public class

PreviewCorrectionTransformation

extends Transformation

 java.lang.Object

androidx.camera.view.preview.transform.transformation.Transformation

↳androidx.camera.view.preview.transform.transformation.PreviewCorrectionTransformation

Overview

A Transformation used to correct the camera preview. It only allows setting the scale on the x and y axes and the rotation, since these are the operations involved when correcting the preview.

Summary

Constructors
publicPreviewCorrectionTransformation(float scaleX, float scaleY, float rotation)

Creates a Transformation that corrects the preview.

Methods
from Transformationadd, getRotation, getScaleX, getScaleY, getTransformation, getTransX, getTransY, subtract
from java.lang.Objectclone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructors

public PreviewCorrectionTransformation(float scaleX, float scaleY, float rotation)

Creates a Transformation that corrects the preview. It doesn't translate the preview, keeping it at its initial position of (0, 0).

Source

/*
 * Copyright 2020 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package androidx.camera.view.preview.transform.transformation;


import androidx.annotation.RestrictTo;

/**
 * A {@link Transformation} used to correct the camera preview.
 *
 * It only allows setting the scale on the x and y axes and the rotation, since these are the
 * operations involved when correcting the preview.
 *
 * @hide
 */
@RestrictTo(RestrictTo.Scope.LIBRARY)
public class PreviewCorrectionTransformation extends Transformation {

    /**
     * Creates a {@link Transformation} that corrects the preview. It doesn't translate the
     * preview, keeping it at its initial position of (0, 0).
     */
    public PreviewCorrectionTransformation(float scaleX, float scaleY, float rotation) {
        super(scaleX, scaleY, 0, 0, rotation);
    }
}