//"1,1;2,2;3,3"
public static void Main(string[] args)
{
//args = new string[3];
//string ss = "0,0;0,1;1,1;1,0";
//string ss1 = "0,0;0,1;1,1;1,0";
//string ss2 = "0";
//args[0] = ss;
//args[1] = ss1;
//args[2] = ss2;
if (args?.Count() != 3)
{
return;
}
try
{
string[] ptStr1 = args[0].Split(';');
string[] ptStr2 = args[1].Split(';');
//0：相差 1：相交 2：异或 3：合并
GpcOperation operation = (GpcOperation)(int.Parse(args[2]));
//组织多边形A顶点数据
GpcWrapper.Polygon polygonA = new GpcWrapper.Polygon();
PointF[] aa = new PointF[ptStr1.Count()];
for (int i = 0; i < ptStr1.Count(); i++)
{
var subPtStr = ptStr1[i].Split(',');
aa[i] = new PointF(float.Parse(subPtStr[0]),
float.Parse(subPtStr[1]));
}
VertexList vtxA = new VertexList(aa);
polygonA.AddContour(vtxA, false);
//组织多边形B顶点数据
GpcWrapper.Polygon polygonB = new GpcWrapper.Polygon();
PointF[] bb = new PointF[ptStr2.Count()];
for (int i = 0; i < ptStr2.Count(); i++)
{
var subPtStr = ptStr2[i].Split(',');
bb[i] = new PointF(float.Parse(subPtStr[0]),
float.Parse(subPtStr[1]));
}
VertexList vtxB = new VertexList(bb);
polygonB.AddContour(vtxB, false);
//调用GPC库的剪辑算法
GpcWrapper.Polygon result = polygonA.Clip(operation, polygonB);
//组织返回结果字符串
if (result.Contour == null || result.Contour.Count() == 0)
{
Console.WriteLine("");
return;
}
string str = string.Join(";", result.Contour[0].Vertex);
str = str.Replace("(", string.Empty).Replace(")", string.Empty);
Console.WriteLine(str);
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
}
