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I'm plotting a HighCharts heatmap of a wafer with around 50~70k points (it's like a CPU/processor silicon wafer). I need to put horizontal and vertical gridlines visible on the map, so that our engineers can easily figure out what's going on with the actual unit.
I have two concerns:
Horizontal gridlines are already OK, but the vertical gridlines are not drawn or visible. I thought, I just need to set gridZIndex=4. Kindly see image below - it should be drawn based on xAxis.tickPositions values (similar to yAxis)
I put some color options I found, but none of them could change the grid's color.
So far this is my code:
var option = {
chart: {
type: 'heatmap',
zoomType: 'xy',
},
boost: {
useGPUTranslations: true
},
title: {
text: chrt_title,
align: 'left',
x: 0,
style: {
fontSize: '12px',
}
},
exporting: {
buttons: {
contextButton: {
menuItems: [
'viewFullscreen', 'downloadPNG', 'downloadXLS'
]
}
},
enable: true,
},
xAxis: {
title: {
text: null
},
labels: {
enabled: false,
},
tickPositions: [1, 19, 43, 67, 91, 115, 139, 163, 183],
gridZIndex: 4, // DOESN'T WORK
gridLineDashStyle: 'Dash',
gridLineWidth: 1, // DOESN'T WORK
lineColor: 'red',
minorTickColor: 'red',
tickColor: 'red'
},
yAxis: {
title: {
text: null
},
reversed: true,
labels: {
enabled: false,
},
tickPositions: [1, 82, 116, 174, 272, 370, 428, 462, 544]
gridZIndex: 4, // ONLY PUT THIS AND WORKS ALREADY
gridLineDashStyle: 'Dash', // THIS WORKS TOO (Dot,Solid,etc)
lineColor: 'red',
minorTickColor: 'red',
tickColor: 'red'
},
colorAxis: {
stops: colrstops,
min: minval,
max: maxval,
startOnTick: true,
endOnTick: true,
labels: {
format: '{value}',
style: {
fontSize: '8px',
fontFamily: 'Verdana, sans-serif'
}
}
},
series: [{
boostThreshold: 100,
borderWidth: 0,
nullColor: '#ffffff',
tooltip: {
headerFormat: chrt_title + '<br/>',
pointFormat: 'RB{point.y} SL{point.x} <b>{point.value}</b>'
},
turboThreshold: Number.MAX_VALUE, // #3404, remove after 4.0.5 release
data: data
}]
}
As you can see, both xAxis and yAxis have gridZIndex = 4, gridLineDashStyle = 'Dash', but only the yAxis that gives the horizontal gridlines, no luck for xAxis (assuming this is where need to set the vertical gridlines) :(
the only similar question i found reg vertical gridlines is this one:
Highcharts: xAxis with vertical gridlines
but I tried to put the gridLineWidth=1, still nothin's happening T-T please help. thanks very much.
Update:
I temporarily replaced my option{} based on #ppotaczek sample but vertical gridlines still did not appeared.
Then I played with my own option{}, tried to add min and max in xAxis, and tried to temporarily removed my dynamic data and use #ppotaczek sample, the layout remains the same (no vertical gridlines)..
Also thought it has something to do with the version i'm using..? it's 9.0.1 - so I tried to update to latest 9.1.1, but also have same result.
var option = {
chart: {
type: 'heatmap',
},
xAxis: {
tickPositions: [1, 19, 43, 67, 91, 115, 139, 163, 183],
min: 1,
max: 183,
gridZIndex: 4, // DOESN'T WORK
gridLineDashStyle: 'Dash',
gridLineWidth: 1, // DOESN'T WORK
lineColor: 'red',
minorTickColor: 'red',
tickColor: 'red'
},
yAxis: {
title: {
text: null
},
reversed: true,
labels: {
enabled: false,
},
tickPositions: [1, 82, 116, 174, 272, 370, 428, 462, 544],
gridLineDashStyle: 'Dash', // THIS WORKS TOO (Dot,Solid,etc)
lineColor: 'red',
minorTickColor: 'red',
tickColor: 'red',
},
colorAxis: {},
series: [{
data: [
[10, 0, 1],
[20, 1, 5],
[30, 1, 5],
],
}]
}
I've been researching for hours trying to figure out this issue. I use ChartJS and trying to build line chart. It seems i have no gap between my chart and its legend, and need to add more space between them.
It should be like this:
But i got this (see my code snippet)
Here's my code:
new Chart(document.getElementById("line-chart"), {
type: "line",
data: {
labels: ["Label1", "Label2", "Label3", "Label4"],
datasets: [
{
label: "A",
fill: false,
data: [10, 30, 60, 100],
borderWidth: 1,
backgroundColor: "red",
borderColor: "red",
},
{
label: "B",
fill: false,
data: [28, 80, 60, 60],
borderWidth: 1,
backgroundColor: "green",
borderColor: "green",
},
],
},
options: {
legend: {
align: "start",
position: "right",
labels: {
usePointStyle: true,
fontSize: 10,
},
},
elements: {
line: {
tension: 0,
},
},
responsive: true,
maintainAspectRatio: false,
},
});
canvas {
height: 35vh !important;
width: 90%;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.9.3/Chart.js"></script>
<script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.9.3/Chart.min.js"></script>
<head></head>
<body>
<canvas id="line-chart"></canvas>
</body>
Depending on where the legend is placed there are some quick fix options available. See this question
For your case and, more often than not, I would recommend generating your own html legend which will give you full control.
