Home > Miscellaneous > Math 130

Instructions | Colours | Explanation | Source Code

Applet Instructions:

File Drop Down Menu:

Use this menu to select the dataset to display.

Slider:

The slider controls the water level. Higher numbers represent higher contour levels. Setting the slider to a higher value causes the water to rise higher.

Buttons:

• Step
  Causes the water level to rise one level.
• Animate
  Causes the water to rise one level at a time. Once the maximum level has been reached, the water level resets to the minimum level.
• Stop
  Stops the animation.
• Reset
  Resets the water level to zero, and stops the animation if necessary.

Colour interpretations:

• Green = "Land"
  The brighter the green, the higher the land is above water.
• Blue = "Water"
  Dark blue represents deep water, light blue represents shallow water.
• Brown = "Beach"
  This level is just above the water.

Explanation:

Project write-up.

This applet illustrates the relation:

#Peaks + #Pits - #Passes = #Islands

Source Code:

• MorseDemoApp.java
  The main class. The demo can be run as both an applet in a browser and as a standalone application.
• MorseCanvas.java
  The canvas for drawing and animating the elevation data.
• ContourTree.java
  A data structure for storing the elevation contours in a tree.
• LinkedList.java
  A small generic linked list class.
• Lib.java
  A small library containing methods for reading integers and doubles from a text file.

Instructions | Colours | Explanation