Interaction and export

Navigation, selection, the menu, the accessible table, state, and PNG, SVG and CSV export.

@workspace/active-geo 0.4.0Developmentunreleased, in development in Foundationbaseline ce081dc3

Navigation#

Zoom and pan appear on demand (zoom.controls.visibility: 'on-demand'); the wheel zooms with a modifier key, so a page scrolls past a map. Keyboard shortcuts zoom and pan a focused map. zoom: false keeps the map still.

Selection and the menu#

selection: true (or {mode: 'multiple'}) lets the reader select objects by click or Space; onItemActivate fires on Enter or a click. Control the selection with selectedItems and onSelectionChange, or seed it with defaultSelectedItems. The menu (right click, long press, Shift+F10, or a menu button with contextMenu.trigger: 'button') groups your items, copy, the table, navigation and export.

The table#

The package's own accessible table: one tab per data layer plus "not on the map", search, pages of 100 rows and "Show on map". Open it from the menu, with table.defaultOpen, or from your code with the handle's revealInTable. It is also the data alternative for assistive technology.

State#

GeoMapHandle.getState() and applyState() capture and restore the view, the selection and the open table, with a result per field that says what was applied and why not.

Export#

exportAsPng, exportAsSvg and exportAsCsv({layerId}) on the handle, and the menu's export group, which runs the same operation. An image export carries the title, the legend and the attribution in an explicit theme; CSV writes one row per object with the measure values, their status and their unit.

The complete contract is in the API reference.