Chapter 9 Subroutine

Chapter 10 Array

Chapter 8 Turtle Graphics
- Moving and drawing
- Drawing square
- Changing color

Chapter 6 Beginning graphics

Showing graphicsWindow
GraphicsWindow.Show()

Setting up graphics window
Graphicswindow.backgroundcolor = "SteelBlue"
Graphicswindow.Title = "My Graphic Window"
GraphicsWindow.Width = 320
GraphicsWindow.Height = 200
GraphicsWindow.show()

We can draw line, shapes, text and picture.
Drawing lines
Example drawing line:
GraphicsWindow.DrawLine(0,0,10,10)

Drawing shapes:
Shapes = rectangle, ellipse, triangle

Example drawing rectangle:
GraphicsWindow.DrawRectangle(100,100,10,10)

Example drawing ellipse
GraphicsWindow.DrawEllipse(10,10,100,100)

Example drawing triangle
GraphicsWindow.drawtriangle(200,200,300,300,400,400)

Change shapes line color:
graphicswindow.


Filling shapes
Shapes = rectangle, ellipse, triangle

Example filling rectangle shapes:
GraphicsWindow.fillrectangle(

Example filling ellipse shapes:
GraphicsWindow.fillellipse(

Example filling triangle ellipse

Change shapes brush color
GraphicsWindow.Brushcolor = "Green"





Usage:
GraphicsWindow.Drawline(starting x coordinates, starting y coordinate, ending x coordinate, ending y coordinate)

Example:
- Changing pen color
GraphicsWindow.pencolor = "Green"
or
GraphicsWindow.pencolor = #FF0000

- Changing pen thickness
GraphicsWindow.PenWidth = 10

- Drawing and filling shapes
Draw operations, and
Filling operations

Draw operations: draw the outline of the shape using a pen
Filling opearations:  paint the shape using brush

Chapter 5 Loops
there are usually several ways of doing the same thing.

1. For.. Endfor
For loops run for a pre-defined number of times.

For i = 0 to 4
    textwindow.writeline(i)
endfor

for i = 0 to 4 step 2
    textwindow.writeline(i)
endfor

2. While loop
While loop runs until a given condition achieved / true.

Chapter 4 Conditions and branching
If(condition) then ... endif
If(condition) then ... endif

Chapter 3

Chapter 2 Understanding Our First Program

Chapter 1