本文整理了Java中java.lang.Math.hypot()方法的一些代码示例，展示了Math.hypot()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Math.hypot()方法的具体详情如下：
包路径：java.lang.Math
类名称：Math
方法名：hypot
[英]Returns sqrt(x 2 + y 2 ). The final result is without medium underflow or overflow. The returned result is within 1 ulp (unit in the last place) of the real result. If one parameter remains constant, the result should be semi-monotonic.
Special cases:
代码示例来源：origin: PhilJay/MPAndroidChart
/**
* Calculates the distance between the two given points.
*
* @param x1
* @param y1
* @param x2
* @param y2
* @return
*/
protected float getDistance(float x1, float y1, float x2, float y2) {
//return Math.abs(y1 - y2);
//return Math.abs(x1 - x2);
return (float) Math.hypot(x1 - x2, y1 - y2);
}代码示例来源：origin: kevin-wayne/algs4
/**
* Returns the absolute value of this complex number.
* This quantity is also known as the <em>modulus</em> or <em>magnitude</em>.
*
* @return the absolute value of this complex number
*/
public double abs() {
return Math.hypot(re, im);
}代码示例来源：origin: andkulikov/Transitions-Everywhere
private static double distance(float x1, float y1, float x2, float y2) {
double x = x2 - x1;
double y = y2 - y1;
return Math.hypot(x, y);
}
}代码示例来源：origin: ZieIony/Carbon
public static float dist(float x1, float y1, float x2, float y2) {
final float x = (x2 - x1);
final float y = (y2 - y1);
return (float) Math.hypot(x, y);
}代码示例来源：origin: apache/nifi
/**
* @return distance from a (0, 0) point.
*/
public int distance() {
// a simplified distance formula because the other coord is (0, 0)
return (int) Math.hypot(x, y);
}代码示例来源：origin: ZieIony/Carbon
public static float mag(float a, float b) {
return (float) Math.hypot(a, b);
}代码示例来源：origin: airbnb/lottie-android
public static float getScale(Matrix matrix) {
points[0] = 0;
points[1] = 0;
// Use sqrt(2) so that the hypotenuse is of length 1.
points[2] = SQRT_2;
points[3] = SQRT_2;
matrix.mapPoints(points);
float dx = points[2] - points[0];
float dy = points[3] - points[1];
// TODO: figure out why the result needs to be divided by 2.
return (float) Math.hypot(dx, dy) / 2f;
}代码示例来源：origin: square/okio
/**
* Returns a bitmap that lights up red subpixels at the bottom, green subpixels on the right, and
* blue subpixels in bottom-right.
*/
Bitmap generateGradient() {
int[][] pixels = new int[1080][1920];
for (int y = 0; y < 1080; y++) {
for (int x = 0; x < 1920; x++) {
int r = (int) (y / 1080f * 255);
int g = (int) (x / 1920f * 255);
int b = (int) ((Math.hypot(x, y) / Math.hypot(1080, 1920)) * 255);
pixels[y][x] = r << 16 | g << 8 | b;
}
}
return new Bitmap(pixels);
}代码示例来源：origin: apache/incubator-druid
@Override
protected ExprEval eval(double x, double y)
{
return ExprEval.of(Math.hypot(x, y));
}
}代码示例来源：origin: andkulikov/Transitions-Everywhere
private static double calculateMaxDistance(View sceneRoot, int focalX, int focalY) {
int maxX = Math.max(focalX, sceneRoot.getWidth() - focalX);
int maxY = Math.max(focalY, sceneRoot.getHeight() - focalY);
return Math.hypot(maxX, maxY);
}代码示例来源：origin: robolectric/robolectric
@Implementation
protected float mapRadius(float radius) {
float[] src = new float[] {radius, 0.f, 0.f, radius};
mapVectors(src, 0, src, 0, 2);
float l1 = (float) Math.hypot(src[0], src[1]);
float l2 = (float) Math.hypot(src[2], src[3]);
return (float) Math.sqrt(l1 * l2);
}代码示例来源：origin: andkulikov/Transitions-Everywhere
@Override
@NonNull
public Path getPath(float startX, float startY, float endX, float endY) {
double dx = endX - startX;
double dy = endY - startY;
float length = (float) Math.hypot(dx, dy);
double angle = Math.atan2(dy, dx);
mTempMatrix.setScale(length, length);
mTempMatrix.postRotate((float) Math.toDegrees(angle));
mTempMatrix.postTranslate(startX, startY);
Path path = new Path();
mPatternPath.transform(mTempMatrix, path);
return path;
}代码示例来源：origin: hitherejoe/animate
@TargetApi(Build.VERSION_CODES.LOLLIPOP)
private void prepareCircularReveal(View startView, View targetView) {
int centerX = (startView.getLeft() + startView.getRight()) / 2;
int centerY = (startView.getTop() + startView.getBottom()) / 2;
float finalRadius = (float) Math.hypot((double) centerX, (double) centerY);
mCircularReveal = ViewAnimationUtils.createCircularReveal(
targetView, centerX, centerY, 0, finalRadius);
mCircularReveal.addListener(new AnimatorListenerAdapter() {
@Override
public void onAnimationEnd(Animator animation) {
mCircularReveal.removeListener(this);
}
});
}
}代码示例来源：origin: nickbutcher/plaid
/**
* Calculate the duration for the transition depending upon how far the text has to move.
