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Workspace settings

Workspace settings control spectral charts, material matching, wavelength filters, workflow navigation, and client-side performance.

Open Analysis from the right tool rail, select Spectral Signatures or a PCA tab, and click the Workspace settings gear. The dialog contains all settings sections, regardless of which analysis tab opened it.

Spectral signatures​

Spectral signatures controls the Spectral Signatures chart. Settings include:

  • Show chart symbols.
  • Show all selection signatures instead of only their average.
  • Show chart crosshair.
  • Show spectral ranges.
  • Limit reflectance values between 0-2.
  • Show a line between points.
  • Show true RGB lines or Show bands used to generate false color.
  • Show RGB bands only.

Material identification​

Material identification controls label and endmember matching:

  • Spectral libraries & chapters chooses all libraries, selected libraries, or selected chapters.
  • Preprocessing method chooses the preprocessing applied before matching spectra.

Start matching from a label or endmember context menu with Identify material.

Center wavelengths​

Center wavelengths controls wavelength filtering for material identification, endmember extraction, reference spectra, matched filters, and related spectral workflows.

You can set an image-specific filter for the active image and a workspace default for images without their own filter. Accepted formats are:

  • Band ranges such as 0-100, 150-200, 222.
  • Wavelength ranges in nanometers such as 400-700, 800-900.

Clear the image-specific filter to use the workspace setting.

Navigation contains Keep source in view between tabs. Enable it to preserve the current source's position while switching among Explore, Prepare, and Label. The preference is stored in the current browser for that workspace.

Performance​

Performance controls browser memory used by Spectral Explorer:

  • Tile cache size controls how many raster tiles can remain ready while you pan and zoom.
  • 3D cube memory controls the browser-memory budget for a built cube.

Use larger budgets only when the device has enough memory for the imagery and workflow.