I am making a stacked multi chart bar graph like this one
http://nvd3.org/examples/multiBar.html
Till now I am able to push my values on Y- axis and X axis too but the problem I am facing is that the all the values are not getting displayed on the x axis but only 10 values are getting displayed . I am using nvD3 library in my angular code . and displaying date on x axis.
$scope.options1 = {
chart: {
type: 'multiBarChart',
height: 600,
margin: {
top: 20,
right: 20,
bottom: 200,
left: 45
},
clipEdge: false,
duration: 500,
stacked: true,
groupSpacing: 0.1,
useInteractiveGuideline: true,
showMaxMin: false,
xAxis: {
axisLabel: 'Timeline',
showMaxMin: false,
tickFormat: function(d) {
return d3.time.format('%d-%m-%y')(new Date(d))
},
xScale:d3.time.scale(),
rotateLabels: '-70'
},
yAxis: {
axisLabel: 'Pending Bills',
axisLabelDistance: -20,
groupSpacing: 0.1,
tickFormat: function(d) {
return d3.format(',f')(d);
}
}
}
};
generating ticking value array using this function
$scope.options1.chart.xAxis.tickValues = function() {
var xTick = _.map(data.data.data[0].values, function(value) {
return value.x;
});
xTick = _.sortBy(xTick, function(date){ return new Date(date); });
console.log(xTick);
return xTick;
}
the output of the console.log(xTick) is something like this which is all dates -
["2015-09-01", "2015-09-02", "2015-09-03", "2015-09-04", "2015-09-05",
"2015-09-06", "2015-09-07", "2015-09-08", "2015-09-09", "2015-09-10",
"2015-09-11", "2015-09-12", "2015-09-13", "2015-09-14", "2015-09-15",
"2015-09-16", "2015-09-17", "2015-09-18", "2015-09-19", "2015-09-20",
"2015-09-21", "2015-09-22", "2015-09-23", "2015-09-24", "2015-09-25",
"2015-09-26", "2015-09-27", "2015-09-28", "2015-09-29", "2015-09-30",
"2015-10-01", "2015-10-02", "2015-10-03", "2015-10-04", "2015-10-05",
"2015-10-06", "2015-10-07", "2015-10-08", "2015-10-09", "2015-10-10",
"2015-10-11", "2015-10-12", "2015-10-13", "2015-10-14", "2015-10-15",
"2015-10-16", "2015-10-17", "2015-10-18", "2015-10-19", "2015-10-20"]
as much I read about the it. all the dates should be get plotted on x axis but they are not
If you want to display all the ticks on X-Axis, you can add this option to your chart options :
"reduceXTicks": false,
For extended option page you can visit :
Angular NVD3 - MultiBarChart
Hope it helps.
chart: {
type: 'chartType',
xAxis: {
ticks:8
}
}
You can try "ticks" property if you want to display a specific number of ticks on the axis.
Related
I am using c3.js to show temperature values, as a range I expect values from -30 to +50 degrees.
This works fine so far, but I am unhappy with the graphical representation.
I would like to have my X axis meet the Y axis at 0 and not at -30. Is this possible with c3.js? I already had a look at the manual and the examples, but I didn't find anything regarding offsetting the axis in this way.
You can hide default axis (1) and add custom line at zero (2).
See in action (jsfiddle)
var chart = c3.generate({
data: {
columns: [
['sample', 30, 20, -10, 40, 15, -25]
]
},
axis: {
x: {
show: false // (1)
},
y: {
max: 50,
min: -30,
// center: 0,
}
},
grid: {
y: {
lines: [{ value: 0, text: 'zero' }] // (2)
},
},
});
Related docs:
http://c3js.org/reference.html#axis-x-show
http://c3js.org/reference.html#grid-y-lines
In jqplot, why is the auto scaling on bar charts so very different from on line charts?
Using the exact same data, I get these two plots:
The options I use for the two plots are:
var bar_options = {
axesDefaults: { labelRenderer: $.jqplot.CanvasAxisLabelRenderer },
seriesDefaults: { renderer: $.jqplot.BarRenderer, rendererOptions: { highlightMouseOver:false, barMargin:5, shadowOffset:1 } },
axes: { xaxis: { renderer: $.jqplot.CategoryAxisRenderer }, yaxis: { tickOptions:{show:false} } },
};
and
var line_options = {
axesDefaults: { labelRenderer: $.jqplot.CanvasAxisLabelRenderer },
seriesDefaults: { rendererOptions: { smooth: true } },
axes: { xaxis: { min:1, max:30, tickInterval:1, pad:0 }, yaxis: { tickOptions:{show:false} } },
};
The line plot looks really good, but the bar chart is next to useless with the scaling shown.
