Reading Labels from a MapInfo Workspace File (MWS) - MapInfo_Pro - 2023

Label sources inherit the parent label layer visibility.

If there are multiple LabelSources for one feature layer without zoom enabled, then the top visible label layer is added.

If there are no visible label layers, then the top invisible label layer is added.

If there are multiple LabelSources with zoom ranges, then one label layer is chosen as a base label layer and all others are added as label overrides.

The logic for finding a base label is:

• When there are visible layers without zoom range, set the top visible layer without zoom range as a base layer
• Or else when there are visible layers with zoom range, set the last visible layer with zoom range as a base layer.
• Or else when there are no visible layers, set the top non-visible layer without a zoom range as the base layer
• Or else set the last non-visible layer with zoom range as the base layer.

Other label layers are added as label overrides when:

1. They have zoom range information and zoom ranges are enabled.
2. The ranges are not completely within any previous label override's zoom ranges.

If the range intersects (but not completely within) all previous override ranges, then the label override is added; in this case, ranges are modified to not override previous label overrides. If the range is wider on both ends, then two overrides are added instead of one.

The base label zoom is the union of all override zoom ranges.

This is on the AutoLabel tab in the Workspace Manager.

The "Create labels automatically" option in the Workspace Manager maps to auto labels On/Off ("Label Auto On/Off" in MapBasic).

There is no direct mapping of the zoom range in MapInfo Pro, so this is ignored.

Visible custom labels are imported into MapInfo Pro. Only the custom labels that are visible are imported.