An elliptical arc is a portion of an ellipse. You specify this shape using the usual ellipse parameters and two more: AngleStart and AngleSpan. AngleStart defines the angle at which the arc begins and AngleSpan defines the angular extent of the arc.
Cognex.Vision ShareableBase
Cognex.Vision ChangedEventShareableBase
Cognex.Vision GraphicInteractiveBase
Cognex.Vision EllipticalArc
Namespace: Cognex.Vision
Assembly: Cognex.Vision.Core.Net (in Cognex.Vision.Core.Net.dll) Version: 9.21.1.1
The EllipticalArc type exposes the following members.
| Name | Description | |
|---|---|---|
| EllipticalArc | Constructs a new instance of this class. |
| Name | Description | |
|---|---|---|
| Copy | Create a new elliptical arc, copying the specified parameters. | |
| CopyBase | Copy a graphic and its derived parameters. | |
| CreateEllipse | Create a new ellipse shape. The returned ellipse will have the same center, radii, rotation, and unit circle transform as this elliptical arc. Use the CopyFlags to specify what other parts of this shape should be copied into the new one. | |
| DistanceToPoint | Shortest distance from a boundary of this shape to the given point. Points within closed shapes return a distance less than zero. | |
| EnclosingRectangle | Minimum enclosing rectangle of this shape. | |
| Equals | Compares the equality of this object with another. (Overrides GraphicInteractiveBase Equals(Object).) | |
| FitToBoundingBox | Adjust the shape's geometric properties so that the shape fits inside passed in rectangle. | |
| FitToImage | Adjust the shape's geometric properties such that its default size is based on the image and its SelectedSpaceName. XScale and YScale are multipliers where 1.0 designates 100% scaling. | |
| GetCenterRadiusXYRotationAngleStartAngleSpan | Gets CenterX, CenterY, RadiusX, RadiusY, Rotation, AngleStart, and AngleSpan of this elliptical arc. All angles are in radians. | |
| GetHashCode | Returns the hash code of this object. (Overrides GraphicInteractiveBase GetHashCode .) | |
| GetParentFromChildTransform | Gets the parent transform from the child transform. | |
| GetStartEnd | Gets the start and end point coordinates of this elliptical arc. The start point occurs at the angle given by AngleStart. The end point occurs at the angle given by AngleStart + AngleSpan. | |
| GetType | Gets the Type of the current instance. (Inherited from Object.) | |
| GetTypeMeta | Get the TypeMeta that describes the type of this object. | |
| GetUnitCircleParams | Get a description of this elliptical arc as a unit circular arc and a linear transform that maps it to an elliptical arc. The unit circle arc is centered at (0,0), has a radius of one, and has the provided start angle and span (in radians). | |
| Map | Maps this shape through the given transform. | |
| MapLinear | Create a new elliptical arc by mapping this one through the given linear transform. Use the CopyFlags to specify what other parts of this shape should be copied into the new one. | |
| ResumeAndRaiseChangedEvent | Re-enables raising of the ChangedEvent after SuspendChangedEvent has been called, and raises the ChangedEvent if the ChangedEventSuspended count is reduced to zero and any changes were made while events were suspended. Must be called once for each call to SuspendChangedEvent. | |
| SetCenterRadiusXYRotationAngleStartAngleSpan | Sets CenterX, CenterY, RadiusX, RadiusY, Rotation, AngleStart, and AngleSpan of this elliptical arc. All angles are in radians. | |
| SetFromUnitCircleParams | Set the geometry of this elliptical arc from the given description of a unit circular arc and the linear transform that maps it to an elliptical arc. The unit circle arc is centered at (0,0), has a radius of one, and has the given start angle (in radians) and span (in radians). | |
| SuspendChangedEvent | Temporarily suspends the raising of the ChangedEvent. May be called more than once, and a corresponding call to ResumeAndRaiseChangedEvent must be made for each call to SuspendChangedEvent. | |
| ToString | Returns a human readable string that represents the object. |
| Name | Description | |
|---|---|---|
| Equality | Compares the equality of two EllipticalArc objects. | |
| Inequality | Compares the inequality of two EllipticalArc objects. |
| Name | Description | |
|---|---|---|
| SfAngleSpan | ||
| SfAngleStart | ||
| SfArcLength | ||
| SfCenterX | ||
| SfCenterY | ||
| SfDirectionAdornment | ||
| SfEndPointAdornment | ||
| SfEndX | ||
| SfEndY | ||
| SfRadiusX | ||
| SfRadiusY | ||
