Showing posts with label Case. Show all posts
Showing posts with label Case. Show all posts

Tuesday, November 7, 2017

Case Study: why OpenStreetMap was chosen for a Romanian Online Project

Case Study: why OpenStreetMap was chosen for a Romanian Online Project

What is OpenStreetMap?

OpenStreetMap (OSM) is a free, editable map of the entire world, a collaborative project meant to provide free geographic data, such as street maps, to anyone. The OSM data is contributed by community members who use a variety of surveying methods, most utilizing GPS technology.


The project was started because not all geographical data is free in every part of the world. Historically, the street map data of the world has been owned by two companies, Tele Atlas and Navteq. Currently, both Yahoo and Bing still license their map data from Navteq. Up until August 2009, Google also licensed their data from Tele Atlas. Google and Tele Atlas entered into a five-year agreement just a year earlier whereby Tele Atlas provided Google with their data in exchange for a licensing fee and access to updates made by the Google community. In an effort to break the duopoly, Google ended the agreement early in the US and now assimilates data from multiple providers as well as its user community.


While Google has been able to circumvent the hold of the duopoly, this does not improve the lot for the rest of us.  We now have one more source to choose from, but are still beholden to three providers instead of two.  Any business that collects data from any source originating from Tele Atlas, Navteq, or Google is creating a "derived work," that now retains the copyright conditions of the original. That means license fees, contractual restrictions, and so on. OSM is trying to break the hold these companies have on map data by building an alternative data source that is free of licensing restrictions.


Why does Urbo.ro uses OSM?

Urbo.ro is a location-based, community oriented business directory in Romania. When developing Urbo.ro, there was a choice to be made on what mapping service to use. The map is an important feature of the site and therefore the choice on map providers was critical. The considerations in choosing a mapping provider were as follows:
•  Mapping coverage of Romania
•  Accuracy of the street data
•  Ability to contribute and correct the data


Mapping coverage of Romania


A year ago, when we started developing the map, in terms of accuracy and coverage of Romania, OSM was far superior to Google Maps.  Google's coverage of Bucharest was inadequate and their street maps in other cities was virtually nonexistent. However, over the course of the last year, Google Maps' improvement has been remarkable.  As you can see from the screenshots below, their coverage is now roughly equal to that of OSM.


This is an OpenStreetMap view of Bucharest:



This is a view of the same area viewed using Google Maps:



 


 


 


 


 


 


 


Accuracy of the street data


At the start of our map development, we also performed extensive research on the accuracy of the street map data.  Google Maps previously relied on Europa Technologies for their map data in Romania.  Google's street map was not only incomplete, but grossly wrong at times -- we used two methods to check the accuracy:  (1) we tested several positions using GPS, and (2) we marked points on the satellite imagery and switched between the map layers to determine which layers aligned to the satellite.  OSM data, on the other hand, easily passed the accuracy test.  The precision of the OSM data may surprise many, given that it's a freely editable community map.  But the contributors that take the time to edit the map are dedicated map enthusiast, which we have found leads to higher quality.


Our recent tests once again show remarkable improvement in Google's map data.  As these screenshots demonstrate, Google's accuracy is once again on par with OSM.



Ability to contribute and correct the data


OSM, while superior to other maps in Romania, is not perfect. The ability to correct the map data was a key factor in our decision to work with OSM.  Not only was OSM better in Romania at the time of our development, but it will only get better over time.


The Use of OpenLayers on Urbo.ro

Despite our strong support for OSM, we realize that other map providers may provide other advantages for users. For this reason, we built the Urbo map using OpenLayers, which gives users the ability to switch between map layers.


OpenLayers helps developers put a dynamic map in any web page, by displaying map tiles and markers that can be loaded from any source. OpenLayers is completely free, and released under a BSD-style License. OpenLayers supports a wide range of map types, with new layers being added all the time. Currently, the module supports OSM, Google Maps, Yahoo Maps, Virtual Earth, TMS, WMS, CloudMade, and XYZ map.


