示例#1
0
 public static void drawLineFromEquation(double a, double b, double c) {
   // Draw the equation ax+by+c=0 in the available range.
   DrawObject L = new DrawObject();
   L.color = lineEqnColor;
   L.a = a;
   L.b = b;
   L.c = c;
   L.sequenceNum = currentSequenceNum;
   L.drawStroke = drawStroke;
   synchronized (eqnLines) {
     eqnLines.add(L);
   }
   drawArea.repaint();
 }
示例#2
0
 public static void drawRectangle(double x1, double y1, double width, double height) {
   DrawObject R = new DrawObject();
   R.color = rectangleColor;
   R.x = x1;
   R.y = y1;
   R.width = width;
   R.height = height;
   R.sequenceNum = currentSequenceNum;
   R.drawStroke = drawStroke;
   if (animationMode) {
     synchronized (animRectangles) {
       animRectangles.add(R);
     }
   } else {
     synchronized (rectangles) {
       rectangles.add(R);
     }
   }
   drawArea.repaint();
 }
示例#3
0
 public static void drawLine(double x1, double y1, double x2, double y2, boolean isArrow) {
   DrawObject L = new DrawObject();
   L.color = lineColor;
   L.x = x1;
   L.y = y1;
   L.x2 = x2;
   L.y2 = y2;
   if (isArrow) {
     L.color = arrowColor;
     L.isArrow = true;
   }
   L.sequenceNum = currentSequenceNum;
   L.drawStroke = drawStroke;
   if (animationMode) {
     synchronized (animLines) {
       animLines.add(L);
     }
   } else {
     synchronized (lines) {
       lines.add(L);
     }
   }
   drawArea.repaint();
 }