All Classes and Interfaces
Class
Description
A node of an
AbstractSTRtree.Base class for STRtree and SIRtree.
A test for intersection between two bounds, necessary because subclasses
of AbstractSTRtree have different implementations of bounds.
Locates all vertices in a geometry which are adjacent
to a given vertex.
Represents an affine transformation on the 2D Cartesian plane.
Builds an
AffineTransformation defined by a set of control vectors.Supports creating
AffineTransformations defined by various kinds of
inputs and transformation mapping rules.Utility functions for working with angles.
Constructs an approximation to the medial axis of a Polygon,
as a set of linestrings representing the medial axis graph.
Functions for computing area.
Measures the degree of similarity between two
Geometrys
using the area of intersection between the geometries.Builds an array of all visited items.
A utility for making programming assertions.
Thrown when the application is in an inconsistent state.
A CoordinateSequence wrapper which
projects 3D coordinates into one of the
three Cartesian axis planes,
using the standard orthonormal projection
(i.e. simply selecting the appropriate ordinates into the XY ordinates).
A base for implementations of
GeometryFunction which provides most
of the required structure.A base for implementations of
GeometryFunction which provides most
of the required structure.Shows basic ways of creating and operating on geometries
Represents a read-only list of contiguous line segments.
An
BinTree (or "Binary Interval Tree")
is a 1-dimensional version of a quadtree.A spatial object in an AbstractSTRtree.
The Class BoundablePairDistanceComparator.
A noder which extracts chains of boundary segments
as
SegmentStrings from a polygonal coverage.An interface for rules which determine whether node points
which are in boundaries of
Lineal geometry components
are in the boundary of the parent geometry collection.A
BoundaryNodeRule which specifies that any points which are endpoints
of lineal components are in the boundary of the
parent geometry.A
BoundaryNodeRule specifies that points are in the
boundary of a lineal geometry iff
the point lies on the boundary of an odd number
of components.A
BoundaryNodeRule which determines that only
endpoints with valency of exactly 1 are on the boundary.A
BoundaryNodeRule which determines that only
endpoints with valency greater than 1 are on the boundary.Computes the boundary of a
Geometry.A noder which extracts boundary line segments
as
SegmentStrings.Finds the approximate maximum distance from a buffer curve to
the originating geometry.
Creates all the raw offset curves for a buffer of a
Geometry.Validates that a given buffer curve lies an appropriate distance
from the input generating it.
Simplifies a buffer input line to
remove concavities with shallow depth.
Computes the buffer of a geometry, for both positive and negative buffer distances.
A value class containing the parameters which
specify how a buffer should be constructed.
A
ResultMatcher which compares the results of
buffer operations for equality, up to the given tolerance.Validates that the result of a buffer operation
is geometrically correct, within a computed tolerance.
A
GeometryOperation which validates the results of the
Geometry buffer() method.An indicator that the app is performing a long operation.
Allows an array of bytes to be used as an
InStream.Allows reading a stream of Java primitive datatypes from an underlying
InStream,
with the representation being in either common byte ordering.Methods to read and write primitive Java datatypes from/to byte
sequences, allowing the byte order to be specified
Provides an efficient method of unioning a collection of
Polygonal geometries.Computes the centroid of a
Geometry of any dimension.Deprecated.
Basic computational geometry algorithms
for geometry and coordinates defined in 3-dimensional Cartesian space.
Implements basic computational geometry algorithms using
DD arithmetic.Example of computing distance and closest points between geometries
using the DistanceOp class.
Utilities for processing
Collections.A class to parse Unix (and DOS/Win)-style application command-lines
Runs an OS command, capturing stdout and stderr
Determines the maximum number of common most-significant
bits in the mantissa of one or numbers.
Provides versions of Geometry spatial functions which use
common bit removal to reduce the likelihood of robustness problems.
Removes common most-significant mantissa bits
from one or more
Geometrys.Extracts a representative
Coordinate
from each connected component of a Geometry.Locates the components of a Geometry
which lie in a target area.
Constructs a concave hull of a set of points.
Constructs a concave hull of a set of polygons, respecting
the polygons as constraints.
A utility class which creates Conforming Delaunay Triangulations
from collections of points and linear constraints, and extract the resulting
triangulation edges or triangles as geometries.
Computes a Conforming Delaunay Triangulation over a set of sites and a set of
linear constraints.
A ConnectedElementPointFilter extracts a single point
from each connected element in a Geometry
(e.g. a polygon, linestring or point)
and returns them in a list.
Extracts a single point
from each connected element in a Geometry
(e.g. a polygon, linestring or point)
and returns them in a list
Finds all connected
Subgraphs of a PlanarGraph.Tests whether the polygon rings in a
GeometryGraph
are consistent.Computes the Constrained Delaunay Triangulation of polygons.
