com.jme3.math.Quaternion.fromAngleNormalAxis()方法的使用及代码示例

x33g5p2x  于2022-01-28 转载在 其他  
字(8.3k)|赞(0)|评价(0)|浏览(83)

本文整理了Java中com.jme3.math.Quaternion.fromAngleNormalAxis方法的一些代码示例，展示了Quaternion.fromAngleNormalAxis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。Quaternion.fromAngleNormalAxis方法的具体详情如下：
包路径：com.jme3.math.Quaternion
类名称：Quaternion
方法名：fromAngleNormalAxis

Quaternion.fromAngleNormalAxis介绍

[英]fromAngleNormalAxis sets this quaternion to the values specified by an angle and a normalized axis of rotation.
[中]fromAngleNormalAxis将此四元数设置为角度和标准化旋转轴指定的值。

代码示例

代码示例来源：origin: jMonkeyEngine/jmonkeyengine

/**
 * <code>fromAngleAxis</code> sets this quaternion to the values specified
 * by an angle and an axis of rotation. This method creates an object, so
 * use fromAngleNormalAxis if your axis is already normalized.
 *
 * @param angle
 *            the angle to rotate (in radians).
 * @param axis
 *            the axis of rotation.
 * @return this quaternion
 */
public Quaternion fromAngleAxis(float angle, Vector3f axis) {
  Vector3f normAxis = axis.normalize();
  fromAngleNormalAxis(angle, normAxis);
  return this;
}

代码示例来源：origin: jMonkeyEngine/jmonkeyengine

private static Quaternion toQuat(float ax1v, Vector3f ax1, float ax2v, Vector3f ax2, float ax3v, Vector3f ax3) {
    // TODO It has some potential in optimization
    Quaternion q1 = new Quaternion().fromAngleNormalAxis(ax1v, ax1);
    Quaternion q2 = new Quaternion().fromAngleNormalAxis(ax2v, ax2);
    Quaternion q3 = new Quaternion().fromAngleNormalAxis(ax3v, ax3);
    return q1.multLocal(q2).multLocal(q3);
  }
}

代码示例来源：origin: jMonkeyEngine/jmonkeyengine

/**
 * rotate the camera around the target
 */
protected void rotateCamera() {
  verticalRotation = FastMath.clamp(verticalRotation, minVerticalRotation, maxVerticalRotation);
  TempVars vars = TempVars.get();
  Quaternion rot = vars.quat1;
  Quaternion rot2 = vars.quat2;
  rot.fromAngleNormalAxis(verticalRotation, leftVector);
  rot2.fromAngleNormalAxis(horizontalRotation, upVector);
  rot2.multLocal(rot);
  target.setLocalRotation(rot2);
  vars.release();
}

代码示例来源：origin: jMonkeyEngine/jmonkeyengine

rotation.fromAngleNormalAxis(angle, Vector3f.UNIT_Y);
floor.setLocalRotation(rotation);
sky.setLocalRotation(rotation);

代码示例来源：origin: jMonkeyEngine/jmonkeyengine

rotation = new Quaternion();
axis.normalizeLocal();
rotation.fromAngleNormalAxis(angle, axis);
angle = 0;
axis = null;

代码示例来源：origin: jMonkeyEngine/jmonkeyengine

TempVars vars = TempVars.get();
vars.vect1.set(faceNormal).normalizeLocal();
vars.quat1.fromAngleNormalAxis(p.angle, vars.vect1);
vars.quat1.multLocal(left);
vars.quat1.multLocal(up);

代码示例来源：origin: jMonkeyEngine/jmonkeyengine

/**
 * Forcefully takes over Camera adding functionality and placing it behind the character
 * @param tpf Tickes Per Frame
 */
private void camTakeOver(float tpf) {
  cam.setLocation(player.getLocalTranslation().add(-8, 2, 0));
  cam.lookAt(player.getLocalTranslation(), Vector3f.UNIT_Y);
  
  Quaternion rot = new Quaternion();
  rot.fromAngleNormalAxis(camAngle, Vector3f.UNIT_Z);
  cam.setRotation(cam.getRotation().mult(rot));
  camAngle *= FastMath.pow(.99f, fpsRate * tpf);
}

