OnLineStrategy.UpsideComputingVisitor (JOSM)

java.lang.Object
- org.openstreetmap.josm.gui.mappaint.styleelement.placement.OnLineStrategy.UpsideComputingVisitor

All Implemented Interfaces:

MapViewPath.PathSegmentConsumer

Enclosing class:

OnLineStrategy
```
private static class OnLineStrategy.UpsideComputingVisitor
extends java.lang.Object
implements MapViewPath.PathSegmentConsumer
```
A visitor that computes the side of the way that is the upper one for each segment and computes the dominant upper side of the way. This is used to always place at least 50% of the text correctly.

Field Summary

Fields
Modifier and Type Field Description

private double endOffset

private double startOffset

private double upsideDownLines

private double upsideUpLines

Constructor Summary

Constructors
Constructor Description

UpsideComputingVisitor(double startOffset, double endOffset)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`addLineBetween(double inLineOffset, MapViewState.MapViewPoint start, MapViewState.MapViewPoint end, boolean startIsOldEnd)`	Add a line segment between two points
`(package private) boolean`	`shouldRotateText()`	Check if the text should be rotated by 180°

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - startOffset
```
private final double startOffset
```
  - endOffset
```
private final double endOffset
```
  - upsideUpLines
```
private double upsideUpLines
```
  - upsideDownLines
```
private double upsideDownLines
```
- Constructor Detail
  - UpsideComputingVisitor
```
UpsideComputingVisitor(double startOffset,
                       double endOffset)
```
- Method Detail
  - addLineBetween
```
public void addLineBetween(double inLineOffset,
                           MapViewState.MapViewPoint start,
                           MapViewState.MapViewPoint end,
                           boolean startIsOldEnd)
```
    Description copied from interface: MapViewPath.PathSegmentConsumer
    
    Add a line segment between two points
    
    Specified by:
    
    addLineBetween in interface MapViewPath.PathSegmentConsumer
    
    Parameters:
    
    inLineOffset - The offset of start in the line
    
    start - The start point
    
    end - The end point
    
    startIsOldEnd - If the start point equals the last end point.
  - shouldRotateText
```
boolean shouldRotateText()
```
    Check if the text should be rotated by 180°
    
    Returns:
    
    if the text should be rotated.