Contents
How to edit vector features in OpenLayers 2?
A basic full-screen map for mobile devices. A demonstration of using the ModifyFeature control to edit large geometries. Click the feature to select and then hover with the mouse over a segment you want to edit. A demonstration of the ModifyFeature control for editing vector features.
How to use mouseposition control in OpenLayers?
Use the MousePosition Control to display the coordinates of the cursor inside or outside the map div. Let OpenLayers send less tile requests to the server when wheel-zooming. A control for zooming to previous and next map extents.
How to draw a polygon from existing lonlat points?
OpenLayers – how do I draw a Polygon from existing lonLat points? I have in my database longitude-latitude verticies from user-defined polygons. My questions is: how do I recreate and display them on a map now? This is quite easy to do with the Google Maps API, but I can’t find any documentation or examples on how to do this with OpenLayers.
How does the client zoom work in OpenLayers?
This example demonstrates the “client zoom” functionality, where OpenLayers stretches the layer div when the resolution is not supported by that layer’s tile service. Attach zooming, panning, layer switcher, overview map, and permalink map controls to an OpenLayers window. Demonstrate use the CQL filter.
Why are my changes disappearing in OpenLayers 2?
Your changes are disappearing because the map is being redrawn when you toggle the visibility or change zoom level. You need to alter the style attribute of the feature itself so that when the redraw happens, it uses the updated style values. Thanks for contributing an answer to Geographic Information Systems Stack Exchange!
Which is an example of an OpenLayers overlay?
Demonstrate a change in the opacity for an overlay layer. Demonstrate a method for monitoring tile loading performance. Demonstrates the use of the LayerSwitcher outside of the OpenLayers window. Shows how to use MapBox tiles in an OpenLayers map. Demonstrates how to create MapGuide tiled and untiled layers.
Is there a way to rotate in OpenLayers?
This example shows a few features rotating. There is not yet a control built that provides a tool for rotating, but the geometry.rotate method can be accessed to rotate programmatically.