Indicates a failure during constraint enforcement.
An interface for strategies for determining the location of split points on constraint segments.
A vertex in a Constrained Delaunay Triangulation.
An interface for factories which create a
ConstraintVertexExamples of constructing Geometries programmatically.
Computes the convex hull of a
Geometry.A lightweight class used to store coordinates on the 2-dimensional Cartesian plane.
Compares two
Coordinates, allowing for either a 2-dimensional
or 3-dimensional comparison, and handling NaN values correctly.A
CoordinateFilter that creates an array containing every
coordinate in a Geometry.Useful utility functions for handling Coordinate arrays
A
Comparator for Coordinate arrays
modulo their directionality.A
Comparator for Coordinate arrays
in the forward direction of their coordinates,
using lexicographic ordering.A
CoordinateSequence backed by an array of Coordinates.Creates
CoordinateSequences represented as an array of Coordinates.A
CoordinateFilter that counts the total number of coordinates
in a Geometry.An interface for classes which use the values of the coordinates in a
Geometry.A list of
Coordinates, which may
be set to prevent repeated coordinates from occurring in the list.Reduces the precision of the
Coordinates in a
CoordinateSequence to match the supplied PrecisionModel.Useful utility functions for handling Coordinate objects.
The internal representation of a list of coordinates inside a Geometry.
Compares two
CoordinateSequences.A factory to create concrete instances of
CoordinateSequences.An interface for classes which process the coordinates in a
CoordinateSequence.Utility functions for manipulating
CoordinateSequencesCoordinate subclass supporting XY ordinates.
Coordinate subclass supporting XYM ordinates.
Coordinate subclass supporting XYZM ordinates.
Finds gaps in a polygonal coverage.
Validates that a polygon forms a valid polygonal coverage
with the set of polygons adjacent to it.
Simplifies the boundaries of the polygons in a polygonal coverage
while preserving the original coverage topology.
Unions a polygonal coverage in an efficient way.
Unions a valid coverage of polygons or lines
in an efficient way.
Validates a polygonal coverage, and returns the locations of
invalid polygon boundary segments if found.
Creates a curved geometry by replacing the segments
of the input with Cubic Bezier Curves.
Implements extended-precision floating-point numbers
which maintain 106 bits (approximately 30 decimal digits) of precision.
Provides routines to simplify and localize debugging output.
A utility class which creates Delaunay Triangulations
from collections of points and extract the resulting
triangulation edges or triangles as geometries.
Deletes vertices or components within a selection box from a geometry component
Densifies a
Geometry by inserting extra vertices along the line segments
contained in the geometry.A Depth object records the topological depth of the sides
of an Edge for up to two Geometries.
Provides constants representing the dimensions of a point, a curve and a surface.
Represents a directed edge in a
PlanarGraph.A DirectedEdgeStar is an ordered list of outgoing DirectedEdges around a node.
The Fréchet distance is a measure of similarity between curves.
An algorithm for computing a distance metric
which is an approximation to the Hausdorff Distance
based on a discretization of the input
Geometry.A data structure that represents a partition of a set
into disjoint subsets, and allows merging subsets.
Functions to compute distance between basic geometric structures.
Find two points on two 3D
Geometrys which lie within a given distance,
or else are the nearest points on the geometries (in which case this also
provides the distance between the geometries).Find two points on two
Geometrys which lie
within a given distance, or else are the nearest points
on the geometries (in which case this also
provides the distance between the geometries).Computes the Euclidean distance (L2 metric) from a
Coordinate to a Geometry.Computes the Euclidean distance (L2 metric) from a Point to a Geometry.
DoubleBits manipulates Double numbers
by using bit manipulation and bit-field extraction.
Simplifies a
Geometry using the Douglas-Peucker algorithm.Represents an undirected edge of a
PlanarGraph.A framework to visit sets of edge-connected
QuadEdgeTriangles in breadth-first orderModels the end of an edge incident on a node.
A collection of
EdgeEnds which obey the following invariant:
They originate at the same node and have the same direction.An ordered list of
EdgeEndBundles around a RelateNode.A EdgeEndStar is an ordered list of EdgeEnds around a node.
A graph comprised of
HalfEdges.Builds an edge graph from geometries containing edges.
Represents a point on an
edge which intersects with another edge.
A list of edge intersections along an
Edge.A EdgeList is a list of Edges.
Validates that a collection of
Edges is correctly noded.An EdgeSetIntersector computes all the intersections between the
edges in the set.
Nodes a set of edges.
A sequence of
LineMergeDirectedEdges forming one of the lines that will
be output by the line-merging process.A class that gives most of the functionality of DataInputStream, but is endian aware.
