使用GD在地图上的特定点绘制饼图而不绘制矩形或椭圆形。
Instead of rectangles or ellipses, draw pie charts using GD at specific points on the map.
定义弧形和椭圆形,并指出绘制这种形状所需使用的类别。
Defines arcs and ellipses and identifies the classes needed to draw them.
绘制弧形,表示由一对座标、宽度和高度所指定的椭圆形的一部分。
Draws an arc representing a portion of an ellipse specified by a pair of coordinates, a width, and a height.
绘制由椭圆形所定义的派形,该椭圆形是由座标对、宽度、高度和两条放射线所指定。
Draws a pie shape defined by an ellipse specified by a coordinate pair, a width, a height, and two radial lines.
绘制由椭圆形所定义的派形,该椭圆形是由座标对、宽度、高度和两条放射线所指定。
Draws a pie shape defined by an ellipse specified by a coordinate pair, a width, a height, and two radial lines.
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