*/
private long calculateDuration(@NonNull Rect startPosition, @NonNull Rect endPosition) {
float distance = (float) Math.hypot(
startPosition.exactCenterX() - endPosition.exactCenterX(),
startPosition.exactCenterY() - endPosition.exactCenterY());
long duration = (long) (1000 * (distance / velocity));
return Math.max(minDuration, Math.min(maxDuration, duration));
}代码示例来源：origin: bluelinelabs/Conductor
@Override @NonNull
protected Animator getAnimator(@NonNull ViewGroup container, View from, View to, boolean isPush, boolean toAddedToContainer) {
final float radius = (float) Math.hypot(cx, cy);
Animator animator = null;
if (isPush && to != null) {
animator = ViewAnimationUtils.createCircularReveal(to, cx, cy, 0, radius);
} else if (!isPush && from != null) {
animator = ViewAnimationUtils.createCircularReveal(from, cx, cy, radius, 0);
}
return animator;
}代码示例来源：origin: seven332/EhViewer
private boolean createCircularReveal() {
if (mColorBg == null) {
return false;
}
int w = mColorBg.getWidth();
int h = mColorBg.getHeight();
if (ViewCompat.isAttachedToWindow(mColorBg) && w != 0 && h != 0) {
ViewAnimationUtils.createCircularReveal(mColorBg, w / 2, h / 2, 0,
(float) Math.hypot(w / 2, h / 2)).setDuration(300).start();
return true;
} else {
return false;
}
}代码示例来源：origin: airbnb/lottie-android
private RadialGradient getRadialGradient() {
int gradientHash = getGradientHash();
RadialGradient gradient = radialGradientCache.get(gradientHash);
if (gradient != null) {
return gradient;
}
PointF startPoint = startPointAnimation.getValue();
PointF endPoint = endPointAnimation.getValue();
GradientColor gradientColor = colorAnimation.getValue();
int[] colors = gradientColor.getColors();
float[] positions = gradientColor.getPositions();
int x0 = (int) (boundsRect.left + boundsRect.width() / 2 + startPoint.x);
int y0 = (int) (boundsRect.top + boundsRect.height() / 2 + startPoint.y);
int x1 = (int) (boundsRect.left + boundsRect.width() / 2 + endPoint.x);
int y1 = (int) (boundsRect.top + boundsRect.height() / 2 + endPoint.y);
float r = (float) Math.hypot(x1 - x0, y1 - y0);
gradient = new RadialGradient(x0, y0, r, colors, positions, Shader.TileMode.CLAMP);
radialGradientCache.put(gradientHash, gradient);
return gradient;
}代码示例来源：origin: runelite/runelite
/**
* Gets the distance between this point and another.
*
* @param other other point
* @return the distance
*/
public int distanceTo(LocalPoint other)
{
return (int) Math.hypot(getX() - other.getX(), getY() - other.getY());
}代码示例来源：origin: runelite/runelite
/**
* Gets the distance between this point and another.
*
* @param other other point
* @return the distance
*/
public int distanceTo(Point other)
{
return (int) Math.hypot(getX() - other.getX(), getY() - other.getY());
}代码示例来源：origin: airbnb/lottie-android
private RadialGradient getRadialGradient() {
int gradientHash = getGradientHash();
RadialGradient gradient = radialGradientCache.get(gradientHash);
if (gradient != null) {
return gradient;
}
PointF startPoint = startPointAnimation.getValue();
PointF endPoint = endPointAnimation.getValue();
GradientColor gradientColor = colorAnimation.getValue();
int[] colors = gradientColor.getColors();
float[] positions = gradientColor.getPositions();
float x0 = startPoint.x;
float y0 = startPoint.y;
float x1 = endPoint.x;
float y1 = endPoint.y;
float r = (float) Math.hypot(x1 - x0, y1 - y0);
if (r <= 0) {
r = 0.001f;
}
gradient = new RadialGradient(x0, y0, r, colors, positions, Shader.TileMode.CLAMP);
radialGradientCache.put(gradientHash, gradient);
return gradient;
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