Provides versions of Geometry spatial functions which use
enhanced precision techniques to reduce the likelihood of robustness problems.
Example of using
EnhancedPrecisionOp to avoid robustness problemsDefines a rectangular region of the 2D coordinate plane.
Functions for computing distances between
Envelopes.A
ResultMatcher which compares result for equality,
up to the given tolerance.Demonstrates how to implement a CoordinateSequence for a new kind of
coordinate (an
ExtendedCoordinate in this example).Creates ExtendedCoordinateSequenceFactory internally represented
as an array of
ExtendedCoordinates.Extracts a component of a geometry to a new Test Case
Locates the paths to facets (vertices and segments) of
a
Geometry which are within a given tolerance
of a query point.Represents a sequence of facets (points or line segments)
of a
Geometry
specified by a subsequence of a CoordinateSequence.Validates that a collection of
SegmentStrings is correctly noded.Finds if two sets of
SegmentStrings intersect.This class makes it easy to drag and drop files from the operating
system to a Java program.
Implement this inner interface to listen for when files are dropped.
Useful file utilities.
Measures the degree of similarity between two
Geometrys using the Fréchet distance metric.Finds the most likely
Location of a point relative to
the polygonal components of a geometry, using a tolerance value.Constants for GeoJSON objects
Reads a GeoJSON Geometry from a JSON fragment into a
Geometry.Writes
Geometrys as JSON fragments in GeoJSON format.Computes various kinds of common geometric shapes.
A representation of a planar, linear vector geometry.
Computes the area of a geometry using the
EdgeVector summing
approach.Deletes vertices or components from a geometry
which lie inside a given box.
Models a collection of
Geometrys of
arbitrary type and dimension.Maps the members of a
GeometryCollection
into another GeometryCollection via a defined
mapping function.Combines
Geometrys
to produce a GeometryCollection of the most appropriate type.Deletes a component from a geometry.
Geometry classes support the concept of applying
a GeometryComponentFilter
filter to a geometry.Transforms a component in a geometry.
Holds the current
TestCaseEdit.A class which supports creating new
Geometrys
which are modifications of existing ones,
maintaining the same type structure.A
GeometryEditor.GeometryEditorOperation which edits the coordinate list of a Geometry.A interface which specifies an edit operation for Geometries.
A GeometryEditorOperation which does not modify
the input geometry.
A class which supports creating new
Geometrys
which are modifications of existing ones,
maintaining the same type structure.A
GeometryEditorEx.GeometryEditorOperation which edits the coordinate list of a Geometry.A interface which specifies an edit operation for Geometries.
A GeometryEditorOperation which does not modify
the input geometry.
Panel which displays rendered geometries.
Title:
Description:
Copyright: Copyright (c) 2001
Company:
Extracts the components of a given type from a
Geometry.Supplies a set of utility methods for building Geometry objects from lists
of Coordinates.
GeometryCollection classes support the concept of
applying a GeometryFilter to the Geometry.Fixes a geometry to be a valid geometry, while preserving as much as
possible of the shape and location of the input.
A reification of a function which can be executed on a
Geometry, possibly with other arguments.A reification of a function which can be executed on a
Geometry, possibly with other arguments.Invokes a function from registry
or a Geometry method determined by a named operation with a list of arguments,
the first of which is a
Geometry.A registry to manage a collection of
GeometryFunctions.A registry to manage a collection of
GeometryFunctions.Implementations for various geometry functions.
A GeometryGraph is a graph that models a given Geometry
The base class for operations that require
GeometryGraphs.Title:
Description:
Copyright: Copyright (c) 2001
Company:
An
ItemDistance function for
items which are Geometrys,
using the Geometry.distance(Geometry) method.Represents the location of a point on a Geometry.
Models the location of a point on a Geometry
Methods to map various collections
of
Geometrys
via defined mapping functions.An interface for geometry functions that map a geometry input to a geometry output.
An interface for classes which can determine whether
two geometries match, within a given tolerance.
Invokes a named operation on a set of arguments,
the first of which is a
Geometry.Nodes the linework in a list of
Geometrys using Snap-Rounding
to a given PrecisionModel.Interface for classes which execute operations on
Geometrys.Loads a GeometryOperation class
Outputs geometry in a specified format.
Finds a vertex or a point on a segment of a Geometry
which lies within a tolerance of a given point.
Reduces the precision of a
Geometry
according to the supplied PrecisionModel,
ensuring that the result is valid (unless specified otherwise).Snaps the vertices and segments of a
Geometry
to another Geometry's vertices.Container for GML2 Geometry parsing strategies which can be represented in JTS.
Cleans text strings which are supposed
to contain valid text for Geometries
(either WKB, WKB, or GML)
Various constant strings associated with GML format.