You can set this up in the options:
options: {
legend: {
display:false, //turn default legend off
},
legendCallback : legendBuilder, //link to your custom function returning html string
}
Define where your legend will go in the html:
<div id="chart-container">
<canvas id="line-chart"></canvas>
<div id="chart-legend"></div>
</div>
Then generate your legend:
var myLegend = document.getElementById("chart-legend");
myLegend.innerHTML = myChart.generateLegend();
working example
I am trying bar chart using Highcharts. In the below code we have xaxis categories like : ['Name1', 'Name2', 'Name3', 'Name4' ].
Firstly, I am using the below highcharts code in react native to develop iOS app.
I am trying to place the Name on each individual bar's in the graph(bar chart), which is working but when the name text from the categories array is v.large then the width of the title is not getting increased & the text is coming in multiple lines with the minimum width. If the name is v.large then only we are getting dotted text on the graph.
Can we increase the width of the title? and If so how can we increase the width within the iPhone's width.
chart: {
type: 'bar',
reflow: true,
marginRight: 30,
},
credits: {
enabled: false
},
title: {
align: "left",
text: "A comparison of the business’ digital health with that of the competitors.",
backgroundColor:'green',
style: {
color: '#808080',
fontWeight: '400',
fontSize: '13px',
}
},
xAxis: {
categories: ['Name1', 'Name2', 'Name3', 'Name4' ],
title: {
align: "left",
},
scrollbar: {
enabled: false
},
labels: {
x: 25,
y: -22,
align: 'left',
useHTML: true,
style: {
fontSize: '13px',
fontFamily: 'Open Sans',
color: '#464646',
backgroundColor: 'green',
},
},
},
yAxis: {
gridLineColor: "transparent",
stackLabels: {
qTotals: [91,99,85,99],
enabled: true,
useHTML: true,
style: {
fontWeight: "bold",
},
formatter: function () {
return this.options.qTotals[this.x];
},
},
tickInterval: 20,
labels: {
enabled: false
},
plotOptions: {
series: {
dataLabels: {
align: 'center',
enabled: false,
crop: false,
overflow: 'none',
verticalAlign: 'top',
y: -50,
style: {
fontWeight: '300',
color: '#808080',
fontSize: '30px',
}
},
pointWidth: 25,
borderWidth: 0,
pointPadding: 10,
stacking: "normal",
states: {
hover: {
enabled: false
}
},
//cursor: 'pointer',
point: {
events: {
click: function (event) {
}
}
}
}
},
series: [
{
name: "",
data: [3, 1, 15, 1],
color: "#f5f6f8",
dataLabels: {
enabled: false
},
},
{
name: "",
color: "#ff0000",
data: [{ y: 97, color: "#0f875a" }, { y: 99, color: "#0f875a" }, { y: 85, color: "#0f875a" }, { y: 99, color: "#0f875a" }]
}
],
}
For a sample I have taken a graph i.e bar chart from Highcharts, In the link jsfiddle.net/psre6Lj9/1 we have some fruits names, where 'Apples' width is not sufficient and the text is being displayed in multiple lines. I want to increase the width of the title. How can i do that.
To increase the width of the labels, set the right style:
xAxis: {
categories: ['Apples Apples Apples Apples Apples Apples Apples ', 'Oranges', 'Pears', 'Grapes', 'Bananas'],
labels: {
x: 25,
y: -22,
align: 'left',
style: {
width: '300px'
}
}
}
Live demo: https://jsfiddle.net/BlackLabel/went9xmf/
API: https://api.highcharts.com/highcharts/xAxis.labels.style
How to tell extjs4 stretch just one element in hbox layout?
For example I have the following layout:
{
flex: 1,
layout: {
type: 'vbox',
align: 'stretch'
},
items: [{
flex: 1,
// GRID, needs to be stretched
}, {
// button, don't stretch
}, {
// another button, don't stretch
}]
}
In the code above I have all elements (including buttons) are stretched. Is it possible in box layouts?
I can, of course, wrap buttons in the hbox container, but I don't like this solution.
One workaround you could use is to give the buttons a maxHeight, since constrains always "win".
Ext.onReady(function(){
Ext.create('Ext.panel.Panel', {
width: 400,
height: 300,
renderTo: document.body,
layout: {
type: 'hbox',
align: 'stretch'
},
items: [{
flex: 1,
title: 'A panel'
}, {
xtype: 'button',
text: 'B1',
maxHeight: 25
}, {
xtype: 'button',
text: 'B2',
maxHeight: 25
}]
})
});
There is a form panel, and it acts like a container. Then i have another form panel, where i am adding a textfield and a button. I need this form panel to be in the center of the screen. And the button bottom of the textbox (I should be able to position it where ever in the form. Like Absolute layout).
My code is as follows; and it doesn't work the way i want it to. can some one look into this
Ext.define('MyApp.view.MyView', {
extend: 'Ext.form.Panel',
alias: 'widget.myview',
frame: true,
height: 800,
hidden: false,
hideMode: 'visibility',
id: 'myviewid',
autoScroll: false,
bodyPadding: 5,
initComponent: function () {
var me = this;
Ext.applyIf(me, {
items: [{
xtype: 'form',
height: 330,
width: 400,
layout: {
type: 'absolute'
},
bodyPadding: 10,
title: 'Care Fusion User Login',
anchor: '250 250',
items: [{
xtype: 'textfield',
id: 'name',
width: 233,
name: 'name',
fieldLabel: 'Nmae',
growMax: 200,
x: 10,
y: 30
} {
xtype: 'button',
height: 30,
width: 256,
text: 'Click',
x: 240,
y: 110
}]
}]
});
me.callParent(arguments);
}
});
Try to use following layout in your outer container:
layout: {
align: 'middle',
pack: 'center',
type: 'hbox'
},
then you inner form will be placed in the center of this outer form.