WMS:Redistribute

Vertices along arcs can be redistributed at either a higher or lower density using the Redistribute command in the Feature Objects menu. The vertex density along arcs determines the density of TIN vertices when issuing the Create TIN command from the Feature Objects menu. Vertices are redistributed along all selected arcs using a uniform or cubic spline method. Arcs can be selected one at a time using the Select Arc tool, the Select All command in the Edit menu (the Select Arc tool must be active), the Select Branch tool, or the Select Network tool. Once the arcs are selected the method of redistribution can be chosen from the Redistribute dialog.

Uniform Subdivision

If the Subdivide each end uniformly options is specified then either a number of intervals, or a specified spacing can be given to determine how points are redistributed along the selected arcs. If the specified spacing is greater than the length between adjacent arc vertices, the vertices are moved to reflect this larger spacing.

Spline Redistribution

If the Redistribute along a cubic spline option is specified vertices between arcs are redistributed by creating a series of splines from the vertices of selected arcs and then redistributing a new set of vertices at the specified distance. If the flag for preserving points with an angle greater than the specified angle is checked then vertices at such locations will remain after the redistribution. This method can be used to create vertices at a smaller density (specify a larger target spacing) as well as a higher density.

File:Image40.gif Arcs before redistribution

File:Image41.gif Arcs with a constant interval of 5.

File:Image42.gif Arcs with a constant spacing of 100.

File:Image43.gif Arcs with a splined redistribution

Related Topics

• Feature Objects
• Creating TINs