti-aliased
drawing is slower than the normal setting.
ArtWorks rendering can take advantage of different screen palettes. Inside
the !AWViewer program are two alternative 16 colour screen mode palettes.
To load these palettes hold down SHIFT and double click on the !AWViewer to
open the program directory. There should be two files shown here called Grey
and Primary. To load either just drag the file onto the Palette icon on the
left side of the icon bar.
The grey palette sets the screen to be 16 shades of grey. ArtWorks then
dithers these to show perfectly smooth graduated grey-scales. The Primary
palette slightly alters some of the desktop colours to allow ArtWorks to
shows a better range of colours. To set the screen palette back to the
default simply select the Default menu option from the Palette icon on the
icon bar.
Current Acorn hardware does not allow palettes to be changed in 256 colour
modes.
Incorporating the ArtWorks renderer in your own programs
========================================================
If you have an application which you think would benefit from displaying
ArtWorks files, you can obtain a licence from Computer Concepts Ltd. For
details of the licensing terms and technical documentation write to:
ArtWorks Renderer Licensing dept.
Computer Concepts Ltd.
Gaddesden Place
Hemel Hempstead
Herts
HP2 6EX
UK
Computer Concepts reserves the right to refuse to grant such a licence.
-----------------------------------------------------------------------
Technical notes
---------------
This version of the viewer displays files from ArtWorks version 1.10 and
earlier. It does not incorporate the sprite dithering technology of
ArtWorks version 1.10 and all sprites are shown non-dithered as they would
appear in other Acorn applications.
When creating ArtWorks files to be viewed by this viewer program remember
that the machine being used may not have the same fonts. The viewer program
will not display a font if it cannot find the exact match, however there
are two ways you can ensure that text does get displayed no matter what
fonts are available.
Firstly, performing a 'Makes shapes' operation on any text turns it into
graphic outlines - but it no longer remains editable. Secondly, by giving
the text an outline colour, or in fact performing any operation that forces
ArtWorks to use text outlines, such as distorting it in an envelope or
giving it a graduated colour fill, will also make ArtWorks store and display
the text using the outlines. This second method has the advantage that text
will remain as text so that it could be edited in ArtWorks at a later date
if so desired.
Both options involve making ArtWorks draw the text using the font outline
shapes and so you should be aware that text displayed this way will be
slower. It will also greatly increase the size of the ArtWorks files.
Impression
----------
Impression Junior version 1.18 and Impression II version 2.18 and later can
accept, display and print ArtWorks files directly. If you have earlier
versions of either program then you can upgrade for £10 + VAT by returning
your disc 1, with payment, to Computer Concepts.
If you already own a copy of ArtWorks then there is no charge for the
upgrade. In this case just return your Impression disc 1 quoting your
ArtWorks serial number and we will return a replacement disc.