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Thread: creating a site from list of coordinates

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    Default creating a site from list of coordinates

    Is it possible to import a list of coordinates into revit?
    I need to create a toposurface for a project. Really don't care if it's a Site or a Mass, but I do need to be able to import/use a list of xyz-coordinates to create the surface. The coordinates come from a Total Station site-measurement and usually contain somewhere between 50-200 coordinates (depending on how big the site is).

    First I tried making a surface by using the import tool (Create Toposurface from Import) but for some reasons this doesn't work. Does anyone know the default format of this tool? How do I need to present the data to get a useful site (my try looked more like a pincushion than a site).

    After that I tried to create a Mass by using reference points. Didn't work because I can't get the xyz-coordinates for the points to schedule. Am I doing something wrong here, is this possible?

    These were my ideas, I'm fresh out. Does anyone have any suggestions?

  2. #2
    Revit Technical Specialist - Autodesk Scott D Davis's Avatar
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    Default Re: creating a site from list of coordinates

    Yes, its a built in tool in Revit. You are missing one thing...in step 3 below, click on the drop-down arrrow of Create from Imported to get a choice to use a file.

    1. Go to Massing and Site
    2. Choose Topography
    3. Click on Create From Imported drop-down in conextual tab
    4. Choose Specify Points File
    5. Browse to find your CVS or comma delimeted points file
    6. Click OK to get out of dialogs
    7. Click the Finish Surface green check mark
    8. Done

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    Default Re: creating a site from list of coordinates

    For what you're saying, it sounds as if the data you are trying to import is not in the correct format for Revit to understand and translate into a toposurface.

    The correct format is this:

    A .csv file, containing the following information per each line of text:

    x,y,z, coordinates of start point of line 1
    x,y,z coordinates of end point of line1
    x,y,z, coordinates of start point of line 2
    x,y,z coordinates of end point of line 2
    etc..

    For example:
    216.31,-8.56,0.00
    216.31,119.69,0.00
    -94.63,-8.56,0.00
    216.31,-8.56,0.00

    Attached, is an example .txt file, that you can use to create a toposurface, following the steps provided in Scott's message.

    (Note: first you need to save this .txt file as a .csv file. I tried to upload the .csv but Augi did not let me upload that type of file)
    Attached Files Attached Files
    Last edited by alfredo medina; 2010-05-05 at 11:58 PM.

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    Default Re: creating a site from list of coordinates

    Thanks for the replies!! Found the problem. I had to perform some modifications on the txt-files that were handed to me (delete all the numbers of measurement, the format of the textfile was: FOLLOWUP NUMBER, x, y, z). After that I resaved the file from Excel as a csv, not realising that this automatically changes the separators from , to ;
    As always: a very simple solution once you know it...

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    Default Re: creating a site from list of coordinates

    Martin,

    So you had an extra first column with a serial number,1,2, etc. like:
    1,216.31,-8.56,0.00
    2,216.31,119.69,0.00
    ...

    Instead of:
    216.31,-8.56,0.00
    216.31,119.69,0.00
    ...

    OK. I am glad to see that the issue was solved.
    Last edited by alfredo medina; 2010-05-09 at 02:31 AM.

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