@nova-ui/charts
Version:
Nova Charts is a library created to provide potential consumers with solutions for various data visualizations that conform with the Nova Design Language. It's designed to solve common patterns identified by UX designers, but also be very flexible so that
180 lines • 28.6 kB
JavaScript
// © 2022 SolarWinds Worldwide, LLC. All rights reserved.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to
// deal in the Software without restriction, including without limitation the
// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
// sell copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
import { arc } from "d3-shape";
import defaultsDeep from "lodash/defaultsDeep";
import isUndefined from "lodash/isUndefined";
import { DATA_POINT_NOT_FOUND, HIGHLIGHT_DATA_POINT_EVENT, HIGHLIGHT_SERIES_EVENT, INTERACTION_DATA_POINTS_EVENT, SELECT_DATA_POINT_EVENT, } from "../../constants";
import { Renderer } from "../../core/common/renderer";
import { InteractionType, } from "../../core/common/types";
import { RenderLayerName } from "../types";
/**
* Default configuration for Radial Renderer
*/
export const DEFAULT_RADIAL_RENDERER_CONFIG = {
annularWidth: 20,
annularPadding: 5,
maxThickness: 30,
annularGrowth: 0.15,
cursor: "default",
enableSeriesHighlighting: true,
enableDataPointHighlighting: true,
};
/**
* Radial renderer is a generic renderer that is able to draw pie and donut charts
*/
export class RadialRenderer extends Renderer {
config;
segmentWidth;
/**
* Creates an instance of RadialRenderer.
* @param {IRadialRendererConfig} [config]
* Renderer configuration object. Defaults to `DEFAULT_RADIAL_RENDERER_CONFIG` constant value.
*/
constructor(config = {}) {
super(config);
this.config = config;
this.config = defaultsDeep(this.config, DEFAULT_RADIAL_RENDERER_CONFIG);
}
/** See {@link Renderer#draw} */
draw(renderSeries, rendererSubject) {
const dataContainer = renderSeries.containers[RenderLayerName.data];
const data = renderSeries.dataSeries.data;
const accessors = renderSeries.dataSeries.accessors;
// TODO: This handles several data points withing one series as well. Most probably this can be abstracted to other renderer
const arcGenerator = (d, index) => {
const separateArc = this.getArc(renderSeries.scales.r.range(), arc(), index);
return separateArc(d);
};
this.segmentWidth = this.getSegmentWidth(renderSeries);
const g = dataContainer.selectAll("path.arc").data(data);
g.exit().remove();
g.enter()
.append("path")
.attr("class", "arc pointer-events nui-chart--path__outline")
.style("stroke-width", this.config.strokeWidth)
.style("cursor", this.config.cursor)
.on("mouseenter", (d, i) => {
this.emitDataPointHighlight(renderSeries, d, i, rendererSubject);
})
.on("mouseleave", (d, i) => {
this.emitDataPointHighlight(renderSeries, null, DATA_POINT_NOT_FOUND, rendererSubject);
})
// TODO: testing event, remove in favor or generic interaction setup
.on("click", (d, i) => {
rendererSubject.next({
eventName: SELECT_DATA_POINT_EVENT,
data: {
seriesId: renderSeries.dataSeries.id,
index: i,
data: d.data,
position: this.getDataPointPosition(renderSeries.dataSeries, i, renderSeries.scales),
},
});
})
.merge(g)
.attr("d", arcGenerator)
.attr("fill", (d, i) => accessors.data.color
? accessors.data.color(d.data, i, data, renderSeries.dataSeries)
: accessors.series.color?.(renderSeries.dataSeries.id, renderSeries.dataSeries));
}
/** See {@link Renderer#getDataPointPosition} */
getDataPointPosition(dataSeries, index, scales) {
if (index < 0) {
return undefined;
}
const pieArcData = dataSeries.data[index];
const dataPointArc = this.getArc(scales.r.range(), arc(), index);
const centroid = dataPointArc.centroid(pieArcData);
return {
x: centroid[0],
y: centroid[1],
width: 0,
height: 0,
};
}
getInnerRadius(range, index) {
