Maptitude 2024 GISDK Help

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Maptitude GISDK Help

SetArrowheads()

Summary

Sets the arrowhead style used to draw line features.

Syntax

SetArrowheads(string lyr_set_name, string ah_style)

Argument	Contents
lyr_set_name	Name of the layer or selection set
ah_style	"None" for no arrowheads, "Topology" to show arrowheads in the topological direction of the line, or "Flow" to show arrowheads on one-way streets

Notes

When used on a selection set, a null value for ah_style indicates that lines of selected features should be drawn with the default arrowhead style for the layer.
If lyr_set_name is null, SetArrowheads() operates on the current layer.

Example

// Show arrowheads on main streets only...

SetArrowheads ("Streets|", "None")

SetArrowheads ("Streets|Major Roads", "Flow")

Error Codes

Error Type	Meaning
NotFound	The layer or selection set does not exist

See Also

Function	Summary
GetArrowheads()	Gets the style of arrowheads used to draw line features
SetLineColor()	Sets the color used to draw line features
SetLineStyle()	Sets the line style used to draw line features
SetLineWidth()	Sets the line width used to draw line features

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