Convert Chart to Image for Japanese Region with Node.js via C++

In this topic, we will show you how to set the Japanese region for a chart.

Define an Inherited Class

In the first step, you need to define a class “ChartJapaneseSettings” that inherits from ChartGlobalizationSettings.
Then, by rewriting the related functions, you can set the text of the chart elements in your own language.
Code example:

const AsposeCells = require("aspose.cells.node");

class ChartJapaneseSettings extends AsposeCells.ChartGlobalizationSettings {
  getAxisTitleName() {
    return "軸タイトル";
  }

  getAxisUnitName(type) {
    switch (type) {
      case AsposeCells.DisplayUnitType.None:
        return '';
      case AsposeCells.DisplayUnitType.Hundreds:
        return "百";
      case AsposeCells.DisplayUnitType.Thousands:
        return "千";
      case AsposeCells.DisplayUnitType.TenThousands:
        return "万";
      case AsposeCells.DisplayUnitType.HundredThousands:
        return "10万";
      case AsposeCells.DisplayUnitType.Millions:
        return "百万";
      case AsposeCells.DisplayUnitType.TenMillions:
        return "千万";
      case AsposeCells.DisplayUnitType.HundredMillions:
        return "億";
      case AsposeCells.DisplayUnitType.Billions:
        return "10億";
      case AsposeCells.DisplayUnitType.Trillions:
        return "兆";
      default:
        return '';
    }
  }

  getChartTitleName() {
    return "グラフ タイトル";
  }

  getLegendDecreaseName() {
    return "削減";
  }

  getLegendIncreaseName() {
    return "ぞうか";
  }

  getLegendTotalName() {
    return "すべての";
  }

  getOtherName() {
    return "その他";
  }

  getSeriesName() {
    return "シリーズ";
  }
}

Configure Japanese Settings for Chart

In this step, you will use the class “ChartJapaneseSettings” you defined in the previous step.
Code example:

const { Workbook } = require('aspose.cells');

let wb = new Workbook("Japanese.xls");
wb.settings.globalizationSettings.chartSettings = new ChartJapaneseSettings();
let chart0 = wb.worksheets[0].charts[0];
chart0.toImage("Output.png");

Then you can see the effect in the output image. The elements in the chart will be rendered according to your settings.

Conclusion

In this example, if you do not set the Japanese region for a chart, the following chart elements may be rendered in the default language, such as English.
After the above operation, you can obtain a chart picture with the Japanese region.

Supported Elements	Value in This Example	Default Value in the English Environment
Axis Title Name	軸タイトル	Axis Title
Axis Unit Name	百,千…	Hundreds, Thousands…
Chart Title Name	グラフ タイトル	Chart Title
Legend Increase Name	ぞうか	Increase
Legend Decrease Name	削減	Decrease
Legend Total Name	すべての	Total
Other Name	その他	Other
Series Name	シリーズ	Series