Scale Mode

You can handle Scale Mode for all layers on a map like this:

map.gm.enableMode('edit', 'scale');
map.gm.disableMode('edit', 'scale');
map.gm.toggleMode('edit', 'scale');
map.gm.isModeEnabled('edit', 'scale');

The following methods are available on map.gm:

Method	Returns	Description
enableMode('edit', 'scale')	-	Enables global Scale Mode.
disableMode('edit', 'scale')	-	Disables global Scale Mode.
toggleMode('edit', 'scale')	-	Toggles global Scale Mode.
isModeEnabled('edit', 'scale')	Boolean	Returns true if global Scale Mode is enabled. false when disabled.

The following events are available on a map instance:

Event	Params	Description	Output
gm:scalestart	event	Fired when a layer starts being scaled.	map, feature, shape
gm:scale	event	Fired when a layer is being scaled.	map, feature, shape
gm:scaleend	event	Fired when a layer stops being scaled.	map, feature, shape

The following events are available on a map instance:

Event	Params	Description	Output
gm:globalscalemodetoggled	event	Fired when Scale Mode is toggled.	enabled, map

You can also listen to specific Scale Mode events on the map instance like this:

map.on('gm:globalscalemodetoggled', (event) => {
  console.log(event);
});

Supported Features

Scale mode supports the following feature types:

• Polygons
• Rectangles
• Lines
• Circles

When scaling, the feature will maintain its proportions relative to its centroid point. For rectangles, the scaling operation preserves the rectangular shape while adjusting its size.

Live Scale Example

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