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Creating Pseudo-3D Imagery with GIMP: Part 1

by Reynante Martinez | August 2009 | Open Source Web Development Web Graphics & Video

In this two part article series by Reynante Martinez, we will learn how to digitally sketch/draw your scenes, give them subtle color shifts, add fake lighting, and apply filter effects to further emulate how 3D does its job in a step by step process. We will start off from scratch and move on to create a realistic 3D scene with just some 2D tools.
We will discuss:

  • creating an appropriate canvas
  • layering
  • layer modes
  • layers as backups
  • selection tools
  • color transition and theory
  • gradients
  • filters
  • faking Depth of Field
  • faking reflections
  • simple post processing

 

Read Creating Pseudo-3D Imagery with GIMP: Part 1 in full

Web scraping with Python (Part 2)

by Javier Collado | August 2009 | Content Management Open Source

This article by Javier Collado expands the set of web scraping techniques shown in his previous article by looking closely into a more complex problem that cannot be solved with the tools that were explained there. For those who missed out on that article, here's the link. Web Scraping with Python

This article will show how to extract the desired information using the same three steps when the web page is not written directly using HTML, but is auto-generated using JavaScript to update the DOM tree.

Read Web scraping with Python (Part 2) in full

3D Vector Drawing and Text with Papervision3D: Part 2

by Jeff Winder Paul Tondeur | August 2009 | Open Source

In the previous part of the article by Jeff Winder and Paul Tondeur, we saw how to create a template class for the 3D text examples and add interactivity to 3D vector text and shapes. We also discussed about drawing vector shapes such as lines, circles, and rectangles. In this part, we will see how to draw lines with Lines3D and add interactivity to Lines3D lines.

Read 3D Vector Drawing and Text with Papervision3D: Part 2 in full

3D Vector Drawing and Text with Papervision3D: Part 1

by Jeff Winder Paul Tondeur | August 2009 | Open Source

Papervision3D features a set of classes that allow for drawing vector graphics such as simple shapes and text. The method names that are used for drawing shapes are similar to those of the Flash drawing API such as lineTo() and curveTo(). Creating 3D text is also fairly simple because of a couple of easy-to-use classes.

In this two-part article by Jeff Winder and Paul Tondeur, we will discuss the following:

  • Creating 3D vector text
  • Creating font files for use in Papervision3D
  • Drawing 3D vector shapes and lines
  • Adding interactivity to 3D vector text and shapes
Read 3D Vector Drawing and Text with Papervision3D: Part 1 in full

Simple process for PHP projects

by Samisa Abeysinghe | August 2009 | PHP

In this article by Samisa Abeysinghe, we will look into a process model that we can use as a starting point for the PHP projects that we are working on. The process is designed with the MVC framework based design model in mind. It is assumed that the workload is broken down based on the Model-View-Controller pattern, and team members are assigned to work on each layer based on that breakdown.

The process model clearly depicts how the separate concerns such as the data layer, the business layer, and the presentation layer can be worked on in parallel, and at the same time, how those separate concerns fit with each other to form the entire system. If you carefully evaluate this process model, there is no activity for system integration. So one might question how the separate layers would be integrated with each other. However, if you pay attention to the design and implementation details of each layer, you will notice the dependencies mentioned in each layer, which lead to the integration. For example, business logic implementation requires the concrete database design, as well as the data access layer. The final user interface implementation would be done on top of the business logic implementation. Therefore, the integration of these independent layers happens seamlessly, along the way, in the process. If the team follows the process as it is, the integration would result in naturally.

Read Simple process for PHP projects in full
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