Tutors

Lab-01

Labs

Drawing Simple Shapes(contd.)

Drawing Ellipses

For our purposes here, we will define an ellipse as a basic oval shape.
The syntax of the ellipse function is:

    ellipse(x, y, w, h)
        x = x-coordinate at the centre of the ellipse
        y = y-coordinate at the centre of the ellipse
        w = width of the ellipse
        h = height of the ellipse

In the following picture, you can see an example of an ellipse.

Ellipse example from www.processing.org

Enter the following code in your open sketchbook:

    ellipse(85,50,20,60);

When you run the code, you should see the following ellipse whose centre is (85,50) and is 20 pixels wide and 90 high.

Drawing an ellipse

Drawing Circles

Using the ellipse() function, you can draw circles. Just set the width and height to the same number of pixels.
Try drawing a circle that has the coordinates (50,80) at its centre and has a diameter of 15 pixels.
Run the code. Did a circle appear?

Drawing a circle

Lab-01

Lab-01

Coding in Processing

Static Drawings