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Use canvas polygon to draw a triangle

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#story[480]
This commit is contained in:
Haoming Yin
2017-03-27 14:26:38 +13:00
parent 55ba343426
commit bbe7cbee8f
1 changed files with 41 additions and 12 deletions
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src/main/java/seng302/controllers/CanvasController.java
+41 -12
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@@ -27,9 +27,7 @@ import seng302.models.mark.SingleMark;
import seng302.models.parsers.ConfigParser;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.*;
/**
* Created by ptg19 on 15/03/17.
@@ -64,6 +62,9 @@ public class CanvasController {
private boolean annotationCheck = true;
///test
private HashSet<Integer> headingTest = new HashSet<>();
/**
* Initialize the controller
*/
@@ -279,15 +280,13 @@ public class CanvasController {
*/
private void drawWake(GraphicsContext gc, double x, double y, double speed, Color color, double heading){
double angle = Math.toRadians(heading);
speed = speed * 0.50; // Half the size of the wake
double newX = x + speed * Math.cos(angle);//(nextX * Math.cos(angle) - nextY * Math.sin(angle)) * length;
double newY = y + speed * Math.sin(angle);//(nextX * Math.sin(angle) + nextY * Math.cos(angle)) * length;
speed = speed * 0.5; // Half the size of the wake
Point newP = new Point(0, speed);
newP.rotate(angle);
gc.setStroke(color);
gc.setLineWidth(1.0);
gc.strokeLine(x+5, y+5, newX, newY);
gc.strokeLine(x, y, newP.x + x, newP.y + y);
}
/**
@@ -304,8 +303,6 @@ public class CanvasController {
double x = (lon - ORIGIN_LON) * SCALE;
double y = (ORIGIN_LAT - lat) * SCALE;
double diameter = 9;
gc.setFill(color);
if (annotationCheck) {
@@ -314,14 +311,46 @@ public class CanvasController {
gc.setLineWidth(3);
gc.fillText(name + ", " + speed + " knots", x + 15, y + 15);
}
// double diameter = 9;
// gc.fillOval(x, y, diameter, diameter);
double angle = Math.toRadians(heading);
gc.fillOval(x, y, diameter, diameter);
Point p1 = new Point(0, -15); // apex point
Point p2 = new Point(7, 4); // base point
Point p3 = new Point(-7, 4); // base point
p1.rotate(angle);
p2.rotate(angle);
p3.rotate(angle);
double[] xx = new double[] {p1.x + x, p2.x + x, x, p3.x + x};
double[] yy = new double[] {p1.y + y, p2.y + y, y, p3.y + y};
gc.fillPolygon(xx, yy, 4);
if (annotationCheck){
drawWake(gc, x, y, speed, color, heading);
}
}
/**
* Inner class for creating point so that you can rotate it around origin point.
*/
class Point {
double x, y;
Point (double x, double y) {
this.x = x;
this.y = y;
}
void rotate(double angle) {
double oldX = x;
double oldY = y;
this.x = oldX * Math.cos(angle) - oldY * Math.sin(angle);
this.y = oldX * Math.sin(angle) + oldY * Math.cos(angle);
}
}
/**
* Draws the course.
*/