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java Programming Glossary: math.atan2Java 2d rotation in direction mouse point http://stackoverflow.com/questions/11911316/java-2d-rotation-in-direction-mouse-point int centerX width 2 int centerY height 2 double angle Math.atan2 centerY mouseY centerX mouseX Math.PI 2 Graphics2D g .rotate..
Java make a directed line and make it move http://stackoverflow.com/questions/15607427/java-make-a-directed-line-and-make-it-move endX endY g2d.draw line tx.setToIdentity double angle Math.atan2 line.y2 line.y1 line.x2 line.x1 tx.translate line.x2 line.y2.. deltaX mousePoint.x x int deltaY mousePoint.y y rotation Math.atan2 deltaX deltaY rotation Math.toDegrees rotation 180 Rectangle.. int deltaX mouseEnd.x x int deltaY mouseEnd.y y rotation Math.atan2 deltaX deltaY rotation Math.toDegrees rotation 180 Rectangle..
Calculating the angle between two lines without having to calculate the slope? (Java) http://stackoverflow.com/questions/3365171/calculating-the-angle-between-two-lines-without-having-to-calculate-the-slope Line2D line1 Line2D line2 double angle1 Math.atan2 line1.getY1 line1.getY2 line1.getX1 line1.getX2 double angle2.. line1.getY2 line1.getX1 line1.getX2 double angle2 Math.atan2 line2.getY1 line2.getY2 line2.getX1 line2.getX2 return angle1..
Java - Draw a ruler (line with tick marks at 90 degree angle) http://stackoverflow.com/questions/3488419/java-draw-a-ruler-line-with-tick-marks-at-90-degree-angle from left to right Figure out the desired angle using Math.atan2 . Apply an AffineTransform with translation and rotation before.. x1 y1 at.concatenate AffineTransform.getRotateInstance Math.atan2 dy dx g.transform at Draw horizontal ruler starting in 0 0..
Android - SQlite Getting nearest locations (with latitude and longitude) http://stackoverflow.com/questions/3695224/android-sqlite-getting-nearest-locations-with-latitude-and-longitude Math.sin angularDistance Math.cos trueCourse double dlon Math.atan2 Math.sin trueCourse Math.sin angularDistance Math.cos latA.. 2 Math.sin dLon 2 Math.cos lat1 Math.cos lat2 double c 2 Math.atan2 Math.sqrt a Math.sqrt 1 a double d R c return d Enjoy I used..
Drawing a line with arrow in Java http://stackoverflow.com/questions/4112701/drawing-a-line-with-arrow-in-java g1.create double dx x2 x1 dy y2 y1 double angle Math.atan2 dy dx int len int Math.sqrt dx dx dy dy AffineTransform at..
midpoint between two latitude and longitude http://stackoverflow.com/questions/4656802/midpoint-between-two-latitude-and-longitude dLon double By Math.cos lat2 Math.sin dLon double lat3 Math.atan2 Math.sin lat1 Math.sin lat2 Math.sqrt Math.cos lat1 Bx Math.cos.. Math.cos lat1 Bx Math.cos lat1 Bx By By double lon3 lon1 Math.atan2 By Math.cos lat1 Bx System.out.print lat3 lon3 I am not sure.. dLon double By Math.cos lat2 Math.sin dLon double lat3 Math.atan2 Math.sin lat1 Math.sin lat2 Math.sqrt Math.cos lat1 Bx Math.cos..
How to find the distance between two ZipCodes using Java Code? http://stackoverflow.com/questions/7426710/how-to-find-the-distance-between-two-zipcodes-using-java-code lat2 Math.sin dLon 2 Math.sin dLon 2 double c 2 Math.atan2 Math.sqrt a Math.sqrt 1 a double d r c return d I hereby donate..
Calculate distance in meters when you know longitude and latitude in java [duplicate] http://stackoverflow.com/questions/837872/calculate-distance-in-meters-when-you-know-longitude-and-latitude-in-java lat2 Math.sin dLng 2 Math.sin dLng 2 double c 2 Math.atan2 Math.sqrt a Math.sqrt 1 a double dist earthRadius c int meterConversion..
Find angle of a point from center of circle http://stackoverflow.com/questions/8968500/find-angle-of-a-point-from-center-of-circle this question May be clearer this way Math.toDegrees Math.atan2 fromLeft 360.0 360.0 fromTop 360.0 360.0 Adding a 360 degree..
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