ProgZoo Drawing flags with lines

1. Scotland

The cross of St. Andrew shows diagonal lines on a blue background.

Complete the flag by drawing the other diagonal line.
The white lines should be slightly thicker - try 60.

To draw thick lines we need a Pen. We can create a Pen using a phrase such as:

Pen p = new Pen(Brushes.White, 40);

test text

2. England

The English flag is the cross of St. George. This is a red cross on a white background.

The line thickness should be ¹/₅ of the height of the flag.

test text

3. Greece

The flag of Greece has 5 blue stripes and 4 white stripes.
Each stripe has width 40.
Note that we let the computer do the arithmetic. Each stripe should be 80 pixels below the previous one.
The expression 20+i*80 - where i is 0, 1, 2, 3, 4 gives the height of the middle of each blue stripe.
The expression 60+i*80 - where i is 0, 1, 2, 3 gives the height of the middle of each white stripe.
You must include another two blue stripes and four white stripes.

for loops

We are not ready for for loops yet. Do not look at the hint below - these tutorials have been carefully put in order and you will subvert a logical structure if you go on to for loops before you have completed the preparatory material!

how to use a for loop

  for(int i=0;i<5;i++)
    g.drawLine(0,20+i*80,600,20+i*80);

test text

4. Trinidad and Tobago

We can start and end lines outside the confines of the surface.

Two pens

We can create a second pen to draw the black line.

Pen nb = new Pen(Brushes.Black,100);

test text

A Gentle Introduction to
C# Programming

Tutorial: Drawing flags with lines

1. Scotland

2. England

3. Greece

4. Trinidad and Tobago

A Gentle Introduction to C# Programming

Tutorial: Drawing flags with lines

1. Scotland

2. England

3. Greece

4. Trinidad and Tobago

A Gentle Introduction to
C# Programming