sketchucation logo sketchucation
    • Login
    ℹ️ Licensed Extensions | FredoBatch, ElevationProfile, FredoSketch, LayOps, MatSim and Pic2Shape will require license from Sept 1st More Info

    AutoCAD

    Scheduled Pinned Locked Moved SketchUp Discussions
    sketchup
    22 Posts 13 Posters 3.1k Views 13 Watching
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as topic
    Log in to reply
    This topic has been deleted. Only users with topic management privileges can see it.
    • A Offline
      Archi Rag
      last edited by

      make sure it is set on paralell projection (in camera menu) when u export the image, then select the iso view (in view>standard views menu)

      check that the units in the properties dialogue is set to the correct ones (millimeters / inches)

      otherwise it should work

      1 Reply Last reply Reply Quote 0
      • S Offline
        SolarInnovations
        last edited by

        I have done all of the above, parallel projection, standard view-iso, and the dimensions - i tried both arch 2D and arch 3D and there was no difference. I don't understand why it's not working correctly either. any other suggestions?

        1 Reply Last reply Reply Quote 0
        • A Offline
          Archi Rag
          last edited by

          post the file?

          1 Reply Last reply Reply Quote 0
          • T Offline
            toan76
            last edited by

            Of course, dimensions simply cannot be true in an ISO, you need AXON instead. But SketchUp (and all 3D programs I know) doesn't support AXON.

            @solarinnovations said:

            I have done all of the above, parallel projection, standard view-iso, and the dimensions - i tried both arch 2D and arch 3D and there was no difference. I don't understand why it's not working correctly either. any other suggestions?

            1 Reply Last reply Reply Quote 0
            • D Offline
              dammerel
              last edited by

              when importing in acad make sure the units are set the match the sketchup file
              andrew

              1 Reply Last reply Reply Quote 0
              • C Offline
                caronte01
                last edited by

                In isometric, you should get real dimensions. Lines on the x, y and z direction should be to scale(1:1). There´s probably a bug in 2d iso export that will export isometrics at .8 ish of the correct scale. I´ve also had it. The solution has been to scale with reference in acad the exported dwg.

                S

                1 Reply Last reply Reply Quote 0
                • T Offline
                  toan76
                  last edited by

                  See the attached. Or just try by yourself: draw a cube in ACAD, switch to an ISO view, print out at 1:1 scale, measure it on paper. Think about this case: a circle in ISO view is an ellipse. How can the dimensions of an ellipse are the same as those of a circle?

                  @caronte01 said:

                  In isometric, you should get real dimensions. Lines on the x, y and z direction should be to scale(1:1). There´s probably a bug in 2d iso export that will export isometrics at .8 ish of the correct scale. I´ve also had it. The solution has been to scale with reference in acad the exported dwg.

                  S


                  ISO.png

                  1 Reply Last reply Reply Quote 0
                  • S Offline
                    SolarInnovations
                    last edited by

                    i understand that an iso isn't going to have true dimensions, but at the present moment we draw our iso's in autocad with true dimensions, which are later referenced in the detail drawings. We are trying to see if sketchup would be a more beneficial program to use in drawing our iso's, the only problem is that we would still need to be able to reference the iso for true dimensions when drawing the details. I didn't know if there was a way to auto scale the sketchup drawing so it would be the correct scale when you place the 2D into AutoCAD. thank you all for your responses. any other ideas are still welcome.

                    1 Reply Last reply Reply Quote 0
                    • Chris FullmerC Offline
                      Chris Fullmer
                      last edited by

                      If you just want to autoscale it, play with the .dwg export settings. You can specify a scale there. So you would be able to scale it thereif desired.

                      Chris

                      Lately you've been tan, suspicious for the winter.
                      All my Plugins I've written

                      1 Reply Last reply Reply Quote 0
                      • A Offline
                        anipint87
                        last edited by

                        I imported my plan (autocad file .dwg) using sketchup to make 3d model. but why is it like that?! for example, in an autocad file the measurement of my door at my plan is 1.00 meter but when i use import in sketchup it and measured it, it turned into 0.30 meters... why is it like that? did i miss something?

                        1 Reply Last reply Reply Quote 0
                        • jujuJ Offline
                          juju
                          last edited by

                          Were the export and import units set the same? The difference between the measurements you mention seem to be roughly the same ratio as meter to foot.

                          A quick and easy way to scale it to the correct size is to:

                          • First check to see that the units are set the same.
                          • Measure something you know the exact measurement of (eg. your door of 1000mm).
                          • Once you've finished the measurement (i.e. second click) punch in the correct measurement on the keyboard.
                          • SU will prompt you to make sure you want to scale, you obviously say yes.
                          • Things should be to the correct scale now.

                          Save the Earth, it's the only planet with chocolate.

