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Work with structures#

Use this topic after you have opened or loaded a system and need to work with it safely. It covers the core document interactions that most other workflows depend on: selecting the right nodes, checking or changing properties, measuring geometry, and using history to recover from mistakes. Read it in order if you are new to SAMSON, or jump to the task you need.

Who this topic is for#

  • Users selecting atoms, residues, molecules, or other nodes
  • Users checking or editing properties in the Inspector
  • Users measuring distances, angles, or dihedrals
  • Users exploring structures safely with undo and redo

What you will be able to do afterward#

  • Select nodes with commands, editors, filters, or NSL
  • Inspect and adjust node properties
  • Create and save measurements
  • Move backward and forward through document history
  1. Selecting - Start here because selection is the basis for inspection, measurement, and most editing actions. Foundational.
  2. Inspecting - Continue here to check and edit properties of the nodes you selected. Foundational.
  3. Measuring - Read this when you need geometric checks or saved measurement labels. Task-focused.
  4. History: Undo and redo - Use this to understand how to move safely through document changes while you work. Task-focused.

Read this first#

Start with Selecting.

You can skip this for now if...#

  • You are not checking geometry yet, in which case you can skip Measuring
  • You only need a quick refresher and are not changing the document yet, in which case you can skip History: Undo and redo

Suggested paths#

Where to go next#

  • Build and edit - Continue here when you want to change structures after selecting and inspecting them.
  • Visualize and present - Go here when you want clearer views, color, labels, or presentation output.
  • Simulate and analyze - Continue here when your next step is modeling, trajectories, or analysis.