Y-Axis Minimum,Maximum and Interval Manual Plotting

[muralimnmcse]

Hai,
I have my own standardised logic for calculating the max,min and interval values for my graphs, but when i apply the same in canvas the max,min and interval values gets auto changed. Please let me know how to avoid the same.
Sample:
var chart = new CanvasJS.Chart(“chartContainer”, {
title:{
text: “Plotting Interval Issue in CanvasJS”
},
data: [
{
// Change type to “doughnut”, “line”, “splineArea”, etc.
type: “column”,
axisY:{
minimum: -2100,
maximum: 10236,
interval: 3003,
},
dataPoints: [
{ label: “apple”, y: 8897.10 },
{ label: “orange”, y: 2608.39 },
{ label: “banana”, y: -2088.73 },
{ label: “mango”, y: 1971.12 },
{ label: “watermelon”, y: 1971.12 },
{ label: “grape”, y: 138.52 },
{ label: “carrot”, y: -615.21 },
{ label: “lemon”, y: -991.10 }
]
}
]
});

chart.render();

[Sanjoy]

Muralimnmcse,

axisY is attributes of Chart options, not of dataSeries. Here is the working code in jsfiddle.

[muralimnmcse]

Hi Sanjoy,

I don’t have problem in data loading, the issue is with the plotting intervals,
Sample:
var chart = new CanvasJS.Chart(“chartContainer”, {
title:{
text: “Plotting Interval Issue in CanvasJS”
},
axisY:{
minimum: -109,
maximum: 60,
interval: 42.25
},
data: [
{
// Change type to “doughnut”, “line”, “splineArea”, etc.
type: “column”,
dataPoints: [
{ label: “apple”, y: 51.9 },
{ label: “orange”, y: 7.75 },
{ label: “banana”, y: 5.07 },
{ label: “mango”, y: 2.59 },
{ label: “watermelon”, y: 2.58 },
{ label: “grape”, y: 1.09 },
{ label: “carrot”, y: 0.04 },
{ label: “lemon”, y: -0.01 },
{ label: “jackfruit”, y: -0.01 },
{ label: “custardapple”, y: -0.02 },
{ label: “butterfruit”, y: -29.11 },
{ label: “jackfruit”, y: -94.29 }
]
}
]
});

chart.render();

In the above sample the canvasjs automatically changes my max,min and intervals and the plotting intervals are -84.5,-42.25,0,42.25 but it should have been -109,-66.75,-24.5,17.75,60.

[Sanjoy]

Sorry Muralimnmcse,

minimum doesn’t set label/interval start position and as of now we don’t provide options to set interval/label start position, it’s in our road-map.

[muralimnmcse]

Sanjoy,

Thanks for your quick update, request you to keep me posted in this regards.

[reusen]

Hi

Is it possible to dynamically change the axisY minimum value so that it is always the lowest y value? The example chart is https://negotiation.azurewebsites.net/helloworld.php. In this case I want the axisY minimum to be the lowest y value

Thanks

[Vishwas R]

@reusen,

Yes, you can set axisY minimum to the lowest y-value. You can achieve that by finding the lowest y-value and changing axisY minimum using set method. Please take a look at this jsfiddle.

—
Vishwas R
Team CanvasJS