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Support for the Visio JavaScript API in SharePoint Modern Framework, and more

It was the last day of the MSIgnite conference today, and the video of the final presentation about Visio was worth staying for, even though some of it was content I knew about, and have mentioned in previous posts this week ( see Dive into the world of data-driven operation intelligence with Microsoft Visio, Excel and Power BI). However, there was some content I was particularly pleased to see, and that was about support for the Visio Online JavaScript API support in Modern SharePoint Framework. I have pulled out some of the key slides below, but check out the full session for more information.

The hardworking Microsoft Visio product development team have worked hard to almost match all of the functionality of the old server-side Visio services control, but they haven’t quite got everything. So I cheered when I hear that support for html overlays are in the roadmap to be supported! All I ask for now (almost) is layer control, and I will be very happy.
They also stated that they will be enabling all this functionality for non-SharePoint web sites in the future!
Go to http://aka.ms/voapireference got more details.

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Icons Sets and Data Bars in PowerBI Visio visual

I really enjoy linking data to Visio diagrams, either directly or using the Visio custom visual in Power BI. This visual has the ability to display PowerQuery data as text or color, but not as icons or data bars. These last two features are something that can be used natively in Visio, and automatically updated in Visio Online. I have previously urged Microsoft to add these abilities to the Visio custom visual in Power BI, but there is no sign of it appearing just yet. The custom visual actually removes any Data Graphics ( Text Callouts, Icon Sets, Data Bars or Color by Value) that may already exist in a Visio diagram when it is embedded into Power BI. This reduces the number of shapes in the visual (there is currently a low limit) and, in any case, the data should be displayed from Power BI.
I want to be able to display some data as icons and data bars within the Visio diagram, so what is the alternative? Fortunately, there is a way using text symbol characters and the wonderful Power Query formulas!

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Swapping Images in a Visio Shape

I often include images in Visio diagrams, and sometimes they are part of a group shape. There are times when I need to swap the image for another, and I want the correct width to height ratio for the new image to be applied, otherwise the image will be distorted. I recently realised that the Shape.ChangePicture() function in Visio actually returns this ratio which can then be applied to the shape cells so that the image is not distorted. Therefore I wrote some C# code (in LinqPad) to utilize this method to provide the option to change the image in a selected shape or sub-shape.

So, I wrote this function in C# to swap the image of the shape, and to apply the formulas to maintain its correct aspect ratio, even if the shape is subsequently resized.

ChangePicture
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Using JSON text in Visio shapes

I often create Visio masters with a fixed number of Shape Data rows, and sometimes I get requests to modify them because of changes in business needs. Well, my previous posts about Graph Databases got me thinking if it would be possible to embed JSON text in Visio shapes in some sort of meaningful way. Then the user could enter just attribute-value pairs at will, without the need for me to modify their master shape. Alternatively, the data could be inserted into the shape from a database, such as SQL server. So, in this article I discuss the suitability of JSON text in Visio shapes.

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Visio JavaScript API preview announced

Microsoft have just announced the availability of the new Visio JavaScript Api ( see Visio JavaScript APIs Preview). I presented this last week at the Artic SharePoint Challenge in Oslo where a number of developers took the opportunity to create data-linked Visio diagrams in Visio, and interact with them in SharePoint.

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Here is an abbreviated version of my presentation, explaining the process of creating these dashboards from linking Visio shapes to data, to embedding in web pages …

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Understanding Visio Connections

A reader recently asked if I could explain how to programmatically get the shapes connected to a shape in Visio. So, I thought I would have a go, because there are alternatives, depending upon which functions are used, and what parameters are passed to them. The following animated gif is rotating around the different types of selections that can be made from the lower Decision shape. Normally, two 2D shapes are connected together using a 1D shape. The 1D shape has a direction because it starts from “BeginX” and finishes at “EndX”. This is irrespective of an arrowheads that the user may have chosen to adorn the 1D connector with at either end.

multiSelect Children and Parents

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