A mapbox gl draw mode to draw and edit bezier curves.
Demo page : https://mapbox-gl-draw-bezier-curve-demo.numix.fr
Use the Bezier tool to enter in Bezier Curve Draw mode :
Alt + Drag with Left click to create nodes with bezier handles.\ Hit Enter or Left click on the last node to finish the curve
Left mouse click to create nodes without handles (same as line string tool).\ Bezier Curves can have nodes with or without handles
Close a curve by connecting the last node to the first one :
Remove last added nodes with Right click
To edit a bezier curve, enter in direct mode.
Select a node, then drag with left click to move bezier handles :
Break bezier handle symmetry\ Select a node, then Alt + Drag with left click on a bezier handle :
Toggle node handles\ When bezier handles are visible, Alt + Left Click on the node will remove the handles :
When bezier handles are not visible Alt + Drag with left click on the node will show the handles :
Create new nodes in between\ In direct mode, click on a midpoint to create a new node inside the curve :
Delete node\ Select a node and hit Delete key
Combining / uncombining bezier curves is supported. In Direct mode there are some additional features :
If two bezier curves where previously combined, its possible to combine them into a single curve by selecting two vertices.
To do so :
Close a curve\ Close the curve by combining the first and last node in direct mode.
Open a curve\ When a curve is closed, open it by uncombining a single vertex. It will be splitted in two separate vertices allowing the curve to be open again.
Split curves\ Select vertices on a non closed curve to split it in multiple curves. The result will be a combined curve.\ Uncombine it in simple_select mode to be able to move each curve independently.
yarn add mapbox-gl-draw-bezier-curve-mode
import {
SimpleSelectModeBezierOverride,
DirectModeBezierOverride,
DrawBezierCurve,
customStyles,
} from 'mapbox-gl-draw-bezier-curve-mode';
var draw = new MapboxDraw({
displayControlsDefault: false,
userProperties: true,
modes: {
...MapboxDraw.modes,
simple_select: SimpleSelectModeBezierOverride,
direct_select: DirectModeBezierOverride,
draw_bezier_curve: DrawBezierCurve,
},
styles: customStyles
});
var map = new mapboxgl.Map({
container: 'map',
style: 'mapbox://styles/mapbox/streets-v8',
center: [2.45, 46.59],
zoom: 5.8
});
map.addControl(Draw)
See demo package for a full example.
More information about mapbox-gl-draw :
If you find an issue, please refer : https://github.com/Jeff-Numix/mapbox-gl-draw-bezier-curve-mode/issues
MIT © JeffSebrechts
Developed by Jeff Sebrechts