Register now to learn Fabric in free live sessions led by the best Microsoft experts. From Apr 16 to May 9, in English and Spanish.
Hi
I am currently building a Custom Visuals inspired from the Bar Chart sample and I am trying to figure out a way to display the Data labels on top of each bar (Outside End).
Appreciate any help/reference on this topic.
module powerbi.extensibility.visual { function visualTransform(options: VisualUpdateOptions, host: IVisualHost) { let dataViews = options.dataViews; let dataInfo = { dataPoints: [], dataMax: 0 }; if (!dataViews || !dataViews[0] || !dataViews[0].categorical || !dataViews[0].categorical.categories || !dataViews[0].categorical.categories[0].source || !dataViews[0].categorical.values) return dataInfo; let categorical = dataViews[0].categorical; let category = categorical.categories[0]; let dataValue = categorical.values[0]; let dataPoints = []; let dataMax: number; for (let i = 0, len = Math.max(category.values.length, dataValue.values.length); i < len; i++) { dataPoints.push({ category: <string>category.values[i], value: dataValue.values[i] }); } dataMax = <number>dataValue.maxLocal; return { dataPoints: dataPoints, dataMax: dataMax }; } export class Visual implements IVisual { private host: IVisualHost; private svg: d3.Selection<SVGElement>; private barContainer: d3.Selection<SVGElement>; constructor(options: VisualConstructorOptions) { this.host = options.host; this.svg = d3.select(options.element) .append('svg') .classed('barChart', true); this.barContainer = this.svg .append('g') .classed('barContainer', true); } public update(options: VisualUpdateOptions) { let transformedData = visualTransform(options, this.host); let width = options.viewport.width; let height = options.viewport.height; this.svg.attr({ width: width, height: height }); let yScale = d3.scale.linear() .domain([0, transformedData.dataMax]) .range([height, 0]); let xScale = d3.scale.ordinal() .domain(transformedData.dataPoints.map(dataPoint => dataPoint.category)) .rangeRoundBands([0, width], 0.1, 0.2); let bars = this.barContainer .selectAll('.bar') .data(transformedData.dataPoints); bars.enter() .append('rect') .classed('bar', true); bars.attr({ width: xScale.rangeBand(), height: data => height - yScale(<number>data.value), x: data => xScale(data.category), y: data => yScale(<number>data.value) }); bars.exit().remove(); } } }
Please use tooltipService to render tooltips. You can follow our documentation.
Ignat Vilesov,
Software Engineer
Microsoft Power BI Custom Visuals
Thanks @v-viig!
I followed the online documentation and was able to add Tooltips to my visual.
However the requirement is to display the data Labels without having to hover each bar.
TooltipService is to show tooltip on hover event. To show labels all the time we would recommend to develop own Label component.
Ignat Vilesov,
Software Engineer
Microsoft Power BI Custom Visuals
Covering the world! 9:00-10:30 AM Sydney, 4:00-5:30 PM CET (Paris/Berlin), 7:00-8:30 PM Mexico City
Check out the April 2024 Power BI update to learn about new features.
User | Count |
---|---|
14 | |
2 | |
2 | |
1 | |
1 |