GetSegmentNearPoint Method (GoPolygon)

In This Topic

Return the index of the first point of a segment of this polygon that is close to a given point.

Syntax

public int GetSegmentNearPoint( 
   PointF pnt,
   float pickMargin
)

Parameters

pnt: A PointF in document coordinates
pickMargin: the approximate distance from each line segment that is allowed, in addition to the width of the Pen; assumed to be non-negative

Return Value

The zero-based index of the first point of a segment, or -1 if no segment is near .

Remarks

This ignores the filled area and only considers the boundary defined by the polygon points that is drawn by the Pen (or if there is no Pen, what would be drawn if there were a Pen). For Bezier style polygons, this returns the index of the first of each set of points, e.g. 0, 3, 7, ....

Reference

GoPolygon Class
GoPolygon Members

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