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How to style GeoJSON properties in OpenLayers?
I have modified the GeoJSON data to add some properties. Since you want to text declared in properties of feature the styling needs to be handled per feature basis. Create a ol.style.Text object and append that object to ol.Feature style property (one for the Feature styling and another for labels)
How to define styles for features in JSON file?
You have to define your own json structure and write a function to read that json and apply it to the layer. GeoExt 3 provides a very nice getSerializedLayers that encodes the data and the style in one json. To print a OL3 vector layer with MapFish, you need to pass the features and the style to MapFish.
How to print OL3 vector layer with MapFish?
To print a OL3 vector layer with MapFish, you need to pass the features and the style to MapFish. With GeoExt 3, you do: This is an example of the MapFish style syntax (including conditional styling).
How to load GeoJSON file in ol.layer.vector object?
Here’s a quick way of loading the geoJSON directly when creating the ol.layer.Vector object: url supports both remote and local files, the active line takes the geojson file from the same folder the page code is. Thanks for contributing an answer to Geographic Information Systems Stack Exchange! Please be sure to answer the question.
Can a GeoJSON be used to plot a point?
I have a GeoJson source and I’m able to plot Points at right coordinates on the map. I would like to draw also some text below the Point and the text is from a property.
How to load vector data in OpenLayers 3?
Perhaps this resource can help you to see different ways to load vector data: http://acanimal.github.io/thebookofopenlayers3/chapter03_03_vector_source.html FYI… I believe this has changed for OL3 V3.5.0, so gcarrillo’s answer would be:
Is there styling information in the GeoJSON standard?
As far as I can see there is nothing in the GeoJSON standard to store styling information, i.e. line colours, thicknesses etc. Am I missing something or is this just something that GeoJSON doesn’t deal with?
Is there a way to use GeoJSON for SVG?
These days there is Mapbox’s SimpleStyle. GeoJSON doesn’t deal with this. Any style information is going to depend on what the renderer is, Geojson CSS seams to target SVG but you also have Carto which targets mapnik, do remember that you can add extra fields to GeoJSON and it will still validate so none of these are invalid GeoJSON.
How to add a GeoJSON polygon layer to a file?
I’m trying to add a GeoJSON polygon layer from a file, give it a specific style and show the label (ToolTip) but couldn’t find a way to do it in a single function call .