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Sources and layers

Source and layer controls live in the source tree shown by the Explore, Prepare, and Label workflows. Each workflow shows a different part of the same workspace sources.

Add imagery to a workspace​

Use the entry point that matches the data:

  • In an empty workspace, click Import Data to upload local data and attach it to the workspace.
  • Open Sources to search Planetary Computer or configured STAC Catalogs, preview remote items, and add them to the workspace.

After data is attached, Spectral Explorer creates a source row and exposes the renderable layers available for that source.

Use source rows​

Source rows are the top-level items in the source tree.

  • Click a source to select it and open Inspector.
  • Double-click a source to focus the active canvas on it.
  • Right-click a source to open actions supported by its type and state.
  • Drag source rows to reorder them when the current view supports ordering.
  • In Inspect, use the source selector to set the reference source.

Depending on the source, its context menu can include Generate analysis, Generate inferences, Explore RGB, Open 3D cube, Open parent folder, export, retry, and removal actions.

Explore analysis layers​

Explore contains renderable analysis layers. These can include color composites, PCA rasters, band math, matched-filter, MTMF, RX, endmember, model-inference, and imported raster results.

Use the visibility controls beside a layer or result group to add or remove it from the active canvas. Right-click a layer for available actions such as Add to layers, Remove from layers, Rename layer, Send to top, Send to bottom, export, retry, or result removal. The exact actions depend on the layer type and state.

Prepare data layers and masks​

Prepare contains processing-oriented source data:

  • Data layers lists products such as raw, radiance, reflectance, emissivity, or temperature data. The selected product is used by analysis tools that ask for an image layer.
  • Masks lists source image masks. A mask can constrain processing and can also be shown as an overlay.

Inspect properties​

Select a source, layer, result group, mask, label, or remote-item preview, then open Inspector from the right tool rail.

For a layer, Inspector contains the display settings supported by that layer, such as opacity, color map, stretch, component mapping, class colors, statistics, and result metadata.

Create or recolor a composite​

To create an RGB or false-color composite, open Explore, expand the source's Analysis layers, and choose Color composite from Generate analysis layers. A source context menu can also expose Generate analysis.

To recolor an existing scalar layer, select it and use its display controls in Inspector. Continuous layers use color-map and range controls; classification layers use class colors when available.