http://www.humblesoftware.com/flotr2
I am trying to modify the default font size, weight, and color for the Flotr2 radar chart. I could change this in the flotr2.js file but I want to leave the source file alone.
Currently when I set a larger fontSize in the Flotr.draw call it just spaces out the labels further.
function drawGraph(container, series, ticks)
{
Flotr.draw(container, series, {
colors: colors,
HtmlText: true,
fontSize: 30,
radar: {
show: true
},
grid: {
circular: true,
minorHorizontalLines: true
},
yaxis: {
min: 0,
max: 7,
minorTickFreq: 1,
showLabels: false
},
xaxis: {
ticks: ticks,
titleAlign: 'right'
},
legend: {
position: 'ss',
container: document.getElementById("legendItems")
}
});
}
I'm not sure what else to try...
Accessing the variables from the window object before drawing the graph seems to work well.
window.Flotr.defaultOptions.fontSize = 8;
window.Flotr.defaultOptions.xaxis.color = '#000000';
Couldn't find a way to change the font weight.
Related
I am working with the chart.js module in order to plot some data and am using the chartjs-plugin-zoom in order to enable zooming and panning however although the zooming works the labels on the x axis will not change for whatever reason.
I have seen similar questions but they all dealt with time series data and therefore the advice was unhelpful.
Here is the plot zoomed out:
and here is it zoomed in:
The key thing to notice is how the labels on the y axis have changed but the x axis labels have not changed. Here is the relevant config variable of the chart:
const config3 = {
type: 'line',
data: {
labels: [I ran out of chars but this is just a very long list of numbers in this format: 1,2,3,4,5],
datasets: [
{
label: "",
backgroundColor: '#'+Math.floor(Math.random()*16777215).toString(16),
borderColor: '#0071BC',
data: [I ran out of chars but this is just a very long list of numbers in this format: 1,2,3,4,5],
fill: false,
borderWidth: 1,
},
],
},
options: {
responsive: true,
title: {
display: true,
text: 'Peak: -1.2188'
},
tooltips: {
mode: 'index',
intersect: false,
},
hover: {
mode: 'nearest',
intersect: true
},
scales: {
xAxes: [{
display: true,
scaleLabel: {
display: true,
labelString: 'Frequency (Hz)'
},
ticks:{
autoSkip: true,
maxTicksLimit: 20
},
}],
yAxes: [{
display: true,
scaleLabel: {
display: true,
labelString: 'Amplitude'
}
}],
},
plugins:{
zoom: {
pan: {
enabled: true,
mode: 'xy',
speed: 20,
threshold: 10,
},
zoom: {
enabled: true,
drag: false,
mode: "xy",
speed: 0.1,
// sensitivity: 0.1,
}
}
},
elements: {
point:{
radius: 0
}
}
}
};
If needed I can provide more code but I imagine the mistake is probably contained in the config. I tried changing zoom.mode to be 'x' but that did not work.
In case someone else comes along this I figured out a solution that is pretty unintuitive.
The first problem is the way that labels are dealt with in chart.js and because they are treated as categories not x data the way that I thought they were. Therfore first you must pass your data in as coordinates in this format:
(as shown in this documentation: https://www.chartjs.org/docs/latest/charts/line.html)
data: [{
x: 10,
y: 20
}, {
x: 15,
y: 10
}]
And delete the labels variable.
However this will not work with line charts despite what the documentation says. To get around this you can set: type: 'scatter' and inside the dataset write showLine: true
This will generate a line plot where the x labels are auto generated and zooming will work perfectly.
I also think there was a performance boost which is a nice bonus.
I am using flotchart JS for showing bar graphs. However, I can't seemed to fix the spacing between bars.
I have enabled panning already. However, sets the width of the bar according to the placeholder. How can set each bar's spacing according to its label?
this is my code:
$.plot("#graph", [ data ], {
series: {
bars: {
show: true,
barWidth: 0.6,
align: "center"
}
},
xaxis: {
mode: "categories",
showTicks: false,
gridLines: false,
panRange: [0,null],
},
yaxis: {
panRange: [0, null],
plotPan: false //pan axis is allowed for plot pan
},
pan: {
interactive: true,
mode: "smart",
active: true
}
});
An alternative solution to your problem could be to rotate the tick labels for example by using the tickrotor plugin:
xaxis: {
mode: "categories",
showTicks: false,
gridLines: false,
panRange: [0,null],
rotateTicks: 90
},
You may need to increase the height of the chart since the labels now take up more space. See this fiddle for a full example.
You can achieve this by limiting the number of bars shown at once by giving a max property for the xaxis:
xaxis: {
mode: "categories",
showTicks: false,
gridLines: false,
panRange: [0,null],
max: 7, // set according to your needs, maybe dynamic depending on chart width
min: 0
},
You then have to use panning to see the other bars. See this fiddle for an example.
I am currently using Chart.js to display my data as a radar chart. The problem I am facing is that each time I add data to the page, it sets the max value to whatever the highest value is in the table. I need it to start with a Y-axis of 0 to 100.
