Articles published in my blog
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Standardization of ontologies
by Kore Nordmann at Thu, 14 May 2009 10:46:31 +0200
For university I "had" to write a paper about the standardization of ontologies, focussing on the historic evolution, the associated technologies and the theoretical background of logics. Here it is... read more…
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Current state of semantic web
by Kore Nordmann at Fri, 31 Oct 2008 16:31:52 +0100
For university I have been asked to summarize the current state of the Semantic Web. Existing and emerging technologies. There was a quite tight limitation on the amount of content, but it resulted in a good overview on this topic with a slight focus on computer science. read more…
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CouchDB - A use case
by Kore Nordmann at Sat, 06 Dec 2008 10:12:07 +0100
This article tries to give you an overview on how CouchDB can be used to map data to a data storage and how it is completely different from relational databases. I try to introduce the basic concepts and show an advanced use case. read more…
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PHP charset/encoding FAQ
by Kore Nordmann at Tue, 13 Oct 2009 17:51:32 +0200
This is list of frequently asked questions about charsets and encodings within the PHP ecosystem. It also answers some general charset and encoding questions, as it answers HTTP related questions. If you know about other related common questions feel free to send it to one of the authors. read more…
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Image creation with PHP - Image Tools
by Kore Nordmann at Wed, 12 Dec 2007 18:37:02 +0100
There are several ways to create images or graphics with PHP. First there are some well known extensions, like ext/GD, or perhaps ext/ming everybody immediately remembers, when it comes to graphics generation. But there are several structural differences not in between the avaliable libraries, but also between the image formats you can create. This article series will give you some insight on the formats and libraries, and then shows how an abstraction layer could be build. This sixth part of the article finally covers additional tool classes which will proof helpful during image creation. read more…
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Image creation with PHP - Text rendering
by Kore Nordmann at Wed, 12 Dec 2007 18:37:02 +0100
There are several ways to create images or graphics with PHP. First there are some well known extensions, like ext/GD, or perhaps ext/ming everybody immediately remembers, when it comes to graphics generation. But there are several structural differences not in between the avaliable libraries, but also between the image formats you can create. This article series will give you some insight on the formats and libraries, and then shows how an abstraction layer could be build. This fifth part of the article covers the complex topic of text rendering with all the backends. read more…
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Image creation with PHP - Integrating bitmaps
by Kore Nordmann at Wed, 12 Dec 2007 18:37:02 +0100
There are several ways to create images or graphics with PHP. First there are some well known extensions, like ext/GD, or perhaps ext/ming everybody immediately remembers, when it comes to graphics generation. But there are several structural differences not in between the avaliable libraries, but also between the image formats you can create. This article series will give you some insight on the formats and libraries, and then shows how an abstraction layer could be build. This fourth part of this article, which describes the integration of bitmaps with the various backends. read more…
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Image creation with PHP - Gradient rendering
by Kore Nordmann at Wed, 12 Dec 2007 18:37:02 +0100
There are several ways to create images or graphics with PHP. First there are some well known extensions, like ext/GD, or perhaps ext/ming everybody immediately remembers, when it comes to graphics generation. But there are several structural differences not in between the avaliable libraries, but also between the image formats you can create. This article series will give you some insight on the formats and libraries, and then shows how an abstraction layer could be build. This third part of this article makes the images a bit more colorful, by providing support for gradients in the graphics. read more…
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Image creation with PHP - A first shape
by Kore Nordmann at Wed, 12 Dec 2007 18:37:02 +0100
There are several ways to create images or graphics with PHP. First there are some well known extensions, like ext/GD, or perhaps ext/ming everybody immediately remembers, when it comes to graphics generation. But there are several structural differences not in between the avaliable libraries, but also between the image formats you can create. This article series will give you some insight on the formats and libraries, and then shows how an abstraction layer could be build. This second part describes the generation of shapes and the basic drawing context. read more…
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Image creation with PHP - Formats & Libraries
by Kore Nordmann at Wed, 12 Dec 2007 18:37:02 +0100
There are several ways to create images or graphics with PHP. First there are some well known extensions, like ext/GD, or perhaps ext/ming everybody immediately remembers, when it comes to graphics generation. But there are several structural differences not in between the avaliable libraries, but also between the image formats you can create. This article series will give you some insight on the formats and libraries, and then shows how an abstraction layer could be build. This first part of this article describes the various image formats and backends. read more…
