Use the GD2 function to draw a geometric image (PHP image typical tutorial 4) This article mainly explains how to use the GD2 function to draw a geometric image. First, we need to create an image, as we mentioned in the previous article, creating an image is the first step in all image operations. then, draw the outline of the image based on coordinate points on the background, and finally output the image! In the previous article "using image processing technology to generate a verification code (PHP graphic image typical application tutorial 3)", we introduced how to generate a verification code. I wonder if my friends have mastered this knowledge point, not familiar yet... use the GD2 function to draw a geometric image (PHP image typical tutorial 4) This article mainly explains how to use the GD2 function to draw a geometric image. First, we need to create an image, as we mentioned in the previous article, creating an image is the first step in all image operations. then, draw the outline of the image based on coordinate points on the background, and finally output the image! In the previous article "using image processing technology to generate a verification code (PHP graphic image typical application tutorial 3)", we introduced how to generate a verification code. I wonder if my friends have mastered this knowledge point, if you are not familiar with it, you can review it! Today we will explain how to draw a geometric chart! Technical points of this article: This article mainly uses the GD2 function to draw ry. some of the functions have been described in detail in the previous article, the following describes common functions: (1) imagecreatetruecolor () this function is used to recommend a full-color image file resource. the syntax format of this function is as follows: int imagecreatetruecolor (int x_size, int & nb
1. use the GD2 function to draw ry (PHP graphic image typical application tutorial 4)
Introduction: This article mainly introduces the java documentation for intercepting Image instance code based on coordinates. For more information, see
3. jquery (Jcrop) + PHP cut images based on coordinates
Introduction: jquery (Jcrop) + PHP cut images based on coordinates
4. post a code to calculate the distance based on coordinates, which can be used for reference when developed by LBS.
Brief introduction: provides various official and user-released code examples and Code Reference. You are welcome to exchange and learn.
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The above is the details about the recommended articles based on coordinates. For more information, see other related articles in the first PHP community!