A SAX
DefaultHandler which builds Geometrys
from GML2-formatted geometries.Reads a GML2 geometry from an XML fragment into a
Geometry.Writes
Geometrys as XML fragments in GML2 format.A GraphComponent is the parent class for the objects'
that form a graph.
The base class for all graph component classes.
Useful GUI utilities
Represents a directed component of an edge in an
EdgeGraph.Measures the degree of similarity between two
Geometrys
using the Hausdorff distance metric.Represents a homogeneous coordinate in a 2-D coordinate space.
Encodes points as the index along finite planar Hilbert curves.
Generates a
LineString representing the Hilbert Curve
at a given level.Assigns hole rings to shell rings
during polygonization.
Removes holes which match a given predicate.
Implements a "hot pixel" as used in the Snap Rounding algorithm.
A Hilbert-Packed R-tree.
An object that creates an .html file describing the test cases. .gif files
are also created.
Copies point ordinates with no transformation.
Computes a Delaunay Triangulation of a set of
Vertexes, using an
incremental insertion algorithm.Computes the distance between the facets (segments and vertices)
of two
Geometrys
using a Branch-and-Bound algorithm.Determines the
Location of Coordinates relative to
an areal geometry, using indexing for efficiency.An adapter to allow an
InputStream to be used as an InStreamA interface for classes providing an input stream of bytes.
An extendable array of primitive
int values.Finds interior intersections between line segments in
NodedSegmentStrings,
and adds them as nodes
using NodedSegmentString.addIntersection(LineIntersector, int, int, int).Computes an interior point of a
GeometryComputes a point in the interior of an areal geometry.
Computes a point in the interior of an linear geometry.
Computes a point in the interior of an point geometry.
Functions to compute intersection points between lines and line segments.
Computes the possible intersections between two line segments in
NodedSegmentStrings
and adds them to each string
using NodedSegmentString.addIntersection(LineIntersector, int, int, int).Deprecated.
see InteriorIntersectionFinderAdder
Models a Dimensionally Extended Nine-Intersection Model (DE-9IM) matrix.
String constants for DE-9IM matrix patterns for topological relationships.
Represents an (1-dimensional) closed interval on the Real number line.
A contiguous portion of 1D-space.
Provides a test for whether an interval is
so small it should be considered as zero for the purposes of
inserting it into a binary tree.
Removes holes which are invalid due to not being wholly covered by the parent shell.
Thrown when an attempt is made to load a shapefile
which contains an error such as an invlaid shape
Deprecated.
Replaced by org.locationtech.jts.operation.valid.IsSimpleOp
Tests whether a
Geometry is simple as defined by the OGC SFS specification.Implements the algorithms required to compute the
isValid() method
for Geometrys.Boundable wrapper for a non-Boundable spatial object.
A function method which computes the distance
between two
ItemBoundables in an STRtree.A visitor for items in a
SpatialIndex.Nodes a set of
NodedSegmentStrings completely.A CLI to run JTS TestBuilder operations.
Runs an operation according to supplied parameters.
A Swing application which supports
creating geometries and running JTS operations.
The main frame for the JTS Test Builder.
An Exception which indicates a problem during reflection
A command-line utility to execute tests specified in JTS Test XML files.
JTS API version information.
A node of a
KdTree, which represents one or more points in the same location.An implementation of a
KD-Tree
over two dimensions (X and Y).
A Key is a unique identifier for a node in a tree.
A Key is a unique identifier for a node in a quadtree.
Constructs a
Geometry object from the OGC KML representation.An example of using the
GMLHandler class
to read geometry data out of KML files.Writes a formatted string containing the KML representation of a JTS
Geometry.A
Label indicates the topological relationship of a component
of a topology graph to a given Geometry.Constructs the Largest Empty Circle for a set
of obstacle geometries, up to a given accuracy distance tolerance.
Locates
QuadEdges in a QuadEdgeSubdivision,
optimizing the search by starting in the
locality of the last edge found.Functions for computing length.
Supports linear referencing along a linear
Geometry
using the length along the line as the index.Computes the
LinearLocation for a given length
along a linear Geometry.Identifies
Geometry subclasses which
are 1-dimensional and have components which are LineStrings.Extracts all the 1-dimensional (
LineString) components from a Geometry.Builds a linear geometry (
LineString or MultiLineString)
incrementally (point-by-point).An iterator over the components and coordinates of a linear geometry
(
LineStrings and MultiLineStrings.Represents a location along a
LineString or MultiLineString.Examples of Linear Referencing
Models an OGC SFS
LinearRing.Forms JTS LineStrings out of a the graph of
DirectedEdges
created by an OverlayOp.Dissolves the linear components
from a collection of
Geometrys
into a set of maximal-length LineStrings
in which every unique segment appears once only.A
LineIntersector is an algorithm that can both test whether
two line segments intersect and compute the intersection point(s)
if they do.Determines a label point for a LineString,
subject to a constraint envelope.
