I want to use offline Map for my openLayers project , I am using openLayers 7 and a mapTiler file mbtiles and TileServer GL light for serving my map ,
I use this code
const raster = new TileLayer({
source: new XYZ({
url:
…
I have a problem to zoom the nearest possible from extent on a map with Postgis data.
I have try to zoom from geometry but always land in an other location.
In first place I call Postgis with this code
…
I was using Draw and Modify Features example of OpenLayers in the site https://openlayers.org/en/latest/examples/draw-and-modify-features.html
I was wondering if I could draw features with different styles ?
in other words I need to have two style…
I'm not even sure if this is possible but I am trying to change the color of a marker on an open layers 7 map. The marker is being added from an svg file using the following lines of code:
const marker = new ol.Feature({
geometry: new…
I am creating a webapp that allows user to create mulitple maps. On each map the user has the ability to add/remove a marker. They are then able to drag it into the appropriate location and/or change the size of the marker. For the most part the…
I saw an example of openlayer for preloading low resolution tiles (Preload.html)
My code snippet for preload around tile is as follows;
....
const myMap = new Map({
layers: [
new TileLayer({
preload: Infinity,
source:
I am trying to create a map using OpenLayers 7 that will allow the user to change the style of the marker being used. I can't seem to figure out how to change the src of the feature being used as my marker. I don't think there is a .setSrc() option…
Our application draws 3 geometries: centerLine, centerToEdgesLines, boundaryPolygon (in 1 geometry collection)
Is it possible to use Openlayers Draw interaction (LineString) to draw 3 Features instead ?
This is to make Modify interaction easier to…
I'm creating a webapp using openlayers (version 7.2) and I'm trying to figure out how to have a live output of the current center, zoom & rotation. I have found the 'movestart' and 'moveend' events however these both fire only once either at the…
I am using OpenLayers 7 and I have a dataset which contains a lot of geojson features which I need to mark on the map. To get an okayish performance I need to cluster them when zoomed out. This works all alright, but the problem is that the dataset…
I am specifying the coordinates of
[-122, 47], (in USA)
[147, -32] (in Australia)
The image it produces is:
I was under the false impression that OpenLayers would draw the shortest line between two coordinates.
What would I need to change so…
Currently I'm tasked with comparing Vector objects as they've changed over time based on the year a user selects.
I've been using Open Layers Swipe as a guide
https://openlayers.org/en/latest/examples/webgl-layer-swipe.html
I just realized this is…
I'm currently using this example in my application
https://openlayers.org/en/latest/examples/webgl-layer-swipe.html
which overlays the left side of the map with a lay that you can extend over your base map.
I need this exact functionality however…
I'm working with Openlayers and I've implemented the layer swipe control.
https://openlayers.org/en/latest/examples/webgl-layer-swipe.html
I would like to have this same functionality with a line extending vertically across the map. Something like…
I'm trying to follow an example from OpenLayers.
https://openlayers.org/en/latest/examples/layer-swipe.html
I've imported what I need and I'm working on implementing the example in my code but I'm running into an issue where the properties of the…
