```
public class Contour
extends Object
```
Contour class - including the functions of contour

版本:

$Revision: 1.6.1 $

作者:

Yaqiang Wang

构造器概要

构造器
构造器说明

Contour()

方法概要

所有方法静态方法具体方法
修饰符和类型	方法	说明
`static List<Polygon>`	`clipPolygons(List<Polygon> polygons, List<PointD> clipPList)`	Clip polygons with a border polygon
`static List<PolyLine>`	`clipPolylines(List<PolyLine> polylines, List<PointD> clipPList)`	Clip polylines with a border polygon
`static List<Polygon>`	`createCutContourPolygons(List<PolyLine> LineList, List<PointD> polyList, Extent aBound, double[] contour)`	Create polygons from cutted contour lines
`static List<PolyLine>`	`cutContourLines(List<PolyLine> alinelist, Border aBorder)`	Cut contour lines with a polygon.
`static List<PolyLine>`	`cutContourWithPolygon(List<PolyLine> alinelist, List<PointD> polyList)`	Cut contour lines with a polygon.
`static PointF`	`getCrossPoint(PointF aP1, PointF aP2, PointF bP1, PointF bP2)`	Get cross point of two line segments
`static String`	`getVersion()`	Get version
`static boolean`	`isClockwise(List<PointD> pointList)`	Determine if the point list is clockwise
`static boolean`	`pointInPolygon(List<PointD> poly, PointD aPoint)`	Judge if a point is in a polygon
`static boolean`	`pointInPolygon(Polygon aPolygon, PointD aPoint)`	Judge if a point is in a polygon
`static List<PolyLine>`	`smoothLines(List<PolyLine> aLineList)`	Smooth polylines
`static List<PointD>`	`smoothPoints(List<PointD> pointList)`	Smooth points
`static List<Border>`	`tracingBorders(double[][] S0, double[] X, double[] Y, int[][] S1, double undefData)`	Tracing contour borders of the grid data with undefined data.
`static List<PolyLine>`	`tracingContourLines(double[][] S0, double[] X, double[] Y, int nc, double[] contour, double undefData, List<Border> borders, int[][] S1)`	Tracing contour lines from the grid data with undefine data
`static List<Polygon>`	`tracingPolygons(double[][] S0, List<PolyLine> cLineList, List<Border> borderList, double[] contour)`	Tracing polygons from contour lines and borders
`static List<PolyLine>`	`tracingStreamline(double[][] U, double[][] V, double[][] X, double[][] Y, int density)`	Tracing stream lines
`static List<PolyLine>`	`tracingStreamline(double[][] U, double[][] V, double[] X, double[] Y, double UNDEF, int density)`	Tracing stream lines
`static List<PolyLine>`	`tracingStreamline(double[][] U, double[][] V, double[] X, double[] Y, int density)`	Tracing stream lines
`static List<PolyLine3D>`	`tracingStreamline3D(double[][][] U, double[][][] V, double[][][] W, double[][][] M, double[][][] X, double[][][] Y, double[][][] Z, int density, double[] sX, double[] sY, double[] sZ, int loopLimit)`	Tracing 3D stream lines
`static List<PolyLine3D>`	`tracingStreamline3D(double[][][] U, double[][][] V, double[][][] W, double[][][] M, double[][][] X, double[][][] Y, double[][][] Z, int density, int loopLimit)`	Tracing 3D stream lines
`static List<PolyLine3D>`	`tracingStreamline3D(double[][][] U, double[][][] V, double[][][] W, double[][][] M, double[] X, double[] Y, double[] Z, int density, double[] sX, double[] sY, double[] sZ, int loopLimit)`	Tracing 3D stream lines
`static List<PolyLine3D>`	`tracingStreamline3D(double[][][] U, double[][][] V, double[][][] W, double[][][] M, double[] X, double[] Y, double[] Z, int density, int loopLimit)`	Tracing 3D stream lines

从类继承的方法 java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

构造器详细资料
- Contour
```
public Contour()
```

方法详细资料

getVersion
```
public static String getVersion()
```
Get version

返回:

