0
votes
1answer
64 views

Why does my zoomToExtent zoom to 0,0?

In this map I have added a line of code to make it zoom to the vector layer: map.zoomToExtent(vector_Layer.getDataExtent()); This zooms in to the maximum zoom at the point in the Gulf of Guinea ...
6
votes
1answer
190 views

Fast data representation on the vector layers

I have found an interesting article about how HTML5 supports representation on large datasets. Article can be found here. In the article it is said that HTML5 and feature simplification can ...
3
votes
2answers
546 views

How to speed up the process of vector data visualization for a web application

I have a GIS web application and vector data that is going from the model to the web application. For developing the User Interface I am using JavaScript and OpenLayers. But sometimes the amount of ...
3
votes
1answer
344 views

Limit Zooming Geometry Features in OpenLayers

I draw flag feature on my map as follows: myVectorLayer = new OpenLayers.Layer.Vector("Flag Geometry", { renderers: renderer, isBaseLayer: true, projection: new OpenLayers.Projection("EPSG:900913"), ...