Fixed gitignore rules, added SatDisplay.java, and uncapitalized SIM_sun graphics directory. Ref #419

trick_sims/.gitignore

@@ -21,6 +21,8 @@ S_sie.resource
 S_source.cpp
 S_source.hh
 T_main_*
-trick
+**/SIM_*/trick
+**/graphics/dist/
+**/graphics/manifest
 jitlib
 build

trick_sims/SIM_sat2d/models/graphics/src/trick/SatDisplay.java

@@ -0,0 +1,206 @@
+/*
+ * Trick
+ * 2016 (c) National Aeronautics and Space Administration (NASA)
+ */
+
+package trick;
+
+import java.awt.Graphics2D;
+import java.awt.Graphics;
+import java.awt.Image;
+import java.awt.geom.AffineTransform;
+import java.awt.image.AffineTransformOp;
+import java.awt.image.BufferedImage;
+import java.io.BufferedOutputStream;
+import java.io.BufferedReader;
+import java.io.DataOutputStream;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.io.FileReader;
+import java.net.Socket;
+import java.util.*;
+import javax.swing.ImageIcon;
+import javax.swing.JFrame;
+import javax.swing.JPanel;
+import java.awt.Color;
+
+/**
+ *
+ * @author penn
+ */
+
+class SkyView extends JPanel {
+
+    private double scale; // Pixels per meter
+    private Color skyColor;
+    private Color planetColor;
+    private Color satelliteColor;
+    private int planetRadius;
+    private double[] satellitePos;
+
+    // Origin of world coordinates in jpanel coordinates.
+    private int worldOriginX;
+    private int worldOriginY;
+
+    public SkyView( double mapScale ) {
+        scale = mapScale;
+        setScale(mapScale);
+        skyColor = Color.BLACK;
+        planetColor = new Color(100,200,200);
+        satelliteColor = new Color(255,0,0);
+        planetRadius = 6378000;
+        satellitePos  = new double[] {0.0, planetRadius + 200000};
+    }
+
+    public void setSatPos (double x, double y) {
+        satellitePos[0] = x;
+        satellitePos[1] = y;
+    }
+
+    public void setScale (double mapScale) {
+        if (mapScale < 0.00005) {
+            scale = 0.00005;
+        } else {
+            scale = mapScale;
+        }
+    }
+
+    public void drawCenteredCircle(Graphics2D g, int x, int y, int r) {
+        x = x-(r/2);
+        y = y-(r/2);
+        g.fillOval(x,y,r,r);
+    }
+
+    private void doDrawing(Graphics g) {
+        Graphics2D g2d = (Graphics2D) g;
+
+        int width = getWidth();
+        int height = getHeight();
+
+        worldOriginX = (width/2);
+        worldOriginY = (height/2);
+
+        g2d.setPaint(Color.BLACK);
+        g2d.fillRect(0, 0, width, height);
+
+        //  Draw Planet
+        g2d.setPaint(planetColor);
+        drawCenteredCircle(g2d, worldOriginX, worldOriginY, (int)(scale * 2 * planetRadius));
+
+        //  Draw Satellite
+        g2d.setPaint(satelliteColor);
+        int sx = (int)(worldOriginX + scale * satellitePos[0]);
+        int sy = (int)(worldOriginY - scale * satellitePos[1]);
+        drawCenteredCircle(g2d, sx, sy, (int)(10));
+    }
+
+    @Override
+    public void paintComponent(Graphics g) {
+        super.paintComponent(g);
+        doDrawing(g);
+    }
+}
+
+public class SatDisplay extends JFrame {
+
+    private SkyView skyView;
+    private BufferedReader in;
+    private DataOutputStream out;
+
+    public SatDisplay(SkyView sky) {
+        skyView = sky;
+        add( skyView);
+        setTitle("Orbit Display");
+        setSize(800, 800);
+        setLocationRelativeTo(null);
+        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+    }
+
+    public void connectToServer(String host, int port ) throws IOException {
+        Socket socket = new Socket(host, port);
+        in = new BufferedReader( new InputStreamReader( socket.getInputStream()));
+        out = new DataOutputStream(new BufferedOutputStream(socket.getOutputStream()));
+    }
+
+    public void drawSkyView() {
+        skyView.repaint();
+    }
+
+    private static void  printHelpText() {
+        System.out.println(
+            "----------------------------------------------------------------------\n"
+          + "usage: java jar SatDisplay.jar <port-number>\n"
+          + "----------------------------------------------------------------------\n"
+          );
+    }
+
+    public static void main(String[] args) throws IOException {
+
+        String host = "localHost";
+        int port = 0;
+        String vehicleImageFile = null;
+
+        int ii = 0;
+        while (ii < args.length) {
+            switch (args[ii]) {
+                case "-help" :
+                case "--help" : {
+                    printHelpText();
+                    System.exit(0);
+                } break;
+                default : {
+                    port = (Integer.parseInt(args[ii]));
+                } break;
+            }
+            ++ii;
+        }
+
+        if (port == 0) {
+            System.out.println("No variable server port specified.");
+            printHelpText();
+            System.exit(0);
+        }
+
+        double mapScale = 0.00005; // 20,000 meters per pixel
+        SkyView skyview = new SkyView( mapScale);
+        SatDisplay sd = new SatDisplay(skyview);
+        sd.setVisible(true);
+        double satX = 0.0;
+        double satY = 0.0;
+
+        System.out.println("Connecting to: " + host + ":" + port);
+        sd.connectToServer(host, port);
+
+        sd.out.writeBytes("trick.var_set_client_tag(\"SatDisplay\") \n");
+        sd.out.flush();
+
+        sd.out.writeBytes("trick.var_add(\"dyn.satellite.pos[0]\") \n" +
+                          "trick.var_add(\"dyn.satellite.pos[1]\") \n" );
+        sd.out.flush();
+
+        sd.out.writeBytes("trick.var_ascii() \n" +
+                           "trick.var_cycle(0.1) \n" +
+                           "trick.var_send() \n" );
+        sd.out.flush();
+
+        Boolean go = true;
+
+        while (go) {
+            String field[];
+            try {
+                String line;
+                line = sd.in.readLine();
+                field = line.split("\t");
+                satX = Double.parseDouble( field[1] );
+                satY = Double.parseDouble( field[2] );
+
+                // Set the Satellite position
+                skyview.setSatPos(satX, satY);
+
+            } catch (IOException | NullPointerException e ) {
+                go = false;
+            }
+            sd.drawSkyView();
+        }
+    }
+}