leaflet-geoman | powerful leaflet plugin for drawing and editing geometry | Map library
kandi X-RAY | leaflet-geoman Summary
kandi X-RAY | leaflet-geoman Summary
🍂🗺️ The most powerful leaflet plugin for drawing and editing geometry layers
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Top functions reviewed by kandi - BETA
- Creates a vector and returns the gradient .
- Prioritizes an object using a map
- Calculates the destination location for a heading .
- Initialize the PMarkerMarker
- Create a polygon polygon .
- Get the type of a Layer
- Flattens a polyline .
- Recursively convert latlngs to a map .
- Iterate over all latlng objects
- Get the intersection of two polygons .
leaflet-geoman Key Features
leaflet-geoman Examples and Code Snippets
Community Discussions
Trending Discussions on leaflet-geoman
QUESTION
I would like to draw different type of objects on a leaflet map with leaflet-geoman. I have a geojson layer not editable (agricol parcels) on overlay pane and I want to choose in a combobox (or buttons nethermind) the type of object to draw. It can be markers (for trees for example) or polyline (hedge...) or polygone (forest...) with different style (color, marker, tooltip...) : a forest is green, a tree with some icon, a hedge is brown, a forest is green fill.... Just after the end of drawing, I would like to show a popup to fill some information like the name of the object for example. I would like to put all these drawings in a layer that can be shown/hide with the pane control. I can have different layers according to the type of objects. At least, I would like to get all drawn objects (with extra informations...) and save it in geojson. Do you have an example for doing such thing ? I still didn't found anything. Thank's
Guen
...ANSWER
Answered 2021-Nov-13 at 10:33You can create different draw shapes to give them different color: customcontrols.js:
QUESTION
Suppose I have a geojson data:
...ANSWER
Answered 2021-Oct-19 at 06:58In the pm:edit
event you have the layer
in the payload. From it you can use toLatLngs()
:
QUESTION
I am trying to lazy load js drawing library Leaflet-Geoman
I am using webpack and the following code to load
...ANSWER
Answered 2021-Sep-18 at 10:11Geoman is adding it self to the map while initializing the map. This means if L.Map
is called before Geoman-Script is added to your site, Geoman will not be added to the map.
Then you need to call L.PM.reInitLayer(map)
.
QUESTION
I'm trying to get topological movement of lines with Leaflet-Geoman plugin using TopoJSON. There is a method called topojson.mesh
, which
Returns the GeoJSON MultiLineString geometry object representing the mesh for the specified object in the given topology. This is useful for rendering strokes in complicated objects efficiently, as edges that are shared by multiple features are only stroked once. If object is not specified, a mesh of the entire topology is returned.
Thanks to answer in this post, I've been able to return the MultiLineString using topojson.mesh
. Since Leaflet-Geoman supports MultiLineString I came across with idea that may be the returned mesh can be edited with Leaflet-Geoman while maintaining the topological properties.
But when I try to accomplish it, the returned MultiLineString get separated in to two parts when I try to edit it using geoman plugin. My question is if that it is really a mesh that returned from topojson.mesh
why the lines get seperated? Does that cause by geoman plugin? If that so, how can I get it done? Is there any way I can change the position of a node by dragging it while maintaining the topology?
I'll attach the code below
...ANSWER
Answered 2021-Jul-02 at 09:21For anyone who is looking for an answer to this type of question, I found a method using OpenLayers v6.5.0
. Their is an example for Draw and Modify Features, which can maintain the topology of lines and polygons.
Hope this helps some one :)
QUESTION
We have an Angular 11 application with strict mode turned on. It has these values in the compilerOptions
configurtation in tsconfig.json
:
ANSWER
Answered 2021-Mar-29 at 10:05Even though the @types are included in the leaflet and leaflet-geoman-free npm packages, you should be able to use the "as" keyword to tell TypeScript that an element is respectful of a certain interface / class.
QUESTION
I am listening to adding a vertex during "draw mode" as documented in docs https://github.com/geoman-io/leaflet-geoman#draw-mode
...ANSWER
Answered 2021-Feb-15 at 07:12Use the listener pm:create
and add to the new created layer the pm:edit
listener.
Then the event pm:edit
will be fired when a edit happens on the new layer.
QUESTION
I am trying to use leaflet-geoman library in a React project. I need to create a custom toolbar button that enables and disables global drag mode.
When toolbar button is clicked, map.pm.enableGlobalDragMode();
function enables global mode. When toolbar button is clicked again, map.pm.disableGlobalDragMode();
causes useCallback function afterClick
running in infinite loop.
useDraw.js
...ANSWER
Answered 2021-Jan-26 at 10:24The problem is, that when enableGlobalDragMode
( or disable) the Control of the original drag button is activated and this disables your custom button (because all other buttons are disabled, so that only one mode can be active).
I suggest to use the code from the enableGlobalDragMode
function instead of calling it, which cause a change on the controls:
QUESTION
I am trying to use geoman-io plugin (https://github.com/geoman-io/leaflet-geoman) in ngx-leaflet application. I've found this post: Integrate EasyButton, Geoman with ngx-leaflet , but the only solution provided in this post, that works for me, is to use bracket notation like that:
map["pm"]["addControls"]({position: 'topleft'});
I guess that's not the best way to do this. So my question is how to properly use geoman-io in ngx-leaflet?
When i tried exactly these steps, it doesn't work, because at map.pm.addControls({...})
i get error
Property 'pm' does not exist on type 'Map'
Steps:
npm i @geoman-io/leaflet-geoman-free
- Import geoman in the component
import '@geoman-io/leaflet-geoman-free';
- In angular.json in "build" section import geoman styles:
ANSWER
Answered 2020-Nov-16 at 07:37For me it works with the dirty type any:
QUESTION
I have a L.canvasMarker from leaflet-canvas-markers
When in editing mode with Leaflet-Geoman I can move the marker without any issue. But if I drag the map then try to drag the marker, it does not work (it has lost focus). To be able to drag it again I have to click it first, then I can drag it normally again.
My attempt of fixing this was to get the DOM element of the marker then fire focus() event. But I dont know how to get access to a leaflet layer DOM element.
my attempt of fixing below:
...ANSWER
Answered 2020-Nov-12 at 18:31This is a issue of leaflet v1.6.0 and only is not working in chrome.
When you update the leaflet to v1.7.1 it works.
Replace your leaflet.js cdn url with this: https://unpkg.com/leaflet@1.7.1/dist/leaflet.js
QUESTION
I'm using Leaflet and Leaflet-geoman in conjunction with wfs-t to create an editable map object. I have a class EditMap that has a leaflet map as a property. I'm trying to listen for the 'pm:create' event on this map for every class. Here is my code:
...ANSWER
Answered 2020-Sep-03 at 00:22In the wrong place
You're using a class so you could do:
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
Vulnerabilities
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Install leaflet-geoman
Just include leaflet-geoman.min.js right after Leaflet. It initializes itself. If you want certain layers to be ignored by Leaflet-Geoman, pass pmIgnore: true to their options when creating them. Example:.
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