Clik here to view.
OpenLayers Cookbook is out !!!
I’m proud to announce it. My first work as author of a technical book sees the light. After some months of work (really hard work combined with my day to day job), finally the book is out: NOTE: You...
View ArticleClik here to view.
AnimatedCluster demo site updated to work with OpenLayers 2.12
Not an awesome post but for any interested in the AnimatedCluster strategy I have updated the demo site to work properly with OpenLayers 2.12. In version 2.12 symbolizer are richest than in 2.11 and...
View ArticleClik here to view.
Improved performance on the AnimatedCluster for OpenLayers
Yes, now I’m really proud to present the AnimatedCluster strategy for OpenLayers. Some time ago I created an AnimatedCluster strategy for OpenLayers that extends the basic Cluster strategy, animating...
View ArticleClik here to view.
OpenLayers presentation and OpenLayers Cookbook examples code update
A few months after the release of the OpenLayers Cookbook I have been working on a presentation about OpenLayers for @geoinquiets at Barcelona (BCN) that will be celebrated the next December 20th (see...
View ArticleClik here to view.
AnimatedCluster pan related bug… fixed !!!
If you regularly follow this blog and are web mapping developer that works with OpenLayers, (too much coincidences???) probably you know about the the Animated marker cluster strategy for OpenLayers I...
View ArticleClik here to view.
The OpenLayers fallen and Leaflet arise… sure???
I wrote this post some months ago, before I publish the OpenLayers Cookbook, but I never published it thinking it could start a flame war instead a constructive thread. Today, after a twitter...
View ArticleThe book of OpenLayers3
I was thinking on it for a long time, but due a lack of free time I never started. Finally I can officially say I have start writing The book of OpenLayers3. More probably it will be a hard task,...
View ArticleSample chapter for The book of OpenLayers3 is out !!!
A couple of days ago I release the sample chapter for The book of OpenLayers3. I will appreciate all your feedback, comments, ideas, … The chapter is dedicated to two of the main concepts within the...
View ArticleThe book of OpenLayers3 is comming !!!
This week the beta2 version of OpenLayers3 has been released (see the OpenLayers3 is comming from Boundlessgeo blog) with great improvements on vector layers rendering and image manipulation....
View ArticleClik here to view.
Releasing code samples for The Book of OpenLayers 3
Writing a book is hard, requires constance and motivation and, more important, be strong to keep them both. Least but not last you need time. Time to see the source code and learn. Time to see the...
View ArticleOpenLayers, how compute the tile “name” under the mouse
I have working on a web page using OpenLayers which among others shows a OpenStreetMap layer. The issue is I need to move the mouse over the map and print on a label the tile name in the form of...
View ArticleClik here to view.
OpenLayers, create a checkboard layer to know the tile names using Google...
Pyramid tiles are used by many providers as a more efficient way (than WMS server) to provide images. The idea is simple, we have zoom levels and on every level we have NxN tiles of a specific size...
View ArticleClik here to view.
Announcing the release of The Book of OpenLayers 3
I just sent this words to all the people interested in the book via LeanPub and I would like to post it here too, hoping this message arrives to more people. The Book of OpenLayers3 is progressing...
View ArticleClik here to view.
The Book of OpenLayers 3, released !!!
Finally I completed most of the chapters I had thought for the book. Although two chapters remains to be written, I think the current content is extensive enough to help anybody interested to lean this...
View ArticleClik here to view.
The Book of OpenLayers 3, completed !!!
It was a long road but finally it comes true: The Book of OpenLayers 3 is finished. The chapter Controls and Interactions concludes the exploration of the main concepts related with OpenLayers version...
View ArticleClik here to view.
How the JavaScript heatmap implementation works?
A heatmap is a powerful way to visualise data. Given a matrix of data each value is represented by a color. The implementation of the heatmap algorithm is expensive in computation terms: for each...
View ArticleClik here to view.
Why OpenLayers3 does not render my GeoJSON?
OpenLayers3 offers the ol.source.GeoJSON class that allows to read data from a GeoJSON source (an URL, a JavaScript object or a text string). Maybe you, like me, has spent some time trying to...
View Article
