package net.sf.openrocket.rocketcomponent;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.List;
+
+import net.sf.openrocket.l10n.Translator;
import net.sf.openrocket.logging.LogHelper;
import net.sf.openrocket.startup.Application;
import net.sf.openrocket.util.ArrayList;
import net.sf.openrocket.util.BugException;
import net.sf.openrocket.util.Coordinate;
-import java.util.Arrays;
-import java.util.Collections;
-import java.util.List;
-
public class FreeformFinSet extends FinSet {
private static final LogHelper log = Application.getLogger();
-
+ private static final Translator trans = Application.getTranslator();
+
private ArrayList<Coordinate> points = new ArrayList<Coordinate>();
-
+
public FreeformFinSet() {
points.add(Coordinate.NUL);
points.add(new Coordinate(0.025, 0.05));
points.add(new Coordinate(0.075, 0.05));
points.add(new Coordinate(0.05, 0));
-
+
this.length = 0.05;
}
-
-
+
+
public FreeformFinSet(Coordinate[] finpoints) throws IllegalFinPointException {
setPoints(finpoints);
}
-
+
/*
public FreeformFinSet(FinSet finset) {
Coordinate[] finpoints = finset.getFinPoints();
final RocketComponent root = finset.getRoot();
FreeformFinSet freeform;
List<RocketComponent> toInvalidate = Collections.emptyList();
-
+
try {
if (root instanceof Rocket) {
((Rocket) root).freeze();
}
-
+
// Get fin set position and remove fin set
final RocketComponent parent = finset.getParent();
final int position;
} else {
position = -1;
}
-
+
// Create the freeform fin set
Coordinate[] finpoints = finset.getFinPoints();
"freeform fin, fin=" + finset + " points=" + Arrays.toString(finpoints),
e);
}
-
+
// Copy component attributes
toInvalidate = freeform.copyFrom(finset);
-
+
// Set name
final String componentTypeName = finset.getComponentName();
final String name = freeform.getName();
-
+
if (name.startsWith(componentTypeName)) {
freeform.setName(freeform.getComponentName() +
name.substring(componentTypeName.length()));
}
-
+
// Add freeform fin set to parent
if (parent != null) {
parent.addChild(freeform, position);
}
-
+
} finally {
if (root instanceof Rocket) {
((Rocket) root).thaw();
}
return freeform;
}
-
-
+
+
/**
* Add a fin point between indices <code>index-1</code> and <code>index</code>.
*/
public void addPoint(int index) {
double x0, y0, x1, y1;
-
+
x0 = points.get(index - 1).x;
y0 = points.get(index - 1).y;
x1 = points.get(index).x;
y1 = points.get(index).y;
-
+
points.add(index, new Coordinate((x0 + x1) / 2, (y0 + y1) / 2));
// adding a point within the segment affects neither mass nor aerodynamics
fireComponentChangeEvent(ComponentChangeEvent.NONFUNCTIONAL_CHANGE);
}
-
-
+
+
/**
* Remove the fin point with the given index. The first and last fin points
* cannot be removed, and will cause an <code>IllegalFinPointException</code>
if (index == 0 || index == points.size() - 1) {
throw new IllegalFinPointException("cannot remove first or last point");
}
-
+
ArrayList<Coordinate> copy = this.points.clone();
copy.remove(index);
validate(copy);
this.points = copy;
-
+
fireComponentChangeEvent(ComponentChangeEvent.BOTH_CHANGE);
}
-
-
+
+
public int getPointCount() {
return points.size();
}
-
+
public void setPoints(Coordinate[] points) throws IllegalFinPointException {
ArrayList<Coordinate> list = new ArrayList<Coordinate>(points.length);
for (Coordinate p : points) {
}
validate(list);
this.points = list;
-
+
this.length = points[points.length - 1].x;
fireComponentChangeEvent(ComponentChangeEvent.BOTH_CHANGE);
}
-
-
+
+
/**
* Set the point at position <code>i</code> to coordinates (x,y).
