There is a line chart shown on the pic:
And its code is:
var data = google.visualization.arrayToDataTable(data);
var options = {
title: settings.title,
curveType: "function",
legend: { position: "bottom" }
};
// Create and draw the visualization.
new google.visualization.LineChart(
document.getElementById("chart_div")
).draw(data, options);
}
How to show only integer values on axis Y? I have pointed by red what I need to remove.
use the ticks option to show only integers
vAxis: {
ticks: [0, 1, 2]
}
remove this option to remove the dip below the baseline
curveType: "function"
Related
I have a Google LineChart where I need to draw the vertical axis lines based on a max value. Here is the scenario:
var options = {
vAxis: {
viewWindow: {
min: 0,
max: verticalAxisMaxValue // for my case it is 789. but could be anything.
},
gridlines: {
count: 10 // or something else
}
}
}
The value of verticalAxisMaxValue is determined before options is declared.
What I need is to draw the vertical axis lines to be drawn up to verticalAxisMaxValue (it could be anything like 789, 858, 560, ...) The problem I am having is the axis lines are being drawn but the line with the highest value never goes up to the verticalAxisMaxValue.
Please see the screenshot.
Here the highest value is 700, but I need to draw a line at 789. And the similar should happen for any verticalAxisMaxValue.
How can I do this?
viewWindow controls the visible range of the axis,
not necessarily the labels displayed on the axis.
to control the labels, you need to supply the ticks option.
the ticks option is an array of values, of the same type as on the axis.
it could be date, number, etc.
in this case, we can use the max value to build our ticks.
you will need to determine how much each label should increment by,
such as 100
here, we set the max, then add a tick for each 100 under the max,
then add the max as well to the ticks.
var verticalAxisMaxValue = 789;
var ticks = [];
for (var i = 0; i < verticalAxisMaxValue; i = i + 100) {
ticks.push(i);
}
ticks.push(verticalAxisMaxValue);
see following working snippet...
google.charts.load('current', {
packages: ['corechart']
}).then(function () {
var data = google.visualization.arrayToDataTable([
['Month', 'GROWTH TARGET'],
['Apr', 145],
['May', 169],
['Jun', 201],
['Jul', 231],
['Aug', 281],
['Sep', 325],
['Oct', 369],
['Nov', 444],
['Dec', 478]
]);
var verticalAxisMaxValue = 789;
var ticks = [];
for (var i = 0; i < verticalAxisMaxValue; i = i + 100) {
ticks.push(i);
}
ticks.push(verticalAxisMaxValue);
var options = {
vAxis: {
ticks: ticks,
viewWindow: {
min: 0,
max: verticalAxisMaxValue
}
}
};
var chart = new google.visualization.LineChart(document.getElementById('chart'));
chart.draw(data, options);
});
<script src="https://www.gstatic.com/charts/loader.js"></script>
<div id="chart"></div>
I am trying to draw a Critical Power Chart like this:
The data I get is linear. One value for every second from 1 up to 18000.
I have no clue how to teach flot to draw an non-linear x-axis.
I tried to set custom ticks, but this seems to just have impact to the labels, not the line.
The x axis ticks will always be the same and don't need to be calculated:
[1s,5s,15s,30s,1m,2m,3m,5m,10m,20m30m,1h,2h,3h,5h]
Playground including tons of data: https://jsfiddle.net/ogeo2ygx/6/
Code:
$.plot($("#cpChart"), [{data: data,label: "Critical Power", labelBoxBorderColor: 0, color: '#cbcbcb',yaxis:1,lines: { show: true, fill: true } }], {
xaxes: [{
//here should be some Magic to Draw an nice Critical Power Chart
tickFormatter: (t, v) => {
return t + "s";
}
}],
yaxes: [{
alignTicksWithAxis: 1,
position: "left",
tickFormatter: (t, v) => {
return t.toFixed(0) + " Watt"
}
}],
legend: {
position: 'sw',
labelBoxBorderColor: 0
},
colors: ["#1ab394"],
grid: {
color: "#999999",
clickable: true,
tickColor: "#D4D4D4",
borderWidth: 0,
hoverable: true
}
});
You can achieve that (which is called logarithmic scale) with two steps:
Transform the x-axis values using the Math.log function (with a +1 because the logarithm of zero is -infinity).
Define a custom ticks array with your ticks.
See the documentation for more information.