Limits the segments in a list of segments
to those which intersect an envelope.
A
DirectedEdge of a
LineMergeGraph.An edge of a
LineMergeGraph.Example of using the LineMerger class to sew together a set of fully noded
linestrings.
A planar graph of edges that is analyzed to sew the edges together.
Merges a collection of linear components to form maximal-length linestrings.
Represents a line segment defined by two
Coordinates.Builds a sequence from a set of LineStrings so that
they are ordered end to end.
Models an OGC-style
LineString.Extracts all the
LineString elements from a Geometry.Shows a technique for identifying the location of self-intersections
in a non-simple LineString.
Snaps the vertices and segments of a
LineString
to a set of target snap vertices.MD - Probably obsolete
Constants representing the different topological locations
which can occur in a
Geometry.Supports linear referencing
along a linear
Geometry
using LinearLocations as the index.A
GeometryOperation which logs
the input and output from another
GeometryOperation.A
HalfEdge which supports
marking edges with a boolean flag.Various utility functions for mathematical and numerical operations.
Implements some 2D matrix operations
(in particular, solving systems of linear equations).
A ring of
DirectedEdges which may contain nodes of degree > 2.Constructs the Maximum Inscribed Circle for a
polygonal
Geometry, up to a specified tolerance.Deprecated.
Not robust.
Utility functions to report JVM memory usage.
A simple split point finder which returns the midpoint of the split segment.
A ring of
Edges with the property that no node
has degree greater than 2.Computes the minimum-area rectangle enclosing a
Geometry.Computes the Minimum Bounding Circle (MBC)
for the points in a
Geometry.Computes the Minimum Clearance of a
Geometry.Computes the minimum diameter of a
Geometry.Monotone Chains are a way of partitioning the segments of a linestring to
allow for fast searching of intersections.
Constructs
MonotoneChains
for sequences of Coordinates.MonotoneChains are a way of partitioning the segments of an edge to
allow for fast searching of intersections.
MonotoneChains are a way of partitioning the segments of an edge to
allow for fast searching of intersections.
The action for the internal iterator for performing
overlap queries on a MonotoneChain
The action for the internal iterator for performing
envelope select queries on a MonotoneChain
Encodes points as the index along the planar Morton (Z-order) curve.
Generates a
LineString representing the Morton Curve
at a given level.Reads a
Geometry from a string which is in either WKT, WKBHex
or GML formatReads a
Geometry collection from a file which is in
WKT, WKBHex, GML, GeoJSON, or SHP format.Reads a
Geometry from a string which is in either WKT, WKBHex
or GML formatWrapper for a Shapefile arc.
Models a collection of
LineStrings.Models a collection of
Points.Models a collection of
Polygons.An interface for classes which support adding nodes to
a segment string.
A node of a
Bintree.Represents a node of a
Quadtree.A node in a
PlanarGraphis a location where 0 or more Edges
meet.The base class for nodes in a
Bintree.The base class for nodes in a
Quadtree.Represents a list of contiguous line segments,
and supports noding the segments.
A map of nodes, indexed by the coordinate of the node
A map of
Nodes, indexed by the coordinate of the node.Computes all intersections between segments in a set of
SegmentStrings.Finds non-noded intersections in a set of
SegmentStrings,
if any exist.Validates that a collection of
SegmentStrings is correctly noded.A strategy for finding constraint split points which attempts to maximise the length of the split
segments while preventing further encroachment.
Indicates that an
AffineTransformation
is non-invertible.Indicates that a
HCoordinate has been computed which is
not representable on the Cartesian plane.A
ResultMatcher which always passes.Counts occurrences of objects.
A bounding container for a
Geometry which is in the shape of a general octagon.Methods for computing and working with octants of the Cartesian plane
Octants are numbered as follows:
Computes an offset curve from a geometry.
Computes the raw offset curve for a
single
Geometry component (ring, line or point).Generates points offset by a given distance
from both sides of the midpoint of
all segments in a
Geometry.The parameters for an instance of an option occurring in a command
Specifes the syntax for a single option on a
command line
ToDo:
- add syntax pattern parsing
Syntax patterns are similar to Java type signatures
F - float
I - int
L - long
S - string
B - boolean
+ - one or more
eg: "FIS+" takes a double, int, and one or more Strings
An enumeration of possible Well-Known-Text or Well-Known-Binary ordinates.
Formats numeric values for ordinates
in a consistent, accurate way.
Functions to compute the orientation of basic geometric structures
including point triplets (triangles) and rings.
