The index of the feature. Otherwise this must be a feature index value between 0 and Count minus 1. This argument is ignored for McPoints, where the coordinates of all points are always transformed.

If missing, then only the count is returned. If an Empty Variant, then it is filled with an array of SINGLEPOINT records containing X,Y pairs of points. Otherwise PointsResults must be a variant containing a safearray or records of the proper type and size. Allowed types are Single, SINGLEPOINT, Long, LONGPOINT, Double or DOUBLEPOINT. A non-emtpy variant of the right size and type will be filled with x,y pixel coordinate values (one XXXPOINT record per point or two Long/Single/Double values per point)

The type of points wanted. The ResultType mcotNoGaps and the Flag gfpxAdjacentPixels are illegal for for McPoints. The mcotConvex operation (the convex hull) are forces on the gfpxClosedBoundary flag, so that McPoints or McLines are treated as describing a closed boundary.

A parameter dependent on the type argument (see above)

Flag bits that control aspects of how the coordinates are computed.

Filter out (smooth out) the feature points using a running average. The degree of smoothing is passed in OperationValue; the degree is the number of points on either side of each point to use for an average. If the gfpxClosedBoundary mcGetFeaturePointsExFlags flag is not set for McLines or McPoints, then the end coordinates are mirrored for the average instead of wrapped into a closed boundary.

returns the convex hull of the points (treated as a clockwise closed boundary). The OperationValue argument specifies the degree of smoothing to be applied (as for mcotFilter) before doing the convex hull; set it to zero for no smoothing.

Vertices are adjusted to the nearest pixel and then are interpolated into one-pixel steps. Setting the gfpxAdjacentPixels flag also invokes this operation before doing any mcotFilter operation. For McLines, if the mcofConnect8 bit of the McFeatures.OptionFlags property is clear, then the points are marked such that each pixel along the line is 4-connected to one of its neighbors. By default the mcofConnect8 is set for McLines (though it is clear by default for McRegions), so points will be adjacent but may be only 8-connected. This operation is illegal for McPoints objects.

returns a given number of points evenly spaced along the total line or boundary length. The number of points wanted is passed in OperationValue. If the gfpxClosedBoundary flag is set or this is an McRegions, then the line length includes a closing line segement from the last point to the first. The points returned are the starting points of each of the given numbers of evenly spaced segment

returns points with a given spacing along the line or boundary. The spacing between the points wanted is passed in OperationValue, in calibrated units as determined by the McFeatures.SpatialCalibration property (fractional values are allowed). If the gfpxClosedBoundary flag is set or this is an McRegions, then the line includes a closing line segement from the last point to the first. The points returned are the starting points of each segment of the given length; the last segment is likely to be shorter than the others.

no flags

default behavior is gfpxConstantArea

This flag is forced on for McRegions and is otherwise off.

if set for the mcotFilter or or mcotConvex mcOutlineType operation for an McRegions, conserve the original area within the closed outline. When clear, the outline that is returned is likely to have a different area than the original outline (usually smaller). This flag affects any filtering pass for the mcotConvex operation (non-zero OperationValue), but does not modify the convex hull itself (the area of the convex hull will be the same or larger than the original area). This flag implies that the gfpxClosedBoundary flag is set.

If set the feature coordinates are mapped to the closest pixel and then interpolated into one-pixel steps before doing any mcotFilter or mcotConvex mcOutlineType operation. This is equivalent to the mcotNoGaps mcOutlineType operation. For McLines, if the mcofConnect8 bit of the McFeatures.OptionFlags property is clear, then the points are marked such that each pixel along the line is 4-connected to one of its neighbors. By default the mcofConnect8 is set for McLines (though it is clear by default for McRegions), so points will be adjacent but may be only 8-connected. This flag is ignored for the mcotSetNumbers and mcotSetSpacing operations. This flag is illegal for McPoints objects.