From LineString (TopoPolygons from LineString)

Applicability:

• Cadcorp SIS Map Modeller
• Cadcorp SIS Map Editor
• Cadcorp SIS ActiveX Modeller            

Ribbon Group:

Topology-Create TopoPolygons

Associated commands:

• From Polygon
• From Items
• Cookie Cut
• Divide

Description:

 From LineString creates topological TopoPolygon items from a Link and Node item structure using a temporary "spaghetti LineString". All Polygons in the Link and Node item network which the "spaghetti LineString" fence crosses are converted into TopoPolygons. SIS always creates the smallest TopoPolygons it can along the "spaghetti LineString".

1. Select From LineString.
   
   
2. Construct a LineString fence by putting in points just as when you use the LineString command. Keep clicking points to draw to, or use the Backspace key to take out the last point input.
   
   
3. Press Enter when you have finished, or Ctrl + Enter to close to the first point input.

The "spaghetti LineString" fence disappears when the operation is complete.

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