TSLFollowPolygonOperation Class Reference

Detailed Description

This is the TSLFollowPolygonOperation.

Operation Name polygon

Additional Data Pointer to integer indicating true if follow mode is on.

It is a specialised primitive operation. The operation enables the user to create a new polygon or polyline that follows the edge defined by existing polygons. This operation must be added after the basic polygon operation.

The user defines the start of the new entity by selecting a point on the edge that they wish to follow. Selecting a second point will cause the new entity to snap to any intermediate points on the edge. The operation will always follow the closest route between two edge points.

NOTE: In earlier releases of MapLink, the operation will allow you to jump from one entity to another, but only if there is an intersection point. It is now possible to provide full shortest path calculation between the selected points, regardless of the number of intervening primitives. To control the use of this new functiionality, the following parameters are read from the editor config file:

; This is slower, but much more effective followUseShortestDistance=1 ; This is the maximum extent in TMC around the two selected points that will be used to query the network for the shortest route calculation followMaximumExtent=50000 ; Whether to use the new-style echo, which shows the maximum extent being queried dynamically followShowNetworkExtent=1

Static Public Member Functions
static bool	add (TSLEditor *editor)

Member Function Documentation

add()

static bool TSLFollowPolygonOperation::add ( TSLEditor * editor )

static

This method adds the operation to a TSLEditor object. It is passed a pointer to the editor object.

Parameters

editor

A pointer to the TSLEditor object.

Returns

true if added successfully, otherwise false.