对于搜索服务，您需要的是一个php页面，该页面使用纬度和经度对以及半径，并且返回与该圆具有一定位置关系的任何文章。

What you need from a search service is a PHP page that takes a latitude and longitude pair, along with a radius, and returns any articles that have a location with that circle.

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从此，这个“肥胖女孩”的定位会越来越巩固，并将成为一个循环的圆不断重复着。

The identity of being ‘the fat girl’ is further reinforced.The cycle repeats.

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对于第一个简单效果，将在视频流中的固定位置绘制一个阿尔法混合(半透明的)圆。

For our first simple effect, we will draw an alpha-blended (semitransparent) circle at a fixed position over the video stream. The first step is to add the drawing functions to the screen.c.

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