java纵横图

java纵横图"/>

java纵横图

Ozzy..

94

开始了:

Dimension imgSize = new Dimension(500, 100);

Dimension boundary = new Dimension(200, 200);

函数根据边界返回新大小

public static Dimension getScaledDimension(Dimension imgSize, Dimension boundary) {

int original_width = imgSize.width;

int original_height = imgSize.height;

int bound_width = boundary.width;

int bound_height = boundary.height;

int new_width = original_width;

int new_height = original_height;

// first check if we need to scale width

if (original_width > bound_width) {

//scale width to fit

new_width = bound_width;

//scale height to maintain aspect ratio

new_height = (new_width * original_height) / original_width;

}

// then check if we need to scale even with the new height

if (new_height > bound_height) {

//scale height to fit instead

new_height = bound_height;

//scale width to maintain aspect ratio

new_width = (new_height * original_width) / original_height;

}

return new Dimension(new_width, new_height);

}

如果任何人还需要图像大小调整代码,这里是一个不错的解决方案.

如果您对上述解决方案不确定,可以采用不同的方法来实现相同的结果.

@Ozzy的答案是正确的,除非不需要缩放(或者更具体地说,当原始宽度小于边界时).将`new_width`和`new_height`初始化为`original_width`和`original_height`可以解决问题. (2认同)

这个答案结束了三天的苦苦挣扎。谢谢。 (2认同)

如果目标尺寸较大，则此方法无效。因此，对于这种方法，“比例”应更改为“缩小”。 (2认同)