if (isUndefined(this.segmentWidth) ||
isUndefined(this.config.annularPadding)) {
throw new Error("Can't compute inner radius");
}
const calculatedRadius = range[1] -
range[0] -
this.segmentWidth -
index * (this.config.annularPadding + this.segmentWidth);
return calculatedRadius >= 0 ? calculatedRadius : 0;
}
getOuterRadius(range, index) {
if (isUndefined(this.segmentWidth) ||
isUndefined(this.config.annularPadding)) {
throw new Error("Can't compute outer radius");
}
const calculatedRadius = range[1] -
range[0] -
index * (this.config.annularPadding + this.segmentWidth);
return calculatedRadius >= 0 ? calculatedRadius : 0;
}
getArc(range, generatedArc, index) {
const innerRadius = this.getInnerRadius(range, index);
return generatedArc
.outerRadius(this.getOuterRadius(range, index))
.innerRadius(innerRadius);
}
getSegmentWidth(renderSeries) {
if (!(this.config.maxThickness && this.config.annularGrowth)) {
return this.config.annularWidth;
}
return Math.min((renderSeries.scales.r.range()[1] -
renderSeries.scales.r.range()[0]) *
this.config.annularGrowth, this.config.maxThickness);
}
emitDataPointHighlight(renderSeries, data, i, rendererSubject) {
const position = this.getDataPointPosition(renderSeries.dataSeries, i, renderSeries.scales);
const dataPoint = {
seriesId: renderSeries.dataSeries.id,
dataSeries: renderSeries.dataSeries,
index: i,
data: data,
position: position,
};
if (this.config.enableSeriesHighlighting) {
rendererSubject.next({
eventName: HIGHLIGHT_SERIES_EVENT,
data: dataPoint,
});
}
if (this.config.enableDataPointHighlighting) {
rendererSubject.next({
eventName: HIGHLIGHT_DATA_POINT_EVENT,
data: dataPoint,
});
}
// we're emitting this event manually, because it's not triggered by mouse interactive area in this case
rendererSubject.next({
eventName: INTERACTION_DATA_POINTS_EVENT,
data: {
interactionType: InteractionType.MouseMove,
dataPoints: {
[renderSeries.dataSeries.id]: dataPoint,
},
},
});
}
}
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© 2022 SolarWinds Worldwide, LLC. All rights reserved.\n//\n// Permission is hereby granted, free of charge, to any person obtaining a copy\n//  of this software and associated documentation files (the \"Software\"), to\n//  deal in the Software without restriction, including without limitation the\n//  rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n//  sell copies of the Software, and to permit persons to whom the Software is\n//  furnished to do so, subject to the following conditions:\n//\n// The above copyright notice and this permission notice shall be included in\n//  all copies or substantial portions of the Software.\n//\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n//  THE SOFTWARE.\n\nimport { Arc, arc, DefaultArcObject } from \"d3-shape\";\nimport defaultsDeep from \"lodash/defaultsDeep\";\nimport isUndefined from \"lodash/isUndefined\";\nimport { Subject } from \"rxjs\";\n\nimport {\n    DATA_POINT_NOT_FOUND,\n    HIGHLIGHT_DATA_POINT_EVENT,\n    HIGHLIGHT_SERIES_EVENT,\n    INTERACTION_DATA_POINTS_EVENT,\n    SELECT_DATA_POINT_EVENT,\n} from \"../../constants\";\nimport { Renderer } from \"../../core/common/renderer\";\nimport { Scales } from \"../../core/common/scales/types\";\nimport {\n    IDataPoint,\n    IDataSeries,\n    InteractionType,\n    IPosition,\n    IRadialRendererConfig,\n    IRendererEventPayload,\n} from \"../../core/common/types\";\nimport { IRenderSeries, RenderLayerName } from \"../types\";\nimport { IRadialAccessors } from \"./accessors/radial-accessors\";\n\n/**\n * Default configuration for Radial Renderer\n */\nexport const DEFAULT_RADIAL_RENDERER_CONFIG: IRadialRendererConfig = {\n    annularWidth: 20,\n    annularPadding: 5,\n    maxThickness: 30,\n    annularGrowth: 0.15,\n    cursor: \"default\",\n    enableSeriesHighlighting: true,\n    enableDataPointHighlighting: true,\n};\n\n/**\n * Radial renderer is a generic renderer that is able to draw pie and donut charts\n */\nexport class RadialRenderer extends Renderer<IRadialAccessors> {\n    protected segmentWidth?: number;\n\n    /**\n     * Creates an instance of RadialRenderer.