Image rendering issue of 3D Pie Chart in EMF format Word document

Aspose.Words Product Family
1

Hello.
We recently encountered an issue with rendering of 3D Pie Chart image in EMF format, inserted into Word. The image inserted into the document looks distorted at 100% magnification, only after magnification is increased to 110% or more, it appears fine.
Are there any options that can be used at the time of inserting the image, that would help with this?
Below is the simple program to illustrate the issue:
byte[] bytearray = null;

	try {
    	bytearray = IOUtils.toByteArray(new FileInputStream(new File(PIE_CHART_3D_EMF)));
    } catch (IOException e) {
        // Print and display the exceptions
        System.out.println(e);
    }

	// Load the sample Word file to insert EMF image into
	Document doc = new Document(EMPTY_DOC, new LoadOptions());
	DocumentBuilder builder = new DocumentBuilder(doc);
	builder.insertImage(bytearray);

	doc.save(UPDATED_DOC);

Attached are the zipped input image in EMF format and the output Word document.
Thank you.

PieChart3d.7z (25.1 KB)UpdatedDocument.docx (88.9 KB)

2

@oraspose Unfortunately this is how the provided EMF file is displayed. The same issue is observed when playing this metafile with GDI+. As a workaround, if you have control over the chart image creation, you could try to use different format. It may be SVG for a vector format or a bitmap. Also if you have access to the GDI+ you could rasterize the metafile to high enough size so the artifacts will not appear.

3

Can you please be more specific - what exactly is wrong with the EMF that was created from the Excel chart (attached) using Aspose.Cells API shape.toImage(Stream stream, ImageFormat imageFormat) .ChartPie3D_input_ExcelChart.png (46.9 KB)

4

@oraspose The chart 3D effects are emulated by large amount of solid color lines. There are about 3000 lines in the metafile. Apparently GDI+ and MS Word produces artifacts when displaying such metafiles on low resolutions.