com.vividsolutions.jts.operation.buffer
Class BufferBuilder
java.lang.Object
com.vividsolutions.jts.operation.buffer.BufferBuilder
public class BufferBuilder
extends java.lang.Object
Builds the buffer geometry for a given input geometry and precision model.
Allows setting the level of approximation for circular arcs,
and the precision model in which to carry out the computation.
When computing buffers in floating point double-precision
it can happen that the process of iterated noding can fail to converge (terminate).
In this case a TopologyException will be thrown.
Retrying the computation in a fixed precision
can produce more robust results.
BufferBuilder
public BufferBuilder()
Creates a new BufferBuilder
insertEdge
protected void insertEdge(Edge e)
Inserted edges are checked to see if an identical edge already exists.
If so, the edge is not inserted, but its label is merged
with the existing edge.
setEndCapStyle
public void setEndCapStyle(int endCapStyle)
setQuadrantSegments
public void setQuadrantSegments(int quadrantSegments)
Sets the number of segments used to approximate a angle fillet
quadrantSegments
- the number of segments in a fillet for a quadrant
setWorkingPrecisionModel
public void setWorkingPrecisionModel(PrecisionModel pm)
Sets the precision model to use during the curve computation and noding,
if it is different to the precision model of the Geometry.
If the precision model is less than the precision of the Geometry precision model,
the Geometry must have previously been rounded to that precision.
pm
- the precision model to use