ISnapElement

References
public interface ISnapElement
Base interface for all snapping elements (points, lines, segments, circles, what have you.

Properties

AffectsX

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bool AffectsX { get; }
Gets whether this element will affect the x component of a coordinate.

AffectsY

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bool AffectsY { get; }
Gets whether this element will affect the y component of a coordinate.

Radius

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double Radius { get; }
Gets the snapping radius in logical pixels associated with this element. In case multiple snapping elements are competing for precedence, those with smaller radii are favoured.

Methods

DistanceTo

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float DistanceTo(PointF point)
Compute the distance from a point to this snapping element.
Parameters:
point (PointF)Point to test.
Returns: Distance between point and element.

IsInRange

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bool IsInRange(PointF point)
Gets whether a point is within reach of this snapping element.
Parameters:
point (PointF)Point to test.
Returns: True if the distance from the point to the element is less than or equal to the snapping radius.

Project

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bool Project(PointF point, out PointF projected, out double x, out double y)
Project a point to this snapping element.
Parameters:
point (PointF)Point to project.
projected (out PointF)Projected point on element.
x (out double)X value of projection.
y (out double)Y value of projection.
Returns: True if point was successfully projected.