Calibrated height data required

Import a physical height matrix or a complete regular XYZ export. A grayscale SEM/TEM photograph is not a calibrated height map. For matrix files, disable the header checkbox if every row is data.

Matrix scan extents cover the distance between the first and last sample centers. XYZ coordinates supply their own scan spacing. Maximum grid: 512 × 512. The ROI must contain at least 3 × 3 samples.

Analysis overview

Imported data worksheet

100-row pages show every imported row. Search affects the preview only. Blank/non-numeric measurement rows are reported or rejected according to the selected method.

Workflow, methods and limitations

1. Import data or load a labeled synthetic example.
2. Review the worksheet, header setting, columns and physical units.
3. Choose method controls and run the analysis.
4. Inspect numerical tables, plots, exclusions and method assumptions.
5. Export the settings with the results for reproducibility.

SurfaceLab supports complete, uniformly spaced height grids. It provides original/processed height maps, a 3D surface, areal height statistics Sa, Sq, Sp, Sv, Sz, Ssk and Sku, height histograms, a sample bearing curve, line-profile Ra/Rq/Rt, directional spectra and descriptive step comparison.

Statistics are mean-centered and are not certified ISO roughness parameters. There is no selectable cutoff separation into roughness/waviness. Plane subtraction and scan-row correction can remove true morphology. Sdr/developed area uses a cell-gradient approximation after converting lateral and height units; it depends on resolution.

Line spectra are Hann-window one-sided amplitude spectra, not 2D PSD. No tip deconvolution, full proprietary AFM format support, material segmentation or complete Gwyddion equivalence is claimed. Export AFM data as a numeric matrix/XYZ first.

References: Gwyddion statistical analysis and leveling documentation.

Uploaded measurements are processed locally. Native proprietary instrument files, PDF/image extraction and calibrated medical analysis are not supported. Excel formulas use stored values. Host over HTTP/HTTPS because computation uses workers. Reloading clears the session.