package net.sf.openrocket.rocketcomponent;
-import net.sf.openrocket.util.Coordinate;
-import net.sf.openrocket.util.MathUtil;
+import static net.sf.openrocket.util.MathUtil.pow2;
import java.util.ArrayList;
import java.util.Collection;
-import static net.sf.openrocket.util.MathUtil.pow2;
+import net.sf.openrocket.util.Coordinate;
+import net.sf.openrocket.util.MathUtil;
/**
* @author Sampo Niskanen <sampo.niskanen@iki.fi>
*/
public abstract class MassObject extends InternalComponent {
-
- private double radius;
-
- private double radialPosition;
- private double radialDirection;
-
- private double shiftY = 0;
- private double shiftZ = 0;
-
-
- public MassObject () {
- this(0.03, 0.015);
- }
-
- public MassObject (double length, double radius) {
- super();
-
- this.length = length;
- this.radius = radius;
-
- this.setRelativePosition(Position.TOP);
- this.setPositionValue(0.0);
- }
-
-
- public void setLength (double length) {
- length = Math.max(length, 0);
- if (MathUtil.equals(this.length, length)) {
- return;
- }
- this.length = length;
- fireComponentChangeEvent(ComponentChangeEvent.MASS_CHANGE);
- }
-
-
- public final double getRadius () {
- return radius;
- }
-
-
- public final void setRadius (double radius) {
- radius = Math.max(radius, 0);
- if (MathUtil.equals(this.radius, radius)) {
- return;
- }
- this.radius = radius;
- fireComponentChangeEvent(ComponentChangeEvent.MASS_CHANGE);
- }
-
-
- public final double getRadialPosition () {
- return radialPosition;
- }
-
- public final void setRadialPosition (double radialPosition) {
- radialPosition = Math.max(radialPosition, 0);
- if (MathUtil.equals(this.radialPosition, radialPosition)) {
- return;
- }
- this.radialPosition = radialPosition;
- shiftY = radialPosition * Math.cos(radialDirection);
- shiftZ = radialPosition * Math.sin(radialDirection);
- fireComponentChangeEvent(ComponentChangeEvent.MASS_CHANGE);
- }
-
- public final double getRadialDirection () {
- return radialDirection;
- }
-
- public final void setRadialDirection (double radialDirection) {
- radialDirection = MathUtil.reduce180(radialDirection);
- if (MathUtil.equals(this.radialDirection, radialDirection)) {
- return;
- }
- this.radialDirection = radialDirection;
- shiftY = radialPosition * Math.cos(radialDirection);
- shiftZ = radialPosition * Math.sin(radialDirection);
- fireComponentChangeEvent(ComponentChangeEvent.MASS_CHANGE);
- }
-
-
- /**
- * Shift the coordinates according to the radial position and direction.
- */
- @Override
- public final Coordinate[] shiftCoordinates (Coordinate[] array) {
- for (int i = 0; i < array.length; i++) {
- array[i] = array[i].add(0, shiftY, shiftZ);
- }
- return array;
- }
-
- @Override
- public final Coordinate getComponentCG () {
- return new Coordinate(length / 2, shiftY, shiftZ, getComponentMass());
- }
-
- @Override
- public final double getLongitudalUnitInertia () {
- return (3 * pow2(radius) + pow2(length)) / 12;
- }
-
- @Override
- public final double getRotationalUnitInertia () {
- return pow2(radius) / 2;
- }
-
- @Override
- public final Collection<Coordinate> getComponentBounds () {
- Collection<Coordinate> c = new ArrayList<Coordinate>();
- addBound(c, 0, radius);
- addBound(c, length, radius);
- return c;
- }
-
- /**
- * Accept a visitor to this MassObject in the component hierarchy.
- *
- * @param theVisitor the visitor that will be called back with a reference to this MassObject
- */
- @Override
- public void accept (final ComponentVisitor theVisitor) {
- theVisitor.visit(this);
- }
-
+
+ private double radius;
+
+ private double radialPosition;
+ private double radialDirection;
+
+ private double shiftY = 0;
+ private double shiftZ = 0;
+
+
+ public MassObject() {
+ this(0.03, 0.015);
+ }
+
+ public MassObject(double length, double radius) {
+ super();
+
+ this.length = length;
+ this.radius = radius;
+
+ this.setRelativePosition(Position.TOP);
+ this.setPositionValue(0.0);
+ }
+
+
+ public void setLength(double length) {
+ length = Math.max(length, 0);
+ if (MathUtil.equals(this.length, length)) {
+ return;
+ }
+ this.length = length;
+ fireComponentChangeEvent(ComponentChangeEvent.MASS_CHANGE);
+ }
+
+
+ public final double getRadius() {
+ return radius;
+ }
+
+
+ public final void setRadius(double radius) {
+ radius = Math.max(radius, 0);
+ if (MathUtil.equals(this.radius, radius)) {
+ return;
+ }
+ this.radius = radius;
+ fireComponentChangeEvent(ComponentChangeEvent.MASS_CHANGE);
+ }
+
+
+
+ public final double getRadialPosition() {
+ return radialPosition;
+ }
+
+ public final void setRadialPosition(double radialPosition) {
+ radialPosition = Math.max(radialPosition, 0);
+ if (MathUtil.equals(this.radialPosition, radialPosition)) {
+ return;
+ }
+ this.radialPosition = radialPosition;
+ shiftY = radialPosition * Math.cos(radialDirection);
+ shiftZ = radialPosition * Math.sin(radialDirection);
+ fireComponentChangeEvent(ComponentChangeEvent.MASS_CHANGE);
+ }
+
+ public final double getRadialDirection() {
+ return radialDirection;
+ }
+
+ public final void setRadialDirection(double radialDirection) {
+ radialDirection = MathUtil.reduce180(radialDirection);
+ if (MathUtil.equals(this.radialDirection, radialDirection)) {
+ return;
+ }
+ this.radialDirection = radialDirection;
+ shiftY = radialPosition * Math.cos(radialDirection);
+ shiftZ = radialPosition * Math.sin(radialDirection);
+ fireComponentChangeEvent(ComponentChangeEvent.MASS_CHANGE);
+ }
+
+
+ /**
+ * Shift the coordinates according to the radial position and direction.
+ */
+ @Override
+ public final Coordinate[] shiftCoordinates(Coordinate[] array) {
+ for (int i = 0; i < array.length; i++) {
+ array[i] = array[i].add(0, shiftY, shiftZ);
+ }
+ return array;
+ }
+
+ @Override
+ public final Coordinate getComponentCG() {
+ return new Coordinate(length / 2, shiftY, shiftZ, getComponentMass());
+ }
+
+ @Override
+ public final double getLongitudinalUnitInertia() {
+ return (3 * pow2(radius) + pow2(length)) / 12;
+ }
+
+ @Override
+ public final double getRotationalUnitInertia() {
+ return pow2(radius) / 2;
+ }
+
+ @Override
+ public final Collection<Coordinate> getComponentBounds() {
+ Collection<Coordinate> c = new ArrayList<Coordinate>();
+ addBound(c, 0, radius);
+ addBound(c, length, radius);
+ return c;
+ }
+
+ /**
+ * Accept a visitor to this MassObject in the component hierarchy.
+ *
+ * @param theVisitor the visitor that will be called back with a reference to this MassObject
+ */
+ @Override
+ public void accept(final ComponentVisitor theVisitor) {
+ theVisitor.visit(this);
+ }
+
}
projects / debian / openrocket / blobdiff