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Replacing Images in Visio Shapes by Changing Data

I wrote an article last year about Swapping Images in a #Visio Shape manually, but I want to be able to do this whenever a Shape Data value changes. This is because I use I invariably use shapes linked to data. I also want to be able to have multiple images within a single grouped shape, and all of them changing when their referenced Shape Data values change. I believe that this will be more adaptable for a lot of scenarios than trying to repurpose Data Graphic Icon Sets ( see  Make Your Own Visio Data Graphic Icons Sets … automatically). I also discovered that the Shape.ChangePicture(…) function can just as easily work with urls as it can with network file paths, so even more possibilities are opened up! For example, the Visio Online JavaScript API has the ability to overlay an image (see ShapeView.addOverlay(…)).
So, I have created some macros to provide quick and easy selection, positioning and updating of images within a group shape.

personphotosbydata


I decided to present this article with VBA code rather than my preferred C# so that a stencil could be downloaded to provide instant usability, rather than having to install an add-in. It can be download from Image Utils.vssm, and should then be placed in to My Shapes folder, so that it becomes available to open in Visio. When it is opened, then the macros will need to be enabled.
There are just five public macros:

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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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Scroll to Capture Visio ShapeSheets with SnagIt

Anyone who develops with Visio faces the problem of viewing the formulas and values in an often difficult to navigate ShapeSheet window. I have been a SnagIt and Camtasia user for many years thanks to the generous free license I get from TechSmith as a Microsoft MVP. I have used both products extensively for my books, articles and videos, though I am not an expert in either product. Now, SnagIt has a panoramic scrolling capture feature that is great with ShapeSheets.
The unique smartness of Visio shapes comes from the ability to program the ShapeSheet behind every single shape. This is like an Excel worksheet divided into sections, and the display can switched between formulas and values. The Visio’s ShapeSheet window does have the ability to toggle the visibility of each section, but that is often not enough to get a complete picture of the formulas involved. The following example is the partial view of the ShapeSheet window for a simple shape.

ViewSections
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