Class notes
Unit 1 - Creating drawings
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Course was done online during covid using CMU CS Academy with Vincent Massey Secondary School (VMSS)
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Unit 1 - Creating drawings:Monday, November 23, 2020 9:13 AM
Section 1.1 The basics:
Sub-section 1.1.2 - Position and size:
Coding:
Rectangle code: Rect(10,20,30,40)
Lesson 2 - The canvas:
- (0, 0) is the left-top corner of the canvas (no
middle!).
- As x increases, you head right.
- As y increases, you head down, not up!
- Our canvas is a 400x400 square, so (200, 20
middle of the canvas, and (400, 400) is the
corner.
- We use Rect to draw a rectangle. We provid
after that: left, top, width, and height.
Lesson 5 - Errors:
Case matters, so Rect is not the same as rect.
A command must have the right number of values after it. For Rect, that's left, top, wi
and height.
These values are called arguments. Here are some rules about arguments:
- They must be in the right order.
- They must be inside parentheses.
- They must be separated by commas.
Lesson 6 - Comments:
Did you notice some of the code examples above included # signs followed by Englis
These are called comments. You can add comments to any line of your code. Anythin
# sign to the end of that line is a comment. Python ignores comments. They are only f
not Python. So why use comments? To make your code easier for you and for others t
understand!
Section 1.2 Colours: Lesson 1 - Fills:
Subsection 1.2.1 - Fills and borders: When using fill, here are s
Fill code: Rect(50, 50, 100, 100, fill=“green”)
- Include fill after the
arguments -- left, top
- Always place an equ
color name.
- Put quotes around th
can use either single
double quotes, like “
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