Utilities to modify the ring orientation of polygonal geometries.
Allows comparing
Coordinate arrays
in an orientation-independent way.An adapter to allow an
OutputStream to be used as an OutStreamA interface for classes providing an output stream of bytes.
Deprecated.
due to impairing performance
Computes the area of the overlay of two polygons without forming
the actual topology of the overlay.
Computes the geometric overlay of two
Geometrys,
using an explicit precision model to allow robust computation.Functions to test using spatial predicates
as a filter in front of overlay operations
to optimize performance.
Performs an overlay operation using
OverlayNG,
providing full robustness by using a series of
increasingly robust (but slower) noding strategies.Creates nodes for use in the
PlanarGraphs constructed during
overlay operations.Computes the geometric overlay of two
Geometrys.Functions to test using spatial predicates
as a filter in front of overlay operations
to optimize performance.
Validates that the result of an overlay operation is
geometrically correct, within a determined tolerance.
A
GeometryOperation which validates the result of overlay operations.A
CoordinateSequence implementation based on a packed arrays.Packed coordinate sequence implementation based on doubles
Packed coordinate sequence implementation based on floats
Builds packed array coordinate sequences.
Parameters passed to a main method (also known as "command-line arguments").
Thrown by a
WKTReader when a parsing problem occurs.Unions a set of polygonal geometries by partitioning them
into connected sets of polygons.
The computation of the
IntersectionMatrix relies on the use of a structure
called a "topology graph".Represents a directed graph which is embeddable in a planar surface.
Models a polygon lying in a plane in 3-dimensional Cartesian space.
Models a plane in 3-dimensional Cartesian space.
Creates an .PNG file for a test case.
Represents a single point.
Constructs
Points from the nodes of an overlay graph.Wrapper for a Shapefile point.
Functions for locating points within basic geometric
structures such as line segments, lines and rings.
Contains a pair of points and the distance between them.
Contains a pair of points and the distance between them.
An interface for classes which create
Shapes to represent
PointShapeFactory.Point
geometries.Transforms a geometry
Coordinate into a Java2D Point,
possibly with a mathematical transformation of the ordinate values.Represents a polygon with linear edges, which may include holes.
Forms
Polygons out of a graph of DirectedEdges.Wrapper for a Shapefile polygon.
Transforms a polygon with holes into a single self-touching (invalid) ring
by joining holes to the exterior shell or to another hole
with out-and-back line segments.
Computes topology-preserving simplified hulls of polygonal geometry.
Example of using Polygonizer class to polygonize a set of fully noded linestrings
Polygonizes a set of
Geometrys which contain linework that
represents the edges of a planar graph.Functions to compute topological information
about nodes (ring intersections) in polygonal geometry.
A
Shape which represents a polygon which may contain holes.Shows polygon structure (shells versus holes)
by symbolizing the rings differently.
Computes a triangulation of each polygon in a
Geometry.Deprecated.
It is now recommended to use Geometry.union() (unary union) instead of this technique.
Indicates the position of a location relative to a
node or edge component of a planar topological structure.
Specifies the precision model of the
Coordinates in a Geometry.The types of Precision Model which JTS supports.
An example showing the results of using different precision models
in computations involving geometric constructions.
Functions to reduce the precision of a geometry
by rounding it to a given precision model.
Functions for computing precision model scale factors
that ensure robust geometry operations.
An interface for classes which prepare
Geometrys
in order to optimize the performance
of repeated calls to specific geometric operations.Shows use of
PreparedGeometry in a batch (repeated) operation.A factory for creating
PreparedGeometrys.Function to execute PreparedGeometry methods which have optimized behaviour.
A
GeometryOperation which uses PreparedGeometrys
for applicable operations.A prepared version for
Lineal geometries.A prepared version for
Puntal geometries.A prepared version for
Polygonal geometries.Deprecated.
A class that represents the edge data structure which implements the quadedge algebra.
An interface for classes which locate an edge in a
QuadEdgeSubdivision
which either contains a given Vertex V
or is an edge of a triangle which contains V.A class that contains the
QuadEdges representing a planar
subdivision that models a triangulation.Models a triangle formed from
QuadEdges in a QuadEdgeSubdivision
which forms a triangulation.Utilities for working with
QuadEdges.Utility functions for working with quadrants of the Euclidean plane.
A Quadtree is a spatial index structure for efficient range querying
of items bounded by 2D rectangles.
Creates random point sets contained in a
region defined by either a rectangular or a polygonal extent.
Creates random point sets
where the points are constrained to lie in the cells of a grid.
Counts the number of segments crossed by a horizontal ray extending to the right
from a given point, in an incremental fashion.
Clips polygonal geometry to a rectangle.