Here you have an example of how we integrated the module on the Urbo.ro "Harta" page. We chose to integrate OSM, Google Maps and Google Satellite. Users can switch maps using the buttons in the top right:



 


 


 


 


 


 


 


 


Adulmec.ro is a big supporter of open technologies. We strive not only to build our own projects on these open technologies, like Drupal and Solr, but also to give something back to the community. We believe open technologies facilitate more innovation and accelerate the advancement of technology worldwide.



Read more here: http://corporate.adulmec.ro/blog/2010/urboro-openstreetmap-fan




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Saturday, July 29, 2017

SEO: Google PR is Case Sensitive

SEO: Google PR is Case Sensitive

After a little digging up, I found enough evidence to believe that...


Google searches are never case sensitive - as we already knew.
Google PR is case sensitive - as I suspected, according to web standards, URLs are case sensitive. Google and other search engines follow this standard.

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There have been a few reported cases of the same pages being in Google's index 2 or more times because they were linked to with different cases (ie.: /ABC.htm, /abc.htm, /Abc.htm) - see this post.

The root of the problem, as you may have guessed, is Microsoft's ignorance towards web standards. Microsoft servers are set up in opposition to the web standard on case sensitivity in which /ABC.htm is different from /abc.htm. IIS ignores the case different and gives control of the request to wrong file.

My site is on a Windows Server, how bad is the problem?
Well, it's not going to 'bring down the internet' as some lammers might suggest, but there are issues that need to be addressed. IIS's choice to ignore case sensitivity means search engines (which are case sensitive) will index the exact same content for different URLs. It's very unlikely a website would be


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penalized for this, but it can definitelly impair your website's ability to rank well. It makes it specially difficult for the duplicated page to rank well for the terms it targets.

This is only an issue if there are two or more links point to the same URL in a different case. You can avoid this problem by always using lowercase in your link tags, but you can't stop other websites linking into the same URL in capital letters - so something must be done on the server in order to deal with this issue.

How can I fix it?
I can almost picture you "URL Rewrite Junkies" jumping up and down with the solution on your hands, but as we all know, URL Rewrite is a feature only available to proper web-servers, nothing you'd expect to see in IIS.

A. Server Component (IIS alternative to URL Rewrite)
Not free, not easy to setup and can only be installed on your own server. The only upside is that this would work for all files/scripts/directories on the website.
An alternative for URL Rewrite in IIS - /" target="_blank">ISAPI Rewrite.

B. Script (and a little permanent redirection)
It's free, it's easy to setup and can be installed on any server, not just your own. The only downside is that you can only enforce case sensitiveness for requests that are handled by this script. This means static HTML pages, directories,



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Thursday, July 27, 2017

Digital Camera Case

Digital Camera Case
Digital camera case provide great defend or protection to your digital camera. The digital camera case is available in variety of designs, styles, and colors in market. You can find the plenty of options for digital camera case; all need is just to select the best one for your digital camera. Some companies offer you to get free digital camera case with your digital camera. And they make the set of digital camera and usb with free digital camera case. Case is an essential item for the protection of camera, in which you store the moments of love, fun and joys of your life with your beloved family and friends.
Best Material of Digital Camera Case

The variety of material is used to make digital camera case, each has its own attributes and qualities but the best material of digital camera case is leather, which is enough durable. The prices of the digital camera cases never matter over the color of case but on the material and style of case. Best leather is used in digital camera case may increase the price of case because leather is more durable than the other materials. The great thing about the leather camera case is that it is really very soft and provides the interior soft touch to the whole body of camera. If it happens to fall down by your hand then no matter the exterior leather coating of case will safe your camera from scratches.
How to Find the Best Digital Camera Case?

Mostly companies provide digital camera case with their digital camera, but if they do not offer you the digital camera case then its not a big deal you just have to browse the internet and see the variety of digital camera case of different styles, colors, styles and etc. From there you can choose the best digital camera case and can buy easily through online shopping. And you can gift the best and affordable digital camera case to your beloved family member and friends but you must know whether they have already a digital camera case or not.
The Best Digital Camera Case

Usually there are a lots of digital camera case but the best camera case are only produced by the companies like Sony produces their own digital camera case with their cameras, similarly Apple company produces their own digital camera case with their camera. Some companies offer you free camera case with their digital camera. And they provide same color of digital camera case of digital camera


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