Example usage for android.graphics Matrix Matrix

Introduction

In this page you can find the example usage for android.graphics Matrix Matrix.

Prototype

public Matrix()

Source Link

Document

Create an identity matrix

Usage

From source file:Main.java

public static Bitmap rotate(@NonNull final Bitmap bitmap, final float angle) {
    final Matrix matrix = new Matrix();
    matrix.postRotate(angle);//from  w  ww. j  a  v  a 2  s  .c o  m
    return Bitmap.createBitmap(bitmap, 0, 0, bitmap.getWidth(), bitmap.getHeight(), matrix, true);
}

From source file:Main.java

public static Bitmap rotate(Bitmap bitmap, int degree) {
    int w = bitmap.getWidth();
    int h = bitmap.getHeight();
    Matrix mtx = new Matrix();
    mtx.postRotate(degree);/*from   w  w  w.  ja  v a2s.com*/
    return Bitmap.createBitmap(bitmap, 0, 0, w, h, mtx, true);
}

From source file:Main.java

public static Bitmap resize(Bitmap bmp, int width, int height) {
    float sx = (width * 1.0f) / bmp.getWidth();
    float sy = (height * 1.0f) / bmp.getHeight();
    Matrix matrix = new Matrix();
    matrix.postScale(sx, sy);/* w  ww  . ja v  a2s .  co  m*/
    return Bitmap.createBitmap(bmp, 0, 0, bmp.getWidth(), bmp.getHeight(), matrix, true);
}

From source file:Main.java

public static Bitmap rotateBitmapDegree(Bitmap bm, int degree) {
    Bitmap returnBm;// ww w  .  j  a va2  s . c om
    int w = bm.getWidth();
    int h = bm.getHeight();

    Matrix matrix = new Matrix();
    matrix.postRotate(degree);

    returnBm = Bitmap.createBitmap(bm, 0, 0, w, h, matrix, true);

    if (bm != returnBm) {
        bm.recycle();
    }

    return returnBm;
}

From source file:Main.java

public static Bitmap getSkewBitmap(Bitmap mBitmap, float xRatio, float yRatio) {
    int width = mBitmap.getWidth();
    int height = mBitmap.getHeight();

    Matrix matrix = new Matrix();
    matrix.postSkew(xRatio, yRatio);//  w  ww.j a  v a 2s . c om
    Bitmap mScrewBitmap = Bitmap.createBitmap(mBitmap, 0, 0, width, height, matrix, true);

    return mScrewBitmap;
}

From source file:Main.java

/**
 * TODO doc//from   ww w .  ja v  a  2s. co m
 *
 * @param source
 * @return
 */
public static Bitmap flipVerticallyBitmap(Bitmap source) {
    Matrix m = new Matrix();
    m.preScale(1, -1);
    return Bitmap.createBitmap(source, 0, 0, source.getWidth(), source.getHeight(), m, false);
}

From source file:Main.java

/**
 * TODO doc/*from   ww  w  .java2  s  .c o  m*/
 *
 * @param source
 * @return
 */
public static Bitmap flipHorizonallyBitmap(Bitmap source) {
    Matrix m = new Matrix();
    m.setScale(-1, 1);
    return Bitmap.createBitmap(source, 0, 0, source.getWidth(), source.getHeight(), m, false);
}

From source file:Main.java

public static Bitmap createRotatedBitmap(Bitmap bm, float degree) {
    Bitmap bitmap = null;//from  ww  w. j  a va2  s.  c o m
    if (degree != 0) {
        Matrix matrix = new Matrix();
        matrix.preRotate(degree);
        bitmap = Bitmap.createBitmap(bm, 0, 0, bm.getWidth(), bm.getHeight(), matrix, true);
    }

    return bitmap;
}

From source file:Main.java

private static Bitmap resizeBitmap(Bitmap bmp, float width, float height) {
    float xscale = width / bmp.getWidth();
    float yscale = height / bmp.getHeight();
    Matrix matrix = new Matrix();
    // resize original image
    matrix.postScale(xscale, yscale);/*from  ww w  . j  a v a2 s .  com*/
    Bitmap dstbmp = Bitmap.createBitmap(bmp, 0, 0, bmp.getWidth(), bmp.getHeight(), matrix, true);
    return dstbmp;
}

From source file:Main.java

public final static Bitmap rotationBitmap(Bitmap srcBitmap, float degrees) {
    Bitmap result = null;/*  w  w w  .j  av a2  s . c o m*/
    if (degrees != 0 && srcBitmap != null) {
        Matrix m = new Matrix();
        m.setRotate(degrees, (float) srcBitmap.getWidth() / 2, (float) srcBitmap.getHeight() / 2);
        try {
            Bitmap b2 = Bitmap.createBitmap(srcBitmap, 0, 0, srcBitmap.getWidth(), srcBitmap.getHeight(), m,
                    true);
            if (srcBitmap != b2) {
                srcBitmap.recycle();
                srcBitmap = b2;
            }
            result = b2;
        } catch (OutOfMemoryError ex) {
            ex.printStackTrace();
        }
    }
    return result;
}