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将图表导出为图像

您可以在 SpreadJS 中将图表导出为图像源。在工作表中插入图表后，可以使用 chart.toImageSrc() API 获取图像源。

使用代码

以下代码示例展示了如何将工作表上的形状对象保存为图像源。

// 添加柱状图。
// 准备图表数据。
sheet.setArray(0, 0, [
    ["", "Chrome", "FireFox", "IE", "Safari"],
    ["2020", 51, 34, 11, 27],
    ["2021", 23, 31, 73, 64],
    ["2022", 36, 24, 83, 89]
]);

// 添加图表。
let chart = sheet.charts.add('Chart1', GC.Spread.Sheets.Charts.ChartType.columnClustered, 100, 100, 500, 280, "A1:E4");

// 获取图表作为图像源。
let chartImageSrc = sheet.charts.all()[0].toImageSrc();

使用设计器

当您在 Spread Designer 中选择图表时，也可以通过点击“另存为图片”选项将其保存为图像。

以下是将图表保存为图像的步骤：

打开工作表
根据需要插入数据
插入图表
右键点击图表，然后点击“另存为图片”
选择要保存图像的位置。
命名文件并点击保存。

type=warning
注意：
目前，导出的文件格式为 PNG，文件名为默认对象名。例如，Chart 1
如果选择了多个图表对象，它们将一起导出，并且所有图表将默认导出为名为 SpreadShapes 的文件