How to implement a friend circle function in the app analysis of the principle of the circle of friendsFriends Circle, Sina Weibo, know well-known friends circle type function, have you ever thought about the logic of its realization?This article
Custom circle image, custom circle
Circular images must be a point of knowledge used in project development.
Here we will learn how to create a circular image, mainly using the knowledge of the BitmapShader class.
I. First, let's take a look at
Midpoint Drawing Circle Algorithmlike the raster line algorithm, we sampled each step at a unit interval and determined the nearest pixel position from the specified circle. For givingSet radius r and Screen center (XC,yC), you can first use the
The micro-letter advertisement of the Circle of Friends is fire for a while, along with the output of micro-letter, all the road to the great God around marketing marketing, chicken soup, the article of Chicken soup, Agent recruitment agent, a
IOS converts a simple image into a circle, and ios image into a circle.
Push is a defined button.
Push. layer. masksToBounds = YES;
Push. layer. cornerRadius = 100;
Push. layer. borderWidth = 10;
Push. layer. borderColor = [[UIColor blackColor]
Android imitation circle of friends Image Viewer
Before reading this blog post, I hope you can open your posts to the circle of friends and carefully check whether there is a "jiugongge" image area in the circle of friends, clicking an image will
The basic principle of Hough transformation is to convert the line of the image space into the gathering point of the parameter space by the parity of the point and line, so as to detect whether the given image has a curve of a given nature. The
For example, the equation of the known circle: x2+y2=32, the method of drawing a circle has the following two kinds:
Method One will evolve the circle equation to 2 functions, drawing images separately
In the first step, the circle equation is
Draw a rectangle:The getContext ("2d") object is a built-in HTML5 object. It has multiple ways to draw paths, rectangles, circles, characters, and add images.The fillStyle method colors it red, and the fillRect method specifies the shape, position,
Forwarding friend circle link form of resource
1, login their own micro-letter, into the circle of friends, find a link to share the form. Click the arrow to refer to the article.
2, enter this article, click on the top right corner of the three
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