グラフY軸の最小値設定に関して

【ご質問】
グラフY軸のプロパティを以下のように設定したところ、表示される最小値が０になってしまいます。
最小値に正の数値を設定するにはどのようにしたらよいのでしょうか。

　force-range? = true
　forced-min = 80
　forced-max = 200

【回答】
最小値に正の数値を設定するためには、上記設定に加えて
force-zero?をfalseに設定する必要があります。

詳細は以下のサンプルをご参照ください。

{curl 6.0,7.0,8.0 applet}
{curl-file-attributes character-encoding = “shift-jis”}

{import * from CURL.GUI.CHARTS}

{let records:RecordSet =
    {RecordSet
        {RecordFields
            {RecordField “Region”, domain = String},
            {RecordField “M1”, caption = “January”, domain = int},
            {RecordField “M2”, caption = “February”, domain = int},
            {RecordField “M3”, caption = “March”, domain = int}
        },
        {RecordData Region = “North”, M1 = 100, M2 = 140, M3 = 130 },
        {RecordData Region = “East”, M1 = 110, M2 = 140, M3 = 170},
        {RecordData Region = “South”, M1 = 140, M2 = 100, M3 = 130},
        {RecordData Region = “West”, M1 = 160, M2 = 190, M3 = 140}
    }
}
{let chart1:LayeredChart =
    {LayeredChart
        width = 10cm,
        height = 6cm,
        left-axis = {new {NumericDataSeriesAxis-of double},
                        force-range? = true,
                        forced-min = 80,
                        forced-max = 200,
                        {ChartDataSeries records, “M1”},
                        {ChartDataSeries records, “M2”},
                        {ChartDataSeries records, “M3”}
                    },
        {LineLayer
            {ChartDataSeries records, “M1”},
            {ChartDataSeries records, “M2”},
            {ChartDataSeries records, “M3”},
            x-axis-data = {ChartDataSeries records, “Region”}
        }
    }
}
{let chart2:LayeredChart =
    {LayeredChart
        width = 10cm,
        height = 6cm,
        left-axis = {new {NumericDataSeriesAxis-of double},
                        force-zero? = false,
                        force-range? = true,
                        forced-min = 80,
                        forced-max = 200,
                        {ChartDataSeries records, “M1”},
                        {ChartDataSeries records, “M2”},
                        {ChartDataSeries records, “M3”}
                    },
        {LineLayer
            {ChartDataSeries records, “M1”},
            {ChartDataSeries records, “M2”},
            {ChartDataSeries records, “M3”},
            x-axis-data = {ChartDataSeries records, “Region”}
        }
    }
}

{VBox
    {text “force-zero?”の設定が無い場合},
    chart1,
    {text “force-zero?=false”にした場合},
    chart2
}

詳細は、Curl開発者ガイドの
[グラフ]-[LayeredChart 軸]-[軸の範囲の制御]
の項と、APIリファレンスの
[CURL.GUI.CHARTS]-[NumericAxisMixin-of]
の項内のメソッド[set-forced-range]の項をご参照ください。

また以下のページもご参照ください。
http://developers.curlap.com/faq/48-faq-specification/863-y-max.html
http://developers.curlap.com/faq/48-faq-specification/418-y.html