Develop Reference

Control legend for particular range of x axis for different traces using plotly javascript library

I want to control the legends of different traces all at once for particular range lets say x=0 to x=5. How can we do it?
var trace1 = {
x: [0, 1, 2, 3, 4, 5, 6, 7, 8],
y: [0, 3, 6, 4, 5, 2, 3, 5, 4],
type: 'scatter'
};
var trace2 = {
x: [0, 1, 2, 3, 4, 5, 6, 7, 8],
y: [0, 4, 7, 8, 3, 6, 3, 3, 4],
type: 'scatter'
};
var trace3 = {
x: [0, 1, 2, 3, 4, 5, 6, 7, 8],
y: [5, 7, 3, 2, 8, 6, 1, 9, 3],
type: 'scatter'
};
var data = [trace1, trace2, trace3];
var layout = {showlegend: true,
legend: {"orientation": "h"}};
Plotly.newPlot('myDiv', data, layout);
For example, when we click a legend, the encircled portion should get hid.
Sample code: Codepen_Sample
Update 2: what if trace(curve) is defined by set of different sub-traces whose ranges of the legends to be controlled are different but trace[name] are same for all the curves. For e.g this is the pseudo code:
for(let i=0; i<5; i++){
initialise trace1;
trace2;
trace3;
}

You can break up each of your three traces into starting and ending segments, then assign the starting segments the same name, same legendgroup, and only display one of these in the legend using the showlegend attribute.
Since plotly.js will make each trace a new color by default, you probably want to make the starting and ending segments of each trace to be the same color. Fixing the xaxis range will avoid having the entire plot resize when you toggle the legend entry.
Here is the javascript and codepen sample:
var trace1_start = {
x: [0, 1, 2, 3, 4, 5],
y: [0, 3, 6, 4, 5, 2],
type: 'scatter',
marker: {color: 'orange'},
name: 'start',
showlegend: true,
legendgroup: 'start'
};
var trace1_end = {
x: [5, 6, 7, 8],
y: [2, 3, 5, 4],
type: 'scatter',
marker: {color: 'orange'},
name: 'trace1',
};
var trace2_start = {
x: [0, 1, 2, 3, 4, 5],
y: [0, 4, 7, 8, 3, 6],
marker: {color: 'steelblue'},
type: 'scatter',
name: 'start',
showlegend: false,
legendgroup: 'start'
};
var trace2_end = {
x: [5, 6, 7, 8],
y: [6, 3, 3, 4],
type: 'scatter',
marker: {color: 'steelblue'}
};
var trace3_start = {
x: [0, 1, 2, 3, 4, 5],
y: [5, 7, 3, 2, 8, 6],
type: 'scatter',
marker: {color: 'forestgreen'},
name: 'start',
showlegend: false,
legendgroup: 'start'
};
var trace3_end = {
x: [5, 6, 7, 8],
y: [6, 1, 9, 3],
type: 'scatter',
marker: {color: 'forestgreen'}
};
var data = [trace1_start, trace1_end, trace2_start, trace2_end, trace3_start, trace3_end];
var layout = {showlegend: true,
legend: {"orientation": "h"}, xaxis: {"range": [0,8]}};
Plotly.newPlot('myDiv', data, layout);

Change z index label in plotly js

I want to change the z-index label in plotlyjs
I am using the following code. It currently shows X,Y,Z on hover. X, Y values are good. I want to know if there is some way where we can change the value label of Z?
On hover on the graph I want Z to be shown as 'Value'. How to get that?
var data = [ {
z: [[10, 10.625, 12.5, 15.625, 20],
[5.625, 6.25, 8.125, 11.25, 15.625],
[2.5, 3.125, 5., 8.125, 12.5],
[0.625, 1.25, 3.125, 6.25, 10.625],
[0, 0.625, 2.5, 5.625, 10]],
type: 'contour',
colorscale: [[0, 'rgb(166,206,227)'], [0.25, 'rgb(31,120,180)'], [0.45, 'rgb(178,223,138)'], [0.65, 'rgb(51,160,44)'], [0.85, 'rgb(251,154,153)'], [1, 'rgb(227,26,28)']]
}
];
var layout = {
title: 'Custom Contour Plot Colorscale'
};
Plotly.newPlot('myDiv', data, layout);

Try the hovertemplate option (https://plot.ly/javascript/reference/#contour-hovertemplate):
var data = [ {
z: [[10, 10.625, 12.5, 15.625, 20],
[5.625, 6.25, 8.125, 11.25, 15.625],
[2.5, 3.125, 5., 8.125, 12.5],
[0.625, 1.25, 3.125, 6.25, 10.625],
[0, 0.625, 2.5, 5.625, 10]],
type: 'contour',
colorscale: [[0, 'rgb(166,206,227)'], [0.25, 'rgb(31,120,180)'], [0.45, 'rgb(178,223,138)'], [0.65, 'rgb(51,160,44)'], [0.85, 'rgb(251,154,153)'], [1, 'rgb(227,26,28)']],
hovertemplate: 'x: %{x}, y: %{y}, Value: %{z}<extra></extra>'
}
];
var layout = {
title: 'Custom Contour Plot Colorscale'
};
Plotly.newPlot('myDiv', data, layout);
<script src="https://cdnjs.cloudflare.com/ajax/libs/plotly.js/1.49.5/plotly.min.js"></script>
<div id=myDiv>
</div>

Plotly: How to display a bar chart over a scatter plot?

