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EnigmA Amiga Run 1998 October
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EnigmA AMIGA RUN 31 (1998)(G.R. Edizioni)(IT)[!][issue 1998-10].iso
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DRAWSTUDIO TUTORIALS
Terminology Used
----------------
This manual uses a standard terms for describing the
action of the program and its user interface. Because
the program has a standard "look and feel" which is
shared by other Amiga programs, new users of
DrawStudio should have little difficulty navigating
around the program.
A few simple terms are explained below to give you an
idea:
- "Clicking". To "click" on an object or a
button in a window, depress the left mouse
button and release without moving the mouse.
Clicking is the most common mouse operation in
the program (after movement!).
"Shift-clicking". Clicking the mouse as above,
only holding down either of the "shift" keys
whilst doing it. Shift clicking is used for
selecting multiple objects. Similarly, Control-
and Alt-clicking sometimes modify the operation
of clicking.
- "Dragging". To drag with the mouse, click down
with the left mouse button and move the mouse.
Once you are happy with the drag, release the
mouse button. Objects are moved on the page by
dragging them, and Shift-, Ctrl- and Alt-
dragging may sometimes be performed to modify
the drag operation.
Tutorials
---------
Following are a few simple tutorials which will give
you an idea of the capabilities of the program.
Starting the Program
--------------------
To start DrawStudio, simply double-click on the
program's icon on Workbench. After the opening splash
window has opened, you will be presented with a new
project - ready for work.
--------------------------------------------------
IMPORTANT: If DrawStudio opens up with a screenmode
you would like to change, choose Project/Display and
click on the "Choose..." button (Screenmode section)
to select a screenmode of your choice. To save the
settings for later use, choose Settings/Save
Settings.
-----------------------------------------------
The main window is the project window, and currently
shows a blank page of paper. This window can be
resized using the sizing gadget on the bottom right
of the Project window. Down the left of the window is
a toolbar;
The top buttons in the toolbar select the
drawing tools (lines, circles, curves, text,
etc...)
and the bottom buttons allow you to change the
attributes of objects (colour, line thickness,
line ends, etc...).
At the bottom of the project window are two pop-ups
for the current page and layer (see later) and a
horizontal scroll bar for moving the page left and
right. To the right of the project window is a
vertical scroll bar. This allows you to move the
portion of the page which is currently being
displayed up and down.
The default screenmode is 16 colours and HiRes
Interlaced screen. This screenmode is available to
all Amigas (AGA and non-AGA), however you may change
the screenmode by selecting the "Project/Display..."
menu item to open the display requester as outlined
above.
The display requester also allows you to change the
display type of the page buffer. The page buffer is
the area of memory that DrawStudio uses when drawing
objects before they are displayed on the screen.
Although all colours are kept in 24 bit accuracy
internally, the page buffer can store either 1 bit, 8
bits or 24 bits of colour information.
Using more bits will allow DrawStudio to display
objects better on the screen, but will require more
memory to store the page buffer.
The 1-bit page buffer gives very fast redraws,
but only in black and white; this page buffer
requires the minimum amount of memory.
8-bit greyscale buffers display all the effects
available in DrawStudio, only without any
colour.
8-bit colour buffers will display in colour, but
do not show the transparency information that
will be shown in 8 bit greyscale.
24 bit buffers are the highest quality, showing
all the effects available in full colour; they
also require the largest amount of memory.
Choosing the page buffer type for your use depends on
what you are designing and how you wish to output the
final illustration. If you are using DrawStudio to
produce diagrams for a technical report for example,
using a 1 bit page buffer would provide all the
quality required with a very fast screen redraw. If
you are producing a drawing which will be printed out
on a black and white printer, using the 8 bit
greyscale page buffer will suffice. If you have a
fast Amiga with lots of memory, using a 24 bit page
buffer for all instances would be acceptable. You can
of course change the page buffer type at any time
during a design as needs require.
