本文整理汇总了Java中com.jme3.math.FastMath.tan方法的典型用法代码示例。如果您正苦于以下问题：Java FastMath.tan方法的具体用法？Java FastMath.tan怎么用？Java FastMath.tan使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类com.jme3.math.FastMath的用法示例。
在下文中一共展示了FastMath.tan方法的9个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: setFrustumPerspective
import com.jme3.math.FastMath; //导入方法依赖的package包/类
/**
* <code>setFrustumPerspective</code> defines the frustum for the camera. This
* frustum is defined by a viewing angle, aspect ratio, and near/far planes
*
* @param fovY Frame of view angle along the Y in degrees.
* @param aspect Width:Height ratio
* @param near Near view plane distance
* @param far Far view plane distance
*/
public void setFrustumPerspective(float fovY, float aspect, float near,
float far) {
if (Float.isNaN(aspect) || Float.isInfinite(aspect)) {
// ignore.
logger.log(Level.WARNING, "Invalid aspect given to setFrustumPerspective: {0}", aspect);
return;
}
float h = FastMath.tan(fovY * FastMath.DEG_TO_RAD * .5f) * near;
float w = h * aspect;
frustumLeft = -w;
frustumRight = w;
frustumBottom = -h;
frustumTop = h;
frustumNear = near;
frustumFar = far;
onFrustumChange();
}
示例2: zoomCamera
import com.jme3.math.FastMath; //导入方法依赖的package包/类
protected void zoomCamera(float value){
// derive fovY value
float h = cam.getFrustumTop();
float w = cam.getFrustumRight();
float aspect = w / h;
float near = cam.getFrustumNear();
float fovY = FastMath.atan(h / near)
/ (FastMath.DEG_TO_RAD * .5f);
fovY += value * 0.1f;
h = FastMath.tan( fovY * FastMath.DEG_TO_RAD * .5f) * near;
w = h * aspect;
cam.setFrustumTop(h);
cam.setFrustumBottom(-h);
cam.setFrustumLeft(-w);
cam.setFrustumRight(w);
}
示例3: doZoomCamera
import com.jme3.math.FastMath; //导入方法依赖的package包/类
protected void doZoomCamera(float amount) {
amount = cam.getLocation().distance(focus) * amount;
float dist = cam.getLocation().distance(focus);
amount = dist - Math.max(0f, dist - amount);
Vector3f loc = cam.getLocation().clone();
loc.scaleAdd(amount, cam.getDirection(), loc);
cam.setLocation(loc);
if (cam.isParallelProjection()) {
float aspect = (float) cam.getWidth() / cam.getHeight();
float h = FastMath.tan(45f * FastMath.DEG_TO_RAD * .5f) * dist;
float w = h * aspect;
cam.setFrustum(-1000, 1000, -w, w, h, -h);
}
}
示例4: doToggleOrthoPerspMode
import com.jme3.math.FastMath; //导入方法依赖的package包/类
protected boolean doToggleOrthoPerspMode() {
float aspect = (float) cam.getWidth() / cam.getHeight();
if (!cam.isParallelProjection()) {
cam.setParallelProjection(true);
float h = cam.getFrustumTop();
float w;
float dist = cam.getLocation().distance(focus);
float fovY = FastMath.atan(h) / (FastMath.DEG_TO_RAD * .5f);
h = FastMath.tan(fovY * FastMath.DEG_TO_RAD * .5f) * dist;
w = h * aspect;
cam.setFrustum(-1000, 1000, -w, w, h, -h);
return true;
} else {
cam.setParallelProjection(false);
cam.setFrustumPerspective(45f, aspect, 1, 1000);
return false;
}
}
示例5: doZoomCamera
import com.jme3.math.FastMath; //导入方法依赖的package包/类
public void doZoomCamera(float amount) {
amount = amount * 0.1f;
amount = cam.getLocation().distance(focus) * amount;
float dist = cam.getLocation().distance(focus);
amount = dist - Math.max(0f, dist - amount);
// 一个最小距离用于防止拉到0距离后缩放不回来的BUG
if (amount >= dist) {
amount -= minDistance;
}
Vector3f loc = cam.getLocation().clone();
loc.scaleAdd(amount, cam.getDirection(), loc);
cam.setLocation(loc);
if (cam.isParallelProjection()) {