代码示例来源：origin: jMonkeyEngine/jmonkeyengine

/**
 * <code>rotateUpTo</code> is a utility function that alters the
 * local rotation to point the Y axis in the direction given by newUp.
 *
 * @param newUp
 *            the up vector to use - assumed to be a unit vector.
 */
public void rotateUpTo(Vector3f newUp) {
  TempVars vars = TempVars.get();
  Vector3f compVecA = vars.vect1;
  Quaternion q = vars.quat1;
  // First figure out the current up vector.
  Vector3f upY = compVecA.set(Vector3f.UNIT_Y);
  Quaternion rot = localTransform.getRotation();
  rot.multLocal(upY);
  // get angle between vectors
  float angle = upY.angleBetween(newUp);
  // figure out rotation axis by taking cross product
  Vector3f rotAxis = upY.crossLocal(newUp).normalizeLocal();
  // Build a rotation quat and apply current local rotation.
  q.fromAngleNormalAxis(angle, rotAxis);
  q.mult(rot, rot);
  vars.release();
  setTransformRefresh();
}

代码示例来源：origin: jMonkeyEngine/jmonkeyengine

motionControl.setRotation(new Quaternion().fromAngleNormalAxis(-FastMath.HALF_PI, Vector3f.UNIT_Y));
motionControl.setInitialDuration(10f);
motionControl.setSpeed(2f);

代码示例来源：origin: org.jmonkeyengine/jme3-core

/**
 * <code>fromAngleAxis</code> sets this quaternion to the values specified
 * by an angle and an axis of rotation. This method creates an object, so
 * use fromAngleNormalAxis if your axis is already normalized.
 *
 * @param angle
 *            the angle to rotate (in radians).
 * @param axis
 *            the axis of rotation.
 * @return this quaternion
 */
public Quaternion fromAngleAxis(float angle, Vector3f axis) {
  Vector3f normAxis = axis.normalize();
  fromAngleNormalAxis(angle, normAxis);
  return this;
}

代码示例来源：origin: info.projectkyoto/mms-engine

/**
 * <code>fromAngleAxis</code> sets this quaternion to the values specified
 * by an angle and an axis of rotation. This method creates an object, so
 * use fromAngleNormalAxis if your axis is already normalized.
 *
 * @param angle
 *            the angle to rotate (in radians).
 * @param axis
 *            the axis of rotation.
 * @return this quaternion
 */
public Quaternion fromAngleAxis(float angle, Vector3f axis) {
  Vector3f normAxis = axis.normalize();
  fromAngleNormalAxis(angle, normAxis);
  return this;
}

代码示例来源：origin: org.jmonkeyengine/jme3-plugins

private static Quaternion toQuat(float ax1v, Vector3f ax1, float ax2v, Vector3f ax2, float ax3v, Vector3f ax3) {
    // TODO It has some potential in optimization
    Quaternion q1 = new Quaternion().fromAngleNormalAxis(ax1v, ax1);
    Quaternion q2 = new Quaternion().fromAngleNormalAxis(ax2v, ax2);
    Quaternion q3 = new Quaternion().fromAngleNormalAxis(ax3v, ax3);
    return q1.multLocal(q2).multLocal(q3);
  }
}

代码示例来源：origin: org.jmonkeyengine/jme3-core

/**
 * rotate the camera around the target
 */
protected void rotateCamera() {
  verticalRotation = FastMath.clamp(verticalRotation, minVerticalRotation, maxVerticalRotation);
  TempVars vars = TempVars.get();
  Quaternion rot = vars.quat1;
  Quaternion rot2 = vars.quat2;
  rot.fromAngleNormalAxis(verticalRotation, leftVector);
  rot2.fromAngleNormalAxis(horizontalRotation, upVector);
  rot2.multLocal(rot);
  target.setLocalRotation(rot2);
  vars.release();
}

代码示例来源：origin: net.sf.phat/phat-audio

motionControl.setRotation(new Quaternion().fromAngleNormalAxis(-FastMath.HALF_PI, Vector3f.UNIT_Y));
motionControl.setInitialDuration(20f);
motionControl.setSpeed(0.1f);

