com.mousebird.maply

Class ScreenLabel

java.lang.Object

com.mousebird.maply.ScreenLabel

Direct Known Subclasses:

ScreenMovingLabel

public class ScreenLabel
extends java.lang.Object

The screen label is a 2D label that tracks a location on the map. The label has a geographic location as well as information about the text it's displaying and other control attributes.

It works in combination with a LabelInfo class to describe more broad attributes such as color and font size.

Field Summary

Fields

Modifier and Type	Field and Description
float	layoutImportance The layout engine controls how text is displayed.
int	layoutPlacement The layout placement controls where we can put the label relative to its point.
Point2d	layoutSize If set, this is the size of the object as seen by the layout engine.
Point2d	loc The location in geographic (WGS84) radians.
Point2d	offset If non-null an offset to tweak the label by.
double	rotation If non-zero we'll rotate the label that number of radians around the attachment point.
boolean	selectable
java.lang.String	text The text to display for the label.
java.lang.String	uniqueID
java.lang.Object	userObject For selection, we include a user accessible object pointer.

Constructor Summary

Constructors

Constructor and Description
ScreenLabel()

Method Summary

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

loc

public Point2d loc

The location in geographic (WGS84) radians. x is longitude, y is latitude. The label will track this location.

rotation

public double rotation

If non-zero we'll rotate the label that number of radians around the attachment point.

text

public java.lang.String text

The text to display for the label.

offset

public Point2d offset

If non-null an offset to tweak the label by. We'll move the label this number of pixels from where it normally would be.

selectable

public boolean selectable

layoutImportance

public float layoutImportance

The layout engine controls how text is displayed. It tries to avoid overlaps and takes priority into account. The layout importance controls which labels (or other features) are laid out first. Bigger is more important.

Defaults to MAXFLOAT, which is off. That means the layout engine does not control the associated labels.

layoutPlacement

public int layoutPlacement

The layout placement controls where we can put the label relative to its point.

layoutSize

public Point2d layoutSize

If set, this is the size of the object as seen by the layout engine. If not set, it uses the display size

uniqueID

public java.lang.String uniqueID

userObject

public java.lang.Object userObject

For selection, we include a user accessible object pointer. You use this to identify a label if you're doing user selection.

Constructor Detail

ScreenLabel

public ScreenLabel()