java.lang.Object
- com.esri.core.geometry.Bufferer

```
class Bufferer
extends java.lang.Object
```

Nested Class Summary

Nested Classes
Modifier and Type	Class	Description
`private static class`	`Bufferer.BufferCommand`
`private static class`	`Bufferer.GeometryCursorForMultiPoint`
`private static class`	`Bufferer.GeometryCursorForPolygon`
`private static class`	`Bufferer.GeometryCursorForPolyline`
`private static class`	`Bufferer.GlueingCursorForPolyline`

Field Summary

Fields
Modifier and Type	Field	Description
`private double`	`m_abs_distance`
`private double`	`m_abs_distance_reversed`
`private boolean`	`m_b_output_loops`
`private boolean`	`m_bfilter`
`private java.util.ArrayList<Bufferer.BufferCommand>`	`m_buffer_commands`
`private java.util.ArrayList<Point2D>`	`m_circle_template`
`private int`	`m_circle_template_size`
`private double`	`m_dA`
`private double`	`m_densify_dist`
`private double`	`m_distance`
`private double`	`m_filter_tolerance`
`private Geometry`	`m_geometry`
`private Point2D[]`	`m_helper_array`
`private Line`	`m_helper_line_1`
`private Line`	`m_helper_line_2`
`private java.util.ArrayList<Point2D>`	`m_left_stack`
`private int`	`m_max_vertex_in_complete_circle`
`private java.util.ArrayList<Point2D>`	`m_middle_stack`
`private int`	`m_old_circle_template_size`
`private int`	`m_original_geom_type`
`private int`	`m_progress_counter`
`private ProgressTracker`	`m_progress_tracker`
`private double`	`m_small_tolerance`
`private SpatialReference`	`m_spatialReference`
`private double`	`m_tolerance`

Constructor Summary

Constructors
Constructor Description

Bufferer()

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`private void`	`addCircle_(MultiPathImpl result_mp, Point point)`
`private void`	`addJoin_(MultiPathImpl dst, Point2D center, Point2D fromPt, Point2D toPt, boolean bStartPath, boolean bFinishAtToPt)`
`(package private) Geometry`	`buffer(Geometry geometry, double distance, SpatialReference sr, double densify_dist, int max_vertex_in_complete_circle, ProgressTracker progress_tracker)`	Result is always a polygon.
`private Geometry`	`buffer_()`
`private Polygon`	`bufferCleanup_(MultiPath multi_path, boolean simplify_result)`
`private int`	`bufferClosedPath_(Geometry input_geom, int ipath, MultiPathImpl result_mp, boolean bfilter, int dir)`
`private Polygon`	`bufferConvexPath_(MultiPath src, int ipath)`
`private Geometry`	`bufferEnvelope_()`
`private Geometry`	`bufferMultiPoint_()`
`private Geometry`	`bufferPoint_()`
`private Geometry`	`bufferPoint_(Point point)`
`private Geometry`	`bufferPolygon_()`
`private Polygon`	`bufferPolygonImpl_(Polygon input_geom, int ipath_begin, int ipath_end)`
`private Geometry`	`bufferPolyline_()`
`private Polygon`	`bufferPolylinePath_(Polyline polyline, int ipath, boolean bfilter)`
`private int`	`calcN_()`
`private int`	`cleanupBufferCommands_()`
`private static int`	`clipFilter_(EditShape edit_shape, int fixed_vertices_index, int from_vertex, int to_vertex, int dir, double abs_distance, double densify_distance, int max_filter)`
`private static int`	`filterPath_(EditShape edit_shape, int geom, int dir, boolean closed, double abs_distance, double filter_tolerance, double densify_distance)`
`private void`	`generateCircleTemplate_()`
`private boolean`	`isDegenerateGeometry_(Geometry geom)`
`private boolean`	`isDegeneratePath_(MultiPathImpl mp_impl, int ipath)`
`private Polyline`	`preparePolyline_(Polyline input_geom)`
`private void`	`processBufferCommands_(MultiPathImpl result_mp)`
`private void`	`progress_()`
`private static void`	`protectExtremeVertices_(EditShape edit_shape, int protection_index, int geom, int path)`
`private Polygon`	`setStrongSimple_(Polygon poly)`
`private static Polygon`	`setWeakSimple_(Polygon poly)`

