| java.lang.Object | ||
| ↳ | com.esri.core.geometry.Geometry | |
| ↳ | com.esri.core.geometry.Segment | |
 Known Direct Subclasses
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Class Overview
A base class for segments. Presently only Line segments are supported.
Summary
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Inherited Fields | |||||||||||
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From class
com.esri.core.geometry.Geometry
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Segment()
Creates a segment with start and end points (0,0).
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| double |
calculateArea2D()
Calculates the area of the geometry.
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| void |
copyTo(Geometry dst)
Copies this geometry to another geometry of the same type.
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| final int |
getDimension()
Returns the topological dimension of the geometry object based on the geometry's type.
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| double |
getEndX()
Returns the X coordinate of ending point.
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| double |
getEndY()
Returns the Y coordinate of ending point.
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| double |
getStartX()
Returns the X coordinate of starting point.
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| double |
getStartY()
Returns the Y coordinate of starting point.
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| abstract int |
intersectionWithAxis2D(boolean bAxisX, double ordinate, double[] resultOrdinates, double[] parameters)
Calculates intersection points of this segment with an infinite line, parallel to one of the axes.
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| final boolean |
isEmpty()
Indicates if the geometry object contains geometric information.
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| boolean |
isEmptyImpl()
Non public abstract version of the function.
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| void |
queryEnd(Point dstPoint)
Returns coordinates of the end point in this segment.
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| void |
queryStart(Point dstPoint)
Returns coordinates of the start point in a Point class.
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| final void |
setEmpty()
Sets the geometry to its original initialization state by releasing all data referenced by the geometry.
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| void |
setEnd(Point srcPoint)
Sets the coordinates of the end point in a Point class.
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| void |
setStart(Point srcPoint)
Sets the coordinates of the start point in this segment.
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Inherited Methods | |||||||||||
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From class
com.esri.core.geometry.Geometry
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From class
java.lang.Object
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Public Constructors
public Segment ()
Creates a segment with start and end points (0,0).
Public Methods
public double calculateArea2D ()
Calculates the area of the geometry. If the spatial reference is a Geographic Coordinate System (WGS84) then the 2D area calculation is defined in angular units.
Returns
- A double value representing the 2D area of the geometry.
public void copyTo (Geometry dst)
Copies this geometry to another geometry of the same type. The result geometry is an exact copy.
public final int getDimension ()
Returns the topological dimension of the geometry object based on the geometry's type.
Returns 0 for point and multipoint.
Returns 1 for lines and polylines.
Returns 2 for polygons and envelopes
Returns 3 for objects with volume
Returns
- Returns the integer value of the dimension of geometry.
public double getEndX ()
Returns the X coordinate of ending point.
Returns
- The X coordinate of ending point.
public double getEndY ()
Returns the Y coordinate of ending point.
Returns
- The Y coordinate of ending point.
public double getStartX ()
Returns the X coordinate of starting point.
Returns
- The X coordinate of starting point.
public double getStartY ()
Returns the Y coordinate of starting point.
Returns
- The Y coordinate of starting point.
public abstract int intersectionWithAxis2D (boolean bAxisX, double ordinate, double[] resultOrdinates, double[] parameters)
Calculates intersection points of this segment with an infinite line, parallel to one of the axes.
Parameters
| bAxisX | TRUE if the function works with the line parallel to the axis X. |
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| ordinate | The ordinate value of the line (x for axis Y, y for axis X). |
| resultOrdinates | The value of ordinate in the intersection points One ordinate is equal to the ordinate parameter. This parameter can be NULL. |
| parameters | The value of the parameter in the intersection points (between 0 and 1). This parameter can be NULL. |
Returns
- The number of intersection points, 0 when no intersection points exist, -1 when the segment coincides with the line (infinite number of intersection points).
public final boolean isEmpty ()
Indicates if the geometry object contains geometric information. IsEmpty returns true when the geometry object does not contain geometric information beyond its original initialization state.
Returns
- boolean Returns true if this geometry is empty.
public boolean isEmptyImpl ()
Non public abstract version of the function.
public void queryEnd (Point dstPoint)
Returns coordinates of the end point in this segment.
Parameters
| dstPoint | The end point of this segment. |
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public final void setEmpty ()
Sets the geometry to its original initialization state by releasing all data referenced by the geometry.
public void setEnd (Point srcPoint)
Sets the coordinates of the end point in a Point class.
Parameters
| srcPoint | The new end point of this segment. |
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public void setStart (Point srcPoint)
Sets the coordinates of the start point in this segment.
Parameters
| srcPoint | The new start point of this segment. |
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