f070e018e143ff5a64dc9dfb9d1ada6cf6157976,src/org/opensourcephysics/cabrillo/tracker/CalibrationStep.java,CalibrationStep,setWorldCoordinates,#number#number#number#number#,195
Before Change
*/
public boolean setWorldCoordinates(double x1, double y1, double x2, double y2) {
TTrack track = getTrack();
if (track.isLocked()) return false;
// points can't share the same world position
boolean sameX = x2==x1;
boolean sameY = y2==y1;
After Change
*/
public boolean setWorldCoordinates(double x1, double y1, double x2, double y2) {
TTrack track = getTrack();
if (track==null || track.isLocked()) return false;
// points can't share the same world position
boolean sameX = x2==x1;
boolean sameY = y2==y1;