This tutorial explains how to apply Gen or XForm parameters such as scale, material, and color to multiple OpenVSP components at once using the Group Modification window. Simply select multiple components by using Select All, ctrl + click, or click-and-drag to access this feature.
The Cross-Section Viewer window enables visualization of a normalized representation of the cross-section profile you have selected. In some cases, this is useful for verifying that the model representation on the screen is true to the underlying curve. This feature is also very useful for matching known cross-section profiles to your designed curves. Note that you can change the color of the cross-section line and also insert images into the XSec View background to closely match known sections or photos.
OpenVSP maintains uniqueness for all parameters in all components of every model. You can quickly view the details of every accessible parameter in your model by clicking on the Name of that parameter in the GUI box. For example, to view the Span parameter of a Wing component, click “Span” in the Sect tab. You can use the information shown to identify the Name, Group, Max/Min, etc. as well as Links and Advanced Links for that parameter. OpenVSP also allows you to quickly populate variable selection areas by dragging-and-dropping the variables. You only need to click and drag the variable name (button) to the variable selection or add region and then drop. VSP will either automatically select or add the parameter depending on where you drop. This feature is exceptionally useful for variable selection operations within Design Variables, Variable Presets, and Linking.
The component parameters can each be changed by dragging the parameter slider or by entering a value into the input field next to the parameter. OpenVSP version 3.20.0 or higher also includes a “Smart Input” feature which allows you to perform basic calculations within the input field.
The degenerate geometry representation of individual or groups of components can be previewed using the controls in the Geometry Browser. These representations are useful for checking the geometry types that feed into the various analysis tools.