Civil 3D tip : Multiple corridor link codes. Material area fill styles priority.

Suppose a corridor link has multiple codes.
When assigning a Code Set Style that uses more than one of those codes to set a Material Area Fill Style only the last by order code entered is applied.

All others are ignored.

I am talking about the order the codes are declared by the user...

...at the original autodesk sub assemblies, wherever this is possible and 

...at subassemblies created using SubAssemblyComposer.

No matter what the transparency is or if it the hatch is solid or not.

Civil 3D "bug" : QTO material list gaps. Application freezing

I had a case of three similar alignments in the same dwg.
I had to set multiple gaps for the QTO material lists.
First alignment everything worked fine.
Second and third one and by the time i applied whatever gap the application freezed.
No matter what i tried i always ended up to an eternal loop which would set the particular CPU core to work at its maximum endlessly.

I was entering the gap stations by hand. I typed them. One by one. For every alignment.
Trying to set stations to other than those of the sample lines obviously did not work. Only sample line stations are accepted. I tried to bypass it doing a graphical selection. You are only allowed to select sample lines. Not stations. So i entered all gaps graphically. And everything worked fine!!!

Still have not figured out why everything worked fine for the first alignment since i also typed by hand all stations.

Autodesk give us a break. I lost seven whole hours of my working time trying to find a solution. One step before going crazy. No solution over the internet or the Civil 3D forum. I was off time for the deliverables. My supervisor thinks i am slow and i lack of knowledge about this software. For God's shake.

Civil 3D bug : Modifying sections views offset sampling & minimum elevation

Say i have some cross section views.
There are some cases that i must do the following actions for the Civil 3D section views to match section views made by another design package.
First change the minimum section view elevation.
Next change the section view offsets.
I watch that surface maximum offset values are updated as reported at the section properties.
But graph is not informed and offsets remain !

Sample line group properties, Sections, Sample more sources, Remove, OK and then Add again does not work.
Also closing and reopening the drawing does not work.

Workaround is to swap the actions order. First fix the offsets and next fix the minimum elevation.

For any already existing wrong graphs the only way to show all is to manual or by custom software set for each one cross section view the SectionViewProperties, Elevations, User specified, Maximum value to the value of the Automatic one.

Adding keyword handling to AutoCAD .NET’s GetSelection()

https://www.keanw.com/2010/05/adding-keyword-handling-to-autocad-nets-getselection.html

Using the COM interface for AutoCAD objects from .NET

https://through-the-interface.typepad.com/through_the_interface/2007/02/using_the_com_i.html

Autocad NET programming : ObjectBrowser documentation error : Selection filters

All the selection methods are documented at the object browser with FilterType as Object. It does not work. FilterType must be declared as Short().
eg SelectionSet.SelectOnScreen(New Short(){0},New Object(){"AECC_PARCEL"})

Civil 3D : Survey : Mass move SurveyPoints

I had a case of a survey that had some points at wrong elevation. The GPS pole height was forgotten to zero elevation.
So i had to change the SurveyPoints elevation. Minus 2m to the elevation of some points.

I unlocked all the SurveyPoints.
Then i selected the desired ones through a SurveyQuery.
Finally i moved them using native autoCAD command Move.
Points were moved. And changed their properties to CoGoPoints! SurveyPoints maintained their original coordinates!

If doing this one by one using either the SurveyPoint editor or by simply dragging, Survey property is kept and coordinates change. Mass move through native autoCAD commands has no effect.

So i had to make the mass changes, export all the points, delete previous import event, CoGoPoints, Survey Points&Figures and finally reimport.

Yet another Civil 3D issue. It is obvious that there might have been lots of manual corrections to the SurveyFigures due to mistakes when surveying. All of them should be done again.

Why such a dummy way of thinking autoDESK ?

Same day found a workaround.
Make a dummy SurveyNetwork
Right click on it, select SurveyCommandWindow
Type MOD ELS BY PtStart PtEnd deltaElev
eg mod els by 35 142 -2
Modifies elevations of point 35 to 142 by -2
At ToolSpace Survey right click SurveyPoints and select Update.
AutomaticUpdate SurveyPoints does not work!!! Has to be manual after this modification.
Next to this a ProcessLinework has to be done also for the figures to update.