/// <summary> 搜索边坡线 </summary>
/// <param name="leftFill">左边边坡为填方还是挖方</param>
/// <param name="rightFill">右边边坡为填方还是挖方</param>
private bool FindSlopes(Extents3d extSection, out Polyline leftSlope, out bool leftFill, out Polyline rightSlope, out bool rightFill)
{
leftSlope = null;
rightSlope = null;
leftFill = false;
rightFill = false;
var res = DocMdf.acEditor.SelectCrossingWindow(
pt1: extSection.MinPoint,
pt2: extSection.MaxPoint,
filter: SlopeLine.Filter);
if (res.Status == PromptStatus.OK)
{
var lines = res.Value.GetObjectIds().Select(id => id.GetObject(OpenMode.ForRead)).OfType <Polyline>().ToList();
var lefts =
lines.Where(l => SlopeLine.IsSlopeLineLayer(l.Layer, left: true)).ToArray();
if (lefts.Length > 0)
{
// 从多个边坡线中搜索某个端点距离中轴线中心最近的那一条
var slp = GetClosestPolyLine(lefts, _MiddlePt);
// 当界面图形缩得太小时，有可以会把其他断面中的挡墙误加进来，
// 此时通过挡墙多段线中的某点是否位于此断面的Extends范围之内来确定它是否真是本断面的挡墙
if (slp != null && extSection.Contains(slp.StartPoint))
{
leftSlope = slp as Polyline;
leftFill = slp.Layer == Options_LayerNames.LayerName_Slope_Left_Fill;
}
}
var rights =
lines.Where(l => SlopeLine.IsSlopeLineLayer(l.Layer, left: false)).ToArray();
if (rights.Length > 0)
{
// 从多个边坡线中搜索某个端点距离中轴线中心最近的那一条
var slp = GetClosestPolyLine(rights, _MiddlePt);
if (slp != null && extSection.Contains(slp.StartPoint))
{
rightSlope = slp as Polyline;
rightFill = slp.Layer == Options_LayerNames.LayerName_Slope_Right_Fill;
}
}
}
// 对于一个横断面而言，可以没有边坡线，即不进行挖填
return(true);
}
/// <summary> 搜索挡土墙对象 </summary>
private bool FindRetainingWall(Extents3d extSection, out Polyline leftRetainingWall, out Polyline rightRetainingWall)
{
leftRetainingWall = null;
rightRetainingWall = null;
var hasRetainingWall = false;
// 请求在图形区域选择对象
var res = DocMdf.acEditor.SelectCrossingWindow(pt1: extSection.MinPoint, pt2: extSection.MaxPoint,
filter: RetainingWall.Filter);
if (res.Status == PromptStatus.OK)
{
var lines =
res.Value.GetObjectIds().Select(id => id.GetObject(OpenMode.ForRead)).OfType <Polyline>().Where(r => r.Closed).ToList();
// 从多个挡墙线中搜索某个端点距离中轴线中心最近的那一条
var lefts = lines.Where(r => r.Layer == Options_LayerNames.LayerName_RetainingWall_Left);
var slp = GetClosestPolyLine(lefts, _MiddlePt) as Polyline;
// 当界面图形缩得太小时，有可以会把其他断面中的挡墙误加进来，
// 此时通过挡墙多段线中的某点是否位于此断面的Extends范围之内来确定它是否真是本断面的挡墙
if (slp != null && extSection.Contains(slp.StartPoint))
{
leftRetainingWall = slp;
hasRetainingWall = true;
}
//
var rights = lines.Where(r => r.Layer == Options_LayerNames.LayerName_RetainingWall_Right);
slp = GetClosestPolyLine(rights, _MiddlePt) as Polyline;
if (slp != null && extSection.Contains(slp.StartPoint))
{
rightRetainingWall = slp;
hasRetainingWall = true;
}
}
return(hasRetainingWall);
}