JAVAFX图表:在类别轴上设置原点 [英] JAVAFX CHARTS: Setting origin point on category axis

问题描述

我需要在javafx折线图中为类别轴添加零点.在图像中，我想要一些"T0"来表示x轴上的原点的零标记，以便可以将y轴上的点标记为图表上的点. 示例折线图(看起来像条形图！)

I am in need to add a zero point for category axis in javafx line chart. In the image I want some "T0" to represent the zero mark of origin on the x axis, so that I can mark point on y axis as on the chart. sample line chart ( looks like bar chart !)

推荐答案

我不清楚您要问的是什么，但是如果您想要x轴左端的像素坐标，则可以执行

I'm not completely clear what you're asking, but if you want the pixel coordinates of the left end of the x-axis, you can do

Category xAxis = ... ;

// ...

double leftEnd = xAxis.getDisplayPosition(value0) - xAxis.getCategorySpacing();

其中value0是第一个数据点的x值.

where value0 is the x-value of the first data point.

这篇关于JAVAFX图表:在类别轴上设置原点的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！