Geopak - Adding Vertices to an element in site modeller

Hi Frosty

I would probably use Elements/Edit Profile in Site Modeler. After building the new site element, select and place a SITE profile cell, and use the vertical component tools with curvilinear co-ordinates to modify the vertical profile to the station/elevation required. Then apply to update the element and the site model. Its a quick easy way to re-grade site elements.

Note that this is different to Civil/Profiles/Draw Profiles, which uses chains and you can display different surfaces.

You could also try Elements/Information, which will let you modify the elevation of each vertice on a Site element - but that could be awkward if there are many vertices. There are probably other ways also?

Hope that is useful. Thanks for the help with my other queries.

Cheers, Darryl

Darryl's suggestion provides the most flexible and controllable solution.

The Edit Profile tool is by far the most flexible (and effective) tool offered for editing elevations of a Site Element or series of connected Site Elements.

If the case is as simple as outlined (adding one point to an arc) you could use the Element New/Edit>Point>Constant Elevation tool (assuming you know the elevation of the point). When placing the point, snap the point to the arc and the arc will "absorb" that point at the location its placed. Note: While the point's elevation is absorbed into the arc, this is only the case as long as you do not move that arc in the XY plane. The point element is not tied to the arc. if you move the arc, you will need to select and move the point with it.

If the element you wanted to edit was actually a line/line string rather than an arc, you could use the MiroStation "insert vertex" tool to add a vertice to the element and then, as Darryl suggests, use the Element Info to modify the elevation of that specific vertice.

Typically I would not suggest using the Element Info to edit elevations - way too slow but, if its a single vertice, it will certainly do the trick.

HTHs

Darryl's suggestion provides the most flexible and controllable solution.

The Edit Profile tool is by far the most flexible (and effective) tool offered for editing elevations of a Site Element or series of connected Site Elements.

If the case is as simple as outlined (adding one point to an arc) you could use the Element New/Edit>Point>Constant Elevation tool (assuming you know the elevation of the point). When placing the point, snap the point to the arc and the arc will "absorb" that point at the location its placed. Note: While the point's elevation is absorbed into the arc, this is only the case as long as you do not move that arc in the XY plane. The point element is not tied to the arc. if you move the arc, you will need to select and move the point with it.

If the element you wanted to edit was actually a line/line string rather than an arc, you could use the MiroStation "insert vertex" tool to add a vertice to the element and then, as Darryl suggests, use the Element Info to modify the elevation of that specific vertice.

Typically I would not suggest using the Element Info to edit elevations - way too slow but, if its a single vertice, it will certainly do the trick.

HTHs

Cheers Darryl and Michael

I had forgotten about that tool!!! thanks for reminding me.

Is there an easy way to pull the vertical design out of what has been specified in element edit profile so that tabular data can be generated for this (for example a kerb return).  If i create a gpk chain and profile from "profile cell setting" the profile drawn is made up of multiple vertices/lines and not as the curves specified.  I need these curves do i not to get the vertical curves to be notated in the tabular data.

Does this make sense what im trying to achieve?

Cheers,

Frosty

Hi again,

the first time you use the Edit Profile tool on a series of Site Elements there is a toggle on the Profile Cell dialog to store the elements to COGO. Enable that and the plan elements will be stroed as a Chain when you select them. The Profile elements you create (only the new ones) will be stored as a profile.

Additionally, 2 profile cells will be drawn. One is a Site Element profile cell. the Other is a COGO profile cell... so you will be able to annotate the design profile elements using Tab Data.

HTHs

There is another way you can do this task that will make your arc dynamic to changes in your model in contrast with profiling or snapping a point to the arc which are not dynamic.

The technique takes advantage of Microstation's ability to associate cells to elements. If you break the arc into 2 pieces and then rejoin the pieces as a complex chain you will end up with a vertex in the arc. Next create a cell that is just a point (make sure it is a graphic cell) and snap the cell to the vertices of the arc using the Association toggle in the cell placement options. The point cell will now move with the verttces of the arc if the arc moves horizontally. Now create a temporary drape surface from just the point cells. You can associate each cell independently to your model. Thus the end cells can drape on their corresponding road objects and the mid cell can be associated to either end by a slope or elevation offset. Lastly, drape the arc on the temp object by vertices. Now the arc will update to any changes to your model. If you do have to move the arc, the point cells will move with them and the relationships between the points will update the drape object.  The one caveat is the arc will have to be re-draped if you move the vertices since the software won't  update the drape action if the points move horizontally. It will update if the points move vertically.