* <p>
public void setPoint(int index, double x, double y) throws IllegalFinPointException {
if (y < 0)
y = 0;
-
+
double x0, y0, x1, y1;
-
+
if (index == 0) {
-
+
// Restrict point
x = Math.min(x, points.get(points.size() - 1).x);
y = 0;
y0 = Double.NaN;
x1 = points.get(1).x;
y1 = points.get(1).y;
-
+
} else if (index == points.size() - 1) {
-
+
// Restrict point
x = Math.max(x, 0);
y = 0;
y0 = points.get(index - 1).y;
x1 = Double.NaN;
y1 = Double.NaN;
-
+
} else {
-
+
x0 = points.get(index - 1).x;
y0 = points.get(index - 1).y;
x1 = points.get(index + 1).x;
y1 = points.get(index + 1).y;
-
+
}
-
+
// Check for intersecting
for (int i = 1; i < points.size(); i++) {
px1 = points.get(i).x;
py1 = points.get(i).y;
-
+
if (i != index - 1 && i != index && i != index + 1) {
if (intersects(x0, y0, x, y, px0, py0, px1, py1)) {
throw new IllegalFinPointException("segments intersect");
throw new IllegalFinPointException("segments intersect");
}
}
-
+
px0 = px1;
py0 = py1;
}
-
+
if (index == 0) {
-
+
System.out.println("Set point zero to x:" + x);
for (int i = 1; i < points.size(); i++) {
Coordinate c = points.get(i);
points.set(i, c.setX(c.x - x));
}
-
+
} else {
-
+
points.set(index, new Coordinate(x, y));
-
+
}
if (index == 0 || index == points.size() - 1) {
this.length = points.get(points.size() - 1).x;
}
fireComponentChangeEvent(ComponentChangeEvent.BOTH_CHANGE);
}
-
-
+
+
private boolean intersects(double ax0, double ay0, double ax1, double ay1,
double bx0, double by0, double bx1, double by1) {
-
+
double d = ((by1 - by0) * (ax1 - ax0) - (bx1 - bx0) * (ay1 - ay0));
-
+
double ua = ((bx1 - bx0) * (ay0 - by0) - (by1 - by0) * (ax0 - bx0)) / d;
double ub = ((ax1 - ax0) * (ay0 - by0) - (ay1 - ay0) * (ax0 - bx0)) / d;
-
+
return (ua >= 0) && (ua <= 1) && (ub >= 0) && (ub <= 1);
}
-
-
+
+
@Override
public Coordinate[] getFinPoints() {
return points.toArray(new Coordinate[0]);
}
-
+
@Override
public double getSpan() {
double max = 0;
}
return max;
}
-
+
@Override
public String getComponentName() {
- return "Freeform fin set";
+ //// Freeform fin set
+ return trans.get("FreeformFinSet.FreeformFinSet");
}
-
-
+
+
@Override
protected RocketComponent copyWithOriginalID() {
RocketComponent c = super.copyWithOriginalID();
((FreeformFinSet) c).points = this.points.clone();
return c;
}
-
- private void validate(ArrayList<Coordinate> points) throws IllegalFinPointException {
- final int n = points.size();
- if (points.get(0).x != 0 || points.get(0).y != 0 ||
- points.get(n - 1).x < 0 || points.get(n - 1).y != 0) {
+
+ private void validate(ArrayList<Coordinate> pts) throws IllegalFinPointException {
+ final int n = pts.size();
+ if (pts.get(0).x != 0 || pts.get(0).y != 0 ||
+ pts.get(n - 1).x < 0 || pts.get(n - 1).y != 0) {
throw new IllegalFinPointException("Start or end point illegal.");
}
for (int i = 0; i < n - 1; i++) {
for (int j = i + 2; j < n - 1; j++) {
- if (intersects(points.get(i).x, points.get(i).y, points.get(i + 1).x, points.get(i + 1).y,
- points.get(j).x, points.get(j).y, points.get(j + 1).x, points.get(j + 1).y)) {
+ if (intersects(pts.get(i).x, pts.get(i).y, pts.get(i + 1).x, pts.get(i + 1).y,
+ pts.get(j).x, pts.get(j).y, pts.get(j + 1).x, pts.get(j + 1).y)) {
throw new IllegalFinPointException("segments intersect");
}
}
- if (points.get(i).z != 0) {
+ if (pts.get(i).z != 0) {
throw new IllegalFinPointException("z-coordinate not zero");
}
}
}
-
+
}
projects / debian / openrocket / blobdiff