ILcd2DBinaryTopology (LuciadFusion API documentation)

All Known Subinterfaces:

ILcd2DEllipsoidalBinaryTopology

All Known Implementing Classes:

ALcd2DBasicBinaryTopology, ALcd2DBasicBinaryTopologyMultiShape, TLcdCartesianBasicBinaryTopology, TLcdEllipsoidalBasicBinaryTopology, TLcdSphericalBasicBinaryTopology
```
public interface ILcd2DBinaryTopology
```
This interface defines binary topology relations on ILcdShapes.

Since:

1.0

Field Summary

Fields
Modifier and Type	Field and Description
`static int`	`CONTAIN` Constant to be used to indicate the operation to be performed is to check whether the first shape contains the second shape.
`static int`	`INSIDE` Constant to be used to indicate the operation to be performed is to check whether the first shape is inside the second shape.
`static int`	`INTERACT` Topology relation constant INTERACT Two `ILcdShape` objects INTERACT if and only if there is some overlap meaning they have at least one point in common.
`static int`	`LINE_INTERSECT` Constant to be used to indicate the operation to be performed is to check whether the first shape boundary intersects the second shape boundary.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method and Description
`boolean`	`checkTopology(ILcdShape aS1, ILcdShape aS2, int aRelation)` Returns `true` if and only if the binary topology relation `aRelation` holds `true` on `aS1` and `aS2`.

- Field Detail
  - INTERACT
```
static final int INTERACT
```
    Topology relation constant INTERACT Two ILcdShape objects INTERACT if and only if there is some overlap meaning they have at least one point in common.
    
    The red shapes interact with the respective blue shapes.
    
    See Also:
    
    Constant Field Values
  - CONTAIN
```
static final int CONTAIN
```
    Constant to be used to indicate the operation to be performed is to check whether the first shape contains the second shape. This is the inverse of the INSIDE operation.
    
    This is a more fine-grained check than the INTERACT check. If this check returns true, the INTERACT check will also return true.
    
    The red shape contains the blue shape.
    
    See Also:
    
    Constant Field Values
  - INSIDE
```
static final int INSIDE
```
    Constant to be used to indicate the operation to be performed is to check whether the first shape is inside the second shape. This is the inverse of the CONTAIN operation.
    
    This is a more fine-grained check than the INTERACT check. If this check returns true, the INTERACT check will also return true.
    
    The red shape is inside the blue shape.
    
    See Also:
    
    Constant Field Values
  - LINE_INTERSECT
```
static final int LINE_INTERSECT
```
    Constant to be used to indicate the operation to be performed is to check whether the first shape boundary intersects the second shape boundary.
    
    This is a more fine-grained check than the INTERACT check. If this check returns true, the INTERACT check will also return true.
    
    The red shapes line intersect the respective blue shapes.
    
    See Also:
    
    Constant Field Values
- Method Detail
  - checkTopology
```
boolean checkTopology(ILcdShape aS1,
                      ILcdShape aS2,
                      int aRelation)
```
    Returns true if and only if the binary topology relation aRelation holds true on aS1 and aS2.
    
    Parameters:
    
    aS1 - first shape
    
    aS2 - second shape
    
    aRelation - relation to be checked upon. Should be one of the constants in this interface (INTERACT, CONTAIN, INSIDE, LINE_INTERSECT).
    
    Returns:
    
    true if and only if the binary topology relation aRelation holds true on aS1 and aS2.

Advanced GIS EngineInterface ILcd2DBinaryTopology

Field Summary

Method Summary

Field Detail

INTERACT

CONTAIN

INSIDE

LINE_INTERSECT

Method Detail

checkTopology