|
back
to articles
back
to articles
back
to articles
back
to articles
back
to articles
back
to articles
|
When
one thinks of input devices, keyboards, mice and trackballs
instantly come to mind. Keyboards are essential for the input
of text data, a mouse or trackball allows users to navigate
the desktop and choose from menus. One of the major limitations
of traditional input devices is that they do not allow users
to dynamically control cursor movements. The most powerful
and dynamic input device available on the market is the graphics
tablet.
A
graphics tablet is a rectangular device that can track the
movement and proximity of a hand held device. The tablet surface
often integrates a recessed plastic overlay that makes tracing
existing artwork a snap. Tablets are complimented by a stylus,
a pen shaped device that fits comfortably and naturally in
ones hand. The tablet tracks the position of the pressure
sensitive tip of the stylus. The combination of tracking (controls
the position of the cursor) and pressure detection makes for
a very dynamic and natural drawing experience. The key word
is drawing; graphics tablets are intended for artistry, not
menu hunting. Making the transition from a mouse to a tablet
can be tricky.
The
biggest obstacle in learning how to work a tablet is overcoming
the habit of treating the stylus as if it were a mouse. With
a mouse, users are accustomed to working the mouse in a confined
area, next to the keyboard on a small mouse pad. Mousers frequently
drag the cursor across the screen by repeatedly lifting the
mouse off of the mouse pad in a sweeping motion to creep the
cursor in the desired direction. With a stylus, where you
point is where you go. At first, this seems counterintuitive.
Your natural reaction is to want to drag and lift, as you
would a mouse. The surface of the tablet mirrors the surface
of your desktop, in other words, if you want to go to the
top of your desktop, point at the top of the tablet. Pressing
down on the tablet corresponds to the left click on a mouse.
A button is often located on the stylus, activating the right
click or context sensitive menu. The real power of a tablet
comes from being able to dynamically control such properties
as size, transparency, color blending, etc. simply by pressing
harder or softer on the surface of the tablet. This makes
for a very natural experience- virtual artistry!
The
two industry leaders in graphics tablet technology are Wacom
and CalComp. Wacom currently leads the visual graphics industry,
while CalComp has a stronger CAD following. I have had the
pleasure of using tablets from each manufacturer.
I
worked frequently with CalComps SummaGraphics III tablet during
my time with a former employer, 1999 - 2001. The SummaGraphics
III (priced at about $330.00) has a 12" x 12" drawing
surface, corded stylus, 2540 lpi resolution and a data rate
of 114 per second. I mainly used the SummaGraphics III to
make selections in Photoshop and occasionally to draw comics
with. I never could get the pressure sensitivity plugin to
work correctly, so I could never take advantage of dynamic
brushes in Photoshop. The biggest draw back to the model I
had is that the stylus is attached to the tablet by a cord.
Drawing was often encumbered by having to repeatedly push
the cord out of the way. The stylus was natural to pick up
and draw with, but was rather thin and did not feel molded
for the hand due to its lack of contour. I also could not
use my trackball with it, there was apparently a conflict
with the Logitech driver, none of the tech guys could get
both to work at the same time. I gave up the trackball for
the tablet, opting to switch to the trackball whenever I worked
with 3d projects.
Wacom
makes a range of products for consumer and professional use.
The most affordable tablet is the Graphire2. Priced at $99.95,
the Graphire comes in a variety of colors, has a very small
footprint and is designed with the average consumer in mind.
On the high end, the Cintiq is one of Wacom's latest products.
The Cintiq is a touch sensitive LCD screen that doubles as
a drawing surface, so you literally draw on screen and see
results in real time. The most established professional tablet
is the Intuos2, which ranges in price from $199.99-$659.99.
Upon
receiving the Intuos2 (figure
1), I opened up the box to inspect the contents. One tablet,
one cordless stylus, one cordless mouse, 2 CD ROMs and documentation.
Everything seemed to be in order, so I began the set up procedure.
Set up can be a daunting task: conflicts, driver updates,
not enough USB ports- it's enough to drive you nutty. I have
an ergonomic keyboard which doubles as a USB hub plugged into
my USB port #1 on my computer. I have a scanner connected
to the keyboard hub, and an external USB CD burner occupying
the #2 USB port on my computer. The only available port was
the one on the hub. As soon as I plugged in the Intuos2, my
computer reported that the hub could not power the device.
I switched locations with my CD burner and continued with
the set up.
The
driver install was very quick. Included in the bundle were
2 free Nix Photoshop plug ins. The Intuos2 comes with a full
version of Procreates Painter Classic v2, a paint and natural
media simulator. I was excited to be able to play with Painter,
as I have read good things about this program. Unfortunately,
I couldn't get Painter to work. The program installs and loads,
but the screen doesn't seem to be drawing correctly. I looked
online at various websites in search of an update, but found
updates for version 6 and 7.
Configuring
the Intuos2 control panel (figure
2) was pretty simple. There are controls for stylus and
mouse alike. Control and test areas are obvious and easy to
use allowing users to program buttons, control cursor speed,
compensate for stylus tilt and more. The stylus itself is
well designed on several levels. The stylus fits well in your
hand. Its broad, contoured shape is inlaid with a rubberized
grip that cushions your fingers. A dual-position button is
accessible with either your index finger or thumb. One direction
opens the context menu, the other performs a double click.
I was most impressed by the stylus' eraser function. Simply
turn the stylus around and draw with the reverse side, the
stylus is now in eraser mode. The mouse is comfortable and
comes with a scroll button and four mouse buttons, all programmable.
I found myself using my old mouse instead, simply because
I'm used to the location next to my keyboard.
My
desk isn't big enough to accommodate an ergonomic keyboard
and a large graphics tablet. I pushed the keyboard slightly
forward to allow the tablet to rest on my lap, propped up
by the edge of the desk. This worked fine for the stylus,
but the mouse was a little unnatural. The tablet really needs
to rest flat on the desk to be able to use the mouse effectively.
A fully programmable shortcut menu is located at the top of
the tablet with function like undo, cut, copy, paste, print
and save. QuickPoint technology allows users to set up 2 regions
on the tablet, one for detailed work, the other for getting
quickly across the screen. Photoshop integrates the Wacom
drivers seamlessly. There are over 20 tools in Photoshop that
support dynamic brush controls (figure
3) with the Wacom tablet. Each brush in Photoshop can
be controlled dynamically with the stylus, creating an endless
combination of settings. Making selections and painting in
Photoshop is greatly enhanced with an Intuos2.
I
was impressed with the Intuos2. The level of sensitivity is
amazing, and the tablet is very responsive. A solid set of
utilities makes customizing your workspace a breeze. The tablet
and peripherals are sleek and attractively colored. Working
with the stylus was very comfortable and intuitive. The trouble
I did have was minor: having to swap devices on my USB hub,
some of the 3rd party software didn't work and the plastic
overlay sheet was hard to lift. Give yourself plenty of desk
space and prepare to spend some time getting used to the feel
of the stylus and mouse. Serious enthusiasts or professionals
will appreciate the subtly in control and comfort the Intuos2
provides.
|