How to Draw Simple Shapes
-------------------------
To draw simple lines, rectangles, circles etc... on
the page, simply click on the appropriate tool on the
toolbar and drag the new shape out on the page.
Notice how that when you have drawn an object, it is
surrounded by eight small rectangular points; these
are called the "bounding box points". These points
show the extremities of the object and are only
displayed when the object is "selected".
Many of the operations available in DrawStudio will
only be applied to the currently selected objects.
When the pointer tool is active, you may click on the
bounding box points to drag them and re-size the
object.
Changing the Appearance of Objects
----------------------------------
By default, all new objects drawn on the page will be
drawn in the default style - black pen and no fill.
The things which determine how an object is drawn are
called the object's "attributes"; the object's
colour, pen thickness, pen style and line ends are
all attributes the object may have.
To change the attributes of an object you can either
use the Attributes requester ("Object/ Attributes..."
menu) or the pop-ups which are in the lower half of
the toolbar towards the left of the project window
(these popups are the four lowest rows of tools you
can see in the whole toolbar).
Try drawing a circle on the page and, while the
object is still selected, open the Pen (Line Colour)
pop-up (this is located in the row fourth from bottom
on the left).
Click on any of the colours on the palette. The
object's pen will change colour and the pop-up will
close. If the object has not redrawn in colour, make
sure that you are using either a 8 bit or 24 colour
page buffer. Try changing the Page Buffer to see how
it effects the way the colour fills are displayed on
screen.
Similarly open the Fill pop-up (next to the Pen pop-
up) and change the colour of the circle's fill.
Notice that objects can have no fill (None)- i.e. are
transparent.
To change the circle's Pen (Lines) dash style, open
up the pen (Line) dash pop-up. You can also change
the pen's thickness using the Pen thickness pop-up.
The bottom two pop-ups change the styles at the start
and end of lines. Making sure that there are no
objects selected on page (click on an empty area of
the page), draw a simple line. It will be drawn as a
single, thin line. To add an arrowhead to the line,
make sure the line is still selected and open the
Line start pop-up.
The line will now be drawn with arrowheads and the
pop-up will close.
But what happens if you want to draw lots of lines
with arrowheads? It would be a really annoying to
have to keep on selecting the pop-ups. DrawStudio
helps you in two ways.
The first method is to make all lines that are drawn,
be drawn with arrowheads. To change the default line
style (this also works for the colours and fills of
objects), make sure that no objects on the page are
selected then open the pop-up to change the arrowhead
style. Now all lines will be drawn with the arrowhead
that you've selected.
Another method allows you to "inherit" the attributes
from any other object on the current page. To create
an object using the attributes from an existing
objects, make sure that the original object is the
only object selected on the page and then create the
new object; it will be created with the attributes
inherited from the original object.
Complex Object Attributes
-------------------------
The previous section showed how the colours and line
styles of objects can be changed using the pop-ups in
the toolbar. For applying more complex attributes
(e.g. gradient fills), this must be done from the
Attributes requester (Object/Attributes).
Select any object you have on the current page and
open the attributes requester ("Object/
Attributes..." menu).
Here you can select the fill type of both the pen and
the object fill independently. Try giving the circle
you created above, a brick pattern for the pen and a
gradient fill for its centre.
IMPORTANT: Please Note that patterns can be
edited. You can choose the colour of the
foreground and background colours as well as use
transparent colours.
Drawing Aids
------------
Creating illustrations with a drawing package is a
different process than using a paint package.
DrawStudio has a wide range of layout tools which
will aid you to create both accurate drawings and
realistic illustrations.
The simplest tool which is present in most drawing
packages is "Snapping to a grid". This is activated
by either toggling the "Layout/Snap to grid" menu
item or from the Snapping requester.
You can snap to the horizontal and vertical grids
independently and you may adjust the size of the
horizontal and vertical grids independently. Using
"snap to grid" is useful when creating technical
diagrams or flow charts.
