Package org.hortonmachine.gears.io.dxfdwg.libs.dwg.utils

Class GisModelCurveCalculator

java.lang.Object

org.hortonmachine.gears.io.dxfdwg.libs.dwg.utils.GisModelCurveCalculator

public class GisModelCurveCalculator
extends Object

This class allows to obtain arcs and circles given by the most usual parameters, in a Gis geometry model. In this model, an arc or a circle is given by a set of points that defines it shape

Author:

jmorell

Constructor Summary

Constructors

Constructor	Description
GisModelCurveCalculator()

Method Summary

Modifier and Type	Method	Description
static Point2D[]	calculateGisModelArc(Point2D c, double r, double sa, double ea)	This method calculates an array of Point2D that represents an arc.
static Point2D[]	calculateGisModelBulge(Point2D[] newPts, double[] bulges)	This method applies an array of bulges to an array of Point2D that defines a polyline.
static Point2D[]	calculateGisModelCircle(Point2D c, double r)	This method calculates an array of Point2D that represents a circle.
static Point2D[]	calculateGisModelEllipse(Point2D center, Point2D majorAxisVector, double axisRatio, double initAngle, double endAngle)	This method calculates an array of Point2D that represents a ellipse.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

GisModelCurveCalculator

public GisModelCurveCalculator()

Method Detail

calculateGisModelCircle

public static Point2D[] calculateGisModelCircle(Point2D c,
                                                double r)

This method calculates an array of Point2D that represents a circle. The distance between it points is 1 angular unit

Parameters:

c - Point2D that represents the center of the circle

r - double value that represents the radius of the circle

Returns:

Point2D[] An array of Point2D that represents the shape of the circle

calculateGisModelEllipse

public static Point2D[] calculateGisModelEllipse(Point2D center,
                                                 Point2D majorAxisVector,
                                                 double axisRatio,
                                                 double initAngle,
                                                 double endAngle)

This method calculates an array of Point2D that represents a ellipse. The distance between it points is 1 angular unit

Parameters:

center - Point2D that represents the center of the ellipse

majorAxisVector - Point2D that represents the vector for the major axis

axisRatio - double value that represents the axis ratio

initAngle - double value that represents the start angle of the ellipse arc

endAngle - double value that represents the end angle of the ellipse arc

Returns:

Point2D[] An array of Point2D that represents the shape of the ellipse

calculateGisModelArc

public static Point2D[] calculateGisModelArc(Point2D c,
                                             double r,
                                             double sa,
                                             double ea)

This method calculates an array of Point2D that represents an arc. The distance between it points is 1 angular unit

Parameters:

c - Point2D that represents the center of the arc

r - double value that represents the radius of the arc

sa - double value that represents the start angle of the arc

ea - double value that represents the end angle of the arc

Returns:

Point2D[] An array of Point2D that represents the shape of the arc

calculateGisModelBulge

public static Point2D[] calculateGisModelBulge(Point2D[] newPts,
                                               double[] bulges)

This method applies an array of bulges to an array of Point2D that defines a polyline. The result is a polyline with the input points with the addition of the points that define the new arcs added to the polyline

Parameters:

newPts - Base points of the polyline

bulges - Array of bulge parameters

Returns:

Polyline with a new set of arcs added and defined by the bulge parameters