I am coding in typescript react js and I have a highstocks graph. The problem I need help with is that I need to show the values on hover on tags (div boxes) above the graph individual to each series plotted within. The values coincide with wherever the cursor is on the graph. Please help me to achieve this.
I am attaching an image for better understanding. The dotted line on the image is where the cursor is at the moment and I want to show the values: [128.32, 49.94, 1.01] instead of '--' next to each tag name: ['Throttle Valve, Posi', 'Mill Hydr. Unit, Gri', 'Water Injection, Pos']. Thanks
Image
Inside click events, you can access the nearest point using this.hoverPoint.
chart: {
events: {
click: function() {
console.log(this.hoverPoint)
}
}
},
Demo: https://jsfiddle.net/BlackLabel/8eym6jwo/
I was able to solve this problem. Appreciate everyone who helped out.
The solution (for getting an onclick point for multiple plotted series) is as follows:
this.hoverPoints?.map((item_hoverPoints, index_hoverPoints) => {
temp_trackValues[index_hoverPoints] = Number(
item_hoverPoints?.series?.points[this.hoverPoint?.index]?.y
).toFixed(3).toString();
});
Thanks
Related
I just started to learn AnyChart and I just have completed my first chart by using it. However, I don't know why the line marker goes behind the bars. I checked the
Is there any possibility to use something like a zindex? I would appreciate your help.
Thanks a lot
Screenshot of my bar chart
When you create a line marker, you can set its appearance by using the stroke() method, like this:
var lineMarker = chart.lineMarker();
lineMarker.value(9000);
lineMarker.stroke({
thickness: 3,
color: '#7E57C2',
dash: "2 4",
});
In your case, if you want to change its z-index just call the zIndex() method on the lineMarker and on the series variable:
var series = chart.bar(data);
series.zIndex(1);
lineMarker.zIndex(2);
The bigger the index, the higher the element position is.
If you would like to learn more about marker's appearance, please check the documentation.
I am trying to plot a series using a pie/radial chart to react. As per the documentation, I am passing the showAlways: true property that keeps showing a certain value in the middle of the chart even when the cursor is hovered or not hovered over the radial area.
But the following property does not seem to work in my case. Here is the link to the working snippet.
https://codesandbox.io/s/amazing-violet-wrp7y
I am not sure what's going wrong with the code here. Any help to resolve the same.
Your total.formatter function was not returning after calculating the total.
Here is the updated code
formatter(w) {
return w.globals.seriesTotals.reduce((a, b) => a + b, 0)
}
Updated CodeSandbox
I'm having trouble getting stacked column chart to animate when I perform setData on the series.
If the dataset has a lot of data points and the value of each data point in the dataset is also larger, the chart does not animate.
Has anyone experienced this issue?
Here is the fiddle that works correctly:
https://jsfiddle.net/AdityaParab/3f8vb5L7/
And this the the same code with much complex dataset
https://jsfiddle.net/AdityaParab/ow6yaen7/
How do I make it so that the animations work fine with complex dataset?
TIA
You need to increase animationLimit property:
plotOptions: {
series: {
animationLimit: 9e9
}
}
Live demo: https://jsfiddle.net/BlackLabel/c37mw1zj/
API Reference: https://api.highcharts.com/highcharts/plotOptions.series.animationLimit
I use kirjs/react-highcharts plugin for react but I have no idea how to get Highchart component in order to call reflow like: $('#container1').highcharts().reflow()
From docs its tells:
For access to methods & properties from the Highcharts library you can use ReactHighcharts.Highcharts. For example, the Highcharts options are available via ReactHighcharts.Highcharts.getOptions().
but I don't see there any reflow() method.
Any ideas?
Edit
its located under ReactHighcharts.Highcharts.charts so I can call
ReactHighcharts.Highcharts.charts[0].reflow()
but it has list of all highchart instances so I have no information what index is mine
I am using highcharts-react-official and highcharts. They are available via npm . Although I am using different packages, the working principle should be the same.
The way of using reflow() function in react-highchart is also Highcharts.charts[i].reflow(). I have prepared 2 code sandboxes for the demonstration. The first code sandbox shows the way of re-flowing every chart, and the second code sandbox shows the way of re-flowing a particular chart.
