Precise measurements in molecular modeling are essential, whether you’re calculating bond lengths, angles, or torsions. With the Measure Editor in SAMSON, you can make these calculations more intuitive and efficient—saving valuable time in your modeling workflow.
The Problem: Tedious Measurements
Manually measuring distances, bond lengths, angles, or torsion angles between atoms in a molecular structure can be daunting. Often, molecular modelers grapple with tools that either disrupt the visualization or make the process cumbersome. SAMSON’s Measure Editor addresses these frustrations head-on, making measurements in your molecular design work seamless and user-friendly.
How to Get Started
Accessing SAMSON’s Measure Editor couldn’t be easier. On the left-side menu in the viewport, you’ll find the Measure editor icon (
). Alternatively, you can quickly invoke it using Ctrl/Cmd + M.
Measuring Made Simple
The Measure Editor excels in its simplicity and flexibility:
- Click on a bond to display its length.
- Select two atoms to calculate the distance between them.
- Select three atoms to measure the angle.
- Choose four atoms to determine the torsion (dihedral).
An outstanding feature is the ability to save measurements as labels within your document by pressing Enter. This functionality ensures your measurements are persistent, neatly labeled, and readily accessible whenever you revisit your project.
Temporary vs. Saved Measurements
If you don’t save your measurements as labels, they are treated as temporary. Temporary measurements are useful for on-the-fly analysis—they stay visible regardless of zoom but disappear once another measurement is taken. However, by saving measurements as labels, you retain all your hard work even after closing the session.
Additionally, when you save your project as a .sam or .samx file, any saved measurement labels are preserved, ensuring that your annotations are never lost.
Enhanced Usability in the Inspector
Want to customize your labels further? By selecting a saved measurement label and using the Inspector, you can:
- Access the exact atoms associated with the measurements.
- View additional measurements, like atom-atom distance projections on planes.
- Modify the font, color, or style of your measurement labels for better visualization.
Conclusion
The Measure Editor in SAMSON streamlines measurement tasks for molecular modelers. It combines convenience and precision, freeing you to focus on your molecular designs instead of tool navigation and manual calculations. To learn more about the Measure Editor and its capabilities, visit the official documentation page here.
SAMSON and all SAMSON Extensions are free for non-commercial use. Get SAMSON at https://www.samson-connect.net.