com.luciad.view.map.multilevelgrid

LuciadFusionInterface ILcdMultilevelGrid

All Superinterfaces:

ILcdBounded

public interface ILcdMultilevelGrid
extends ILcdBounded

Describes a rectangular, axis aligned, uniform, multilevel grid. A grid defines a number of areas which can be located and expressed using multilevel coordinates. These coordinates may be expressed in any reference. A multilevel grid has multiple levels, each having a different granularity, based on the level above, designating smaller areas. A multilevel grid is defined by:

• the extreme points of the grid. These are the points with the highest and lowest coordinates expressed in the reference on which this grid is based.
• the number of levels of the grid,
• the number of subdivisions of the grid at each of those levels. The number of subdivisions will define the granularity of the grid at each level.

Since:

7.0

Field Summary

Fields

Modifier and Type	Field and Description
static int	X_AXIS Constant for the X axis.
static int	Y_AXIS Constant for the Y axis.

Method Summary

Modifier and Type	Method and Description
default ILcdEditableMultilevelGridCoordinate	createGridCoordinate() Creates a new editable multilevel grid coordinate.
int	getDivisions(int aLevel, int aAxis) Returns the number of subdivisions in the grid at a given level along a given axis.
int	getLevelCount() Returns the number of levels the grid described consists of.

Methods inherited from interface com.luciad.shape.ILcdBounded

getBounds

Field Detail

X_AXIS

static final int X_AXIS

Constant for the X axis.

See Also:

getDivisions(int, int), Constant Field Values

Y_AXIS

static final int Y_AXIS

Constant for the Y axis.

See Also:

getDivisions(int, int), Constant Field Values

Method Detail

getLevelCount

int getLevelCount()

Returns the number of levels the grid described consists of.

Returns:

the number of levels the grid described consists of.

getDivisions

int getDivisions(int aLevel,
                 int aAxis)

Returns the number of subdivisions in the grid at a given level along a given axis. The number of subdivisions is given compared to the previous level.

Parameters:

aLevel - the level for which the subdivisions will be returned. Should be smaller than the level count.

aAxis - the axis for which the subdivisions will be returned, either X_AXIS or Y_AXIS.

Returns:

the number of subdivisions in the grid at a given level along a given axis.

createGridCoordinate

default ILcdEditableMultilevelGridCoordinate createGridCoordinate()

Creates a new editable multilevel grid coordinate.

Returns:

a multilevel grid coordinate that can be edited

Since:

2020.1