Method build

docs/app/js/sanddance-app.js:5171–5368

()

        };
    }
    build() {
        const { names , props  } = this;
        const { globalScope , groupings , parentScope , sort  } = props;
        const { sizeSignals  } = parentScope;
        (0, _scope.addTransforms)(globalScope.data, {
            type: "joinaggregate",
            groupby: (0, _scope.getGroupBy)(groupings).map((0, _expr.safeFieldName)),
            ops: [
                "count"
            ],
            as: [
                names.count
            ]
        }, {
            type: "extent",
            field: names.count,
            signal: names.globalExtent
        }, Object.assign({
            type: "stack",
            groupby: (0, _scope.getGroupBy)(groupings).map((0, _expr.safeFieldName)),
            as: [
                names.stack0,
                names.stack1
            ]
        }, sort && {
            sort: {
                field: (0, _expr.safeFieldName)(sort.name),
                order: "ascending"
            }
        }));
        (0, _scope.addData)(globalScope.scope, {
            name: names.sequence,
            transform: [
                {
                    type: "sequence",
                    start: 1,
                    stop: {
                        signal: `max(sqrt(${names.globalExtent}[1]),2)`
                    }
                },
                {
                    type: "formula",
                    expr: "datum.data * datum.data",
                    as: "squared"
                },
                {
                    type: "formula",
                    expr: `ceil(${names.globalExtent}[1] / datum.squared)`,
                    as: "maxlevels"
                },
                {
                    type: "formula",
                    expr: `(${names.size} - (datum.data - 1) * datum.data) / datum.data`,
                    as: "side"
                },
                {
                    type: "formula",
                    expr: "datum.side * datum.maxlevels + datum.maxlevels - 1",