Optimized implementation of the contains spatial predicate
for cases where the first
Geometry is a rectangle.Implementation of the intersects spatial predicate
optimized for the case where one
Geometry is a rectangle.Computes whether a rectangle intersects line segments.
Computes the topological relationship between two Geometries.
Computes the value of topological predicates between two geometries based on the
Dimensionally-Extended 9-Intersection Model (DE-9IM).
Represents a node in the topological graph used to compute spatial relationships.
Implements the simple graph of Nodes and EdgeEnd which is all that is
required to determine topological relationships between Geometries.
Implements the SFS relate() generalized spatial predicate on two
Geometrys.Creates predicate instances for evaluating OGC-standard named topological relationships.
A process object which renders a scene to a graphics context
and allows cancellation.
Implements the appropriate checks for repeated points
(consecutive identical coordinates) as defined in the
JTS spec.
Repeats a function a given number of times.
An interface for classes which can determine whether
two
Results match, within a given tolerance.Clips rings of points to a rectangle.
Implements an algorithm to compute the
sign of a 2x2 determinant for double precision values robustly.
A robust version of
LineIntersector.The root node of a single
Bintree.QuadRoot is the root of a single Quadtree.
Wraps a
Noder and transforms its input
into the integer domain.Demonstrates use of
PreparedGeometrys in a spatial index
to optimize spatial search.Models a constraint segment in a triangulation.
Clips a segment to a rectangle.
A noder which extracts all line segments
as
SegmentStrings.Detects and records an intersection between two
SegmentStrings,
if one exists.Computes the intersection of line segments,
and adds the intersection to the edges containing the segments.
Processes possible intersections detected by a
Noder.Represents an intersection point between two
SegmentStrings.A list of the
SegmentNodes present along a noded SegmentString.Implements a robust method of comparing the relative position of two
points along the same segment.
An intersector for the red-blue intersection problem.
An interface for classes which represent a sequence of contiguous line segments.
Dissolves a noded collection of
SegmentStrings to produce
a set of merged linework with unique segments.A merging strategy which can be used to update the context data of
SegmentStrings
which are merged during the dissolve process.Utility methods for processing
SegmentStrings.A
PathIterator which provides paths for a collection of Shapes.Thrown when an error relating to the shapefile
occurs
Thrown when an attempt is made to load a shapefile
which contains a shape type that is not supported
by the loader
A visitor to
Geometry components, which
allows short-circuiting when a defined condition holds.An interface for classes which measures the degree of similarity between two
Geometrys.Provides methods to mathematically combine
SimilarityMeasure values.Finds all intersections in one or two sets of edges,
using the straightforward method of
comparing all segments.
Deprecated.
use GeometryPrecisionReducer
Finds all intersections in one or two sets of edges,
using an x-axis sweepline algorithm in conjunction with Monotone Chains.
An example showing a simple use of JTS methods for:
WKT reading
intersection
relate
WKT output
Computes the minimum clearance of a geometry or
set of geometries.
Nodes a set of
SegmentStrings by
performing a brute-force comparison of every segment to every other one.Computes the result area of an overlay usng the Overlay-Area, for simple polygons.
Intersects two sets of
SegmentStrings using
brute-force comparison.Finds all intersections in one or two sets of edges,
using a simple x-axis sweepline algorithm.
Creates geometries which are shaped like multi-armed stars
with each arm shaped like a sine wave.
Base class for
Noders which make a single
pass to find intersections.One-dimensional version of an STR-packed R-tree.
Removes holes which are smaller than a given area.
Performs an overlay operation using snapping and enhanced precision
to improve the robustness of the result.
Performs an overlay operation using snapping and enhanced precision
to improve the robustness of the result.
Implementations for various geometry functions.
Finds intersections between line segments which are being snapped,
and adds them as nodes.
Nodes a set of segment strings
snapping vertices and intersection points together if
they lie within the given snap tolerance distance.
An index providing fast creation and lookup of snap points.
Finds intersections between line segments which will be snap-rounded,
and adds them as nodes to the segments.
Uses Snap Rounding to compute a rounded,
fully noded arrangement from a set of
SegmentStrings,
in a performant way, and avoiding unnecessary noding.A static index on a set of 1-dimensional intervals,
using an R-Tree packed based on the order of the interval midpoints.
Unions a set of polygonal geometries by partitioning them
into connected sets of polygons.
Title:
Description:
Copyright: Copyright (c) 2001
Company:
Title:
Description:
Copyright: Copyright (c) 2001
Company:
The basic operations supported by classes
implementing spatial index algorithms.
Computes a partition of a set of geometries into disjoint subsets,
based on a provided equivalence
SpatialPartition.EquivalenceRelation.An interface for a function to compute an equivalence relation.
