com.luciad.view.vertical

LuciadLightspeedInterface ILcdVVModel

All Known Implementing Classes:

ALcdVVModel, TLcdVVTerrainModel, TLcdVVTerrainProfileModel

public interface ILcdVVModel

A vertical view model. It describes one main profile (typically a cross-section line) and zero or more sub-profiles (typically additional information such as the terrain height or altitude zones). The line section drawn between two successive points of the main profile is called a segment.

A sub-profile can contain multiple points per main profile segment, defining a number of steps in the segment. The number of steps of the sub-profile is equal to the number of sub-profile-points in a segment minus one. The sub-profile point coordinates on the X-axis are defined by the stepLenghtRatio(int, int, int). For each of the sub-profile points, it is possible to specify two (possibly coinciding) altitude values: the minimum and maximum altitude.

See Also:

ALcdVVModel

Method Summary

Modifier and Type	Method and Description
void	addChangeListener(ChangeListener aListener) The changeEvent will be thrown when the models internal state has changed and recalculation is required.
double	getDistance(int aPointIndexA, int aPointIndexB) Returns the distance between the given two points.
ILcdPoint	getPoint(int aIndex)
int	getPointCount()
int	getSubProfileCount()
boolean	isEditable()
double	maxZ(int aSubProfilePointIndex, int aSegmentIndex, int aSubProfileIndex)
double	minZ(int aSubProfilePointIndex, int aSegmentIndex, int aSubProfileIndex)
void	removeChangeListener(ChangeListener aListener)
void	setPointZ(int aIndex, double aZ, boolean isLastInRow) This method will be called whenever a point of the main-profile is being dragged so that its Z-dimension needs to be changed.
float	stepLenghtRatio(int aSubProfilePointIndex, int aSegmentIndex, int aSubProfileIndex) Returns where the given sub-profile point is positioned on the X-axis.
int	subProfilePointCount(int aSegmentIndex, int aSubProfileIndex) Returns the number of points (steps) of a sub-profile for the given main profile segment.

Method Detail

getPointCount

int getPointCount()

Returns:

the number of points on the main-profile.

isEditable

boolean isEditable()

Returns:

true if editing of the main-profile (dragging the points) is allowed.

getPoint

ILcdPoint getPoint(int aIndex)
            throws IndexOutOfBoundsException

Parameters:

aIndex - the index of the point in the main profile

Returns:

a point at a given index on the main-profile.

Throws:

IndexOutOfBoundsException

See Also:

setPointZ(int, double, boolean)

getSubProfileCount

int getSubProfileCount()

Returns:

the number of sub-profiles in this ILcdVVModel.

subProfilePointCount

int subProfilePointCount(int aSegmentIndex,
                         int aSubProfileIndex)
                  throws IndexOutOfBoundsException

Returns the number of points (steps) of a sub-profile for the given main profile segment.

Parameters:

aSegmentIndex - the index of the segment in the main profile

aSubProfileIndex - the index of the sub-profile to use

Returns:

For a given segment and for one specific sub-profile, how many points are contained.

Throws:

IndexOutOfBoundsException

minZ

double minZ(int aSubProfilePointIndex,
            int aSegmentIndex,
            int aSubProfileIndex)
     throws IndexOutOfBoundsException

Parameters:

aSubProfilePointIndex - the index of the sub-profile point whose altitude to retrieve

aSegmentIndex - the main-profile segment of the sub-profile point A segment is a line-piece drawn between two main-profile points.

aSubProfileIndex - the index of the sub-profile to use

Returns:

Should return the minimum altitude for one specific sub-profile-point. This minZ value will be used when the rendering mode for this sub-profile is BOTTOM_LINE, FILLED or POLYGON.

Throws:

IndexOutOfBoundsException

maxZ

double maxZ(int aSubProfilePointIndex,
            int aSegmentIndex,
            int aSubProfileIndex)
     throws IndexOutOfBoundsException

Parameters:

aSubProfilePointIndex - the index of the sub-profile point whose altitude to retrieve

aSegmentIndex - the main-profile segment to retrieve the step length for. A segment is a line-piece drawn between two main-profile points.

aSubProfileIndex - the index of the sub-profile to use

Returns:

Should return the maximum altitude for one specific sub-profile-point. This maxZ value will be used when rendering mode for this sub-profile is TOP_LINE, FILLED or POLYGON.

Throws:

IndexOutOfBoundsException

stepLenghtRatio

float stepLenghtRatio(int aSubProfilePointIndex,
                      int aSegmentIndex,
                      int aSubProfileIndex)
               throws IndexOutOfBoundsException

Returns where the given sub-profile point is positioned on the X-axis. More precisely, this method returns the percentage on the X-axis the given sub-profile point represents on the given main profile segment. The sum of all the ratios for one sub-profile on the segment should be 1.

Parameters:

aSubProfilePointIndex - defines the step. It is the point to the right of the step, so it can never be less than 1,

aSegmentIndex - the main-profile segment to retrieve the step length for. A segment is a line-piece drawn between two main-profile points.

aSubProfileIndex - the sub-profile to retrieve the step length ratio for

Returns:

the percentage on the X-axis the given sub-profile step represents

Throws:

IndexOutOfBoundsException

setPointZ

void setPointZ(int aIndex,
               double aZ,
               boolean isLastInRow)
        throws IndexOutOfBoundsException

This method will be called whenever a point of the main-profile is being dragged so that its Z-dimension needs to be changed. If isLastInRow is false, the user should consider caching the Z-value.

Parameters:

aZ - The new altitude for the point.

aIndex - The index of the point being dragged.

isLastInRow - While the user is dragging the point, this parameter will be false, at the release of the mouse this parameter will be true.

Throws:

IndexOutOfBoundsException

getDistance

double getDistance(int aPointIndexA,
                   int aPointIndexB)

Returns the distance between the given two points. This distance typically determines the X-axis of a VV panel. The distance unit can be meters, degrees, seconds, ...

Returns:

the distance between two points

addChangeListener

void addChangeListener(ChangeListener aListener)

The changeEvent will be thrown when the models internal state has changed and recalculation is required.

removeChangeListener

void removeChangeListener(ChangeListener aListener)

See Also:

addChangeListener(javax.swing.event.ChangeListener)