\n     * @param {IRadialRendererConfig} [config]\n     * Renderer configuration object. Defaults to `DEFAULT_RADIAL_RENDERER_CONFIG` constant value.\n     */\n    constructor(public config: IRadialRendererConfig = {}) {\n        super(config);\n        this.config = defaultsDeep(this.config, DEFAULT_RADIAL_RENDERER_CONFIG);\n    }\n\n    /** See {@link Renderer#draw} */\n    public draw(\n        renderSeries: IRenderSeries<IRadialAccessors>,\n        rendererSubject: Subject<IRendererEventPayload>\n    ): void {\n        const dataContainer = renderSeries.containers[RenderLayerName.data];\n\n        const data = renderSeries.dataSeries.data;\n        const accessors = renderSeries.dataSeries.accessors;\n\n        // TODO: This handles several data points withing one series as well. Most probably this can be abstracted to other renderer\n        const arcGenerator = (d: any, index: number) => {\n            const separateArc = this.getArc(\n                renderSeries.scales.r.range(),\n                arc(),\n                index\n            );\n            return separateArc(d);\n        };\n        this.segmentWidth = this.getSegmentWidth(renderSeries);\n\n        const g: any = dataContainer.selectAll(\"path.arc\").data(data);\n\n        g.exit().remove();\n\n        g.enter()\n            .append(\"path\")\n            .attr(\"class\", \"arc pointer-events nui-chart--path__outline\")\n            .style(\"stroke-width\", this.config.strokeWidth)\n            .style(\"cursor\", this.config.cursor)\n            .on(\"mouseenter\", (d: any, i: number) => {\n                this.emitDataPointHighlight(\n                    renderSeries,\n                    d,\n                    i,\n                    rendererSubject\n                );\n            })\n            .on(\"mouseleave\", (d: any, i: number) => {\n                this.emitDataPointHighlight(\n                    renderSeries,\n                    null,\n                    DATA_POINT_NOT_FOUND,\n                    rendererSubject\n                );\n            })\n            // TODO: testing event, remove in favor or generic interaction setup\n            .on(\"click\", (d: any, i: number) => {\n                rendererSubject.next({\n                    eventName: SELECT_DATA_POINT_EVENT,\n                    data: {\n                        seriesId: renderSeries.dataSeries.id,\n                        index: i,\n                        data: d.data,\n                        position: this.getDataPointPosition(\n                            renderSeries.dataSeries,\n                            i,\n                            renderSeries.scales\n                        ),\n                    },\n                });\n            })\n            .merge(g)\n            .attr(\"d\", arcGenerator)\n            .attr(\"fill\", (d: any, i: number) =>\n                accessors.data.color\n                    ? accessors.data.color(\n                          d.data,\n                          i,\n                          data,\n                          renderSeries.dataSeries\n                      )\n                    : accessors.series.color?.