float aspect = (float) cam.getWidth() / cam.getHeight();
float h = FastMath.tan(45f * FastMath.DEG_TO_RAD * .5f) * dist;
float w = h * aspect;
cam.setFrustum(orthoNear, orthoFar, -w, w, h, -h);
}
// LOG.log(Level.INFO, "doZoomCamera, Camera location={0}", cam.getLocation());
}
示例6: doToggleOrthoPerspMode
import com.jme3.math.FastMath; //导入方法依赖的package包/类
public boolean doToggleOrthoPerspMode() {
float aspect = (float) cam.getWidth() / cam.getHeight();
if (!cam.isParallelProjection()) {
cam.setParallelProjection(true);
float h = cam.getFrustumTop();
float w;
float dist = cam.getLocation().distance(focus);
float fovY = FastMath.atan(h) / (FastMath.DEG_TO_RAD * .5f);
h = FastMath.tan(fovY * FastMath.DEG_TO_RAD * .5f) * dist;
w = h * aspect;
cam.setFrustum(orthoNear, orthoFar, -w, w, h, -h);
return true;
} else {
cam.setParallelProjection(false);
cam.setFrustumPerspective(45f, aspect, perspNear, perspFar);
return false;
}
}
示例7: doOrthoMode
import com.jme3.math.FastMath; //导入方法依赖的package包/类
public void doOrthoMode() {
if (!cam.isParallelProjection()) {
float aspect = (float) cam.getWidth() / cam.getHeight();
cam.setParallelProjection(true);
float h = cam.getFrustumTop();
float w;
float dist = cam.getLocation().distance(focus);
float fovY = FastMath.atan(h) / (FastMath.DEG_TO_RAD * .5f);
h = FastMath.tan(fovY * FastMath.DEG_TO_RAD * .5f) * dist;
w = h * aspect;
cam.setFrustum(orthoNear, orthoFar, -w, w, h, -h);
}
}
示例8: oppositeSide
import com.jme3.math.FastMath; //导入方法依赖的package包/类
private static float oppositeSide(float angle, float adjacent) {
// tan(angle) = opposite / adjacent
return FastMath.tan(angle) * adjacent;
}
示例9: update
import com.jme3.math.FastMath; //导入方法依赖的package包/类
@Override
public void update(float tpf) {
if (!enabled) {
return;
}
super.update(tpf);
if (velocity > 0 && holding.size() > 0) {
release();
}
if (holding.size() > 0) {
velocity = 0;
return;
}
// check holding objects
float maxDiff = opening * FastMath.tan(FastMath.QUARTER_PI / 4);
for (Entry<Float, Spatial> e1 : leftContacts.entrySet()) {
for (Entry<Float, Spatial> e2 : rightContacts.entrySet()) {
if (e1.getValue() != e2.getValue()) {
continue;
}
if (FastMath.abs(e1.getKey() - e2.getKey()) > maxDiff) {
continue;
}
Spatial s = e1.getValue();
if (holding.contains(s)) {
continue;
}
MyRigidBodyControl rbc = s.getControl(MyRigidBodyControl.class);
if (rbc == null || rbc.getMass() == 0 || rbc.isKinematic()) {
continue;
}
hold(s);
logger.log(Level.INFO, "hold");
}
}
if ((leftContacts.size() > 0 || rightContacts.size() > 0) && holding.size() <= 0) {
logger.log(Level.INFO, "cannot hold: {0}", maxDiff);
}
leftContacts.clear();
rightContacts.clear();
if (velocity != 0) {
if (velocity < 0) {
float impulse = -velocity * tpf * FINGER_MASS * 2;
impulse -= fingerPressure;
float offset = impulse / (FINGER_MASS * 2);
offset = FastMath.clamp(offset, 0, offset);
opening -= offset;
checkDigitCollision = true;
} else {
opening += velocity * tpf;
checkDigitCollision = false;
}
opening = FastMath.clamp(opening, 0, Gripper.MAX_OPENING);
// update finger opeining
Vector3f v = leftFinger.getLocalTranslation();
v.x = -opening / 2 - Gripper.FINGER_SIZE.x / 2;
leftFinger.setLocalTranslation(v);
v = rightFinger.getLocalTranslation();
v.x = opening / 2 + Gripper.FINGER_SIZE.x / 2;
rightFinger.setLocalTranslation(v);
fingerPressure = 0;
velocity = 0;
} else {
checkDigitCollision = false;
}
}