我目前正在研究Java / Swing中的绘图程序。目前,我制作了JPanel
,上面带有轴和标记。
我的问题是我该如何合并使用正值标记绘制负数的循环?
目前我做了这样的事情:
private void DrawAxisMarkers(Graphics g) {
//X MARKERS
g.setColor(Color.red);
for (int xI = 0; xI <= this.getWidth(); xI += MatherProperties.SCALE) {
g.drawLine(xI * MatherProperties.SCALE+ origin.x, markerSize + origin.y, xI * MatherProperties.SCALE + origin.x, -markerSize + origin.y);
}
for (int xI = 0; xI <= this.getWidth(); xI += MatherProperties.SCALE) {
g.drawLine(-xI * MatherProperties.SCALE + origin.x, markerSize + origin.y, -xI * MatherProperties.SCALE + origin.x, -markerSize + origin.y);
}
//Y MARKERS
g.setColor(Color.blue);
for (int yI = 0; yI <= this.getHeight(); yI += MatherProperties.SCALE) {
g.drawLine(markerSize + origin.x, yI * MatherProperties.SCALE + origin.y, -markerSize + origin.x, yI * MatherProperties.SCALE + origin.y);
}
for (int yI = 0; yI <= this.getHeight(); yI += MatherProperties.SCALE) {
g.drawLine(markerSize + origin.x, -yI * MatherProperties.SCALE + origin.y, -markerSize + origin.x, -yI * MatherProperties.SCALE + origin.y);
}
}
我对如何合并它们没有任何想法:\而且这些轴的原点在中间,但用户可以更改原点。
图形: