Adds categories to a chart's axes. 更多...
导入语句: | import QtCharts 2.2 |
实例化: | QBarCategoryAxis |
继承: | AbstractAxis |
The BarCategoryAxis type can be set up to show an axis line with tick marks, grid lines, and shades. Categories are drawn between the ticks. It can be used also with a line series.
The following QML snippet illustrates how to use BarCategoryAxis:
ChartView { BarCategoryAxis { id: categoryAxis categories: ["Jan", "Feb", "Mar", "Apr", "May", "Jun" ] } // Add a few series... }
categories : QStringList |
The categories of an axis.
count : int |
The number of categories of an axis.
max : string |
The maximum value on the axis.
min : string |
The minimum value on the axis.
rangeChanged ( string min , string max ) |
此信号被发射当 min or max value of the axis changes.
The corresponding signal handler is
onRangeChanged
.
注意:
相应处理程序是
onRangeChanged
.
void clear () |
Removes all categories. Sets the maximum and minimum values of the axis range to QString::null.