R. Craig Collins >
Intro to Computer Graphics >
Lab 2
Lab 2 ©
R. Craig Collins, 2007
General Lab Directions
Note: There is not enough time in lecture to cover all
the material; go over the reading material BEFORE you begin the lab
Note: Typically labs will require you to invest some time in the lab, outside
of class lecture hours
•Note: Please read the related overview material before continuing
Check with your Instructor for due date, typically Friday, 11:59PM (see due
dates)
•Begin creating and testing the Lab (link to graphic construction requirements) |
•Answer questions concerning topics covered in the Lab
(You will later transfer this information into
a D2L quiz)
You may download an acrobat or word processing document to help you with this. |
At the end of this process,
1) you will submit the web page files by zipping them, and placing them in the Desire2Learn dropbox area. Instructions on zipping are below.
2) you will be 'turning
in' your documentation and Q&A by taking the ARTC Lab 2: quiz in the Quizzes area of Desire2Learn.
So, to get the best score, complete the documentation and Q&A as directed
below, first.
• Optional: Open/save an Acrobat pdf document to help with documentation and questions
(get Adobe Acrobat Reader free, here)
• Optional: Right click/save a Word doc document to help with documentation and questions
• Optional: Right click/save a Rich Text rtf document to help with documentation and questions
Part 1, Activity (40%):
You may download an acrobat or word processing document to help you with this.
• Create a folder named lab2
• Create an image using Microsoft Paint, and save as a 24 bit .bmp file
DO something interesting!
• Include many different colors, lines, circles, etc.
• Save as a 24 bit .bmp file called 24bit.bmp
• Save as a 256 color.bmp file called 8bit.bmp
• Save as a 16 color .bmp file called 4bit.bmp
• Save as a monochrome .bmp file called 2bit.bmp
• Close Paint
• Start a new Paint session, and open 24bit.bmp
• Save as a tiff file called 24bit.tif
• Close Paint
• Start a new Paint session, and open 24bit.bmp
• Save as a gif file called 24bit.gif (will warn about color loss)
• Close Paint
• Browse to you lab2 folder, and compare file size.
• Right click each image, and choose Preview to compare how the images look
• Zip the lab2 folder, rename it to yourname-lab2.zip and submit in the D2L Lab 2 dropbox
Grade Points
30 points: lab2 folder contains 24bit.bmp, 8bit.bmp, 4bit.bmp, 2bit.bmp, 24bit.tif, and 24bit.gif (6 pt ea)
10 points: lab2 zipped, renamed yourname-lab2.zip and uploaded to D2L dropbox |
Part 2: Hands On (60%): Be prepared to discuss/demonstrate new tools and concepts used in this lab.
You may download an acrobat or word processing document to help you with this.
At the end of this process, you will be turning in answers
using the Quizzes area of Desire2Learn,
based on the following questions. So, to get the best score, fill in all the
answers in this document first.
Answer the following questions
- True or False: gif stands for Great Image Format
- gif is a ______ image type
a) vector
b) raster
c) pixelmap
d) iTunes
- gif is best suited for
a) photographs
b) simple line drawings with few colors
c) simple line drawings with millions of colors
d) music files
- gif files are typically used
a)
on the internet
b) for saving photographs
c) for printing photographs
d) to compress photographs
- True or False: the gif format is protected by a current patent
- What features are supported in new gif files? (Choose all that apply)
a) 24 bit color
b) animation
c) high resolution
d) transparency
e) 256 color
f) non-interlaced
g) interlacing
- Telling the computer to ignore part of an image is
a) transparency
b) animation
c) interlacing
d) compression
- Displaying a image gradually, until the image fills in, is called
a) transparency
b) animation
c) interlacing
d) compression
- Displaying one image, followed by another image, is called
a) transparency
b) animation
c) interlacing
d) compression
- Match the file types according to quality and file size
|
24 bit bitmap |
Large file size, high resolution file with millions of possible colors |
|
dither |
|
|
256 color bitmap |
Large file size, low resolution file with millions of possible colors |
|
16 color bitmap |
|
|
monochrome bitmap |
Small file size, 256 color limit, suitable for use on the Internet |
|
tiff |
|
|
gif |
mixing colored dots to approximate another color |
|
Problems? Zip the entire folder and attach to an email:
•Send the mail to your instructor,
cc yourself
•The subject line should include
your name, your class, your section, and what you are submitting
•Make sure you attach the zipped file
SUBMITTING THE LAB
In Windows, zip the entire
lab2 directory, and rename to yourname-lab2.zip.
•Example: yourname-lab2 or yourname-lab2.zip
(if your extensions are visible)
Log into Desire2Learn, choose
this class, choose Dropbox, and select Lab 2.
Browse to yourname-lab2.zip and upload it. (Scroll down to see detailed
instructions)
You will then transfer your answers to the D2L Quiz for lab 2. You may use your
notes for this part of lab.
Choose the Quizzes menu, and locate IMED Lab 3: backgrounds/paths.
• Using
D2L dropbox • Using
D2L Quizzes • Logon
to D2L
To submit by Temple College Desire2Learn:
•Log into D2L, scroll to the bottom, and choose the
correct course
•When the Course Home Page appears,
click on the Dropbox link.
•You may click on Discussions, Dropbox, or Quizzes below, for more info
Dropbox directions
-
1. Choose the class for which you want to drop off an assignment.
2. Find the Dropbox tool, click on it.
3. Choose the appropriate Dropbox folder, click on it.
4. Choose [Add a File], then choose [Browse]; you may need to choose (My) Computer first
5. Find the file that you would like to upload and click open, then choose [Upload]
6. Type in a short description or comment about the file, if you like.
7. Select [Add] for any additional files that may be pertinent, and repeat
8. After your files have been selected, click [Submit]. (To upload and submit you will always click at least twice)
9. Some files may take a long time to upload (especially if there
are graphics in the file).
- Did my file get through?
1. Go to the Dropbox tool
2. Click the number under Submissions
3. All of the assignments that have been submitted will be listed.