我使用chartIQ库:https://www.chartiq.com 我的目标是限制最小和最大图表缩放。 我该怎么办?
答案 0 :(得分:0)
要设置最小缩放比例,可以设置ChartEngine.minimumZoomTicks字段。
http://documentation.chartiq.com/CIQ.ChartEngine.html#minimumZoomTicks
stxx.minimumZoomTicks=5; // when zoomed all the way in only 5 bars will show
恐怕没有一个字段可以反映该缩小功能,但是您可以通过利用prepend注入功能以及将zoomOutSpeed设置为1来实现您想要实现的目标。
http://documentation.chartiq.com/tutorial-Using%20the%20Injection%20API.html
http://documentation.chartiq.com/CIQ.ChartEngine.html#preferences%5B%60zoomOutSpeed%60%5D
var stxx = yourChartInstance;
stxx.preferences.zoomOutSpeed=1;
stxx.prepend("zoomOut", function() {
for(var chartName in stxx.charts){
var chart=stxx.charts[chartName];
chart.maxTicks=20; // this will set the maximum number of bars on the screen, along with zoomOutSpeed
}
});
如果还有其他问题,请直接通过support@chartiq.com与ChartIQ联系。