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

Field Detail

m_geometry
```
private Geometry m_geometry
```

m_buffer_commands

private java.util.ArrayList<Bufferer.BufferCommand> m_buffer_commands

m_original_geom_type
```
private int m_original_geom_type
```

m_progress_tracker

private ProgressTracker m_progress_tracker

m_max_vertex_in_complete_circle

private int m_max_vertex_in_complete_circle

m_spatialReference

private SpatialReference m_spatialReference

m_tolerance
```
private double m_tolerance
```

m_small_tolerance
```
private double m_small_tolerance
```

m_filter_tolerance
```
private double m_filter_tolerance
```

m_densify_dist
```
private double m_densify_dist
```

m_distance
```
private double m_distance
```

m_abs_distance
```
private double m_abs_distance
```

m_abs_distance_reversed
```
private double m_abs_distance_reversed
```

m_dA
```
private double m_dA
```

m_b_output_loops
```
private boolean m_b_output_loops
```

m_bfilter
```
private boolean m_bfilter
```

m_circle_template

private java.util.ArrayList<Point2D> m_circle_template

m_left_stack

private java.util.ArrayList<Point2D> m_left_stack

m_middle_stack

private java.util.ArrayList<Point2D> m_middle_stack

m_helper_line_1
```
private Line m_helper_line_1
```

m_helper_line_2
```
private Line m_helper_line_2
```

m_helper_array
```
private Point2D[] m_helper_array
```

m_progress_counter
```
private int m_progress_counter
```

m_circle_template_size
```
private int m_circle_template_size
```

m_old_circle_template_size
```
private int m_old_circle_template_size
```

Constructor Detail
- Bufferer
```
Bufferer()
```

Method Detail

buffer

Geometry buffer(Geometry geometry,
                double distance,
                SpatialReference sr,
                double densify_dist,
                int max_vertex_in_complete_circle,
                ProgressTracker progress_tracker)

Result is always a polygon. For non positive distance and non-areas returns an empty polygon. For points returns circles.

generateCircleTemplate_

private void generateCircleTemplate_()

buffer_
```
private Geometry buffer_()
```

bufferPolyline_
```
private Geometry bufferPolyline_()
```

bufferPolygon_
```
private Geometry bufferPolygon_()
```

bufferPolygonImpl_

private Polygon bufferPolygonImpl_(Polygon input_geom,
                                   int ipath_begin,
                                   int ipath_end)

bufferPoint_
```
private Geometry bufferPoint_()
```

bufferPoint_

private Geometry bufferPoint_(Point point)

bufferMultiPoint_
```
private Geometry bufferMultiPoint_()
```

bufferEnvelope_
```
private Geometry bufferEnvelope_()
```

bufferConvexPath_

private Polygon bufferConvexPath_(MultiPath src,
                                  int ipath)

bufferPolylinePath_

private Polygon bufferPolylinePath_(Polyline polyline,
                                    int ipath,
                                    boolean bfilter)

progress_
```
private void progress_()
```

bufferCleanup_

private Polygon bufferCleanup_(MultiPath multi_path,
                               boolean simplify_result)

calcN_
```
private int calcN_()
```

addJoin_

private void addJoin_(MultiPathImpl dst,
                      Point2D center,
                      Point2D fromPt,
                      Point2D toPt,
                      boolean bStartPath,
                      boolean bFinishAtToPt)

bufferClosedPath_

private int bufferClosedPath_(Geometry input_geom,
                              int ipath,
                              MultiPathImpl result_mp,
                              boolean bfilter,
                              int dir)

processBufferCommands_

private void processBufferCommands_(MultiPathImpl result_mp)

cleanupBufferCommands_
```
private int cleanupBufferCommands_()
```

protectExtremeVertices_

private static void protectExtremeVertices_(EditShape edit_shape,
                                            int protection_index,
                                            int geom,
                                            int path)

filterPath_

private static int filterPath_(EditShape edit_shape,
                               int geom,
                               int dir,
                               boolean closed,
                               double abs_distance,
                               double filter_tolerance,
                               double densify_distance)

clipFilter_

private static int clipFilter_(EditShape edit_shape,
                               int fixed_vertices_index,
                               int from_vertex,
                               int to_vertex,
                               int dir,
                               double abs_distance,
                               double densify_distance,
                               int max_filter)

isDegeneratePath_

private boolean isDegeneratePath_(MultiPathImpl mp_impl,
                                  int ipath)

isDegenerateGeometry_

private boolean isDegenerateGeometry_(Geometry geom)

preparePolyline_

private Polyline preparePolyline_(Polyline input_geom)

addCircle_

private void addCircle_(MultiPathImpl result_mp,
                        Point point)

setWeakSimple_

private static Polygon setWeakSimple_(Polygon poly)

setStrongSimple_

private Polygon setStrongSimple_(Polygon poly)

Class Bufferer

Nested Class Summary

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

m_geometry

m_buffer_commands

m_original_geom_type

m_progress_tracker

m_max_vertex_in_complete_circle

m_spatialReference

m_tolerance

m_small_tolerance

m_filter_tolerance

m_densify_dist

m_distance

m_abs_distance

m_abs_distance_reversed

m_dA

m_b_output_loops

m_bfilter

m_circle_template

m_left_stack

m_middle_stack

m_helper_line_1

m_helper_line_2

m_helper_array

m_progress_counter

m_circle_template_size

m_old_circle_template_size

Constructor Detail

Bufferer

Method Detail

buffer

generateCircleTemplate_

buffer_

bufferPolyline_

bufferPolygon_

bufferPolygonImpl_

bufferPoint_

bufferPoint_

bufferMultiPoint_

bufferEnvelope_

bufferConvexPath_

bufferPolylinePath_

progress_

bufferCleanup_

calcN_

addJoin_

bufferClosedPath_

processBufferCommands_

cleanupBufferCommands_

protectExtremeVertices_

filterPath_

clipFilter_

isDegeneratePath_

isDegenerateGeometry_

preparePolyline_

addCircle_

setWeakSimple_

setStrongSimple_