(\n                          renderSeries.dataSeries.id,\n                          renderSeries.dataSeries\n                      )\n            );\n    }\n\n    /** See {@link Renderer#getDataPointPosition} */\n    public getDataPointPosition(\n        dataSeries: IDataSeries<IRadialAccessors>,\n        index: number,\n        scales: Scales\n    ): IPosition | undefined {\n        if (index < 0) {\n            return undefined;\n        }\n        const pieArcData: DefaultArcObject = dataSeries.data[index];\n        const dataPointArc = this.getArc(scales.r.range(), arc(), index);\n        const centroid = dataPointArc.centroid(pieArcData);\n\n        return {\n            x: centroid[0],\n            y: centroid[1],\n            width: 0,\n            height: 0,\n        };\n    }\n\n    public getInnerRadius(range: number[], index: number): number {\n        if (\n            isUndefined(this.segmentWidth) ||\n            isUndefined(this.config.annularPadding)\n        ) {\n            throw new Error(\"Can't compute inner radius\");\n        }\n\n        const calculatedRadius =\n            range[1] -\n            range[0] -\n            this.segmentWidth -\n            index * (this.config.annularPadding + this.segmentWidth);\n        return calculatedRadius >= 0 ? calculatedRadius : 0;\n    }\n\n    public getOuterRadius(range: [number, number], index: number): number {\n        if (\n            isUndefined(this.segmentWidth) ||\n            isUndefined(this.config.annularPadding)\n        ) {\n            throw new Error(\"Can't compute outer radius\");\n        }\n\n        const calculatedRadius =\n            range[1] -\n            range[0] -\n            index * (this.config.annularPadding + this.segmentWidth);\n        return calculatedRadius >= 0 ? calculatedRadius : 0;\n    }\n\n    protected getArc(\n        range: [number, number],\n        generatedArc: Arc<any, DefaultArcObject>,\n        index: number\n    ): Arc<any, DefaultArcObject> {\n        const innerRadius = this.getInnerRadius(range, index);\n        return generatedArc\n            .outerRadius(this.getOuterRadius(range, index))\n            .innerRadius(innerRadius);\n    }\n\n    protected getSegmentWidth(\n        renderSeries: IRenderSeries<IRadialAccessors>\n    ): number | undefined {\n        if (!(this.config.maxThickness && this.config.annularGrowth)) {\n            return this.config.annularWidth;\n        }\n        return Math.min(\n            (renderSeries.scales.r.range()[1] -\n                renderSeries.scales.r.range()[0]) *\n                this.config.annularGrowth,\n            this.config.maxThickness\n        );\n    }\n\n    private emitDataPointHighlight(\n        renderSeries: IRenderSeries<IRadialAccessors>,\n        data: any,\n        i: number,\n        rendererSubject: Subject<IRendererEventPayload>\n    ) {\n        const position: IPosition | undefined = this.getDataPointPosition(\n            renderSeries.dataSeries,\n            i,\n            renderSeries.scales\n        );\n\n        const dataPoint: IDataPoint = {\n            seriesId: renderSeries.dataSeries.id,\n            dataSeries: renderSeries.dataSeries,\n            index: i,\n            data: data,\n            position: position,\n        };\n\n        if (this.config.enableSeriesHighlighting) {\n            rendererSubject.next({\n                eventName: HIGHLIGHT_SERIES_EVENT,\n                data: dataPoint,\n            });\n        }\n\n        if (this.config.enableDataPointHighlighting) {\n            rendererSubject.next({\n                eventName: HIGHLIGHT_DATA_POINT_EVENT,\n                data: dataPoint,\n            });\n        }\n\n        // we're emitting this event manually, because it's not triggered by mouse interactive area in this case\n        rendererSubject.next({\n            eventName: INTERACTION_DATA_POINTS_EVENT,\n            data: {\n                interactionType: InteractionType.MouseMove,\n                dataPoints: {\n                    [renderSeries.dataSeries.id]: dataPoint,\n                },\n            },\n        });\n    }\n}\n"]}