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@@ -21,14 +21,14 @@ data layer (normally layer 1) and nodes are stored in a different data layer
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method to add arcs to a set of nodes:
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<ol>
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-<li>Use the <em>connect</em> operation to create nodes from a vector points
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+<li><p>Use the <em>connect</em> operation to create nodes from a vector points
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file and add these nodes to an existing vector network of arcs (i.e.,
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lines/boundaries). This is useful when the goal is to analyze a set of places
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(points) in relation to a network--for example travel costs between places.
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Only points within the <em>thresh</em> (threshold) distance to a line/boundary
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will be connected as network nodes.</li>
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-<p><li>Create nodes and arcs from a vector line/boundary file using the <em>node</em>
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+<li><p>Create nodes and arcs from a vector line/boundary file using the <em>node</em>
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operation. This is useful if you are mostly interested in the
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network itself and thus you can use intersections of the network as start and
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end points. Nodes will be created at all intersections of two or more lines.
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@@ -36,7 +36,7 @@ For an <em>arc</em> that consists of several segments connected by
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vertices (the typical case), only the starting and ending vertices are
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treated as network nodes.</li>
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-<p><li>Create straight-line arcs between pairs of nodes with the <em>arcs</em> option.
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+<li>Create straight-line arcs between pairs of nodes with the <em>arcs</em> option.
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This produces networks like those of airline flights between airports. It is
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also similar to the kind of network created with social networking
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software, making it possible to create georeferenced social networks.</li>
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Michael Barton