Clever ways to create graphics using PHP 5.0 _php Tips

I divide the graphics editing program into two categories: one (yes) drawing program, this program allows you to draw an image in one pixel, one pixel (ground), and another (IS) a mapping program that provides a set of objects, such as lines, ellipses, and rectangles that you can use to combine into a large image, such as JPEG. The drawing program is ideal for pixel level control. But (yes) for business graphics, the graphics program (IS) a better way because most of the graphics are (are) made up of rectangles, lines, and ellipses.

PHP's built-in () graphics basic operation is very similar to the drawing program. They are very powerful for drawing images, but (yes) this is not appropriate if you want your image (is) a set of objects set. This article will show you how to build an object-oriented (and) graphics library based on the PHP graphics library. You will use the object-oriented () extensions provided in the PHP V5.

With object-oriented (and) graphic support, your graphics code is easy to understand and maintain. You may also want to combine graphics from a single (and) graphic source into multiple types of media: Flash movies, SVG, and so on.

Goal

Creating a Graphics object library consists of 3 main goals:

Switch from basic operation to object

It does not use Imageline, Imagefilledrectangle, and other graphical functions, and this library should provide objects such as line, Rectangle, and Oval, which can be used to make images. It should also support the ability to build larger (,) complex objects or to group objects.

Can be sorted by Z-value

The drawing program allows the painter to move the drawing objects up and down on the surface of the picture. This library should support the ability to place an object before and after other objects: it uses a Z value to define the height of the object from the drawing plane. The greater the Z-value (the) object is drawn (as) the later, the (also) appears on top of those objects with a smaller Z value.