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C# Polyline.ReduceSegments方法代码示例

本文整理汇总了C#中Polyline.ReduceSegments方法的典型用法代码示例。如果您正苦于以下问题:C# Polyline.ReduceSegments方法的具体用法?C# Polyline.ReduceSegments怎么用?C# Polyline.ReduceSegments使用的例子?那么恭喜您, 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Polyline的用法示例。


在下文中一共展示了Polyline.ReduceSegments方法的1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: simplifyPolylineSDMin

        private Polyline simplifyPolylineSDMin(Polyline polyline, double compressionLevel)
        {
            polyline = (Polyline)polyline.Clone();
            polyline.ReduceSegments(PlanimetryAlgorithms.Tolerance);

            //are counting vertex weights
            List<SDMinVertex> weightedVertices = getWeightedVertices(polyline);

            // find the points of intersection
            KDTree crossPointIndex = getCrossPointsIndex(polyline);

            // building codes
            KDTree vertexIndex = buildVertexIndex(weightedVertices, polyline);

            List<SDMinVertex> deletedVertices = new List<SDMinVertex>();

            int pointCount = polyline.CoordinateCount;
            int n = 0;

            while (n < weightedVertices.Count &&
                   (double)(pointCount - deletedVertices.Count) / (double)pointCount > compressionLevel)
            {
                SDMinVertex currentVertex = weightedVertices[n];
                if (currentVertex.Deleted || 
                    currentVertex.IsCrossSegmentVertex ||
                    currentVertex.Previous == null || 
                    currentVertex.Next == null)
                {
                    n++;
                    continue;
                }

                if (checkWeightedVertex(polyline, vertexIndex, currentVertex, crossPointIndex))
                {
                    //the top can be removed
                    currentVertex.Previous.Next = currentVertex.Next;
                    currentVertex.Next.Previous = currentVertex.Previous;
                    deletedVertices.Add(currentVertex);
                    vertexIndex.Remove(currentVertex);
                    currentVertex.Deleted = true;
                    n = 0;
                }
                else
                    n++;
            }

            removeVertices(polyline, deletedVertices);

            return polyline;
        }
开发者ID:gkrsu,项目名称:maparound.core,代码行数:50,代码来源:Simplifier.cs


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