@dave-o?ÿ Thank you for the suggestions on the coordinate systems and the links.?ÿ I'll check them out next week.
@mathteacher Thank you for the explanation regarding latitude and longitude and the zones.
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Hi Brian
A few concerns. What are you using the Survey Pickup for (design, Asbuilt record?) and will you be sharing anything out to Clients or Contractors??ÿ Just based on your admitted experience, im concerned that figuring out matching coordinate systems within C3D and your Survey software may not be the best use of your energy.?ÿ Can you share some more details of your site??ÿ Mainly, is there previously established Site Control??ÿ Are you going to be doing any layout? Where you supplied a Legal Base? Anything in Edmonton should be done in 3TM, i notice your set to HT_2.0 and most of Alberta is using GSD95, and Can-net defaults to CGVD2013.?ÿ for your experience level i would also not set a coordinate system in your C3D, your not familiar enough with what your data collector is spitting out adding another variable (CAD coord sys) wont help.?ÿ?ÿ
Sorry lots of questions, but send me a message if your still need help (i believe your post is 3 days old)
Hi Jim, thanks for the reply.?ÿ The survey data is used to generate site plans for our reports.?ÿ The figures show some general site features and the work we undertake on a site.?ÿ This could included the location of boreholes, retaining walls, remedial excavations, topos, cross sections as needed based on excavations.?ÿ We also use lidar data for slope analysis.?ÿ Pretty general, and sometimes basic, figures that deal with geotechnical or environmental work.?ÿ The first image I uploaded in my first post is an example.?ÿ
I noticed in your profile you're from Alberta, so you know that site controls in the Edmonton area include property pins and Alberta Survey Control Markers.?ÿ That being said when we survey we do not make an effort to go and find or survey either of them unless they can be easily seen or required for the project.?ÿ We tend to survey, download the survey data, import into Civil 3D, align the survey data over an aerial, and then generate figures for the report.?ÿ We do not usually undertake any layout, unless for example, to layout planned borehole locations in an area.?ÿ We do not do legal surveys.?ÿ We are very seldom provided a legal-base.?ÿ Sometimes we do receive dwg files from clients, but they usually have their coordinate system specified for the file.?ÿ And, I cannot remember the last time we shared a dwg file.?ÿ We previously used a Leica TPS 800 for surveying, but our owner upgraded to the Spectra a few years ago to improve our accuracy, allow one person to survey, easier topos, and allow easier surveys in more remote areas, such a undeveloped areas where it would be difficult to use the TPS 800.
The settings in the Spectra, as shown in the previous screenshot, were how we received it, so to speak.?ÿ That is, when we use the Word wide/UTM the other settings self populate and we do not change them.?ÿ After I went down this rabbit hole of trying to understand why our survey was skewed and based on some replies I had a look at the Spectra settings and tried to find a 3TM coordinate system to use but their descriptions are a bit difficult to understand.?ÿ I have a support call into Cansel to see if they can provide some guidance for selecting a 3TM coordiante system in the Spectra.?ÿ And yes, we did have some limited training on using the Spectra, but it was more this is how you turn it on, how to connect to Cannet or a base station, how to download, etc.?ÿ Nothing really on selecting coordinate systems.?ÿ Each of us in the office use to do our own drafting in C3D or LT for our projects, but for the few months we've had a draftsperson to complete the drawings.?ÿ They are fine with working with coordinate systems in C3D but are not familiar with Spectra settings.
Based on your reply, you recommend that when bringing the survey data into C3D we set up the dwg file as having no coordinate system??ÿ I'll mention it to our draftsperson to try when they are back from a few days off.
Appreciate all of the help.
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