I am using Chart.js v 2.1.2
Here's the chart and config code for the chart:
myRadar = new Chart(document.getElementById("canvas"), config);
var config = {
type: 'radar',
data: radarChartData,
options:
{
responsive: false,
maintainAspectRadio: true,
legend: {
position: 'top',
},
title: {
display: true,
text: 'Radar Chart'
},
scale: {
reverse: false,
ticks: {
beginAtZero: true,
},
pointLabels: {
callback: function (pointLabel) {
if (pointLabel.length > 10)
return pointLabel.substring(0, 10) + '...';
else
return pointLabel
}
}
},
scaleOverride: true,
scaleSteps: 5,
scaleStepWidth: 20,
scaleStartValue: 100,
}
};
I tested this on 2.2.1, no sure if they had Min/Max for your version.
ticks: {
max:100, // Set it to your Max value
min: 0, // You can also change the Min
beginAtZero: false, // in case you change the Min
}, // etc
Docs: tick configuration
Codepen: Chart.js Radar Chart
I want to render a very simple horizontal stacked bar with only two facts. Without any axes.
Like this: My target.
But the only thing i could do is this: My actuell Version.
The Problem is that when i only insert two values (e.g. "2" and "7") it only shows me one bar for the "7".And the second problem is the tick on the left side with these little lines. Dont know how to solve this. Any ideas ?
My Code:
$(document).ready(function(){
var s1 = [2];
var s2 = [7];
var s3 = [10];
plot3 = $.jqplot('chart1', [s1, s2, s3], {
// Tell the plot to stack the bars.
stackSeries: true,
captureRightClick: true,
seriesDefaults:{
renderer:$.jqplot.BarRenderer,
rendererOptions: {
barDirection: 'horizontal',
// Put a 30 pixel margin between bars.
// barMargin: 30,
// Highlight bars when mouse button pressed.
// Disables default highlighting on mouse over.
highlightMouseDown: true
},
pointLabels: {show: true}
},
axes: {
yaxis: {
renderer: $.jqplot.CategoryAxisRenderer,
},
xaxis: {
// Don't pad out the bottom of the data range. By default,
// axes scaled as if data extended 10% above and below the
// actual range to prevent data points right on grid boundaries.
// Don't want to do that here.
padMin: 0,
//max: 15,
}
},
axesDefaults:{
showTicks: false,
showTickMarks: false,
},
legend: {
show: false,
location: 'e',
placement: 'outside'
},
grid:{
drawGridlines: false,
borderWidth: 0,
shadow: false,
background:'#ffffff',
gridLineColor: '#FFFFFF',
},
});
// Bind a listener to the "jqplotDataClick" event. Here, simply change
// the text of the info3 element to show what series and ponit were
// clicked along with the data for that point.
$('#chart3').bind('jqplotDataClick',
function (ev, seriesIndex, pointIndex, data) {
$('#info3').html('series: '+seriesIndex+', point: '+pointIndex+', data: '+data);
}
);
});
It looks like the padMin: 0 setting on xaxis is causing the second series to be incorrectly displayed. If you remove that altogether it works as you want.
As for removing the grid line ticks, try adding this to the axesDefaults settings
tickOptions: {
markSize: 0,
}
So it will now look like this:
axesDefaults:{
showTicks: false,
showTickMarks: false,
tickOptions: {
markSize: 0,
}
},
If it doesn't work with just that, try using the canvasAxisTickRenderer, more details here: http://www.jqplot.com/tests/rotated-tick-labels.php
I'm working with jqplot, and am seeing some odd series label behavior.
If the value is too large, the labels don't show. I can't find a setting that preserves canvas area for the labels. Any thoughts?
[example fiddle] http://jsfiddle.net/abenrob/nDcPB/11/
$(document).ready(function(){
optionsObj = {
grid: {
background: "rgba(0,0,0,0.0)",
drawBorder: false,
shadow: false
},
seriesColors: ["#6699FF"],
seriesDefaults:{
shadow:false,
renderer:$.jqplot.BarRenderer,
rendererOptions: {
barDirection: 'horizontal',
barWidth:15,
barMargin: 5
}
},
series:[
{pointLabels:{
show: true
}}],
axesDefaults: {
rendererOptions: {
drawBaseline: false
}
},
axes: {
yaxis: {
renderer: $.jqplot.CategoryAxisRenderer,
tickOptions:{
showGridline:false,
markSize:0
}
},
xaxis:{
tickOptions:{
show: false,
showGridline:false,
markSize:0
}
}
}
};
// labels not shown
plot = $.jqplot('chart1', [[[507740000000,'Budget'],[496740000000,'Forecast'],[506740000000,'Expended']]], optionsObj)
// labels shown
plot2 = $.jqplot('chart2', [[[50774000,'Budget'],[49674000,'Forecast'],[50674000,'Expended']]], optionsObj)
});
Doesn't seem like jqPlot will render them if there's not enough space to the right of your bars. You can use the xaxis pad option to provide more space but I also had to throw a min: 0 in there to get the auto-scaling to behave a little saner:
...
xaxis:{
tickOptions:{
show: false,
showGridline:false,
markSize:0
},
min: 0,
pad:1.8
}
...
Updated fiddle here.