Map

// Oliver Haimson alhaimso

// Homework 3

// Copyright 2012

​

// map image and image code from Ben Fry, 

// Visualizing Data, Chapter 3, copyright 2008

​

// INSTRUCTIONS:

//

// Use this interactive U.S. map to map out your travels!

//

// Click anywhere on the map to add a dot for your first location.

// Click anywhere else on the map to add a second dot for your second location,

// which is connected by a line to your first location.

// Keep clicking to add as many locations as you'd like.

//

// Press the spacebar to make future dots a random color.

// Press the spacebar again to make future dots white.

// Press any other key to erase your map and start over.

​

​

float x, y, x1, y1, wd, ht, s; 

boolean firstClick;

boolean randomFill;

PImage mapImage;

​

void setup()

{

  size(640,400);

  smooth();

  //background map

  mapImage = loadImage("map.png");

  image(mapImage, 0, 0);

  x = 100;

  y = 100;

  x1 = 100;

  y1 = 100;

  wd = 10;

  ht = 10;

  firstClick = true;

  randomFill = false;

}

​

void draw()

{

// nothing in the draw function because nothing is drawn unless the mouse is pressed

}  

​

void keyPressed()

{

  // if the space bar is pressed, the circles will be filled with random colors

  // if the space bar is pressed again, circles go back to white

  if (key == ' ') 

    {randomFill=!randomFill;}

  // if any other key is pressed, the map is cleared

  else setup();

}

​

void mousePressed()

{

  // deal with issue of no line to first dot

  if (firstClick) 

  {

     x = mouseX;

     y = mouseY;

     firstClick = false;

  }

  // connect each dot to the previous dot

  else

  {

    line(x,y, mouseX, mouseY);

    x = mouseX;

    y = mouseY;

  }

  // draw circle

  if (randomFill==true)

    {fill(random(255),random(255),random(255));}

  else {fill(255);}

  ellipse(mouseX,mouseY,wd,ht);

}

​

​

​