What are ROI Loading Data Options?

ROI Loading Data Options: Options to control the resolution, initial fetch speed, and memory usage for ROIs.

Feature	Current-Level Loading	Full ROI Loading
Definition	Loads the spatial data matching the current viewport's zoom/subsampling level.	Loads the spatial data at the highest available resolution (raw coordinates).
Fetch Speed	Faster initial load.	Slower initial load (especially for large coordinates).
Memory Usage	Lower browser memory consumption.	Higher browser memory consumption.
Best For	Large ROIs, initial explorations, or preventing browser crashes on resource-constrained systems.	Small ROIs, detailed local transcripts analyses, or preparing precise downstream data exports.
Large ROI Risk	Low.	High (could trigger browser memory limits or UI lag).

Related Pages

Manual Pages

• ROI Drawer

How-to Guides

• How to Create a ROI
• How to Load Existing ROI

FAQs

• How to choose ROI loading options?