I am trying to make a bar chart with VizFrame. Right now this is what my chart looks like:
**edit Chart wont embed? Here is the link: https://imgur.com/5vDzgCs
How would I go about putting the data label inside the bar if it can fit? I tried looking it up, but I am having trouble solving this issue.
Thanks!
to display the data labels inside the bars use the plotArea.dataLabel.position property. As stated in the documentation the property has the following features:
Supported Value Type: String
Supported Values: inside, outside, outsideFirst
Readonly: false
Serializable: true
Default value: "outsideFirst"
Description: Set data label display
position. 'outsideFirst' means if the plot has no space to display data
label outside of the bar, the data label will be displayed inside.
one option to set the property would be for example in the onInit method of the controller of the view:
...
onInit: function() {
oVizFrameBar = this.byId("idVizFrameBar");
oVizFrame.setVizProperties({
plotArea: {
dataLabel: {
position: 'inside'
}
}
}
}
...
Related
How can I exclude a specific data series from showing in the tooltip with tooltip.trigger = axis?
I'm asking because I have a very complex graph with one line chart, two bar charts and one heatmap. And the heatmap has so many data that the tooltip ends up with too many lines. The heatmap values are not very important, so I would like to remove them from showing in the tooltip.
Right now I'm using formatter to exclude them, but is there any other way?
I do exactly the same: adding a new attribute to the series and checking it from formatter.
Something like this:
series: [{
// ...
showInTooltip: true
// ...
}]
// ----
formatter: series => {
var displayed = series.filter(item => item.showInTooltip);
// work with displayed where showInTooltip === true
}
Also you can store callback instead attribute and it will work.
Updated: Suddenly I found undocumented feature and it will solved you trouble by the right way, apparently.
series: [{
// ...
tooltip: {
show: false
}
// ...
}]
Using vue-chartjs is it possible to change to color of the bar?
This is similar to this question which is based on chart.js
chart.js bar chart color change based on value, and the jsfiddle provided in the answer is exactly what I'm looking for, except within vue-chartjs.
Any help appreciated
So this should be your chart calling (in my case, I named it bar-chart)
<bar-chart
:chart-data="barData"
:options="barChartOptions">
</bar-chart>
:chart-data and :options are 2 props defined when I create my bar component:
Vue.component('bar-chart', {
extends: VueChartJs.Bar,
props: ['chartData', 'options'],
So your barData, should be an object like this:
{datasets: [...], labels: [...]}
Your dataset is an array with the charts you want to show. So if you want to show only 1 data, than your array only has one position. So let's assume that by now. We'll use dataset = dataset[0]
Your dataset accepts some properties, 2 of them are a must:
Data (an array with the data you want to show)
Label (the name of the label when you hover on the bardata. It should display "Label: value"
It also accepts some other properties like:
fill
hoverBackgroundColor
backgroundColor
check more here: https://www.chartjs.org/docs/latest/charts/bar.html
so now, your backgroundColor property is either a color value (e.g. red, #FF0000), or an array.
If it is an array, then this should be true dataset.bgColors.length === dataset.data.length
and each dataset.bgColors array position is the color of the respective value in the dataset.data array.
dataset: {
data: [1,2,-3,-4,2,1]
backgroundColor: ['green', 'green', 'red', 'red', 'green', 'green']
...
}
So now, you can just build a bgColors array with the color you want, based on your data.
------------- UPDATING THE DATA -----------------
To anybody else who is looking for a way to UPDATE your chart data after it was rendered. It's a different question, but to help the community:
When you set your chart component, you can define a watch for the chartData prop, so when the chartData changes, the method is called and you re-render the chart:
Vue.component('bar-chart', {
extends: VueChartJs.Bar,
props: ['chartData', 'options'],
methods: {
renderLineChart () {
this.renderChart(this.chartData, this.options)
}
},
mounted () {
this.renderLineChart()
},
watch: {
chartData: function () {
this.$data._chart.destroy()
this.renderLineChart()
}
}
})
IMPORTANT: Make sure you make a new copy of the new chartData object info because the watch will only check if the object itself changed, not its inner properties.
However, if you really want to change ONLY the dataset.data or dataset.backgroundColor or any other, than the watcher will not know it changed. You can use the property deep: true in the watcher for this, as it will check changes deep inside the chartData object:
watch:
chartData: {
handler: function () {
this.$data._chart.destroy()
this.renderLineChart()
},
deep: true
}
}
I hope the answer was clear for everyone.