Version

tracingContourLines

public static List<PolyLine> tracingContourLines(double[][] S0,
                                                 double[] X,
                                                 double[] Y,
                                                 int nc,
                                                 double[] contour,
                                                 double undefData,
                                                 List<Border> borders,
                                                 int[][] S1)

Tracing contour lines from the grid data with undefine data

参数:: S0 - input grid data; X - X coordinate array; Y - Y coordinate array; nc - number of contour values; contour - contour value array; undefData - Undefine data; borders - borders; S1 - data flag array
返回:: Contour line list

tracingBorders
```
public static List<Border> tracingBorders(double[][] S0,
                                          double[] X,
                                          double[] Y,
                                          int[][] S1,
                                          double undefData)
```
Tracing contour borders of the grid data with undefined data. Grid data are from left to right and from bottom to top. Grid data array: first dimention is Y, second dimention is X.

参数:

S0 - input grid data

X - x coordinate array

Y - y coordinate array

S1 - data flag array

undefData - undefine data

返回:

borderline list

cutContourWithPolygon

public static List<PolyLine> cutContourWithPolygon(List<PolyLine> alinelist,
                                                   List<PointD> polyList)

Cut contour lines with a polygon. Return the polylines inside of the polygon

参数:: alinelist - polyline list; polyList - border points of the cut polygon
返回:: Inside Polylines after cut

cutContourLines

public static List<PolyLine> cutContourLines(List<PolyLine> alinelist,
                                             Border aBorder)

Cut contour lines with a polygon. Return the polylines inside of the polygon

参数:: alinelist - polyline list; aBorder - border for clipping
返回:: inside plylines after clipping

smoothLines
```
public static List<PolyLine> smoothLines(List<PolyLine> aLineList)
```
Smooth polylines

参数:

aLineList - polyline list

返回:

polyline list after smoothing

smoothPoints
```
public static List<PointD> smoothPoints(List<PointD> pointList)
```
Smooth points

参数:

pointList - point list

返回:

smoothed point list

tracingPolygons

public static List<Polygon> tracingPolygons(double[][] S0,
                                            List<PolyLine> cLineList,
                                            List<Border> borderList,
                                            double[] contour)

Tracing polygons from contour lines and borders

参数:: S0 - input grid data; cLineList - contour lines; borderList - borders; contour - contour values
返回:: traced contour polygons

createCutContourPolygons

public static List<Polygon> createCutContourPolygons(List<PolyLine> LineList,
                                                     List<PointD> polyList,
                                                     Extent aBound,
                                                     double[] contour)

Create polygons from cutted contour lines

参数:: LineList - polylines; polyList - border point list; aBound - extent; contour - contour values
返回:: contour polygons

pointInPolygon

public static boolean pointInPolygon(List<PointD> poly,
                                     PointD aPoint)

Judge if a point is in a polygon

参数:: poly - polygon border; aPoint - point
返回:: if the point is in the polygon

pointInPolygon

public static boolean pointInPolygon(Polygon aPolygon,
                                     PointD aPoint)

Judge if a point is in a polygon

参数:: aPolygon - polygon; aPoint - point
返回:: if the point is in the polygon

clipPolylines

public static List<PolyLine> clipPolylines(List<PolyLine> polylines,
                                           List<PointD> clipPList)

Clip polylines with a border polygon

参数:: polylines - polyline list; clipPList - clipping border point list
返回:: clipped polylines

clipPolygons

public static List<Polygon> clipPolygons(List<Polygon> polygons,
                                         List<PointD> clipPList)

Clip polygons with a border polygon

参数:: polygons - polygon list; clipPList - clipping border point list
返回:: clipped polygons

tracingStreamline

public static List<PolyLine> tracingStreamline(double[][] U,
                                               double[][] V,
                                               double[] X,
                                               double[] Y,
                                               double UNDEF,
                                               int density)

Tracing stream lines

参数:: U - U component array; V - V component array; X - X coordinate array; Y - Y coordinate array; UNDEF - undefine data; density - stream line density
返回:: streamlines

tracingStreamline

public static List<PolyLine> tracingStreamline(double[][] U,
                                               double[][] V,
                                               double[] X,
                                               double[] Y,
                                               int density)

