Topic: (C3D '09) Best Practices: Curb Creation

[mjfarrell]

Thanks RENO...that's exactly what we did...I just reviewed (found) one of the student files....and what a great day to survey that was...December in Sioux Falls, SD...and just for fun t snowed on us for about 30 minutes of the the field lab.

[sinc]

That's good news.

We'll be moving up to 2010 pretty soon, so we'll be looking forward to that.  Multicurves in 2009 are pretty worthless.

[mjfarrell]

That's good news.

We'll be moving up to 2010 pretty soon, so we'll be looking forward to that.  Multicurves in 2009 are pretty worthless.

will there be snow when I visit you???      

[sinc]

Visit...?  Why, are you planning on heading out this way?

We have a little bit of snow at the moment, but it's melting fast.  It's supposed to get up to almost 50° today.  But I think it's supposed to snow again tomorrow.

[reno]

I think he wants you to pay him to come out and train you.   

[sourdough]

Mark,
I would like to know if turning your linework including curves, into feature lines for your surface.
I realize that you are trying to automate. If you are, have you found that even in 2010 that feature line curves
don't act properly. I have found that working with curves and using them as breaklines, just don't work. So, I
have been working the the tangent lines (after making them feature lines from fieldwork) and then inserting nodes along
the feature lines and making short tangent lines to show a smoother curve that can be used to create a surface.
I like the idea you are presenting here about automating. I have had better luck working with feature lines because
of the offset abilities to mold and hold the grade between points. Your thoughts?

mjp

[Mark]

Mark,
I would like to know if turning your linework including curves, into feature lines for your surface.

I only get points from the field, so I do all the line work. Yes I'm using feature lines but no curves, just lines from point to point. Working with curves and a surface is to much of a pain. fork-it!!

[sourdough]

Mark,
I would like to know if turning your linework including curves, into feature lines for your surface.

I only get points from the field, so I do all the line work. Yes I'm using feature lines but no curves, just lines from point to point. Working with curves and a surface is to much of a pain. fork-it!!

Mark,
  I haven't done any automated line work yet. The field crews I have run into so far haven't got the automation thing
in use yet. My question is, can the automated part you are working with connect the lines as feature lines?
 I have found that when going out in the field with the crew, that to many things interrupt the workflow for the automation to work
easily. I have seen some great data collectors that can create linework in the field for download, but money to reequip
is the biggest hurdle, not the willingness to get the features you are trying to use.

MJP

[sinc]

If you are using the F2F capabilities of C3D, then your linework is automatically created as Survey Figures.  These Survey Figures can be added to your surface as breaklines.  When you add the breaklines, you can specify a midordinate distance (I frequently use 0.1'), and the surface triangulation is created appropriately around curves.

And yes, there are times when this doesn't work so hot.  A big one is large buildings, where the field surveyor may shoot the building in pieces, from multiple setups.  Another problem is when the field surveyor can't see a shot or series of shots, such as around funky building facades, so the field surveyor hand-tapes measurements and records them in the field notes, rather than shooting each corner.  In such cases, it is often possible for the field surveyor to still get everything done with linework codes, but at a significant cost in time and complexity, and it's often better to do cleanup in the office.

But in general, F2F functionality is a significant time-saver.  It also eliminates much of the guesswork involved when an office person is trying to "connect the dots" for a survey done by a field surveyor.

[mjfarrell]

Mark,
I would like to know if turning your linework including curves, into feature lines for your surface.

I only get points from the field, so I do all the line work. Yes I'm using feature lines but no curves, just lines from point to point. Working with curves and a surface is to much of a pain. fork-it!!

Mark,
  I haven't done any automated line work yet. The field crews I have run into so far haven't got the automation thing
in use yet. My question is, can the automated part you are working with connect the lines as feature lines?
 I have found that when going out in the field with the crew, that to many things interrupt the workflow for the automation to work
easily. I have seen some great data collectors that can create linework in the field for download, but money to reequip
is the biggest hurdle, not the willingness to get the features you are trying to use.

MJP

This is where the demonstration/field application portions of my survey instruction are invaluable.
Because we work through the processes required to deal with 'that complexity' in the end it does make sense and it does get better through practicing it.  And I'm fair certain there would be no need to buy any new equipment to adopt the practices required.  ( I have worked for an been involved with collecting line work field codes for over 12 years)  So if your equipment isn't too much older than that you should still be good to go.