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這是一個非常奇怪的錯誤,我似乎無法弄清楚。爲了簡化這一點,我有三個類:一個Canvas類(它用Graphics2D.draw()
繪製對象),然後是許多ob傢俱類,可以將其視爲一個類,因爲他們所做的只是返回不同的形狀。最後,我有一個CustomShape類,它可以讓我根據現有的其他形狀創建一個新的Shape。但形狀正在怪異的地方畫出來。任何y座標都與繪製形狀的位置不匹配。在隱蔽位置繪製的形狀
Closet.java:
public class Closet {
double x, y, width, height, rotation;
Color color;
Closet() {
this.x = X;
this.y = Y;
this.width = 40;
this.height = 40;
this.rotation = 0;
this.color = Color.blue;
}
public Shape getShape() {
GeneralPath closetShape = new GeneralPath();
closetShape.append(new Rectangle2D.Double(0, 0, width, height), false);
closetShape.moveTo(0 , 0);
closetShape.lineTo(width, height);
closetShape.moveTo(0, height);
closetShape.lineTo(width, 0);
// transform:
AffineTransform t = new AffineTransform();
t.translate(x, y);
Rectangle2D umriss = closetShape.getBounds2D();
t.rotate(Math.toRadians(rotation),umriss.getX()+umriss.getWidth()/2,umriss.getY()+umriss.getHeight()/2);
return t.createTransformedShape(closetShape);
}
}
CustomShape.java
public class CustomShape {
double x, y, width, height, rotation;
Color color;
private Closet[] c;
CustomShape(Closet... elements) {
this.m = elements;
GeneralPath path = new GeneralPath();
Closet[] newC = elements.clone();
Arrays.stream(newC).forEach(e -> path.append(e.getShape(), false));
this.x = path.getBounds2D().getX();
this.y = path.getBounds2D().getY();
this.width = path.getBounds2D().getWidth();
this.height = path.getBounds2D().getHeight();
this.rotation = 0;
this.color = Color.blue;
}
public Shape getShape() {
GeneralPath path = new GeneralPath();
Arrays.stream(c).forEach(e -> path.append(e.getShape(), false));
AffineTransform t = new AffineTransform();
t.translate(x, y);
Rectangle2D umriss = path.getBounds2D();
t.rotate(Math.toRadians(rotation),umriss.getX()+umriss.getWidth()/2,umriss.getY()+umriss.getHeight()/2);
return t.createTransformedShape(path);
}
}
改變你的Graphics2D平移/旋轉而不是做你的形狀內的平移和旋轉不是更好嗎?這樣的形狀可以保持不變,你不需要每次創建一個新的形狀。 – john16384