路线到地形投影如何知道哪一段地面线缺失?

由DTMDrapedLinearElement投影到地面线得到纵断面点集ProfileElement.LineStringVertices,投影线路有一段是没有地形的,ORD自己的纵断面图形是会显示出地形缺失的情况,请问我怎么样能中知道点集中哪一段没有地形?

Parents
  • 可以参考下:

                    Bentley.TerrainModelNET.DTMDrapedLinearElement linearElement = m_dtm.DrapeLinearPoints(points);
                    foreach (var pt in linearElement)
                        {
                        switch (pt.Code)
                            {
                            case TerrainModelNET.DTMDrapedLinearElementPointCode.External:
                            case TerrainModelNET.DTMDrapedLinearElementPointCode.Void:
                                if (drapedLine.Count > 0)
                                    {
                                    drapedLines.Add(drapedLine);
                                    drapedLine.Clear();
                                    }
                                break;
                            default:
                                drapedLine.Add(pt.Coordinates);
                                break;
                            }
                        }

    Answer Verified By: Tee Lee 

Reply
  • 可以参考下:

                    Bentley.TerrainModelNET.DTMDrapedLinearElement linearElement = m_dtm.DrapeLinearPoints(points);
                    foreach (var pt in linearElement)
                        {
                        switch (pt.Code)
                            {
                            case TerrainModelNET.DTMDrapedLinearElementPointCode.External:
                            case TerrainModelNET.DTMDrapedLinearElementPointCode.Void:
                                if (drapedLine.Count > 0)
                                    {
                                    drapedLines.Add(drapedLine);
                                    drapedLine.Clear();
                                    }
                                break;
                            default:
                                drapedLine.Add(pt.Coordinates);
                                break;
                            }
                        }

    Answer Verified By: Tee Lee 

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