Class PackedLineIterator

Object
AbstractLiteIterator
PackedLineIterator
All Implemented Interfaces:
PathIterator

public final class PackedLineIterator extends AbstractLiteIterator
A path iterator for the LiteShape class, specialized to iterate over LineString object.
Author:
Andrea Aime
  • Constructor Details

    • PackedLineIterator

      public PackedLineIterator(LineString ls, AffineTransform at, boolean generalize, float maxDistance)
      Creates a new instance of LineIterator
      Parameters:
      ls - The line string the iterator will use
      at - The affine transform applied to coordinates during iteration
  • Method Details

    • setMaxDistance

      public void setMaxDistance(float distance)
      Sets the distance limit for point skipping during distance based generalization
      Parameters:
      distance - the maximum distance for point skipping
    • getMaxDistance

      public double getMaxDistance()
      Returns the distance limit for point skipping during distance based generalization
      Returns:
      the maximum distance for distance based generalization
    • currentSegment

      public int currentSegment(float[] coords)
      Returns the coordinates and type of the current path segment in the iteration. The return value is the path-segment type: SEG_MOVETO, SEG_LINETO, SEG_QUADTO, SEG_CUBICTO, or SEG_CLOSE. A double array of length 6 must be passed in and can be used to store the coordinates of the point(s). Each point is stored as a pair of double x,y coordinates. SEG_MOVETO and SEG_LINETO types returns one point, SEG_QUADTO returns two points, SEG_CUBICTO returns 3 points and SEG_CLOSE does not return any points.
      Specified by:
      currentSegment in interface PathIterator
      Overrides:
      currentSegment in class AbstractLiteIterator
      Parameters:
      coords - an array that holds the data returned from this method
      Returns:
      the path-segment type of the current path segment.
      See Also:
    • getWindingRule

      public int getWindingRule()
      Returns the winding rule for determining the interior of the path.
      Returns:
      the winding rule.
      See Also:
    • isDone

      public boolean isDone()
      Tests if the iteration is complete.
      Returns:
      true if all the segments have been read; false otherwise.
    • next

      public void next()
      Moves the iterator to the next segment of the path forwards along the primary direction of traversal as long as there are more points in that direction.
    • currentSegment

      public int currentSegment(double[] coords)
      See Also: