1. Provides access to members that determine if a certain spatial relationship exists between two geometries.
Members
| Description | ||
|---|---|---|
 |
Contains | Indicates if this geometry contains the other geometry. 前者是否包含后者！ |
|
Crosses | Indicates if the two geometries intersect in a geometry of lesser dimension. |
|
Disjoint | Indicates if the two geometries share no points in common. Negate this result to compute the Intersect relation. |
|
Equals | Indicates if the two geometries are of the same type and define the same set of points in the plane. |
|
Overlaps | Indicates if the intersection of the two geometries has the same dimension as one of the input geometries. 前者和后者是否有重叠！不包括包含关系！ |
|
Relation | Indicates if the defined relationship exists. |
|
Touches | Indicates if the boundaries of the geometries intersect. |
|
Within | Indicates if this geometry is contained (is within) another geometry. 前者是否在后者内部！ |
这边没有判断几何体相交的方法。
采用Relation来实现Intersects： RELATE(G1, G2, 'T********')
string relationDescription = "RELATE(G1, G2, 'T********')";
isIntersects = (track as IRelationalOperator).Relation(ele.Geometry, relationDescription);
if (isIntersects)
{
selectedcount++;
pGraphicsContainerSelect.SelectElement(ele);
}