Tracing stream lines

参数:: U - U component array; V - V component array; X - X coordinate array; Y - Y coordinate array; density - stream line density
返回:: streamlines

tracingStreamline

public static List<PolyLine> tracingStreamline(double[][] U,
                                               double[][] V,
                                               double[][] X,
                                               double[][] Y,
                                               int density)

Tracing stream lines

参数:: U - U component array; V - V component array; X - X coordinate array; Y - Y coordinate array; density - stream line density
返回:: streamlines

tracingStreamline3D

public static List<PolyLine3D> tracingStreamline3D(double[][][] U,
                                                   double[][][] V,
                                                   double[][][] W,
                                                   double[][][] M,
                                                   double[] X,
                                                   double[] Y,
                                                   double[] Z,
                                                   int density,
                                                   int loopLimit)

Tracing 3D stream lines

参数:: U - U component array; V - V component array; W - W component array; M - Measurement value array; X - X coordinate array; Y - Y coordinate array; Z - Z coordinate array; density - stream line density; loopLimit - Limit loop number
返回:: streamlines

tracingStreamline3D

public static List<PolyLine3D> tracingStreamline3D(double[][][] U,
                                                   double[][][] V,
                                                   double[][][] W,
                                                   double[][][] M,
                                                   double[] X,
                                                   double[] Y,
                                                   double[] Z,
                                                   int density,
                                                   double[] sX,
                                                   double[] sY,
                                                   double[] sZ,
                                                   int loopLimit)

Tracing 3D stream lines

参数:: U - U component array; V - V component array; W - W component array; M - Measurement value array; X - X coordinate array; Y - Y coordinate array; Z - Z coordinate array; density - stream line density; loopLimit - Limit loop number
返回:: streamlines

tracingStreamline3D

public static List<PolyLine3D> tracingStreamline3D(double[][][] U,
                                                   double[][][] V,
                                                   double[][][] W,
                                                   double[][][] M,
                                                   double[][][] X,
                                                   double[][][] Y,
                                                   double[][][] Z,
                                                   int density,
                                                   int loopLimit)

Tracing 3D stream lines

参数:: U - U component array; V - V component array; W - W component array; M - Measurement value array; X - X coordinate array; Y - Y coordinate array; Z - Z coordinate array; density - Streamline density; loopLimit - Limit loop number
返回:: streamlines

tracingStreamline3D

public static List<PolyLine3D> tracingStreamline3D(double[][][] U,
                                                   double[][][] V,
                                                   double[][][] W,
                                                   double[][][] M,
                                                   double[][][] X,
                                                   double[][][] Y,
                                                   double[][][] Z,
                                                   int density,
                                                   double[] sX,
                                                   double[] sY,
                                                   double[] sZ,
                                                   int loopLimit)

Tracing 3D stream lines

参数:: U - U component array; V - V component array; W - W component array; M - Measurement value array; X - X coordinate array; Y - Y coordinate array; Z - Z coordinate array; density - Streamline density; loopLimit - Limit loop number
返回:: streamlines

isClockwise
```
public static boolean isClockwise(List<PointD> pointList)
```
Determine if the point list is clockwise

参数:

pointList - point list

返回:

is or not clockwise

getCrossPoint

public static PointF getCrossPoint(PointF aP1,
                                   PointF aP2,
                                   PointF bP1,
                                   PointF bP2)

Get cross point of two line segments

参数:: aP1 - point 1 of line a; aP2 - point 2 of line a; bP1 - point 1 of line b; bP2 - point 2 of line b
返回:: cross point

类 Contour

构造器概要

方法概要

从类继承的方法 java.lang.Object

构造器详细资料

Contour

方法详细资料

getVersion

tracingContourLines

tracingBorders

cutContourWithPolygon

cutContourLines

smoothLines

smoothPoints

tracingPolygons

createCutContourPolygons

pointInPolygon

pointInPolygon

clipPolylines

clipPolygons

tracingStreamline

tracingStreamline

tracingStreamline

tracingStreamline3D

tracingStreamline3D

tracingStreamline3D

tracingStreamline3D

isClockwise

getCrossPoint