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Polygon | |
PolygonAnalyzer can be used to analyzed a 2D polygon that is defined by a list of 2D positions.
Inheritance HierarchySystemObject
Ab4d.SharpEngine.CommonPolygonAnalyzer
Ab4d.SharpEngine.CommonPolygonAnalyzer
Namespace: Ab4d.SharpEngine.Common
Assembly: Ab4d.SharpEngine (in Ab4d.SharpEngine.dll) Version: 3.2.9386+3a404a3e1ebfa4efd231da7fe6f10dfb23b95dc4
SyntaxC#
public class PolygonAnalyzer
The PolygonAnalyzer type exposes the following members.
Constructors| Name | Description | |
|---|---|---|
 | PolygonAnalyzer(Vector2, Boolean) | Constructor |
| PolygonAnalyzer(Vector2, Boolean, Boolean) | Constructor |
| PolygonAnalyzer(Vector2, Int32, Boolean) | Constructor |
Properties| Name | Description | |
|---|---|---|
 | BoundingBoxMax | Gets maximum position in the bounding box |
| BoundingBoxMin | Gets minimum position in the bounding box |
| FirstVertex | First PolygonVertex in a double linked list of positions. |
| IsClockwise | Gets true is polygon positions are oriented in a clockwise direction. The value of this property is also determined by the Y axis direction that is up by default (this is set by IsYAxisUp). |
| IsClosed | Gets true if polygons is closed |
| IsPolygonConvex | Gets true if polygon is convex |
| IsYAxisUp | Gets or sets a Boolean that specifies if Y axis is pointing up (true by default). This affects the value of IsClockwise property. |
| OriginalPoints | Gets a list of positions |
| PointsCount | Gets points count |
| PolygonArea | Gets polygon area. When the polygon is oriented in anti-clock-wise direction, then PolygonArea is positive. When the polygon is oriented in clock-wise direction, then PolygonArea is negative. |
Methods| Name | Description | |
|---|---|---|
| Analyze | Analyzes this polygon again and recalculates its properties. |
| CreateReversedPolygonAnalyzer | Returns a PolygonAnalyzer that is created by reversing the order of positions in this PolygonAnalyzer |
| Dump | Dumps the text that describes the individual vertices in this PolygonAnalyzer into the Visual Studio Output window |
| GetDumpString | Gets a string the describes the individual vertices in this PolygonAnalyzer. |
| GetEnumerator | Gets an enumerator that can be used to iterate through all PolygonVertex items in the polygon defined by this PolygonAnalyzer. |
| IsPointInsidePolygon | Returns true when the specified point is inside the polygon defined by this PolygonAnalyzer. |
| OptimizeVertices | OptimizeVertices removes duplicate vertices (that follow one another) and remove vertices that lie on the same line. |
| RemoveVertex | Removes the specified vertex from this polygon. |
See Also