I need to draw x & y intercepts for all data points in a scratter chart. I went through major and minor grid lines. But it could not be my perfect solution.
Like the image below:
The sample image with x and y intercepts only on data points
You can use the render function of the chart to draw the horizontal and vertical lines on the chart surface. In the following demo, I name the x and y axes so that in the render function I can use the getAxis() method along with slot and range. See DOCS.
var data = [[0.67, 5.4], [2.2, 2], [3.1, 3]];
$("#chart").kendoChart({
series: [{
type: "scatter",
data: data,
markers: {size: 16},
}],
yAxis: { name: "value", majorGridLines: {visible: false } },
xAxis: { name: "category", majorGridLines: {visible: false } },
render: function(e){
var chart = e.sender;
var yAxis = chart.getAxis("value");
var xAxis = chart.getAxis("category");
//iterate each point on the chart
for (var i=0; i<data.length; i++){
//vertical line
var valRange = yAxis.range();
var valSlot = yAxis.slot(valRange.min, valRange.max);
var point = data[i];
var catSlot = xAxis.slot(point[0]);
var path = new kendo.drawing.Path({
stroke: {color: "#B3BDBD", width: 1}
}).moveTo(catSlot.origin.x + catSlot.size.width/2, valSlot.origin.y)
.lineTo(catSlot.origin.x + catSlot.size.width/2, valSlot.bottomRight().y);
chart.surface.draw(path);
//horizontal line
var ySlot = yAxis.slot(point[1]);
var xRange = xAxis.range();
var xSlot = xAxis.slot(xRange.min, xRange.max);
var pathH = new kendo.drawing.Path({
stroke: {color: "#B3BDBD", width: 1}
}).moveTo(xSlot.origin.x, ySlot.origin.y + ySlot.size.width/2)
.lineTo(xSlot.bottomRight().x, ySlot.origin.y + ySlot.size.width/2);
chart.surface.draw(pathH);
}
}
});