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C# Segment.GetBoundingRectangle方法代码示例

本文整理汇总了C#中Segment.GetBoundingRectangle方法的典型用法代码示例。如果您正苦于以下问题:C# Segment.GetBoundingRectangle方法的具体用法?C# Segment.GetBoundingRectangle怎么用?C# Segment.GetBoundingRectangle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Segment的用法示例。


在下文中一共展示了Segment.GetBoundingRectangle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: getRelatedSegments

        private List<SplittedSegment> getRelatedSegments(Segment segment)
        {
            List<SplittedSegment> result = new List<SplittedSegment>();
            if (_splittedSegmentIndex != null)
                _splittedSegmentIndex.QueryObjectsInRectangle(segment.GetBoundingRectangle(), result);
            else
            {
                int startIndex = 0;
                int endIndex = _splittedSegments.Count - 1;
                double v2x = segment.V2.X;
                double v1x = segment.V1.X;
                double tolerance = PlanimetryAlgorithms.Tolerance;

                while (endIndex - startIndex > 1)
                {
                    int index = startIndex + (endIndex - startIndex) / 2;
                    if (_splittedSegments[index].Segment.V1.X > v2x)
                        endIndex = index;
                    else
                        startIndex = index;
                }

                while (endIndex < _splittedSegments.Count - 1 &&
                       _splittedSegments[endIndex].Segment.V1.X < v2x + tolerance)
                    endIndex++;

                for (int i = endIndex; i >= 0; i--)
                {
                    if (_splittedSegments[i].Segment.V2.X + tolerance < v1x ||
                        _splittedSegments[i].Segment.V1.X - tolerance > v2x)
                        continue;

                    result.Add(_splittedSegments[i]);
                }
            }

            return result;
        }
开发者ID:gkrsu,项目名称:maparound.core,代码行数:38,代码来源:Topology.cs

示例2: checkWeightedVertex

        private bool checkWeightedVertex(Polyline polyline, KDTree vertexIndex, SDMinVertex currentVertex, KDTree crossPointIndex)
        {
            // probably not an internal vertex
            if (currentVertex.Previous == null || currentVertex.Next == null)
                return true;

            // top with infinite weight ("do not remove")
            if (double.IsPositiveInfinity(currentVertex.Weight))
                return true;


            SDMinVertex previous = currentVertex.Previous;
            SDMinVertex next = currentVertex.Next;

            // One of the segments formed by the vertex in question may be one of the intersection points.
            // If so, you can not remove the top, as point of self-intersection, it may be removed.
            Segment s1 = new Segment(pointOfWeightedVertex(polyline, currentVertex),
                                     pointOfWeightedVertex(polyline, previous));
            Segment s2 = new Segment(pointOfWeightedVertex(polyline, currentVertex),
                                     pointOfWeightedVertex(polyline, next));

            List<SDMinCrossPoint> crossPoints = new List<SDMinCrossPoint>();
            crossPointIndex.QueryObjectsInRectangle(s1.GetBoundingRectangle(), crossPoints);
            crossPointIndex.QueryObjectsInRectangle(s2.GetBoundingRectangle(), crossPoints);
            foreach (SDMinCrossPoint point in crossPoints)
            {
                if (PlanimetryAlgorithms.LiesOnSegment(point.Point, s1))
                {
                    currentVertex.IsCrossSegmentVertex = true;
                    currentVertex.Previous.IsCrossSegmentVertex = true;
                    return false;
                }
                if(PlanimetryAlgorithms.LiesOnSegment(point.Point, s2))
                {
                    currentVertex.IsCrossSegmentVertex = true;
                    currentVertex.Next.IsCrossSegmentVertex = true;
                    return false;
                }
            }

            //One of the polyline vertices can belong to a triangle, 
            //the apex of which is considered the top. In this case,
            //the top can not be deleted because will be a new point of self-intersection.
            Polygon triangle = new Polygon(new ICoordinate[] { pointOfWeightedVertex(polyline, previous), 
                                                          pointOfWeightedVertex(polyline, currentVertex),
                                                          pointOfWeightedVertex(polyline, next) });

            List<SDMinVertex> vertices = new List<SDMinVertex>();
            vertexIndex.QueryObjectsInRectangle<SDMinVertex>(triangle.GetBoundingRectangle(), vertices);

            foreach (SDMinVertex vertex in vertices)
            {
                ICoordinate p = pointOfWeightedVertex(polyline, vertex);

                //point should not be the top of the triangle
                if (p.ExactEquals(triangle.Contours[0].Vertices[0]) ||
                   p.ExactEquals(triangle.Contours[0].Vertices[1]) ||
                   p.ExactEquals(triangle.Contours[0].Vertices[2]))
                    continue;

                if (triangle.ContainsPoint(p))
                    return false;
            }

            return true;
        }
开发者ID:gkrsu,项目名称:maparound.core,代码行数:66,代码来源:Simplifier.cs


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