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 smallBitmap(Bitmap bitmap, float scale) {
    int w = bitmap.getWidth();
    int h = bitmap.getHeight();
    Matrix matrix = new Matrix();
    matrix.postScale(scale, scale);//w  w w . ja v  a 2 s.co m
    Bitmap newbmp = Bitmap.createBitmap(bitmap, 0, 0, w, h, matrix, true);
    return newbmp;
}

From source file:Main.java

public static Bitmap rotateBitmap(Bitmap bmp, float rotation) {
    if (rotation == 0) {
        return bmp;
    }//from   w w  w  .  j  a va  2  s . co  m

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

    return Bitmap.createBitmap(bmp, 0, 0, bmp.getWidth(), bmp.getHeight(), matrix, true);
}

From source file:Main.java

public static Bitmap scaleBitmapSoft(Bitmap temp, float scaleSize) {
    if (!canUse(temp)) {
        return null;
    }/*  w  ww .ja v a  2 s  .co  m*/
    Matrix m = new Matrix();
    m.postScale(scaleSize, scaleSize, 0, 0);
    return Bitmap.createBitmap(temp, 0, 0, temp.getWidth(), temp.getHeight(), m, true);
}

From source file:Main.java

public static Bitmap rotateImageView(int angle, Bitmap bitmap) {
    if (bitmap == null) {
        return null;
    }//from  w w  w.  ja  v a2s  .c o m
    Matrix matrix = new Matrix();
    matrix.postRotate(angle);
    Bitmap resizedBitmap = Bitmap.createBitmap(bitmap, 0, 0, bitmap.getWidth(), bitmap.getHeight(), matrix,
            true);
    return resizedBitmap;
}

From source file:Main.java

public static Bitmap rotateFromDegree(Bitmap bitmap, int degree) {
    if (bitmap == null || degree == 0)
        return bitmap;
    Matrix matrix = new Matrix();
    matrix.preRotate(degree);/*from w w w.  j  ava2s .  c  om*/
    Bitmap mBitmap = Bitmap.createBitmap(bitmap, 0, 0, bitmap.getWidth(), bitmap.getHeight(), matrix, true);
    return mBitmap;
}

From source file:Main.java

public static Bitmap resizeBitmap(Bitmap bitmap, float sx, float sy) {
    Bitmap newBitmap;//from  ww  w .j  ava  2  s  .co  m
    Matrix matrix = new Matrix();
    matrix.postScale(sx, sy);
    newBitmap = Bitmap.createBitmap(bitmap, 0, 0, bitmap.getWidth(), bitmap.getHeight(), matrix, false);
    return newBitmap;
}

From source file:Main.java

public static Bitmap getTotateBitmap(Bitmap bitmap, int orientation) {
    Matrix matrix = new Matrix();

    switch (orientation) {
    case ExifInterface.ORIENTATION_ROTATE_90: {
        matrix.setRotate(90);//  w  ww  . j av a2  s. co  m
        bitmap = Bitmap.createBitmap(bitmap, 0, 0, bitmap.getWidth(), bitmap.getHeight(), matrix, true);
    }
        break;
    case ExifInterface.ORIENTATION_ROTATE_180: {
        matrix.setRotate(180);
        bitmap = Bitmap.createBitmap(bitmap, 0, 0, bitmap.getWidth(), bitmap.getHeight(), matrix, true);
    }
        break;
    case ExifInterface.ORIENTATION_ROTATE_270: {
        matrix.setRotate(270);
        bitmap = Bitmap.createBitmap(bitmap, 0, 0, bitmap.getWidth(), bitmap.getHeight(), matrix, true);
    }
        break;
    default:
        break;
    }
    return bitmap;
}

From source file:Main.java

public static Bitmap rotateBitmap(Bitmap bmp, int degrees) {
    if (degrees != 0) {
        Matrix matrix = new Matrix();
        matrix.postRotate(degrees % 360);
        return Bitmap.createBitmap(bmp, 0, 0, bmp.getWidth(), bmp.getHeight(), matrix, true);
    }/*from   w  w  w  .jav a 2s .  co m*/
    return bmp;
}

From source file:Main.java

public static Bitmap zoom(Bitmap bitmap, int w, int h) {
    int width = bitmap.getWidth();
    int height = bitmap.getHeight();
    Matrix matrix = new Matrix();
    float scaleWidth = ((float) w / width);
    float scaleHeight = ((float) h / height);
    matrix.postScale(scaleWidth, scaleHeight);
    return Bitmap.createBitmap(bitmap, 0, 0, width, height, matrix, true);
}

From source file:Main.java

public static Bitmap decodeBitmap(Bitmap bitmap, int orientation) {
    int width = bitmap.getWidth();
    int height = bitmap.getHeight();
    Matrix mtx = new Matrix();
    mtx.postRotate(orientation);/*www . j  a v  a2  s  .  c  o  m*/
    return Bitmap.createBitmap(bitmap, 0, 0, width, height, mtx, true);
}