Implementations for spatial predicate functions.
Models a constraint segment which can be split in two in various ways,
according to certain geometric constraints.
A
GeometryFunction which calls a static
Method.A
GeometryFunction which calls a static
Method.Implements a timer function which can compute
elapsed time as well as split times.
Models a vertex of a Geometry which will be stretched
due to being too near other segments and vertices.
Utility methods for working with
Strings.Useful string utilities
A query-only R-tree created using the Sort-Tile-Recursive (STR) algorithm.
Contains a list of styles and allows Geometrys
to be rendered using those styles.
A subgraph of a
PlanarGraph.Writes the SVG representation of a
Geometry.A sweepline implements a sorted index on a set of intervals.
An action taken when a
SweepLineIndex detects that two
SweepLineIntervals overlapThis is the 3rd version of SwingWorker (also known as
SwingWorker 3), an abstract class that you subclass to
perform GUI-related work in a dedicated thread.
Simplifies a TaggedLineString, preserving topology
(in the sense that no new intersections are introduced).
A
GeometryOperation which executes the original operation
and returns that result,
but also executes a separate operation (which could be multiple operations).A test for two geometries.
Encapsulates test case cursor logic.
A proxy to call TestBuilder functions.
A set of tests for two Geometry's.
Geometry functions which
augment the existing methods on
Geometry,
for use in XML Test files.Geometry functions which
augment the existing methods on
Geometry,
for use in XML Test files.Create the CoordinateSequenceFactory to be used in tests
Converts test File's to TestCase's and runs them.
Contains the Geometry objects which the JTS Test Builder
operates on
WIP
Idea: draw inside buffer instead of band - avoids need for different op.
Indicates an invalid or inconsistent topological situation encountered during processing
A TopologyLocation is the labelling of a
GraphComponent's topological relationship to a single Geometry.
The API for strategy classes implementing
spatial predicates based on the DE-9IM topology model.
Traces the evaluation of a
TopologyPredicate.Simplifies a geometry and ensures that
the result is a valid geometry having the
same dimension and number of components as the input,
and with the components having the same topological relationship.
Stretches the vertices and segments of a @link Geometry}
to make the topology more visible.
Contains information about the nature and location of a
Geometry
validation errorInterface for classes which process triangles visited during traversals of a
QuadEdgeSubdivisionA memory-efficient representation of a triangle in a triangulation.
Represents a planar triangle, and provides methods for calculating various
properties of triangles.
Algorithms for computing values and predicates
associated with triangles.
An interface for algorithms which process the triangles in a
QuadEdgeSubdivision.Builds a triangulation from a set of
Tris
by populating the links to adjacent triangles.Reads a
Geometry encoded into TWKB (Tiny Well-known Binary).Writes
Geometrys in TWKB (Tiny Well-known Binary) format.Unions a geometry or collection of geometries in an
efficient way, using
OverlayNG
to ensure robust computation.Experimental code to union MultiPolygons
with processing limited to the elements which actually interact.
A strategy class that adapts UnaryUnion to different
kinds of overlay algorithms.
A
CoordinateFilter that extracts a unique array of Coordinates.A wrapper for
Noders which validates
the output arrangement is correctly noded.Title:
Description:
Copyright: Copyright (c) 2001
Company:
Title:
Description:
Copyright: Copyright (c) 2001
Company:
Creates a buffer polygon with a varying buffer distance
at each vertex along a line.
A 2-dimensional mathematical vector represented by double-precision X and Y components.
Represents a vector in 3-dimensional Cartesian space.
Models a site (node) in a
QuadEdgeSubdivision.A semi-static spatial index for points which occur
in a spatially-coherent sequence.
Creates a map between the vertex
Coordinates of a
set of Geometrys,
and the parent geometry, and transfers the source geometry
data objects to geometry components tagged with the coordinates.Maintains the information associated with mapping
the model view to the screen
Settings to configure the appearance of the Geometry View.
A utility class which creates Voronoi Diagrams
from collections of points.
Simplifies a
Geometry using the Visvalingam-Whyatt area-based algorithm.Constant values used by the WKB format
Dumps out WKB in a structured formatted way.
Dumps out WKB in a structured formatted text display.
Reads a sequence of
Geometrys in WKBHex format
from a text file.Reads a
Geometryfrom a byte stream in Well-Known Binary format.Writes a
Geometry into Well-Known Binary format.Constants used in the WKT (Well-Known Text) format.
Reads a sequence of
Geometrys in WKT format
from a text file.Reads a
Geometry from a string which is in either WKT or WKBHex formatConverts a geometry in Well-Known Text format to a
Geometry.Writes the Well-Known Text representation of a
Geometry.
Length,Area,Distance,Orientation,PointLocation