bars to start from -150 and only extend upward to the specified values.

[ajit]

I’m currently facing an issue where the Y Axis values in my bar chart range from 0 to -150. However, I specifically want the bars to start from -150 and only extend upward to the specified values, rather than starting from 0. Is there a property similar to beginAtZero that I can utilize to make the bars expand from -150 on the Y Axis?

[ajit]

I’m currently facing an issue where the Y Axis values in my bar chart range from 0 to -150. However, I specifically want the bars to start from -150 and only extend upward to the specified values, rather than starting from 0. Is there a property similar to beginAtZero that I can utilize to make the bars expand from -150 on the Y Axis?

const options = {
animationEnabled: true,
dataPointWidth: 10,

theme: “light2”, // “light1”, “light2”, “dark1”, “dark2”
title: {
text: “”
},
axisX: {

minimum: 2560,
maximum: 2630,
gridThickness: 1,

labelAngle: -50,
intervalType: “number”,
tickLength: 10,
tickPlacement: “outside”,
tickThickness: 1,
interval: 10,
},
axisY: {
title: “”,
reversed: true,
minimum: -150,
maximum: 0,
intervalType: “number”,
},
data: [{
type: “column”,
// indexLabelOrientation: “vertical”,
// axisYIndex: 10,
indexLabel: “{y}”,
indexLabelPlacement: “outside”,
indexLabelFontColor: “black”,
legendMarkerColor: “grey”,
dataPoints: sortedData,
color: ‘#348ceb’,
indexLabelOrientation: “vertical”,
}]

};

• This reply was modified 5 months ago by ajit.

[Manoj Mohan]

@ajit,
You can use Range Column Chart to show base of the column at -150 by passing the first y values as -150 and second value same as your existing y value for column chart. Please take a look at the code snippet for the converting column to rangeColumn and starting column at -150.

for(var i=0; i<chart.options.data[0].dataPoints.length; i++) {
  chart.options.data[0].dataPoints[i].y = [-150, chart.options.data[0].dataPoints[i].y]; 
}
chart.options.data[0].type = "rangeColumn";

Also, check out this JSFiddle for complete working code.

—-
Manoj Mohan
Team CanvasJS