Why is the default scaling so different between the two plots, and how can I get the scaling on the bar plot to be the same as the line graph?
EDIT:
I have created a simpler example, with data as follows:
[38.23, 39.33, 41.67, 40.21, 45.01, 44.47, 37.04]
And the resulting graph shown is this:
Adding a y-axis scale, shows that the data is starting from 0.
I changed my plot code to this...
var home_bar_options = {
axesDefaults: { labelRenderer: $.jqplot.CanvasAxisLabelRenderer },
seriesDefaults: { renderer: $.jqplot.BarRenderer, rendererOptions: { highlightMouseOver:false, barMargin:5, shadowOffset:1 } },
axes: { xaxis: { renderer: $.jqplot.CategoryAxisRenderer }, yaxis: { min:30, max:50 } }
};
But the plot doesn't change, and completely ignores the 'min' and 'max' values that I have entered for the y-axis scale.
Why is this?
I have not found any 'proper' way to move the axis on the bar chart, but I have managed to find a workaround.
My page is in PHP, and the data is coming from a mysql database.
So, after I have the data, and before I draw the bar chart plot, I get the minimum data value, and subtract that value from all my data!
So if my data is
35, 38, 36, 42, 40
I subtract 35 from all data, giving a new data set of
0, 3, 1, 7, 5
The bar chart will then plot this in a much better looking way!
Because I don't need to see actual data numbers, just the trend, this works ok for me - but wouldn't work if you needed a y-axis with a scale.
If anyone has a 'proper' way to properly adjust the bar plot y-axis away from zero, then I would be very happy to hear it!
But, for now, my workaround will suffice!
Im trying to set up a line chart nvd3 graphic, but im getting time value on x axis not vertically aligned, heres the code:
function fillData() {
var test1 = [],
test2 = [],
test3 = [];
var now = new Date(),
day = 1000*60*60*24;
var cont = 0;
for (var i = now - 9*day; i < now; i+=day)
{
var arr = [400,431,401,430,429,450,448,498,421,421];
var arr1 = [420,415,421,410,439,430,468,448,441,421];
var arr2 = [410,425,431,420,459,420,458,438,451,421];
test1.push({x: i, y: arr[cont]});
test2.push({x: i, y: arr1[cont]});
test3.push({x: i, y: arr2[cont]});
cont+=1;
} // fin for
return [
{
values: test1,
area: true,
key: 'test1',
color: '#81BA63'
},
{
values: test2,
area: true,
key: 'test2',
color: '#EAEAEA'
},
{
values: test3,
area: true,
key: 'test3',
color: '#6389BA'
}
];
}
nv.addGraph(function() {
var chart = nv.models.lineChart()
.margin({top: 0, bottom: 25, left: 45, right: 0})
.showLegend(true)
.forceY([300,500])
chart.yAxis
.showMaxMin(true)
.tickFormat(d3.format('.02'))
chart.xAxis
.showMaxMin(false)
.tickFormat(function(d) { return d3.time.format('%d - %b')(new Date(d)) });
chart.xScale(d3.time.scale());
d3.select('#sources-chart-line svg')
.datum(fillData())
.transition().duration(500)
.call(chart);
nv.utils.windowResize(chart.update);
return chart;
});
problem screenshot: http://oi57.tinypic.com/i6gq2t.jpg
Thanks in Advance!!
The problem is that the number of data points (9) and axis ticks (8) is different. D3 picks "representative" ticks for the scale, which aren't necessarily aligned with the data points. Therefore, you get ticks between data points for which the date is still correct, but not at exactly midnight like the data points.
One way of fixing this is to explicitly specify the tick values:
var data = fillData();
chart.xAxis
.tickValues(data[0].values.map(function(d) { return d.x; }));
This is a bit ugly, but it shows the principle and you can refactor the code to make these values better accessible.
[[["09251A0428",90],["10251A0547",37]],[["09251A0428",4],["10251A0547",54]]]
Above data contains two series. x values of each series are same. if the x values are numeric the jqplot displays line chart with two series as normal. but we need to display strings on x axis and for each string corresponding series values.
