Spire Mathtype export

[joekatana]

I'm using spire office v8.2.0 for .net (c#) win10 64bit
I want to export MathType out of a word document and/or powerpoint documents.
So far my best attempts find that MathType equations appear as text="" textranges in powerpoint and (vector) images in word.
Within word and powerpoint I can copy-paste it like text. From within spire I can't access any indication of the equation's content.

I can't do any of the following and any of these would help:
-export equations (as text) from either powerpoint or word using spire
-distinguish textranges that are actually MathType in powerpoint from empty text ranges
-save MathType textranges as images in powerpoint
If you know how please post some code demonstrating it, I can't figure it out.
Thanks.

[Triste.Dai]

Hi,


Thanks for your inquiry.
Our Spire.DOC will parse the mathtype equations into DocOleObject, it is unable to obtain the text. If you need to convert the equation into an image format, you can use the following code as a reference:

Code: Select all

            Document doc = new Document();
            doc.LoadFromFile("test.docx");

            int i = 0;
            foreach (Spire.Doc.Section section in doc.Sections)
            {
                foreach (DocumentObject obj in section.Body.ChildObjects)
                {
                    if (obj is Paragraph)
                    {
                        Paragraph para = obj as Paragraph;
                        foreach (DocumentObject cobj in para.ChildObjects)
                        {
                            if (cobj is DocOleObject)
                            {
                                //Find DocOleObject object and save it
                                DocOleObject ole = cobj as DocOleObject;
                                ole.OlePicture.Image.Save(string.Format("image-{0}.png",i++));
                            }
                        }
                    }
                }
            }


If the code does not meet your requirement or you have any other questions, just feel free to contact us.

Best regards,
Triste
E-iceblue support team

[joekatana]

Thanks. What about in powerpoint? Is there any way to tell the difference between MathType and regular text?

[Triste.Dai]

Hi,

Thanks for your inquiry.
Please see the following code for reference.

Code: Select all

            Presentation ppt = new Presentation();
            ppt.LoadFromFile(@"test.pptx");
            int i = 0;
            foreach (ISlide slide in ppt.Slides)
            {
                foreach (IShape shape in slide.Shapes)
                {
                    if (shape is IOleObject)
                    {
                        shape.SaveAsImage().Save(string.Format("test-{0}.png",i), ImageFormat.Png);
                    }
                }
            }
            ppt.Dispose();


For your second question, the math type equations will be parsed into ole Object, the regular text will be parsed into TextRange object. Please refer to the following code.

Code: Select all

            Document doc = new Document();
            doc.LoadFromFile(@"test.docx");

            int i = 0;
            foreach (Spire.Doc.Section section in doc.Sections)
            {
                foreach (DocumentObject obj in section.Body.ChildObjects)
                {
                    if (obj is Paragraph)
                    {
                        Paragraph para = obj as Paragraph;
                        foreach (DocumentObject cobj in para.ChildObjects)
                        {
                            if (cobj is DocOleObject)
                            {
                                //Find DocOleObject object and save it
                                DocOleObject ole = cobj as DocOleObject;
                                ole.OlePicture.Image.Save(string.Format("image-{0}.png", i++));
                            }
                            if (cobj is Spire.Doc.Fields.TextRange)
                            {
                                Spire.Doc.Fields.TextRange range = cobj as Spire.Doc.Fields.TextRange;
                                string text =range.Text;
                                // do something
                            }
                        }
                    }
                }
            }


If you have any further questions, just feel free to contact us.

Best regards,
Triste
E-iceblue support team