                          1 Reply Last reply Reply Quote 0
                          • A Offline
                            anipint87
                            last edited by

                            the setting of unit in my autocad was in meters and also in sketchup before I imported the file. my friend also encounter the same problem as I did. As I've said on my last post on autocad it is 1.00meters (I've also plot it on a paper and scaled) but when I imported it, and measured it, it was 0.30m which is written on the lower right of sketchp... maybe I'm just not yet aware on how properly import it. thanks

                            1 Reply Last reply Reply Quote 0
                            • Chris FullmerC Offline
                              Chris Fullmer
                              last edited by

                              Could you upload the cad file here? or is it private work stuff?

                              Chris

                              Lately you've been tan, suspicious for the winter.
                              All my Plugins I've written

                              1 Reply Last reply Reply Quote 0
                              • GaieusG Offline
                                Gaieus
                                last edited by

                                Yes, it definitely sounds like a unit mess-up (from metre to foot).

                                Gai...

                                1 Reply Last reply Reply Quote 0
                                • C Offline
                                  caronte01
                                  last edited by

                                  Hi guys.

                                  I´ve had this before, and, as described elsewhere, i´ts not a units issue. It´s easy to test by exporting a plan or an elevation, and then an iso. Plans come to scale, so do elevations, it´s only isos that come out scaled. They are scaled at .86, i believe.

                                  1 Reply Last reply Reply Quote 0
                                  • Chris FullmerC Offline
                                    Chris Fullmer
                                    last edited by

                                    I think that is something else. ISO come in scaled differently because the camera is not looking straight at any axis, but looking instead equally skewed at all 3 axis. so they come in uniformly scaled down by +/- .86. He has said that his is having a scaling issue just from a CAD import into SU, and its a scale factor close to the .3 range. Seems more like a scaling meter/foot or unit/foot. Perhaps he is in engineering feet, thinking he is in meters, since that works on a decimal system?

                                    Chris

                                    Lately you've been tan, suspicious for the winter.
                                    All my Plugins I've written

                                    1 Reply Last reply Reply Quote 0
                                    • VLADIMIRZMV Offline
                                      VLADIMIRZM
                                      last edited by

                                      @unknownuser said:

                                      ISO come in scaled differently because the camera is not looking straight at any axis, but looking instead equally skewed at all 3 axis. so they come in uniformly scaled down by +/- .86.

                                      ISO means equal, then all parallel lines to any axis must be drawing with real dimension and should not be scaled . the lines that aren't parallel to any axis hasn't a real dimension. In this way an ellipse (an especial ellipse called ISOCIRCLE) is graphically equal (yes it is) to a cicle see image.

                                      i'm a technical drawing teacher and i've been had this problem since skecth 4, i think is a bug inside exporter. isn't an issue of units, believe me i've tried everything 😉


                                      isocircle.png

                                      1 Reply Last reply Reply Quote 0
                                      • Chris FullmerC Offline
                                        Chris Fullmer
                                        last edited by

                                        Ah, i think there is confusion (certainly on my part) because this thread was changed about 12 posts in. The first question indeed is about ISO. someone came after with a question that sounds more like a unit setup question though. So yes, the ISO stuff (the original question)is not about units, but about the ISO. The second question seems to be about units. And it would still be nice if he could upload his file for us to look at.

                                        Chris

                                        Lately you've been tan, suspicious for the winter.
                                        All my Plugins I've written

                                        1 Reply Last reply Reply Quote 0
                                        • AnssiA Offline
                                          Anssi
                                          last edited by

                                          I have noticed this behaviour too. I think the basic reason is that parallel projection exports are correctly scaled across the picture plane, so that would make the objects parallel to the model axis in an ISO export foreshortened. Switching to an ISO view from a plan view only changes the viewpoint and has no effect on scaling. If you draw a cube or a square and export an ISO view, the top horizontal diagonal will be to scale. Of course this is not according to standard.

                                          Anssi

                                          securi adversus homines, securi adversus deos rem difficillimam adsecuti sunt, ut illis ne voto quidem opus esset

                                          1 Reply Last reply Reply Quote 0
                                          • G Offline
                                            gaucho
                                            last edited by

                                            (foot to metre issue)

                                            have you checked if in the pop up import dwg window, in the button options, your unit is the same of your cad file?

                                            It's a different thing of the units in the SU file itself.

                                            you're actually leting the SU know the units of your cad file...

                                            "eat well, stay fit, die anyway..."

                                            1 Reply Last reply Reply Quote 0
                                            • 1
                                            • 2
                                            • 1 / 2
                                            • First post
                                              Last post
                                            Buy SketchPlus
                                            Buy SUbD
                                            Buy WrapR
                                            Buy eBook
                                            Buy Modelur
                                            Buy Vertex Tools
                                            Buy SketchCuisine
                                            Buy FormFonts

                                            Advertisement