Mapbox GL Draw Scale Mode

Implements a scale mode in GL Draw. Module is still in active development. See Mapbox GL Draw Scale Mode Example.

Note: Props go to Mapster, creator of mapbox-gl-draw-rotate-mode, which was used as starting point and guide in creating this plugin.

Installation

npm install mapbox-gl-draw-scale-mode

import ScaleMode from 'mapbox-gl-draw-scale-mode';

Usage

Ensure you are loading draw onto your map as a control before triggering changeMode.

var draw = new MapboxDraw(
  defaultMode: 'ScaleMode'
  modes: Object.assign(
    ScaleMode: ScaleMode
  }, MapboxDraw.modes)
});

map.addControl(draw);

/*
 After load, or on events, activate or deactivate scaling:
*/

draw.changeMode('ScaleMode');
draw.changeMode('simple_select');

Events

Mapbox GL Draw Scale Mode triggers the following events:

RotateMode.rotatestart = function(selectedFeature,originalCenter) {
   console.log('SCALESTART');
   console.log('feature: ',selectedFeature);
   console.log('center: ',originalCenter);
}

RotateMode.rotating = function(selectedFeature,originalCenter,lastMouseDown) {
   console.log('SCALING');
   console.log('feature: ',selectedFeature);
   console.log('center: ',originalCenter);
   console.log('lastMouseDown: ',lastMouseDown);
}

RotateMode.rotateend = function(selectedFeature) {
   console.log('SCALEEND');
   console.log('feature: ',selectedFeature);
}

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Copyright @2019 Andrei Gheorghiu

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