How to set strings on xaxis for multiple series line chart of jqplot?
I have preapared an example for you based on the data you gave:
JsFiddle link
$.jqplot.config.enablePlugins = true;
var chartData = [[["09251A0428",90],["10251A0547",37]],[["09251A0428",4],["10251A0547",54]]];
function PlotChart(chartData) {
var plot2 = $.jqplot('chart1', chartData, {
title: 'Mouse Cursor Tracking',
seriesDefaults: {
pointLabels: {
show: true
}
},
axes: {
xaxis: {
pad: 1,
// a factor multiplied by the data range on the axis to give the
renderer: $.jqplot.CategoryAxisRenderer,
// renderer to use to draw the axis,
tickOptions: {
formatString: '%b %#d'
}
},
yaxis: {
}
},
highlighter: {
sizeAdjust: 7.5
},
cursor: {
show: true
}
});
}
PlotChart(chartData);
I want to put a label to the CanvasOverlay Horizontal line and show it in the graph. Haven't found any documentation related to it. But was not successful. Any pointer to fix this issue would be appreciated.
var line3 = [['02/01/2012 00:00:00', '02/01/2012 01:00:00'], ['02/02/2012 00:00:00', '02/01/2012 06:00:00'], ['02/03/2012 00:00:00', '02/01/2012 06:00:00'], ['02/04/2012 00:00:00', '02/01/2012 06:00:00']];
var plot2 = $.jqplot('chart1', [line3], {
title:'Mouse Cursor Tracking',
axes:{
xaxis:{
min:'2012-02-01',
max:'2012-02-10',
Label: 'Day',
renderer:$.jqplot.DateAxisRenderer,
tickOptions:{
formatString:'%b %#d'
},
tickInterval:'1 day'
},
yaxis:{
min:'2012-02-01 00:00:00',
max:'2012-02-01 24:00:00',
Label: 'Time',
renderer:$.jqplot.DateAxisRenderer,
tickOptions:{
formatString:'%H'
},
tickInterval:'2 hour'
}
},
highlighter: {
show: false
},
cursor: {
show: true,
tooltipLocation:'sw'
},
canvasOverlay: {
show: true,
objects: [
{horizontalLine: {
name: 'pebbles',
y: new $.jsDate( '2012-02-01 05:00:00').getTime(),
lineWidth: 3,
color: 'rgb(100, 55, 124)',
shadow: true,
lineCap: 'butt',
xOffset: 0
}},
{dashedHorizontalLine: {
name: 'bam-bam',
y: new $.jsDate( '2012-02-01 10:00:00').getTime(),
lineWidth: 4,
dashPattern: [8, 16],
lineCap: 'round',
xOffset: '25',
color: 'rgb(66, 98, 144)',
shadow: false
}}
]
}
});
I recently had this same problem and came up with a solution that seems to work pretty well. First of all, you'll need to create a new function so that you can pass in the plot object "plot2". You can then access the various properties of your axes to help calculate where jqplot is rendering your horizontal line.
function applyChartText(plot, text, lineValue) {
var maxVal = plot.axes.yaxis.max;
var minVal = plot.axes.yaxis.min;
var range = maxVal + Math.abs(minVal); // account for negative values
var titleHeight = plot.title.getHeight();
if (plot.title.text.indexOf("<br") > -1) { // account for line breaks in the title
titleHeight = titleHeight * 0.5; // half it
}
// you now need to calculate how many pixels make up each point in your y-axis
var pixelsPerPoint = (plot._height - titleHeight - plot.axes.xaxis.getHeight()) / range;
var valueHeight = ((maxVal - lineValue) * pixelsPerPoint) + 10;
// insert the label div as a child of the jqPlot parent
var title_selector = $(plot.target.selector).children('.jqplot-overlayCanvas-canvas');
$('<div class="jqplot-point-label " style="position:absolute; text-align:right;width:95%;top:' + valueHeight + 'px;">' + text + '</div>').insertAfter(title_selector);
}
You're essentially grabbing the size of your graph's div, then subtracting out the # of pixels that make up the graph's title and the text of the x-axis labels. Then you can calculate how many pixels make up each point in your y-axis. Then it's just a matter of seeing where your line fits within the range and applying your label accordingly. You may have to tweak it in a few places, but this should work pretty well.