Package com.luciad.geometry.cartesian

Interface ILcdContourFactory

All Known Implementing Classes:

TLcdContourFactory, TLcdLonLatContourFactory

public interface ILcdContourFactory

Deprecated.

Use TLcdPolylineContourFinder or TLcdComplexPolygonContourFinder. This class relies on deprecated contour finding algorithms. The output of the new contour finding algorithms are much more practical to work as they split up contours into two separate, disambiguous, concepts that can be retrieved individually. TLcdPolylineContourFinder finds contour lines of equal height, much like this class, except that it doesn't close the shapes to represent an area. TLcdComplexPolygonContourFinder finds complex polygons instead of the simple polygons of this class. This allows them to model interval areas with holes.

ILcdContourFactory is a Factory class to create an ILcdValuedPolygon from separate arrays of x- and y-coordinates.

Method Summary

Modifier and Type	Method	Description
ILcdValuedPolygon	createContour(double[] aXArray, double[] aYArray, int aNumberOfPoints, double aLevel)	Deprecated. Creates an ILcdValuedPolygon from separate arrays of x- and y-coordinates where only the first aNumberOfPoints are taken into account.

Method Details

createContour

ILcdValuedPolygon createContour(double[] aXArray,
 double[] aYArray,
 int aNumberOfPoints,
 double aLevel)

Deprecated.

Creates an ILcdValuedPolygon from separate arrays of x- and y-coordinates where only the first aNumberOfPoints are taken into account.

The edge of a polygon indicates a contour line of equal height. The orientation of the returned polygon should be interpreted as follows:

• CLOCKWISE: The area on just on the exterior of the polygon has a higher value than the interior.
• COUNTER-CLOCKWISE: The area just on the exterior of the polygon has a lower value than the interior.

Note that this orientation only says something about the immediate area surrounding the contour line, and not the entire area enclosed by the contour. For instance, it is possible to have a counter-clockwise oriented contour that contains other contours in its interior with lower values than itself.

Parameters:

aXArray - The array of x-coordinates.

aYArray - The array of y-coordinates.

aNumberOfPoints - The number of coordinates to take into account.

aLevel - The level of the ILcdValuedPolygon.

Returns:

An ILcdPolygon constructed from aXArray and aYArray.

See Also:

• ILcdValuedPolygon