Example usage for java.lang Float max

Introduction

In this page you can find the example usage for java.lang Float max.

Prototype

public static float max(float a, float b) 

Source Link

Document

Returns the greater of two float values as if by calling Math#max(float,float) Math.max .

Usage

From source file:fr.amap.viewer3d.object.camera.TrackballCamera.java

/**
 *
 * @param translation translation vector of camera
 *///from   w  w w  .ja va 2 s.  c om
@Override
public void translate(Vec3F translation) {

    float copyDistanceToTarget = getDistanceToTarget();

    forwardVec = getForwardVector();

    forwardVec = Vec3F.normalize(forwardVec);

    if (translation.x != 0.0f) {

        Vec3F sideShift = Vec3F.normalize(Vec3F.cross(up, forwardVec));
        location = Vec3F.add(location, Vec3F.multiply(sideShift, translation.x));
        //target = Vec3F.add(target, Vec3F.multiply(sideShift, translation.x));
    }
    if (translation.y != 0.0f) {

        Vec3F verticalShift = up;
        location = Vec3F.add(location, Vec3F.multiply(verticalShift, translation.y));
        //target = Vec3F.add(target, Vec3F.multiply(verticalShift, translation.y));
    }
    if (translation.z != 0.0f) {

        if (perspective) {
            //target = Vec3F.add(target, Vec3F.multiply(orientation, translation.z)); //use for not reaching the target
            //setPerspective(70.0f, (1.0f*640)/480, near-translation.z, far-translation.z);
        } else {

            if ((left < -1.0f && right > 1.0f) || translation.z < 0) {

                float widthCoeff = viewportWidth / 100.0f;
                float heightCoeff = viewportHeight / 100.0f;

                float leftCopy = left;
                float rightCopy = right;
                float topCopy = top;
                float bottomCopy = bottom;

                left = left + translation.z * (widthCoeff);

                right = right - translation.z * (widthCoeff);

                bottom = bottom + translation.z * (heightCoeff);

                top = top - translation.z * (heightCoeff);

                if (left > -1 || right < 1 || bottom > -1 || top < 1) {
                    left = leftCopy;
                    right = rightCopy;
                    bottom = bottomCopy;
                    top = topCopy;
                }
            }

            //updateProjMatrix();
        }

        //copy old location
        Vec3F oldForwardVector = getForwardVector();
        Vec3F oldLocation = location;

        //test translation effect
        location = Vec3F.add(location, Vec3F.multiply(forwardVec, translation.z));
        Vec3F newForwardVector = getForwardVector();

        //if translation is not good, get back to the original location (equivalent to not move)
        if ((newForwardVector.z < 0 && oldForwardVector.z > 0)
                || (newForwardVector.z > 0 && oldForwardVector.z < 0)) {
            location = oldLocation;
        }

    }

    updateViewMatrix();

    float distanceToTarget = getDistanceToTarget();

    nearPersp = distanceToTarget - 500.0f;
    nearPersp = Float.max(nearPersp, 0.01f);

    farPersp = distanceToTarget + 500.0f;

    //nearOrtho = nearPersp;
    //farOrtho = farPersp;

    updateProjMatrix();
}

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