The first code sandbox link is here.
There is a button on App.js to hide and show highchart divs.
The child component is React.memo (for performance optimization), therefore the hidden highchart will not be auto resized after it becomes visible.
To let every chart window resize with respect to the window size. The following code is placed in App.js. It looks for all existing charts and re-flow them:
for (var i = 0; i < Highcharts.charts.length; i++) {
if (Highcharts.charts[i] !== undefined) {
Highcharts.charts[i].reflow();
}
}
The second code sandbox link is here.
Almost the same as the first code sandbox, but there is a ref array of referencing every chart.
The chart which needs re-flowing is placed with an id in its chart option.
Iterate every chart and get the index of the chart with that id e.g. "secondChart" for this example.
for (var i = 0; i < chartRef.current.length; i++) {
if (
chartRef.current[i].chart.userOptions.id !== undefined &&
chartRef.current[i].chart.userOptions.id === "secondChart"
)
Highcharts.charts[chartRef.current[i].chart.index].reflow();
}
Re-flow that chart.
The Reflow can be set with event load in options.
Workaround: You have to set reflow() using setTimeout() this will trigger the resizing. Time is set to 0 to avoid delay.
Solution
const options = {
chart: {
type: 'column',
style: {},
events: {
load() {
setTimeout(this.reflow.bind(this), 0);
},
},
},
title: 'Column Chart',
}
Usage
<HighchartsReact highcharts={Highcharts} options={options} />
I've been trying to use the ng-grid 3.0 (ui-grid). I have managed to populate my grid and it's been very responsive and it's features are really amazing. But I'm trying to customize my column headers, as I need more info there.
I can create a custom header cell template, as indicated in the docs, but I don't seem able to use a Bootstrap Dropdown there, it gets cropped and I can't use it at all. Some googling got me thinking it is probably some issue with the overflow attributes, but still I can't solve it. My grid options is as follows:
$scope.columnDefs = [
{ name:'name', displayName: 'Vdd', headerCellTemplate: 'headerTemplate.html' },
{ name:'gender', headerCellTemplate: 'headerTemplate.html' },
{ name:'company' }
]
$scope.gridOptions = {
columnDefs: $scope.columnDefs,
rowTemplate: 'rowTemplate.html',
data: 'data'
};
I have forked an example in plunkr and managed to reproduce my issue:
http://plnkr.co/edit/qdrFiifiz18fxB8w6Aja?p=preview
I want to replace the built-in dropdown menu (since it doesn't seem to allow nesting and sub-menus) and add another one (so in the end, I'd have two dropdown menus in each header cell)
Any help is appreciated =)
I am proud to say I think I've figured it out. I've been digging through ui-grid's source code and narrowed it down to this block (lines: 2847 - 2852).
function syncHorizontalHeader(scrollEvent){
var newScrollLeft = scrollEvent.getNewScrollLeft(colContainer, containerCtrl.viewport);
if (containerCtrl.headerViewport) {
containerCtrl.headerViewport.scrollLeft = gridUtil.denormalizeScrollLeft(containerCtrl.viewport,newScrollLeft, grid);
}
}
I noticed that containerCtrl.headerViewport.scrollLeft was never getting set to newScrollLeft. A quick google search led me to this StackOverflow thread which says that you can't set the scrollLeft property of an element if it's overflow is set to visible.
My solution was to replace containerCtrl.headerViewport.scrollLeft = gridUtil.denormalizeScrollLeft(containerCtrl.viewport,newScrollLeft, grid); with containerCtrl.headerViewport.style.marginLeft = -gridUtil.denormalizeScrollLeft(containerCtrl.viewport,newScrollLeft, grid) + 'px'; which just sets a negative margin on the header. Then add an overflow:hidden; style to .ui-grid-render-container-body to hide headers that extend beyond the main grid viewport.
Doing this messed up the placement of column menus, but there is an easy fix. On line 514 replace var containerScrollLeft = renderContainerElm.querySelectorAll('.ui-grid-viewport')[0].scrollLeft; with var containerScrollLeft = renderContainerElm.querySelectorAll('.ui-grid-viewport')[0].style.marginLeft; to use the margin instead of the scroll value in the menu placement calculation.