本文整理汇总了C#中GeoAPI.CreateLinearRing方法的典型用法代码示例。如果您正苦于以下问题:C# GeoAPI.CreateLinearRing方法的具体用法?C# GeoAPI.CreateLinearRing怎么用?C# GeoAPI.CreateLinearRing使用的例子?那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类GeoAPI
的用法示例。
在下文中一共展示了GeoAPI.CreateLinearRing方法的2个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: CreateEllipse
public static GeoAPI.Geometries.ILinearRing CreateEllipse(GeoAPI.Geometries.IGeometryFactory factory,
GeoAPI.Geometries.Coordinate center, System.Drawing.SizeF size, int segmentsPerQuadrant)
{
const double piHalf = System.Math.PI * 0.5d;
var step = piHalf / segmentsPerQuadrant;
var pts = new GeoAPI.Geometries.Coordinate[4 * segmentsPerQuadrant + 1];
var angle = 0d;
for (var i = 0; i < 4 * segmentsPerQuadrant; i++)
{
pts[i] = new GeoAPI.Geometries.Coordinate(center.X + System.Math.Cos(angle) * size.Width,
center.Y + System.Math.Sin(angle) * size.Height);
angle += step;
}
pts[pts.Length - 1] = pts[0];
return factory.CreateLinearRing(pts);
}
示例2: CreateRectangle
public static GeoAPI.Geometries.ILinearRing CreateRectangle(GeoAPI.Geometries.IGeometryFactory factory,
GeoAPI.Geometries.Coordinate leftTop, GeoAPI.Geometries.Coordinate rightBottom)
{
var pts = new[]
{
leftTop,
new GeoAPI.Geometries.Coordinate(rightBottom.X, leftTop.Y),
rightBottom,
new GeoAPI.Geometries.Coordinate(leftTop.X, rightBottom.Y),
leftTop
};
return factory.CreateLinearRing(pts);
}