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Distance along a polyline

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Message 1 of 22
getrekdent
2542 Views, 21 Replies

Distance along a polyline

Good Day! 

 

I have a line with 14555 survey points along it,  I have found the total distance and need to travel back 118.688 KM back along this line then extract the points from the drawing and load it into a new Dwg.  How would one travel back along this polyline the 118.688 KM needed?

 

Thanks! 🙂



BoXx ApeXx S3 Workstation - 64 GB Ram
i7 Overclocked to 5.1GHz - Nvidia Quadro P6000
21 REPLIES 21
Message 2 of 22
ccoles
in reply to: getrekdent

Can you make an alignment out of it, then just use the station-offset transparency tool to locate the point? That seems to be the quickest way.

Windows 7 64-bit
Dell Precision T5610, Dual-Xeon 2.6Ghz, 16 Gig RAM
Civil 3D 2013
Message 3 of 22
doni49
in reply to: getrekdent

You could create an alignment from the pline and then use station/offset to find where the station in question is.

 

 



Don Ireland
Engineering Design Technician




If a reply solves your issue, please remember to click on "Accept as Solution". This will help other users looking to solve a similar issue. Thank you.


Please do not send a PM asking for assistance. That's what the forums are for. This allows everyone to benefit from the question asked and the answers given.

Message 4 of 22
getrekdent
in reply to: doni49

The problem I am having is there are so many points that my computer cannot handle the alignment creation, I have split the points into five separate files and created alignments with those but then the meterage is incorrect on the alignments... I'm kinda stuck 😞



BoXx ApeXx S3 Workstation - 64 GB Ram
i7 Overclocked to 5.1GHz - Nvidia Quadro P6000
Message 5 of 22
ccoles
in reply to: getrekdent

For each of the files, did you start the alignment station where the last alignment segment ended? That would be very important to keep the stations correct. It should still work as long as the stationing for each segment is concurrent with the previous. You should be able to pull the ending station from each segment and insert it as the beginning station for the next.

Windows 7 64-bit
Dell Precision T5610, Dual-Xeon 2.6Ghz, 16 Gig RAM
Civil 3D 2013
Message 6 of 22
getrekdent
in reply to: ccoles

No I didn't, how do I do that? Sorry I'm really new to this C3D Program


BoXx ApeXx S3 Workstation - 64 GB Ram
i7 Overclocked to 5.1GHz - Nvidia Quadro P6000
Message 7 of 22
Jeff_M
in reply to: getrekdent

Would it be possible to share your drawing via Dropbox? I just ran a very simple test with a straight alignment, and 14555 points inserted along it. I have no slowdowns at all, but it is likely nothing like what your data looks like.
Jeff_M, also a frequent Swamper
EESignature
Message 8 of 22
doni49
in reply to: getrekdent

Easier way would be to put the alignment all in one file and use dynamic reference to include it in the other files with the points.



Don Ireland
Engineering Design Technician




If a reply solves your issue, please remember to click on "Accept as Solution". This will help other users looking to solve a similar issue. Thank you.


Please do not send a PM asking for assistance. That's what the forums are for. This allows everyone to benefit from the question asked and the answers given.

Message 9 of 22
getrekdent
in reply to: doni49

I am unfortunately unable to share due to the sensitivity of the information, Also now it has decided that when I try to open or save the explorer does not open it it stuck in the command line?



BoXx ApeXx S3 Workstation - 64 GB Ram
i7 Overclocked to 5.1GHz - Nvidia Quadro P6000
Message 10 of 22
ccoles
in reply to: getrekdent

If you can get Civil3D to open again, you can adjust the starting station of each alignment segment by going to the alignment properties, the station control tab, and simply typing in the start station. You will get a warning about adjusting the station control and it's effects, but that is OK. The same tab also has the ending station in the station information section for the next segment.

Windows 7 64-bit
Dell Precision T5610, Dual-Xeon 2.6Ghz, 16 Gig RAM
Civil 3D 2013
Message 11 of 22
getrekdent
in reply to: doni49

Hi,
Okay I have the alignment created that I need, but it goes to KM 128.578, How can I extract what point would be sitting at KM 118.688?


