
Hello,
Welcome to the Microsoft Community Forum. Please accept our warmest regards and sincerest hope that all is well despite the situation you find yourself in.
In PowerPoint, when an image is inserted into a segment of a pie chart, it will resize and distort along with the segment when the chart values change. Unfortunately, there is no built-in feature to lock the position and scale of an image within a pie chart segment to prevent it from morphing or distorting when the chart values change.
One workaround you can try is to use animations to reveal the segments of the tyre image as the chart values change. This way, you can control how the image is revealed without it distorting. You can use animations like "Wipe" or "Fade" to gradually show different parts of the tyre image as the chart values change.
Alternatively, you can consider creating a custom animation using PowerPoint's animation features to simulate the effect of revealing different segments of the tyre image without distorting it. This may require more manual adjustments, but it can give you more control over how the image is displayed as the chart values change.
Hope this helps.
Best Regards,
Fordy B.
Microsoft Community Moderator