本文整理汇总了C#中IEnvelope.Bottom方法的典型用法代码示例。如果您正苦于以下问题:C# IEnvelope.Bottom方法的具体用法?C# IEnvelope.Bottom怎么用?C# IEnvelope.Bottom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类IEnvelope
的用法示例。
在下文中一共展示了IEnvelope.Bottom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: AddRegion
/// <summary>
/// This uses extent checking (rather than full polygon intersection checking). It will add
/// any members that are either contained by or intersect with the specified region
/// depending on the SelectionMode property. The order of operation is the region
/// acting on the feature, so Contains, for instance, would work with points.
/// </summary>
/// <param name="region"></param>
/// <param name="affectedArea">The affected area of this addition</param>
/// <returns>True if any item was actually added to the collection</returns>
public bool AddRegion(IEnvelope region, out IEnvelope affectedArea)
{
bool added = false;
SuspendChanges();
affectedArea = new Envelope();
Stopwatch sw = new Stopwatch();
Stopwatch total = new Stopwatch();
total.Start();
foreach (IFeature f in FeatureList)
{
bool doAdd = false;
if (_selectionMode == SelectionMode.IntersectsExtent)
{
if (region.Intersects(f.Envelope))
{
Add(f);
affectedArea.ExpandToInclude(f.Envelope);
added = true;
}
}
else if (_selectionMode == SelectionMode.ContainsExtent)
{
if (region.Contains(f.Envelope))
{
Add(f);
affectedArea.ExpandToInclude(f.Envelope);
added = true;
}
}
IGeometry reg;
if (region.Width == 0 && region.Height == 0)
{
reg = new Point(region.X, region.Y);
}
else if (region.Height == 0 || region.Width == 0)
{
Coordinate[] coords = new Coordinate[2];
coords[0] = new Coordinate(region.X, region.Y);
coords[1] = new Coordinate(region.Bottom(), region.Right());
reg = new LineString(coords);
}
else
{
reg = region.ToPolygon();
}
IGeometry geom = Geometry.FromBasicGeometry(f.BasicGeometry);
switch (_selectionMode)
{
case SelectionMode.Contains:
if (region.Contains(f.Envelope))
{
doAdd = true;
}
else if (region.Intersects(f.Envelope))
{
if (reg.Contains(geom)) doAdd = true;
}
break;
case SelectionMode.CoveredBy:
if (reg.CoveredBy(geom)) doAdd = true;
break;
case SelectionMode.Covers:
if (reg.Covers(geom)) doAdd = true;
break;
case SelectionMode.Disjoint:
if (reg.Disjoint(geom)) doAdd = true;
break;
case SelectionMode.Intersects:
if (region.Contains(f.Envelope))
{
doAdd = true;
}
else if (region.Intersects(f.Envelope))
{
if (reg.Intersects(geom)) doAdd = true;
}
break;
case SelectionMode.Overlaps:
if (reg.Overlaps(geom)) doAdd = true;
break;
case SelectionMode.Touches:
if (reg.Touches(geom)) doAdd = true;
break;
case SelectionMode.Within:
if (reg.Within(geom)) doAdd = true;
break;
}
//.........这里部分代码省略.........