PenSample.java

package edu.stanford.hci.r3.pen;

import java.io.Serializable;
import java.text.DecimalFormat;
import java.util.Date;

import edu.stanford.hci.r3.units.PatternDots;
import edu.stanford.hci.r3.util.MathUtils;

public class PenSample implements Serializable {

        private static final DecimalFormat FORMATTER = PatternDots.FORMATTER;

        public int force;

        public boolean penUp;

        public long timestamp;

        public double x;

        public double y;

        public PenSample(double xVal, double yVal, int f, long ts) {
                this(xVal, yVal, f, ts, false /* pen is down */);
        }

        public PenSample(double theX, double theY, int theForce, long theTimestamp, boolean isPenUp) {
                timestamp = theTimestamp;
                x = theX;
                y = theY;
                force = theForce;
                penUp = isPenUp;
        }

        public double getDistanceFrom(PenSample otherSample) {
                return MathUtils.distance(x, y, otherSample.x, otherSample.y);
        }

        public int getForce() {
                return force;
        }

        public Date getTime() {
                return new Date(timestamp);
        }

        public long getTimestamp() {
                return timestamp;
        }

        public double getX() {
                return x;
        }

        public double getY() {
                return y;
        }

        public boolean isPenUp() {
                return penUp;
        }

        public void setForce(int f) {
                force = f;
        }

        public void setPenUp(boolean b) {
                penUp = b;
        }

        public void setTimestamp(long t) {
                timestamp = t;
        }

        public void setX(double xVal) {
                x = xVal;
        }

        public void setY(double yVal) {
                y = yVal;
        }

        public String toCommaSeparatedString() {
                final DecimalFormat df = new DecimalFormat("#.####");
                final String xString = df.format(x);
                final String yString = df.format(y);
                return "" + timestamp + "," + xString + "," + yString + "," + force + ","
                                + (isPenUp() ? "UP" : "DOWN");
        }

        public String toString() {
                return "Sample: [" + FORMATTER.format(x) + ", " + FORMATTER.format(y) + "] F=" + force + " T="
                                + timestamp + " P=" + (isPenUp() ? "UP" : "DOWN");
        }

        public String toXMLString() {
                return "<p x=\"" + x + "\" y=\"" + y + "\" f=\"" + force + "\" t=\"" + timestamp + "\" p=\""
                                + (isPenUp() ? "U" : "D") + "\"/>";
        }
}

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