This video provides an introductory tutorial to myVGL, a free viewer application designed for project files created with Volume Graphics software such as VG Studio Max, VG Studio, and VG Metrology.
The tutorial covers fundamental aspects of using myVGL, starting with methods for opening project files, including options to manage memory usage by adjusting data resolution or unloading gray value data. It then guides the user through the default interface, demonstrating navigation techniques within 2D and 3D views using mouse controls and the navigation cursor. Visualization adjustments via the rendering tool and histogram are explained. A significant portion focuses on accessing and utilizing project content, such as activating prepared bookmarks to quickly jump to points of interest, finding analysis results through analysis annotations, and exploring detailed analysis dialogues. The video also demonstrates how to view and create measurements, including checking tolerance status for coordinate measurements, and how to save images, movies, and generate comprehensive reports from the project data.
Navigating and Analyzing Data in myVGL: A Viewer Tutorial
0:00:10 Introduction to myVGL, the free viewer application for projects created with Volume Graphics software (VG Studio Max, VG Studio, VG Metrology).
0:00:26 Overview of topics covered: opening projects, user interface, analyses, measurements, and extracting information.
0:00:39 How to open a project: Use File > Open or drag and drop the .vgl file into the application.
0:00:51 Opening options: Choose "Open project" to include all analyses and measurements, or "Import datasets only". "Open project" is recommended most of the time.
01:08 Data loading options: The software shows required memory vs. available RAM, indicating if the project can be opened at full resolution.
01:41 Memory management: Reduce the resolution (combine voxels) or unload gray value data (if an advanced surface determination exists) to decrease required memory for large datasets. Analysis results remain unchanged regardless of loading resolution.
02:44 Default user interface: Displays three 2D views and one 3D view of the data.
02:57 Navigating 2D sections: Scroll with the mouse wheel or click and drag a plane in one view to see its location in others. A sliding bar also allows quick layer navigation.
03:29 Zooming: Hold the Control key and scroll the mouse wheel over a point of interest.
03:38 Synchronizing views: Activate the navigation cursor, then hold Control and click in any 2D or 3D view to bring all 2D views to that location.
04:04 Improving contrast: Select the volume object in the scene tree, use the Rendering tool and histogram to adjust the opacity curve, or apply presets like "Smart Contrast" or "Ramp".
05:05 Using bookmarks: Access bookmarks here to see preview images and descriptions. Double-click a bookmark to instantly adjust all views, selections, and rendering settings to saved points of interest, like porosity hotspots.
05:58 Analysis annotations: Point to specific analysis results (e.g., largest pores). Clicking an annotation in the scene tree makes the 2D views jump to that location. Annotations are available for all analyses.
06:30 Creating custom annotations: Select the analysis, activate the analysis annotation tool, and hold Control while clicking in a 2D or 3D view to add your own annotations.
06:50 Analysis dialogues: Double-click an analysis in the scene tree to open its dialogue, showing calculation settings, color scales, and specific results like a list of defects or directional variability.
07:38 Measurements: Create new measurements (e.g., distance) using the Instruments tool; they will snap to surfaces and appear under the volume in the scene tree.
07:57 Existing dimensions/tolerances: Found under the "Coordinate Measurement" section in the scene tree, organized by coordinate system. Clicking a feature jumps all views to its location. Color indicates if it is within or out of tolerance.
08:27 Filtering features: Use the double arrows to filter the scene tree, for example, to show only features that are out of tolerance.
08:41 Coordinate Measurement overview: Double-click the section to view a table of all features and geometry elements.
08:59 Layouts: Change the window arrangement or maximize any 2D or 3D view.
09:19 Sharing results: Save images or movies using File > Save Image or Movie. The current visualization and layout affect the options.
09:53 Reporting: Use the Reporting tool to view finished reports or create new ones by selecting items in the scene tree.
10:21 Viewing and editing reports: Open the detailed report; switch to "Edit mode" to customize it by removing sections or modifying tables.