Open Table of Contents

Polyline Global Snap Wizard

Snaps the features of a polyline layer to another layer (Point, Polyline or Polygon)

Inputs:

• A polyline layer to be snapped
• A snap layer - point, polyline or  polygon
• Snap tolerance
• Snap options1 (Snap What)
• Snap options2 (Snap To What)

Outputs:

• A polyline feature class - the polylines from the source layer will be moved to snap to the features of the Snap Layer (if within the snap tolerance)

Options:

• Snap Options 1 (Snap What) - this options lets the user set which elements of the source polylines to be used for snapping
  • Nodes: Only nodes (end points) of the polylines will be snapped
  • Vertices: All the vertices of the source polylines will be used.
  • Insert Vertices: This option will get the vertices from the features of the snap layer and will insert new vertices into the source polylines. The new vertices together with the original ones will be used for snapping. This option is slower than the other ones, but gives the best snapping results especially if the polylines to be snapped have much less vertices than the ones from the Snap layer.
• Snap Options 2 (Snap To What)
  • Vertices: The polylines will be snapped to the nearest vertex of the nearest feature from the Snap layer
  • Nearest edge: The polylines will be snapped to the nearest point of the nearest feature from the Snap layer
  • Vertices & Edges: If there is a vertex  closer than the snap tolerance to the polylines (their elements defined in Options 1) to be snapped, the polyline will snap to it, otherwise it will snap to the nearest edge.

Notes:

• An option for snapping selected features only is available. The resulting dataset will contain all the features of the original layer. Only currently selected features will be used for snapping and eventually snapped.
• The snap distance should be in the units of the Data Frame
• The Source and the Snap datasets can have different spatial references as long as the Data Frame has assigned projection and the Geographic Coordinate systems of all the projections are the same.

Example: Red - Source Polyline; Black - Snap Polyline; Green - Snapped Polyline