70002255 Open and Save drawings as Base64 string data with web control

Summary

Open and Save drawings as Base64 string data with web control

Solution

Example open save string data streams ,br>

        //Overwrite the vdAfterOpenDocument which will be called when New command finished
        //Overwrite the vdAfterSaveDocument which will be called after the document data stream is created
        vdcanvas.vdAfterSaveDocument = testSaveDocument;
        vdcanvas.vdAfterOpenDocument = testopenDocument;
        vdcanvas.New();//call the New so the an empty document is selected and the testopenDocument will be called

function testopenDocument() {
    vdcanvas.vdAfterOpenDocument = null;
     //we create a layer and a line reference this layer
    vdcanvas.SetActiveLayer(vdcanvas.AddLayer('user'));
    vdcanvas.AddLine([0, 0, 0], [3, 3, 3]);
    //save the document and finally  the testSaveDocument
    vdcanvas.SaveDocument();
}
function testSaveDocument(saveData) {
    vdcanvas.vdAfterSaveDocument = null;
    //get the saveData.dataStream which is a data string in base64 format and select this document to the vdcanvas
    //note: if save this drawing to a file with extension .vds is exactly like the .vds files used by the SelectDocument
    vdcanvas.SelectDocumentBlob(saveData.dataStream, "test.vds");//the passed filename is used just to set a name for the saved document to vdcanvas.GetDocument().pathname property
    setTimeout(vdcanvas.redraw);
}

 

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