将一张图像旋转到另一张图像下方

发布于 2024-12-08 23:18:38 字数 462 浏览 0 评论 0原文

我目前正在尝试旋转图像，然后在不旋转的顶部绘制图像。但每当我使用： g2d.rotate(Math.toRadians(rot), (x+15), (y+15)); 之后我绘制的每张图像也会旋转。有什么方法可以旋转一张图像而不旋转其余图像（天哪，这真的很难解释）。这是我的绘画方法：

public void draw(Graphics2D g2d)
{
    move();
    if(bo.px==+1)rot--;
    if(bo.px==-1)rot++;
    g2d.rotate(Math.toRadians(rot), (x+15), (y+15));
    g2d.drawImage(img, x, y, null);//this should rotate
    g2d.drawImage(shine, x, y, null);//this shouldn't
}

提前致谢。

原文

I am currently trying to rotate an image and then drawing an image on top which isn't rotating. But whenever I use:
g2d.rotate(Math.toRadians(rot), (x+15), (y+15));
every image I draw afterwards rotates as well. Is there any way I can rotate one image and not rotate the rest (gosh its really hard to explain).
Here's my paint method:

public void draw(Graphics2D g2d)
{
    move();
    if(bo.px==+1)rot--;
    if(bo.px==-1)rot++;
    g2d.rotate(Math.toRadians(rot), (x+15), (y+15));
    g2d.drawImage(img, x, y, null);//this should rotate
    g2d.drawImage(shine, x, y, null);//this shouldn't
}

Thanks in advance.

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因为看清所以看轻 2024-12-15 23:18:38

您可以保存原始变换，旋转并绘制第一个图像，然后在绘制第二个图像之前应用回原始变换。

尝试

AffineTransform originalTransform = g2d.getTransform();
g2d.rotate(Math.toRadians(rot), (x+15), (y+15));
g2d.drawImage(img, x, y, null);
g2d.setTransform(originalTransform);
g2d.drawImage(shine, x, y, null);

You can save the original transform, rotate and draw the first image and then apply back the original transform before drawing the second image.

Try

AffineTransform originalTransform = g2d.getTransform();
g2d.rotate(Math.toRadians(rot), (x+15), (y+15));
g2d.drawImage(img, x, y, null);
g2d.setTransform(originalTransform);
g2d.drawImage(shine, x, y, null);

回复收藏 0 原文

靖瑶 2024-12-15 23:18:38

绘制旋转图像后，您需要执行反向旋转以使事物恢复到原始的非旋转状态。

public void draw(Graphics2D g2d)
{
    move();
    if(bo.px==+1)rot--;
    if(bo.px==-1)rot++;
    g2d.rotate(Math.toRadians(rot), (x+15), (y+15));
    g2d.drawImage(img, x, y, null);//this should rotate
    g2d.rotate(-Math.toRadians(rot), (x+15), (y+15)); // this resets the rotation!
    g2d.drawImage(shine, x, y, null);//this shouldn't
}

After you draw the rotated image you need to perform the inverse rotation to bring things back to the original non-rotated state.

public void draw(Graphics2D g2d)
{
    move();
    if(bo.px==+1)rot--;
    if(bo.px==-1)rot++;
    g2d.rotate(Math.toRadians(rot), (x+15), (y+15));
    g2d.drawImage(img, x, y, null);//this should rotate
    g2d.rotate(-Math.toRadians(rot), (x+15), (y+15)); // this resets the rotation!
    g2d.drawImage(shine, x, y, null);//this shouldn't
}

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~没有更多了~