/
renderers.js
37 lines (36 loc) 路 989 Bytes
/
renderers.js
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// render error bars
function renderErrorBar(params, api) {
var xValue = api.value(0);
var highPoint = api.coord([xValue, api.value(1)]);
var lowPoint = api.coord([xValue, api.value(2)]);
var halfWidth = api.size([1, 0])[0] * 0.1;
var style = api.style({
stroke: api.visual('color'),
fill: null
});
return {
type: 'group',
children: [{
type: 'line',
shape: {
x1: highPoint[0] - halfWidth, y1: highPoint[1],
x2: highPoint[0] + halfWidth, y2: highPoint[1]
},
style: style
}, {
type: 'line',
shape: {
x1: highPoint[0], y1: highPoint[1],
x2: lowPoint[0], y2: lowPoint[1]
},
style: style
}, {
type: 'line',
shape: {
x1: lowPoint[0] - halfWidth, y1: lowPoint[1],
x2: lowPoint[0] + halfWidth, y2: lowPoint[1]
},
style: style
}]
};
}