Merge/Split command (Edit-Tools menu)

This command selects or deselects the Merge/Split editing tool. This tool is only available in Point mode or in Polygon mode. It is currently only implemented for Point mode.

This tool can be used to merge vertices together, or on the contrary to split a vertex in order to separate the various polygons which share it.

Merge function (Point mode) :

This tool can be used to glue several vertices together in order to ensure that the polygons containing them are suitably connected. After this operation is performed, the structure will remain connected until the vertex is split back into pieces using the Split function : the merged vertices become, for all practical purposes, a single point. To merge two vertices, first select a point (using the left mouse button as usual), then press the Control key and click on another point (using the left mouse button) : this point is then moved to the position of the first point, and the two points become merged.

Split function (Point mode) :

This tool can be used to split a vertex, in order to disconnect the various polygons to which it belongs. This makes it possible to move some of these polygons independently of the others. In order to split a point, simply click on it with the right mouse button. The various polygon vertices which were merged then become separated (each created vertex is moved in the general direction of the center of the corresponding polygon). It is possible to use the Merge function in order to partially re-connect the split structure.

Remark :

Whenever possible, the Split function attempts to preserve the multi-resolution structure of the track blocks. Namely, when T3ED detects that two track polygons both involving the selected point and belonging to different resolutions actually contain each other, then these two track polygons remain connected in order to facilitate the track structure editing process.

Merge function (Polygon mode) : not yet implemented.

Shortcuts

Toolbar: