![magic screen magnification software inventor magic screen magnification software inventor](https://pyimagesearch.com/wp-content/uploads/2015/03/single_image_example.png)
Note that regardless of this setting, zooming out always zooms out about the screen center (again, we found in testing this was the best behavior). The behavior we have now works very well. We found in both internal testing and with users that zooming about the exact location of the mouse cursor more often caused the desired point of focus to wander off the screen when scrolling the wheel multiple clicks. Sometimes people ask why we didn't just make it zoom up centered on the mouse location (instead of making it also move towards the center of the screen). Once you get used to this, it works really well for zooming in on something that is not currently in the center of the screen. The default behavior (with this option off) is that when you zoom in with the mouse wheel, it takes the point that your mouse is over and zooms it towards the screen center. Changes the behavior so that when using the mouse wheel, the view always zooms about the screen center (not many people want this, but some do). Zoom about screen center – under the View, Modify menu. Related Settings – the following are a couple of useful settings to change the behavior of the mouse manipulation: This is only available when you are viewing a camera view and are either editing the view or have turned off "Lock camera position except when editing" in the camera definition.
![magic screen magnification software inventor magic screen magnification software inventor](https://tmpgenc.pegasys-inc.com/en/images/tvmw7/TL_item_control.png)
Turn Camera – Ctrl-Alt keys and middle mouse button drag. If you have a wheel on your mouse (if not I highly recommend you get one with a wheel), then you can zoom in/out with the mouse wheel. Zoom In/Out – Shift key and middle mouse button drag. Note that in drawings, you do not need to hold down the Ctrl key both regular middle mouse button drag and Ctrl middle mouse button drag work (since you can't rotate in drawings). Pan – Ctrl key and middle mouse button drag. This rotates the view parallel to the screen about the model centroid. Roll View – Alt key and middle mouse button drag. Simply single click the entity with the middle mouse button and then click and drag the middle mouse button anywhere on the screen as you normally would to rotate it is basically a select action followed by a rotate action (the select action is just done with the middle mouse since you might also be in the process of doing a normal left mouse selection set). When describing this functionality, I've heard many people describe using double click to select the entity and rotate, but you don't have to try to time this so you select the entity and hold the mouse down on the second click (that is a hard manipulation for some to do). One limitation this function does not work while editing a sketch. It will rotate about that entity until you let go of the middle mouse button and then the entity is deselected. Rotate View about Entity – first, single click on a piece of geometry (face, plane, edge, vertex, sketch entity, etc.) with the middle mouse button and it will highlight in magenta and show a rotate cursor with a green line through it (as shown below). There used to be an option in the View, Modify menu to always rotate about the screen center which some users preferred since it never had the problem of the model flying off the screen, but once we implemented this new behavior of automatically calculating a rotation point for the "trouble cases", the option was no longer required. For models that were off the screen, this often caused to the model to rotate in a way that it would "fly off the screen". SolidWorks used to always rotate about the model centroid regardless of whether the whole model was on the screen or not. If not, SolidWorks uses an algorithm to automatically select a piece of geometry that is in the view and projects a point onto it to rotate about (the entity and rotation point are highlighted in magenta during the rotation). If the model is fully in view, SolidWorks rotates about the model centroid. This help topicalso outlines most of these methods pretty well. Here is an outline of all of the manipulations you can make with your mouse. This is perhaps the most popular form of model view manipulation since it doesn't require you to move your hand off of the mouse and in conjunction with a couple of keyboard "accelerators", can perform most of the common view manipulations. Maybe you will discover some methods you didn't know existed before. This blog post will attempt to put most (all?) of the methods into one document for reference and describe a bit of history as to why some commands work as they do. There are many different ways to manipulate the model view in SolidWorks.