BoXx ApeXx S3 Workstation - 64 GB Ram
i7 Overclocked to 5.1GHz - Nvidia Quadro P6000
Message 12 of 22
AllenJessup
in reply to: getrekdent


@getrekdent wrote:

Also now it has decided that when I try to open or save the explorer does not open it it stuck in the command line?


Check that FILEDIA is set to 1.

 

Allen



Allen Jessup
Engineering Specialist / CAD Manager

Message 13 of 22
doni49
in reply to: getrekdent

Draw a line.  When prompted to enter a point, type 'SO (take note of the apostrophe).  You'll be prompted to select your alignment, station and then offset.  After you've done so, press Escape ONCE -- it'll start the line at that station/offset (the offset can be zero).

 

That will tell you where the station is.  Go from there.



Don Ireland
Engineering Design Technician




If a reply solves your issue, please remember to click on "Accept as Solution". This will help other users looking to solve a similar issue. Thank you.


Please do not send a PM asking for assistance. That's what the forums are for. This allows everyone to benefit from the question asked and the answers given.

Message 14 of 22
getrekdent
in reply to: doni49

Thank you all so much for this help I really appreciate it!
Doni I have marked my point that i need with the line command, Is there a way that I can find the Nearest point coordinates to the station that I have marked on the alignment?


BoXx ApeXx S3 Workstation - 64 GB Ram
i7 Overclocked to 5.1GHz - Nvidia Quadro P6000
Message 15 of 22
doni49
in reply to: getrekdent

Draw a circle centered on that point.  As you drag it out when prompted to choose a radius, watch to see which point shows up inside the radius first.  The first one is the closest.



Don Ireland
Engineering Design Technician




If a reply solves your issue, please remember to click on "Accept as Solution". This will help other users looking to solve a similar issue. Thank you.


Please do not send a PM asking for assistance. That's what the forums are for. This allows everyone to benefit from the question asked and the answers given.

Message 16 of 22
getrekdent
in reply to: doni49

You Guys are the best!! Thank you so much 😄 my day has been made!


BoXx ApeXx S3 Workstation - 64 GB Ram
i7 Overclocked to 5.1GHz - Nvidia Quadro P6000
Message 17 of 22
AllenJessup
in reply to: getrekdent

Just taking the subject by itself. You could get the location a certain distance from the end of a polyline using either the Measure or the Lengthen command. Use 118.688 as the measure distance in the first case. This will put a node every 118.688 KM along the polyline. The first one from the end you start from is your mark.

 

Use -118.688 as the delta in the Lengthen command and that will shorten the polyline by 118.688. If you need the original polyline intact. Make a copy and Lengthen the copy. The end will revert 118.688 along the polyline and the end will now be your mark.

 

All the advice regarding Alignments and Stationing is valid and very useful to know. These two techniques fall under my Quick and Dirty methods. Using only basic AutoCAD commands.

 

Allen



Allen Jessup
Engineering Specialist / CAD Manager

Message 18 of 22
getrekdent
in reply to: AllenJessup

Can anyone explain to me the yellow triangle in the corner of my survey points box? I only have one file for my points as that is all I was able to recover from the GIS file but it has the yellow triangle in the corner and everything that I build off of these points (Alignments,Corridors, Profiles) also have the yellow triangle. I tried the update command on the points box but I am unsure as to what it really means?


BoXx ApeXx S3 Workstation - 64 GB Ram
i7 Overclocked to 5.1GHz - Nvidia Quadro P6000
Message 19 of 22
owenmull
in reply to: getrekdent

Go into your Alignment Style-->Display Tab-->Turn off the 'Warning Symbol' feature.

 

What do you mean 'survey points box'?

-Owen
Windows 7 x 64 bit

Civil 3D 2017
______________________________________________________________
Usually, I find that the problem is between the keyboard and the chair.
Message 20 of 22
getrekdent
in reply to: owenmull

These ones here, Are they a critical error message?



BoXx ApeXx S3 Workstation - 64 GB Ram
i7 Overclocked to 5.1GHz - Nvidia Quadro P6000

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