XYZShow

XYZShow is a small native Android molecular viewer for local XYZ files and Gaussian frequency outputs.

Features

• Open local .xyz, multi-frame .xyz, Gaussian .out, and Gaussian .log files.
• Render molecules with OpenGL ES 2.0.
• Switch between Space and Stick styles.
• Toggle black/white backgrounds.
• Reset the camera when the molecule is dragged out of view.
• For Gaussian frequency jobs, inspect modes with Prev / Next and animate the selected normal mode with Play.
• Use the Info button to show XYZ title details or Gaussian output metadata.

Gaussian Output Support

The parser reads text Gaussian .out / .log files and extracts:

• last Standard orientation block, falling back to last Input orientation
• harmonic Frequencies -- blocks
• reduced masses, force constants, IR intensities, and normal-mode displacement vectors
• termination state, route section, charge/multiplicity, last SCF energy, ZPE, frequency count, imaginary-mode count, and lowest frequency

This is visualization only. XYZShow does not validate whether a calculation is a real minimum, transition state, or IRC-confirmed result.

Build

Requirements:

• Android SDK with build tools
• Gradle 8.9 or compatible
• JDK 17 or newer

Build and verify the debug APK:

export ANDROID_HOME=/path/to/android/sdk
gradle assembleDebug

Or use the helper script:

export ANDROID_HOME=/path/to/android/sdk
./build_debug_apk.sh

The latest prebuilt debug APK from this snapshot is included at:

releases/XYZShow-debug-0.3.9.apk

Scope

Current version: 0.3.9.

PDB, mmCIF, checkpoint files, formatted checkpoint files, cube/volume data, cloud sync, and Play Store release packaging are not included in this snapshot.