示例#1
0
文件: Plot.java 项目: kranjan94/Math
 /*
  * Input should be in form:
  * 		java Plot x1,y1 x2,y2 ...
  */
 public static void main(String[] args) {
   LinkedList<Comparable> points = new LinkedList<Comparable>();
   for (String s : args) {
     points.add(readPoint(s));
   }
   int[] bounds = getLimits(points);
   int xMax = bounds[0];
   int xMin = bounds[1];
   int yMax = bounds[2];
   int yMin = bounds[3];
   System.out.println("Plotting " + points + ":");
   points = sortPoints(points);
   Iterator<Comparable> pointsIt = points.iterator();
   Point curr = (Point) pointsIt.next();
   if (curr == null) // No points given
   curr = new Point(xMax + 1, yMax + 1); // Will never be plotted
   for (int j = yMax; j >= yMin; j--) {
     for (double i = xMin; i <= xMax; i += 0.5) {
       if (i == curr.x && j == curr.y) { // Point
         System.out.print("*");
         if (pointsIt.hasNext()) curr = (Point) pointsIt.next();
       } else if (i % 5 == 0 && j % 5 == 0) { // Origin or 5-point marks
         System.out.print("+");
       } else if (i == 0) { // Y-axis
         if (j == yMin) {
           System.out.print("v");
         } else if (j == yMax) {
           System.out.print("^");
         } else {
           System.out.print("|");
         }
       } else if (j == 0) { // X-axis
         if (i == xMin) {
           System.out.print("<");
         } else if (i == xMax) {
           System.out.print(">");
         } else {
           System.out.print("-");
         }
       } else {
         System.out.print(" ");
       }
     }
     System.out.print("\n");
   }
 }
示例#2
0
文件: Plot.java 项目: kranjan94/Math
 /**
  * Finds the upper bounds on the absolute values of the coordinates for the points
  *
  * @param points list of points
  * @return {maximum x, minimum x, maximum y, minimum y}
  */
 private static int[] getLimits(LinkedList<Comparable> points) {
   int[] bounds = {0, 0, 0, 0};
   Iterator<Comparable> it = points.iterator();
   while (it.hasNext()) {
     Point point = (Point) it.next();
     bounds[0] = Math.max(bounds[0], point.x);
     bounds[1] = Math.min(bounds[1], point.x);
     bounds[2] = Math.max(bounds[2], point.y);
     bounds[3] = Math.min(bounds[3], point.y);
   }
   return bounds;
 }