这是我的代码:
public static Picture modifyPicture (Picture p, int value)
{
// get width and height of the picture
int width = p.getWidth();
int height = p.getHeight();
System.out.println ("Picture has width of " + width +
" and height of " + height);
Picture p2 = new Picture (width, height*value);
int x = -1;
int y = -1;
for ( x = 0 ; x < width ; ++x )
{
for ( y = 0 ; y < height ; ++y )
{
Pixel pixel1 = p.getPixel (x,y);
Color c1 = pixel1.getColor();
Pixel pixel4 = p2.getPixel (x, y);
pixel4.setColor( c1 );
Pixel pixel5 = p2.getPixel (x, y + 1 * height);
pixel5.setColor( c1 );
Pixel pixel6 = p2.getPixel (x, y + 2 * height);
pixel6.setColor( c1 );
}
}
return p2;
} // end of method
嘿伙计们,这似乎是一个简单的问题,但我无法弄清楚我是如何做到这一点的。我想以某种方式循环for循环中的项目。代码所做的是将图片垂直放置在彼此之上。此代码适用于3张图片(值= 3),但如果我想要更少或更多图片,我必须继续添加/删除新行,即Pixel pixel7等。
我需要一种方法来根据值中的数字来循环它。我不是在找你为我编写代码,只是让我知道如何做到这一点。感谢您的时间和帮助!
答案 0 :(得分:0)
您必须修改方法,以便为每个像素循环value
次:
public static Picture modifyPicture (Picture p, int value)
{
// get width and height of the picture
int width = p.getWidth();
int height = p.getHeight();
System.out.println ("Picture has width of " + width +
" and height of " + height);
Picture p2 = new Picture (width, height*value);
for (int x = 0 ; x < width ; ++x )
{
for (int y = 0 ; y < height ; ++y )
{
Pixel pixel1 = p.getPixel (x,y);
Color c1 = pixel1.getColor();
for (int j=1; j < value; j++) {
Pixel pixel = p2.getPixel (x, y + j * height);
pixel.setColor( c1 );
}
}
}
return p2;
} // end of method