Hello, here again!
Last time, with your help, I was able to georeference my project, but now I have problems getting the photo that C3D loads to match the border lines of my drawing. Please, can you help me again?
I attach two photos, pic#1, show the displacement that my drawing has with respect to the Bing aerial photo and the coordinate system that I have loaded in C3D. Pic#2 shows the table where I got the coordinate system I'm using, the PR83-NAD83-32161-meters.
Thank you very much!
Solved! Go to Solution.
Solved by bcolonXQE5F. Go to Solution.
Solved by ChicagoLooper. Go to Solution.
Solved by ChicagoLooper. Go to Solution.
Solved by Pointdump. Go to Solution.
Hi Benjamin,
Hard to tell how much shift from your screen shot. Can you post your drawing?
Dave
Dave Stoll
Las Vegas, Nevada
Sure Dave, here it is.
Thanks for your help!
Benjamin,
Thanks for posting your drawing.
I tested a few different Coordinate Systems in MAPCSLIBRARY to see if it was a Datum Shift, but all were very close to each other. Then I grabbed a shapefile of Puerto Rico roads (attached) and noticed that they are all shifted to the west about the same amount.
I've seen Bing Live Maps off this much before. I think the only thing you can do is >>>Move BING Imagery<<<.
Dave
Dave Stoll
Las Vegas, Nevada
Wow Dave, thank you so much for all the effort you make to helping me. I really appreciate it. And yes, I will have to move the Bing photo, to match my drawing, because I checked the coordinates of the surveyor's table against the coordinates of the control stations in the drawing and they match. Therefore, I understand that the drawing is correct, in terms of location. But, I have another question, if I move the aerial photo from Bing, I lose the ability to use the power of C3D, combined with Bing and Google Earth, to get surface data as presented by Jeff Bartels, in this video: https://www.youtube.com/watch?v=4TzzRsX-4BA? Is it possible that I can import this surface data to triangulate in C3D, with some other software? oh! and thanks also for the video you sent me, which explains how to move the Bing imaginary.
Thanks for the support!
Benjamin
Benjamin,
Thanks for showing me the Bartels video. I did not know about that. I don't have Infraworks, so I can't try it.
You might also grab some LAZ Point Clouds from >>>TNM<<<.
Dave
Dave Stoll
Las Vegas, Nevada
Do you run Google Earth Pro?
First of all, correct the assigned CS, the original author’s footnotes in your uploaded drawing indicate NAD83 (2011) FIPS 5200 which AutoCAD calls NSRS11.PRHP or EPSG 6566.
Second, Bing looks off. Don't worry about Bing. Use Google Earth Pro instead.
Try this:
Chicagolooper
Hi Dave, hi ChicagoLooper, I thank you both for all the effort and promptness with which you have responded to my request for help.
Dave, after seeing your message, I checked the .shp file and I was able to corroborate what you indicate. Yes, there is a displacement regarding the data of the highways that we have in PR. I know that if I want to work with the Bing imagery, I have to move the aerial photo. At TNM, I hope to be able to get additional lidar data to complement the surface model. ChicagoLooper, thanks for being so detailed and sending me screenshots along with the instructions, it made my learning a lot easier. I followed the instructions, step by step and I was able to carry out the process successfully. For comparison, I did the same process leaving the coordinate system at Nad 83 Epsg 32161 and the corridor fall in pretty much the same place as when I changed the coordinate system to NSRS11.PRHP EPSG6566. I don't know if that result was what I expected, but that's what I got. Well, now that I have the c3d corridor, in the correct position in the Google Earth aerial photo, if I want to insert this photo in C3D, do I have to make any changes in the google earth settings? For example, change the coordinates from Lat/Long to UTM, or something similar?
Again, Thank you very much for the help!
Good day!
First of all, Bing imagery is shifted for that part of the planet (Puerto Rico). Normally, Bing imagery is correct, but sometimes it's not such as in your particular case.
If you don't have 3rd party software, such as an add-on (subscription type) to add GE Pro imagery, then you can still do it, but you have to do it MANUALLY. What does MANUALLY mean? It means you'll need to (1) scale, (2) rotate and (3) physically move the Google Earth Pro image to it's proper location in modelspace. This is an easy procedure to execute even though the instructions look intimidating and has the tendency to scare off the average user.
Chicagolooper
Excellent explanation, I'm going to work on it manually and once I have the project located in Google Earth, it may be possible to get additional information for my surface model, by searching the TNM point cloud.
Thanks again!
And have a nice day!
Benjamin
Can't find what you're looking for? Ask the community or share your knowledge.