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leaflet-draw-rotate
Advanced tools
Readme
ALPHA leaflet plugin - adds rotate functionality to the Leaflet.Draw plugin by binding it with a custom version of the Leaflet.Path.Transform plugin.
// import peer dependencies
import 'leaflet';
import 'leaflet-draw';
// import plugin, then rotate bindings for each required geomtry type
import 'leaflet-draw-rotate';
import '/path/to/dist/Edit.Rectangle.Rotate.js';
// optional - configure transform options
L.Edit.Rectangle.prototype.setOptions({ uniformScaling: false });
// init leaflet-draw.. (see demo for detailed example)
Options should be applied via the edit handler's prototype setOptions
function (see above example).
options.handlerOptions
- <Path_options> - edge markers optionsoptions.boundsOptions
- <Polyline_options> - bounding rectangle optionsoptions.rotateHandleOptions
- <Polyline_options> - rotation handle line stylesoptions.handleLength
- Int - Length of the rotation handle in pixels. Defaults to 20.options.rotation
- Boolean - Enable/disable rotation. Default true
options.scaling
- Boolean - Enable/disable scaling. Default true
options.uniformScaling
- Boolean - Use uniform scaling (maintain aspect ratio). Default true
options.scaleRounding
- Int - Decimal rounding value to use when matching non-uniform drag handles (can use this if you encounter #5). Default 4
Following events are fired on the transformed layer
rotatestart
, rotate
, rotateend
- { rotation: <Radians> }
scalestart
, scale
, scaleend
- { scale: <L.Point> }
transformstart
, transform
, transformed
- { rotation: ..., scale: ..., matrix: <L.Matrix> }
If you have changed the geometry of the transformed layer and want the tool to reflect the changes, use:
// you have changed the geometry here
layer.setLatLngs([...]);
// and want to update handlers:
layer.transform.reset();
npm install
npm run build
This plugin builds upon earlier work of @w8r (e.g. Leaflet.Path.Transform, Leaflet.Path.Drag), and also @kevinsamyn's work on non-skewing rectangle scaling/re-sizing.
CSIRO Open Source Software Licence Agreement (variation of the BSD / MIT License)
FAQs
Add rotate functionality to the Leaflet.Draw plugin
The npm package leaflet-draw-rotate receives a total of 45 weekly downloads. As such, leaflet-draw-rotate popularity was classified as not popular.
We found that leaflet-draw-rotate demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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