Relevant code:
xaxes: [{
ticks: [[1, '1s'],[5, '5s'], [15, '15s'],[30, '30s'],[60, '1m'],[120, '2m'],[180, '3m'], [300, '5m'], [600, '10m'], [1200, '20m'], [1800, '30m'],[3600, '1h'], [7200, '2h'], [10800, '3h'], [18000, '5h']],
transform: (x) => { return Math.log(1 + x); },
inverseTransform: (x) => { return Math.exp(x) - 1; }
}],
Updated fiddle: https://jsfiddle.net/ogeo2ygx/8/
I have to create a line chart, which has vertical bands in the background, and a vertical line at a specified position.Following is a sample chart image.
Sample chart
I tried to create a combo chart with line and bar as my series, to get the blue line and red vertical line. But i am unable to figure out how to get the vertical bands. Histogram is not supported by the combo chart. There is no option to create bar charts with variable width of each bar as well. Following is what i am able to create till now:
chart created so far
Following is my code:
function drawChart() {
// Some raw data (not necessarily accurate)
var data = google.visualization.arrayToDataTable([
['Percentile', 'Number of students', 'Vertical lines',{ role: 'style' }],
[1, 0.2020202,,''],
[3, 0.546875,,''],
[10, 1.20967742,,''],
[25, 1.87969925,,''],
[50, 1.953125, ,''],
[75, 1.32743363,,''],
[90, 0.64814815, ,''],
[97, 0.25316456, ,''],
[99, 0.00621891,,''],
[78, ,20,'stroke-width: 2; fill-color: red']
]);
var options = {
vAxis: {
gridlines:{count: 6},
viewWindow:{ max: 2.5}
},
hAxis: {
ticks: [0,20,40,60,80,100,120]
},
seriesType: 'line',
series: {1: {type: 'bars'}},
bar:{groupWidth:2},
intervals: { 'lineWidth':2, 'barWidth': 0.5, style: 'boxes' },
curveType: 'function',
legend: { position: 'none' },
};
// Instantiate and draw our chart, passing in some options.
var chart = new google.visualization.ComboChart(document.getElementById('curve_chart'));
chart.draw(data, options);
}
</script>
Please suggest how can these vertical bands be achieved?
Can any one suggest me the way of adding title to the C3.js line and bar charts ? I have got the following sample but it is for gauge chart. For any c3 chart is there any option to set the chart title?
donut: {
title: 'Title'
}
This was a top google result, so I thought I'd add that this is now part of the library:
title: {
text: 'My Title'
}
More info # https://github.com/masayuki0812/c3/pull/1025
You'd need to fall back to using D3 to add a chart title. Something like:
d3.select("svg").append("text")
.attr("x", 100 )
.attr("y", 50)
.style("text-anchor", "middle")
.text("Your chart title goes here");
I am using this code for my chart.
Code:
var chart = c3.generate({
data: {
columns: [
['Monday', 70],
['TuesDay', 20],
['Wednesday', 30],
['Thursday', 50],
['Friday', 100]
],
type: 'donut'
},
donut: {
title: "usage "
}
});
Result :
also couldn't find a way and ended up writing the title as the unit and editing the label.
gauge: {
label: {
format: function(value, ratio) {
return "%"+value;
},
show: true // to turn off the min/max labels.
},
min: 0,
max: 100,
units: "Overall Profit"
// width: 39 // for adjusting arc thickness
},
Is there a way to create a Legend control for series that belong to Indicator Plot with Dojo Charting.
I've tried some standard well described ways from the documentation. But with no success! Legend are not appearing for Indicator Plot.
Maybe somebody know is it possible to draw legend for this case or not?
Thanks in advance!
EDIT(my code added):
1. id - id of chart dom element.
2. opts.chartOpts - chart options from outside js.
3. legname - id of legend dom element.
4. scale.avg - is just a double value.
this.chart = new Chart(id, this.opts.chartOpts);
this.chart.addPlot("default", {
animate: { duration: 1000, easing: easing.linear },
type: ColumnsPlot,
markers: true,
gap: 1
});
this.chart.addPlot("avgline", {
type: IndicatorPlot,
vertical: false,
lineStroke: { color: "#00ff00", style: "ShortDash" },
stroke: { width: '1.2px' },
fill: '#eeeeee',
font: 'normal normal normal 11px Arial',
labels: 'none',
offset: { x: 32, y: 4 },
values: [scale.avg],
precision: this.opts.precision
});
//Add axis code goes here... cutted for clearance
this.chart.addSeries('Power', chartOptions.data);
this.chart.addSeries('Average', [scale.avg], { plot: 'avgline' });
var tip = new Tooltip(this.chart, "default", { 'class' : 'kaboom' });
var mag = new Magnify(this.chart, "default");
var hightlight = new Highlight(this.chart, "default");
this.chart.render();
this.leg = new Legend({ chart: this.chart, horizontal: false }, this.legName);
And as result of this code I see legend for 'default' plot 'Power' series only. And nothing for 'Average' series.