DrawStudio also allows you to snap to objects -
snapping to object ends, points, lines and curves is
supported. This is very useful when creating artistic
illustrations, as these types of illustrations do not
fit well to a regular grid. To try snapping to an
object, open the snapping requester and select all
the snapping to object buttons.
Now draw a Bezier object which contains both lines
and curves. Now create a simple line object and as
you are dragging the end of the line near the Bezier
object, notice how the line end snaps to the Bezier
object. The mouse pointer will change to show whether
the line is snapping to a line, curve, point or end
of the curve.
When you release the mouse button, the line will be
created which snaps EXACTLY to the location on the
Bezier curve.
Another tool which can prove very useful is the align
tool; this is available through the Align requester
("Object/ Align..." menu). This allows you to align
object to each other or to the page as a whole;
objects may be left, right or centre justified with
respect to themselves or the page. The align
requester can also be used to distribute (i.e. spread
out) objects on the page.
For example, to centre an object on the page, select
any object on the page and open the align requester
and play with the different settings to see how
powerful this function is. There is a Preview to make
things more intuitive for you.
Pages, Layers and Objects
-------------------------
So far, we have only considered adding objects onto a
single page. DrawStudio supports multiple pages (much
the same way as a DTP program or a word processor),
allowing documents to be created which will be
printed out to several pages. To change the current
page or to add or delete pages you can either click
the page pop-up at the bottom of the project window
or select the "Layout/ Pages..." menu item.
Each page can also contain a number of "layers". A
layer is like a layer of glass that is laid on the
page, onto which you can draw objects. Each layer is
transparent, showing through the layers below it;
layers can be added and deleted from either the layer
pop-up at the bottom of the project window or by
selecting the "Layout/Layers..." menu item.
Layers allows you to create illustrations by drawing
the layers one at a time. For example you may want to
draw the background of an illustration first,
followed by the foreground objects. This has the
advantage that once a layer is finished it can be
made un-editable (so that you won't accidentally
change it) or displayed greyed out to make foreground
layers clearer to see. Layers can also be made
entirely invisible if required.
By default, all pages are created containing one
layer called "Layer 1". To create another layer, open
the layers requester ("Layout/Layers..." menu) and
click the "New" button; a new layer called "Layer 2"
will be created.
Click "OK" to close the requester. Now when you
create new objects they will be added to Layer 2 and
you will not be able to edit any objects that are on
Layer 1 (go on, just try moving one!).
Once you have objects on both layers you can try
changing the displaying of the layers in the layers
requester (try making a layer "greyscale" and then
"invisible"). The order of the layers can also be
changed by dragging their names in the list; layers
at the top of the list are drawn above layers lower
in list.
Text
----
Text can be added to the page using the text tool.
Try selecting the text tool and clicking on the page.
A cursor is shown and you may enter text by typing
directly onto the page - pressing the "Enter" key
will move the cursor to a newline.
The text may be justified to either left, right or
central justification using the "Text/ Alignment"
menu. To change the font style, open the font
requester ("Text/ Font..." menu) and choose a new
font.
To edit the text later, just double click on it with
the text tool.
Effects
-------
DrawStudio will allows you to warp and bend most
objects to provide a range of special effects. This
is all performed through the warp requester
("Effects/ Warp..." menu).
Create some text and make sure it is selected. Open
the warp requester. Try clicking through the range of
effects available, adjusting the slider to enhance or
reduce the scale of the effect. When you have found
an effect you wish to try, click "Warp" to apply the
effect.
Custom warps can be created by clicking on the "Use
envelope button". This draws a bounding box
"envelope" with points that can be stretched and
moved to create stretched envelope.
This is very much like stretching a rectangular piece
of rubber -once you click off the object, it will be
stretched like the envelope.
Finally...
----------
I hope this has given you a rough idea of the some of
the capabilities of the program and some of the tools
available for creating illustrations. The most
effective way to find out about the program is to
purchase the full version which will come with a
comprehensive manual. To order DrawStudio, See the
"Order Information" file.