Method getRepresentValue

src/component/visualMap/PiecewiseModel.ts:333–351

* @private * @param piece piece.value or piece.interval is required. * @return Can be Infinity or -Infinity

(piece: InnerVisualPiece)

     * @return  Can be Infinity or -Infinity
     */
    getRepresentValue(piece: InnerVisualPiece) {
        let representValue;
        if (this.isCategory()) {
            representValue = piece.value;
        }
        else {
            if (piece.value != null) {
                representValue = piece.value;
            }
            else {
                const pieceInterval = piece.interval || [];
                representValue = (pieceInterval[0] === -Infinity && pieceInterval[1] === Infinity)
                    ? 0
                    : (pieceInterval[0] + pieceInterval[1]) / 2;
            }
        }

        return representValue;
    }

    getVisualMeta(
        getColorVisual: (value: number, valueState: VisualState) => string