Contents
How to reproject geometries in vector layers OpenLayers 3?
Reprojecting geometries in vector layers | OpenLayers 3 Beginner’s Guide Introduction 1. Getting Started with OpenLayers 1.1. Creating your first map 2. Key Concepts in OpenLayers 2.1. Creating a map 2.2.
How to create a map in OpenLayers 3?
1. Getting Started with OpenLayers 1.1. Creating your first map 2. Key Concepts in OpenLayers 2.1. Creating a map 2.2. Overlaying information 2.3. Using bindTo 3. Charting the Map Class 3.1.
When to use a centroid in OL3 geometry?
OL3 geometry uses a square to represent a circle so its centroid is trivial. Thank you for the explanation. My use was definitely not kms. I was going to use it for areas of 10-20 square meters.
How to make a rectangle export to GeoJSON?
Using ol.interaction.DragRotateAndZoom 8.11. Making rectangle export to GeoJSON with ol.interaction.DragBox 9. Taking Control of Controls 9.1. Starting with the default controls 9.2. Changing the default attribution styles
What are the different types of projection codes?
Using different projection codes 7.2. Using custom projection with WMS sources 7.3. Using custom projection without Proj4js 7.4. Reprojecting geometries in vector layers 8. Interacting with your Map 8.1.
How does OpenLayers work with raster data?
OpenLayers has an ability to display raster data from WMS, WMTS, static images and many other sources in a different coordinate system than delivered from the server. Transformation of the map projections of the image happens directly in a web browser.
When to pass reprojectionerrorthreshold option in OpenLayers?
In case a different threshold needs to be defined for different sources, the reprojectionErrorThreshold option can be passed when constructing the tile image source. The reprojection algorithm uses inverse transformation (from view projection to data projection ).