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    Modeling using .dwg file

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    • S Offline
      smorales02
      last edited by

      I am trying to import a dwg file and use it to model but am running into problems...

      after importing my file (which is a plan view of a site) I figure i should just use it as reference and recreate the lines. is this correct?? If I do this it is hard to redraw arcs as SU brings in the arcs as multiple line segments. So I thought I would group the dwg first than try that way, well this didnt work either as everytime I draw a line over one of the lines it doesnt draw anything.

      So what would be the easiest way to model using a dwg file??

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      • tinanneT Offline
        tinanne
        last edited by

        Hmm, I'm not sure I am understanding exactly what your are asking, but I can give you an idea of what I do.

        What are you trying to do? Build a model from a floor plan? 3D floor plan? Maybe send some screen shots.

        Executive Director : American Society of Architectural Illustrators
        AIP 30 Competition opens soon. ASAI.org

        Architectural Rendering

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        • S Offline
          smorales02
          last edited by

          The attached image is what I have done in ACAD. It is a 2D floor plan basically of a water campus. I would like to import this into SU and model it. How would I go about doing that?


          DWG.JPG

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          • R Offline
            remus
            last edited by

            If you just import it in to SU, then right click->explode you should be able to work directly with the linework you created in autocad.

            http://remusrendering.wordpress.com/

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            • S Offline
              smorales02
              last edited by

              If the exterior wall in my dwg (above image) is all one connected polyline, shouldnt it come in as a face in SU.. It comes in as individual lines, how do I make it a face?

              EDIT: I think I got it, It seems that I have to trace atleast one line in order for SU to recognize the face. is this how it is done or Im I missing something???

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              • R Offline
                remus
                last edited by

                Thats correct, you can draw over a part of the linework to create a face.

                Alternatively, you could use the make faces script, pretty useful if youve got a large DWG.

                favicon

                (www.smustard.com)

                http://remusrendering.wordpress.com/

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                • honoluludesktopH Offline
                  honoluludesktop
                  last edited by

                  Although I do not use ACAD, I use DXF to import my model into Su. The ACAD entity that imports as a surface is a 3DFace. You can ask other ACAD users if other entities import as surfaces. Hope this helps you.

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                  • ToboboT Offline
                    Tobobo
                    last edited by

                    There are a few things that I would do in the cad dwg first.

                    1. Make sure that there are no lines tracing over each other.
                    2. make sure all lines you want to make up faces are joined (snap to endpoint etc)
                    3. Purge your model of all unnecessary geometry ('Purge' command) as well as lines that won’t be in the model.
                    4. I flatten all the geo as well; SU copes better if it does the 3D stuff.
                    5. Name your layers meaningfully and make sure the right geo is on that layer.

                    Then in SU import the .dwg and trace the lines like you have found out or follow Remus' advice.

                    @remus said:

                    Alternatively, you could use the make faces script, pretty useful if you’ve got a large DWG.

                    favicon

                    (www.smustard.com)

                    Hope this helps

                    Toby

                    Philippians 4:13

                    I can do everything through him who gives me strength.

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                    • T Offline
                      tomsdesk
                      last edited by

                      If you don't explode your acad curves, you can select them in SU as one entity then increase the number of line segments, in the "entity info" toolbar, to smooth out the curve.

                      http://www.tomsdesk.moonfruit.com/
                      2.5D Trees & Shrubs!

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                      • S Offline
                        smorales02
                        last edited by

                        Thanks for all the replies. I am beginning to get the hang of SU now. I was able to do it by just tracing one of the lines and it makes all the connected lines a face, but I will try out that script next time.

                        Another question? When a .dwg is imported is it placed in the same coordinates that it was in ACAD in SU. im asking cause we draw using real world coordinates and would eventually like to show my models in the real world.

                        Thank you

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                        • D Offline
                          dylan
                          last edited by

                          If when you import the .dwg you tick the box 'preserve drawing origin' in the Options box, then you should keep the drawings origin as in ACAD.

                          http://dmdarchitecture.co.uk/

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                          • S Offline
                            smorales02
                            last edited by

                            Cool, I had that box checked I just wanted to make sure thats what it did.

                            Thanks

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