Individual Homework 1 – Python Practice & Face

CS 1301
Individual Homework 1 – Python Practice & Face

Out of 100 points
Files to submit: 1. HW1.py
2. face.py
This is an INDIVIDUAL assignment!
Collaboration at a reasonable level will not result in substantially similar code. Students
may only collaborate with fellow students currently taking CS 1301, the TA's and the
lecturer. Collaboration means talking through problems, assisting with debugging,
explaining a concept, etc. You should not exchange code or write code for others.
For Help:
- TA Helpdesk – Schedule posted on class website.
- Email TA's or use T-Square Forums
Notes:
• Don’t forget to include the required comments and collaboration
statement (as outlined on the course syllabus).
• Do not wait until the last minute to do this assignment in case you run into
problems.
Part 1 – Simple Functions
You will write a few python functions for practice with the language. In your HW1.py
file, include a comment at the top with your name, section, GTID/Email, and your
collaboration statement. Also include each of the following functions.
1. machToFPS
2. sqPyramidVolume
3. makeChange
4. PPIIndex
Function Name: machToFPS
Parameters:
None
Return Value:
None
Description:
1. Write a user-interactive function to convert speeds in mach to feet per seconds
(FPS).
2. Get the speed in mach(s) from the user; make sure to use a descriptive prompt so
the user knows what to enter (e.g. “Enter the speed in mach”). You may assume
that the user will enter a valid float (e.g. 34.4) and do not have to do error
checking.
3. Convert the speed entered by the user to FPS, using the conversion factor below:
1 mach = 1116.4370079 feet / second
4. Print the converted speed, be sure to add a label to the display value so the user
knows what the value means (e.g. display “38405.433071 feet/second” instead of
just 38405.433071)
Function Name: sqPyramidVolume
Parameters:
None
Return Value:
None
Description:
Write a user-interactive function to calculate the volume of a square pyramid.
1. Get the length of one side of the base in inches from the user; make sure to use a
descriptive prompt so the user knows what to enter.
2. Get the height in inches; again, make sure to use a descriptive prompt so the user
knows what to enter.
3. Calculate the volume of a square pyramid with the base length and height entered
by the user; note the volume of a square pyramid is calculated using the formula
below:
Volume = (Base x Height) / 3
4. Print the calculated volume; be sure to add a label to the display value so the user
knows what the value means (e.g. display “Volume of the square pyramid is 35
inches-cubed” instead of just 35)
Function Name: makeChange
Parameters:
None
Return Value:
None
Description:
Write a user-interactive function to convert any number of cents to the equivalent number
of dollars, quarters, dimes, nickels, and pennies.
1. Get the number of cents as an integer from the user; make sure to use a
descriptive prompt so the user knows what to enter.
2. Calculate the total number of dollars, quarters, dimes, nickels and pennies
represented by the original number of cents , using the following hints:
-There are 100 cents in a dollar.
-There are 25 cents in a quarter.
-There are 10 cents in a dime.
-There are 5 cents in a nickle.
-The modulo (a.k.a. remainder) operator in python is % and will show the
remainder left after an integer division. It IS useful for this problem!
3. Print the calculated number of dolars, quarters, dimes, nickles and pennies on one
line; be sure to add appropriate labels to the display values so the user knows
what the value means (e.g. if the user enters 12342 cents, you should display “123
dollars, 1 quarter, 1 dime, 1 nickel and 2 pennies”)
Function Name: PPIIndex
Parameters:
None
Return Value:
None
Description:
Write a user-interactive program to calculate a person's corrected PPI (pounds per inch)
ratio.
1. Ask for the person’s weight in pounds; make sure to use a descriptive prompt so
the user knows what to enter.
2. Ask for the person’s height in inches; again, use a descriptive prompt.
3. Calculate the person’s PPI using the information they provided and the formula
below:
PPI = Users Weight / Users Height (inches) * 1.125
4. Print the result. The value must be formatted (both the wording and the number of
decimal places) EXACTLY as follows: “Your corrected PPI is 2.2.” (where the
value for PPI represents whatever you calculated based on the inputs, and their is
a single digit after the decimal place. Note the period after the last digit). You may
have to use string formatting to remove extra decimal places from your
calculation.
Graphics Intro
So you’re sitting there, looking at your Python window, and you find it to be, well,
impersonal. So why don’t we add a little personality to it? How about…a face!
Hey! That looks much friendlier. And you can do it all with python! Specifically, using
the Graphics library built into Calico. The graphics library contains a multitude of
commands for making graphics. See the documentation here:
http://calicoproject.org/Calico_Graphics
For this assignment, we will be focusing on the graphics aspects, so you won’t need your
robot. Both the link given above, as well as the PDF for the Graphics Reference will be
rather helpful.
Part 2 – Making the Face (50 Points)
Files to submit: face.py
Your mission, should you choose to accept it (and we recommend that you do), is to
make a face in Python. You need to create a program that initializes a graphics window,
and draws the face. When you are done, save your program as “face.py”. Make sure that
your filename matches this exactly, or you will lose points! Don’t forget to include any
necessary import statements needed to use the Graphics library or Myro functions and a
comment at the top with your name, section, GTID/Email, and your collaboration
statement
The face should contain:
• A Head
• 2 Eyes
• A Nose
• A mouth
• At least 2 different colors
• A tattoo (any design that combines more than one shape)
Try to keep things in a general face alignment here (Sorry to all you budding Picassos out
there), but the tattoo and shapes can be whatever you want. Be creative (and inoffensive)!
Grading Rubric
Grading
You will earn points as follows for each function that works correctly
according to the specifications.
Simple Function 50 points total
machToFPS 5
sqPyramidVolume 10
makeChange 20
PPIIndex 15
Face 50 points total
50 points
File named correctly (face.py) – 5 points
Creates a graphics window – 10
Draws a head – 5
Draws 2 eyes – 5
Draws a nose – 5
Draws a mouth – 5
Uses at least 2 different colors - 5
The facial features are properly aligned – 5
Draws a tattoo by combining more than one shape – 5
Total for Face: 50 points
You can earn up to 3 points bonus [discretion of the TAs] for extra creativity/general
awesomeness, for a possible total of 103/100.