| SfRotation | ||
| SfStartPointAdornment | ||
| SfStartX | ||
| SfStartY |
| Name | Description | |
|---|---|---|
| AngleSpan | Get Returns/sets the angular extent (in radians) and direction of the arc. For example, a value of Pi specifies an arc that is one half of the full ellipse. A value of -Pi specifies the other half. | |
| AngleStart | Get Returns/sets the angle (in radians) that specifies the start of the arc. It is measured from the x-axis of the underlying ellipse. | |
| ArcLength | Returns the total length of this arc. | |
| CenterX | Get Returns/sets the x coordinate of the ellipse center. | |
| CenterY | Get Returns/sets the y coordinate of the ellipse center. | |
| ChangedEventSuspended | Indicates if raising the ChangedEvent has been suspended. | |
| Children | Children of this graphic. | |
| Color | Color of this graphic. Can be any OLE_COLOR. | |
| DirectionAdornment | Get Returns/sets the direction adornment of this elliptical arc. These adornments indicate the direction from the start point to the end point. | |
| DragColor | Color of this graphic when dragged. | |
| DragLineStyle | Line style of the graphic when dragged. | |
| DragLineWidthInScreenPixels | Line width of this graphic when dragged. | |
| EndPointAdornment | Get Returns/sets the end point adornment of this elliptical arc. The end point occurs at the angle given by AngleStart + AngleSpan. | |
| EndX | Returns the x coordinate of the arc's end point. The end point occurs at the angle given by AngleStart + AngleSpan. | |
| EndY | Returns the y coordinate of the arc's end point. The end point occurs at the angle given by AngleStart + AngleSpan. | |
| FillColor | The fill color of this graphic. | |
| GraphicDOFEnable | Get Interactive Degree of freedom for this graphic object. Provides the ability to govern interactive manipulation of an object; for example could be used to prevent an object from being resized. | |
| GraphicDOFEnableBase | Interactive Degree of freedom for a graphic object. Allows access to each graphic's GraphicDOFEnable property without knowing the specific graphic type. | |
| Handle | (Overrides GraphicInteractiveBase Handle.) | |
| Interactive | Interactive property allow this graphic object to be selected. See GraphicDOFEnable for information on governing interactive manipulation of an object. | |
| LineStyle | Line style of this graphic. | |
| LineWidthInScreenPixels | Line width (in screen pixels) of this graphic. | |
| MouseCursor | Mouse cursor to be displayed when the mouse is over the graphic. The cursor will be visible only if the graphic is interactive. | |
| Parent | Return a reference to the containing tracking collection. May be null. | |
| RadiusX | Get Returns/sets the distance from the center of the ellipse to its boundary (along the ellipse's x-axis). | |
| RadiusY | Get Returns/sets the distance from the center of the ellipse to its boundary (along the ellipse's y-axis). | |
| Rotation | Get Returns/sets the rotation angle (in radians) from the x-axis of the selected coordinate space to the x-axis of the ellipse. | |
| Selected | True when the shape is selected in a display. | |
| SelectedColor | Color of this graphic when selected. | |
| SelectedLineStyle | Line style of this graphic when selected. | |
| SelectedLineWidthInScreenPixels | Line width of this graphic when selected. | |
| SelectedSpaceName | Get (Overrides GraphicInteractiveBase SelectedSpaceName.)Coordinate space in which this shape is to be interpreted. | |
| StartPointAdornment | Get Returns the start point adornment of this elliptical arc. The start point occurs at the angle given by AngleStart. | |
| StartX | Returns the x coordinate of the arc's start point. The start point occurs at the angle given by AngleStart. | |
| StartY | Returns the y coordinate of the arc's start point. The start point occurs at the angle given by AngleStart. | |
| TipText | Text to describe this graphic in a tool tip. Newline characters can be used to create multi-line tip text. | |
| Visible | Visible property of this graphic. |
| Name | Description | |
|---|---|---|
| Changed | The actual event. | |
| Dragging | Raised when an interactive graphic is being dragged. | |
| DraggingStopped | Raised after the drag operation of an interactive graphic is complete. |
An elliptical arc is a portion of an ellipse. You specify this shape using the usual ellipse parameters and two more: AngleStart, the angle at which the arc begins, and AngleSpan, the angular extent of the arc.