我想我可能应该指出我是如何做到这一点的——毕竟 Stack Overflow 也应该是一个存储库。前面的代码如下:
m_vis.setRendererFactory(new RendererFactory() {
Renderer yAxisRenderer = new AxisRenderer(Constants.LEFT, Constants.TOP);
Renderer xAxisRenderer = new AxisRenderer(Constants.CENTER, Constants.FAR_BOTTOM);
Renderer barRenderer = new ShapeRenderer();
public Renderer getRenderer(VisualItem item) {
return item.isInGroup("yAxis") ? yAxisRenderer :
item.isInGroup("xAxis") ? xAxisRenderer :
barRenderer;
}
});
我扩展了形状渲染器以始终返回一个具有正确宽度和高度的矩形,并将其定位在它应该在的位置左侧半条。如果你想把你的酒吧放在中间,你需要自己做——prefuse 帮不了你。
m_vis.setRendererFactory(new RendererFactory() {
Renderer yAxisRenderer = new AxisRenderer(Constants.LEFT, Constants.TOP);
Renderer xAxisRenderer = new AxisRenderer(Constants.CENTER, Constants.FAR_BOTTOM);
Renderer barRenderer = new ShapeRenderer() {
protected Shape getRawShape(VisualItem item) {
double x = item.getX();
double y = item.getY();
if (Double.isNaN(x) || Double.isInfinite(x))
x = getInsets().left + axisWidth + totalBarWidth / 2;
if (Double.isNaN(y) || Double.isInfinite(y))
y = 0;
double width = totalBarWidth / (barCount + 1) - barGap;
double height = getHeight() - getInsets().bottom - axisHeight - y;
x -= width / 2;
return rectangle(x, y, width, height);
}
};
public Renderer getRenderer(VisualItem item) {
return item.isInGroup("yAxis") ? yAxisRenderer :
item.isInGroup("xAxis") ? xAxisRenderer :
barRenderer;
}
});