Best regards
I currently have a map loaded, and I have some bars on the map. I would like to include my variable text_toltip[i] in the tooltip so that the coordinates and text of the variable text_toltip[i] are displayed in each bar. how can I do it? I'm new in this library.
I know that there is an attribute called minHeight, which allows to establish a minimum height for the bars, but I would like to establish a maximum predetermined size for the bars and so the other sizes and colors of the bars are calculated. how can I do it?
series: [{
type: 'bar3D',
coordinateSystem: 'geo3D',
barSize:0.05,
minHeight:0.05,
data: data.map(function (item) {
return {
value: [item[0], item[1], item[2]],
label: {
show: false
}
}
}),
shading: 'lambert'
}]
https://plnkr.co/edit/Tdwwk8yKCi0fiY7I3AqK?p=preview
Thank you.
For this question,I read the Echarts's documentation and found a property belonging to "geo3D called "boxHeight" ,which can play the same role as you say "maxheight".I've tested it,no problem.
boxHeight
I am making simple line chart in kendo. Something like this demo http://demos.telerik.com/kendo-ui/dataviz/line-charts/index.html.
I also have mulitple series as on example(India,World etc...).
My question is, is there way to allow that only one serie is active on chart.
Series behave like checkbox button(I can have one or more active) and I want them to behave as radio button so only one serie can be active.
The short answer is No. You cannot modify the legend in anyway to achieve such behavior. However you can use radio buttons separately and update the options of the chart - such as the series.
Here is a small JsBin example:
$("input[type=radio]").click(function(){
var clickedOn = $(this).val();
var data = $.grep(series, function(val){
return val.name == clickedOn;
})[0];
chart.setOptions({series:[
{
name: clickedOn,
data: data.data
}
]})
})
You can do this with a button. Haven't tried it with a radio button.
$("#ButtonName").kendoButton({
click: function (e) {
var varname = $("#chartName").data("kendoChart")
kendodatasourcename.filter(
{ field: "fieldName", operator: "eq", value: "filteredvaluefromyourdataset" })
I'm using the following piece of code to display a set of bar charts in jqPlot. However, I am getting 2 problems:
There is no padding on either side of the range values for the xaxis. The pad attribute seems to have no effect.
When the number of bars is large, the bars overlap on top of each other. The barPadding attribute seems to have no effect.
I looked at this link Having problems with jqPlot bar chart . The answer suggested there was to use a CategoryAxisRenderer. But since I'm using time-series data, I require the DateAxisRenderer.
Please help.
function plotBarGraph(data,myticks,series)
{
$("#placeholder").empty();
$.jqplot('placeholder',data,
{
//stackSeries:true,
seriesDefaults:{
renderer:$.jqplot.BarRenderer,
barMargin:1,
barPadding:0.5
},
axes:
{
xaxis:
{
ticks:myticks,
tickInterval:10,
renderer:$.jqplot.DateAxisRenderer,
pad:2.5,
tickOptions:
{
formatString:'%d-%m-%y'
}
}
},
legend:
{
show:true,
labels:series
}
});
}
In this case if you do not want to use the approach mentioned in the link, you might want to play with min/max values for your date axis.
I think you might also find useful the approach to a similar sort of problem with padding where I chose to set ticks on creation and hide the unwanted ones after the plot is drawn.
Before I can be of any further assistance please provide a sample presenting your problem.
For your second problem, I ran into a similar issue. I set up a selection statement that widened the size of my chart depending on how many bars would be in it. I then made the parent div scrollable (called "dataHolder"), and that solved the problem.
// set div properties depending on how many sets of data are in the
//array so the view is sized properly
$("#chartDiv").html("").css("width", "750px"); // chartDiv's default settings
$("#tabs-6").removeClass("dataHolder").css("width", "900px"); // parent Div's default settings
if (dataArray.length > 10) {
$("#chartDiv").css("width", "1600px");
$("#tabs-6").addClass("dataHolder").css("width", "900px");
} else if (dataArray.length > 6) {
$("#chartDiv").css("width", "1200px");
$("#tabs-6").addClass("dataHolder").css("width", "900px");
}
I found a solution to use Date data with CategoryAxisRenderer. You have to configure de xaxis like follows:
axes: {
xaxis: {
renderer: $.jqplot.CategoryAxisRenderer,
rendererOptions: {
tickRenderer: $.jqplot.DateTickRenderer,
tickOptions: {
formatter: $.jqplot.DateTickFormatter,
formatString:'%d/%m'
}
}
}
}
I hope it helps! ;)