JavaFX

Question

给出下面的代码，我试图多次打印出单个图像（存储在变量 'image' 中）。关于我如何去做这件事有什么建议吗？任何信息都会有用。

    Image image = new Image("tileset.png");
    ImageView tileset = new ImageView();
    tileset.setImage(image);

    Rectangle2D viewport1 = new Rectangle2D(0,16,16,16); //(selected pixels)
    tileset.setViewport(viewport1);
    int length = 40, width= 40;  // declare size of array (print 40x40)

    // loop through grid, fill every tile with image 'image'. 
    // currently only fills position (40,40) with the image. 
    for(int y = 0; y < length; y++)
    {
        for(int x = 0; x < width; x++)
        {
            GridPane.setConstraints(tileset,x,y);
        }
    }


    root.getChildren().add(tileset);

Answer 1

方法GridPane.setConstraints(tileset,x,y)不会将子节点添加到网格窗格，它只是设置子节点的索引。为了将它添加到 gridpane 中，你应该在循环中每次调用 root.getChildren().add(tileset) 并使用新的 ImageView.

Image image = new Image("tileset.png");

Rectangle2D viewport1 = new Rectangle2D(0,16,16,16); //(selected pixels)
int length = 40, width= 40;  // declare size of array (print 40x40)

// loop through grid, fill every tile with image 'image'. 
// currently only fills position (40,40) with the image. 
for(int y = 0; y < length; y++)
{
    for(int x = 0; x < width; x++)
    {
        ImageView tileset = new ImageView(image);
        tileset.setViewport(viewport1);

        GridPane.setConstraints(tileset,x,y);
        root.getChildren().add(tileset);
    }
}

JavaFX - 有没有一种方法可以使用 imageview 多次打印一个图像？

JavaFX - Is there a method to print one image multiple times using imageview?

java

imageview

tile

gridpane