代码示例来源：origin: net.sf.phat/phat-audio

motionControl.setRotation(new Quaternion().fromAngleNormalAxis(-FastMath.HALF_PI, Vector3f.UNIT_Y));
motionControl.setInitialDuration(20f);
motionControl.setSpeed(0.1f);

代码示例来源：origin: info.projectkyoto/mms-engine

/**
 * Forcefully takes over Camera adding functionality and placing it behind the character
 * @param tpf Tickes Per Frame
 */
private void camTakeOver(float tpf) {
  cam.setLocation(player.getLocalTranslation().add(-8, 2, 0));
  cam.lookAt(player.getLocalTranslation(), Vector3f.UNIT_Y);
  
  Quaternion rot = new Quaternion();
  rot.fromAngleNormalAxis(camAngle, Vector3f.UNIT_Z);
  cam.setRotation(cam.getRotation().mult(rot));
  camAngle *= FastMath.pow(.99f, fpsRate * tpf);
}

代码示例来源：origin: net.sf.phat/phat-audio

(MotionTrack.Direction.PathAndRotation);
motionControl.setRotation
  (new Quaternion().fromAngleNormalAxis
   (-FastMath.HALF_PI, Vector3f.UNIT_Y));
motionControl.setInitialDuration(20f);

代码示例来源：origin: org.jmonkeyengine/jme3-core

/**
 * <code>rotateUpTo</code> is a utility function that alters the
 * local rotation to point the Y axis in the direction given by newUp.
 *
 * @param newUp
 *            the up vector to use - assumed to be a unit vector.
 */
public void rotateUpTo(Vector3f newUp) {
  TempVars vars = TempVars.get();
  Vector3f compVecA = vars.vect1;
  Quaternion q = vars.quat1;
  // First figure out the current up vector.
  Vector3f upY = compVecA.set(Vector3f.UNIT_Y);
  Quaternion rot = localTransform.getRotation();
  rot.multLocal(upY);
  // get angle between vectors
  float angle = upY.angleBetween(newUp);
  // figure out rotation axis by taking cross product
  Vector3f rotAxis = upY.crossLocal(newUp).normalizeLocal();
  // Build a rotation quat and apply current local rotation.
  q.fromAngleNormalAxis(angle, rotAxis);
  q.mult(rot, rot);
  vars.release();
  setTransformRefresh();
}

代码示例来源：origin: info.projectkyoto/mms-engine

/**
 * <code>rotateUpTo</code> is a utility function that alters the
 * local rotation to point the Y axis in the direction given by newUp.
 *
 * @param newUp
 *            the up vector to use - assumed to be a unit vector.
 */
public void rotateUpTo(Vector3f newUp) {
  TempVars vars = TempVars.get();
  Vector3f compVecA = vars.vect1;
  Quaternion q = vars.quat1;
  // First figure out the current up vector.
  Vector3f upY = compVecA.set(Vector3f.UNIT_Y);
  Quaternion rot = localTransform.getRotation();
  rot.multLocal(upY);
  // get angle between vectors
  float angle = upY.angleBetween(newUp);
  // figure out rotation axis by taking cross product
  Vector3f rotAxis = upY.crossLocal(newUp).normalizeLocal();
  // Build a rotation quat and apply current local rotation.
  q.fromAngleNormalAxis(angle, rotAxis);
  q.mult(rot, rot);
  vars.release();
  setTransformRefresh();
}

代码示例来源：origin: info.projectkyoto/mms-engine

q = q.fromAngleNormalAxis((float) Math.PI / 8, new Vector3f(0, 0, 1));
node.skeleton = skeleton;
temp.release();

内容来源于网络，如有侵权，请联系作者删除！

Quaternion

相关文章

    查看更多
    微信公众号

    热门标签

    更多
    JavaquerypythonNode开发语言requestUtil数据库Table后端算法LoggerMessageElementParser

    最新文章

    更多
    • 蜀ICP备13028337号-1 大数据知识库 https://www.saoniuhuo.com © All rights reserved
    • 本站内容来源互联网,如果侵犯您的权益请联系我们删除, 联系方式：448109455@qq.com