I'm using plotly.js to do some data visualization. I need to display an opaque filled-area scatter plot behind a bar chart - something like this - but no matter how much I play with the bar chart's opacity or the order of my data array, the filled-area plot is placed on top of the bar chart.
This is what my code looks like:
<script>
var trace2 = {
x: [1, 2, 3, 4, 5],
y: [120, 180, 290, 150, 110],
name: 'Type 1',
type: 'bar'
};
var trace5 = {
x: [1, 2, 3, 4, 5],
y: [75, 48, 38, 61, 52],
name: 'Type 2',
fill: 'tozeroy',
fillcolor: 'rgb(235, 185, 10)',
type: 'scatter',
mode: 'none'
};
var data1 = [trace5, trace2];
var layout = {
xaxis: {
showdividers: true,
dividercolor: 'grey',
dividerwidth: 2
},
yaxis: {title: '<b>Data</b>', side: 'right'}
};
Plotly.newPlot('myDiv', data1, layout);
</script>

Plotly.js modebar groups icons and places it over legend

Here is the picture of my problem. As you can see, my modebar is appearing as a grouped set of icons and is placing it over the legend. I just copy and pasted some example code from their site using example data. I have no other css affecting this at all. Below is the blob of code I am using.
The similar post here shows what it SHOULD look like, they are all in a single row and out of the way of the legend.
How do I make my modebar look like the one in the second link?
<div id="myDiv"></div>
<script>
var trace1 = {
x: [0, 1, 2],
y: [10, 11, 12],
type: 'scatter'
};
var trace2 = {
x: [2, 3, 4],
y: [100, 110, 120],
yaxis: 'y2',
type: 'scatter'
};
var trace3 = {
x: [3, 4, 5],
y: [1000, 1100, 1200],
yaxis: 'y3',
type: 'scatter'
};
var data = [trace1, trace2, trace3];
var layout = {
yaxis: {domain: [0, 0.33]},
legend: {traceorder: 'reversed'},
yaxis2: {domain: [0.33, 0.66]},
yaxis3: {domain: [0.66, 1]}
};
Plotly.newPlot('myDiv', data, layout, {displaylogo: false});
</script>

Official "answer" for acceptance: this is usually due to external CSS.

How to create a horizontal threshold line in plotly js?

I am creating a simple line graph using plotly JS. The code is something like below:
var trace1 = {
x: [1, 2, 3, 4],
y: [10, 15, 13, 17],
type: 'scatter'
};
var layout = {
xaxis:{
title:"X-Axis",
tickangle:45,
rangemode:'nonnegative',
autorange:true,
exponentformat: "none"
},
yaxis:{
title: "Time",
tickangle:45,
rangemode:'nonnegative',
autorange:false
}
}
Plotly.newPlot(myDiv,[trace1],layout);
Now I want to create a horizontal line across the graph, parallel to x-axis which I want to span the entire graph. For this I added 'shapes' in layout something like below:
var layout = {
xaxis:{
title:"X_Axis",
tickangle:45,
rangemode:'nonnegative',
autorange:true,
exponentformat: "none"
},
yaxis:{
title: "Time",
tickangle:45,
rangemode:'nonnegative',
autorange:false
},
shapes: [
{
type: 'line',
x0: 2,
y0: 12.0,
x1: 3,
y1: 12.0,
line:{
color: 'rgb(255, 0, 0)',
width: 4,
dash:'dot'
}
}
]
};
Adding the 'shapes' parameter creates a horizontal value only between point 2 and 3 on the x-axes which I have specified .
My question is how to get the horizontal line span the entire graph without depending on x-axis value? Any help will be appreciated.

You could set xref to paper which tells Plotly not to rely on the x-axis coordinates but relative to the whole graph, i.e. 0 to 1.
var trace1 = {
x: [1, 2, 3, 4],
y: [10, 15, 13, 17],
type: 'scatter'
};
var layout = {
shapes: [
{
type: 'line',
xref: 'paper',
x0: 0,
y0: 12.0,
x1: 1,
y1: 12.0,
line:{
color: 'rgb(255, 0, 0)',
width: 4,
dash:'dot'
}
}
]
}
Plotly.newPlot(myDiv,[trace1],layout);
<script src="//cdn.plot.ly/plotly-latest.min.js"></script>
<div id='myDiv'></div>