Function axisSelectionLayer

docs/app/js/sanddance-app.js:10116–10157

(presenter, specCapabilities, columns, stage, clickHandler, highlightColor, polygonZ)

var _sanddanceSpecs = require("@msrvida/sanddance-specs");
var _vegaDeckGl = require("@msrvida/vega-deck.gl");
function axisSelectionLayer(presenter, specCapabilities, columns, stage, clickHandler, highlightColor, polygonZ) {
    const polygons = [];
    const xRole = specCapabilities.roles.filter((r)=>r.role === "x")[0];
    if (xRole && xRole.axisSelection) stage.axes.x.filter((axis)=>axis.tickText.length).forEach((axis)=>{
        polygons.push.apply(polygons, axisSelectionPolygons(axis, false, xRole.axisSelection, columns.x));
    });
    const yRole = specCapabilities.roles.filter((r)=>r.role === "y")[0];
    if (yRole && yRole.axisSelection) stage.axes.y.filter((axis)=>axis.tickText.length).forEach((axis)=>{
        polygons.push.apply(polygons, axisSelectionPolygons(axis, true, yRole.axisSelection, columns.y));
    });
    if (stage.facets && columns.facet) polygons.push.apply(polygons, facetSelectionPolygons(stage.facets));
    //move polygons to Z
    polygons.forEach((datum)=>{
        datum.polygon.forEach((p)=>{
            p[2] = polygonZ;
        });
    });
    const onClick = (o, e)=>clickHandler(e.srcEvent, o.object.search);
    const polygonLayer = new _vegaDeckGl.base.layers.PolygonLayer({
        autoHighlight: true,
        coordinateSystem: _vegaDeckGl.base.deck.COORDINATE_SYSTEM.CARTESIAN,
        data: polygons,
        extruded: false,
        highlightColor: _vegaDeckGl.util.colorFromString(highlightColor),
        id: "selections",
        onHover: (o, e)=>{
            if (o.index === -1) presenter.deckgl.interactiveState.onAxisSelection = false;
            else presenter.deckgl.interactiveState.onAxisSelection = true;
        },
        onClick,
        getElevation: ()=>0,
        getFillColor: ()=>[
                0,
                0,
                0,
                0
            ],
        pickable: true,
        stroked: false
    });
    return polygonLayer;
}
function axisSelectionPolygons(axis, vertical, axisSelectionType, column) {
    const polygons = [];
    const size = 50;