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3D composed shape made of lines for camera track |
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2JimB 
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Joined: 08.Sep.2011 Location: Australia Using: Autocad 2010 Status: Offline Points: 15 |
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 Topic: 3D composed shape made of lines for camera trackPosted: 22.Aug.2025 at 05:44 |
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Ive made a 3D shape consisting of arcs, broken circles and lines.
I can't join it as a continuous line for the camera. Help be appreciated.uploads/213831/line_04.dwg |
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JimB
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philippe JOSEPH
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Joined: 14.Mar.2011 Location: France Using: AutoCAD Mechanical 2017 Status: Offline Points: 1511 |
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Posted: 22.Aug.2025 at 09:02 |
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Hello 2JimB, I suppose that you want to elaborate a video with the ANIPATH command.
You can't create a 3D polyline including anything else than lines, not arc or ellipses. Eventually see my file : CUBE_ANIPATH_02.dwg in the CAD/BIM Blocks library here in the site. It includes a 3D closed polyline that I use to move around 3D object for that ANIPATH command. Ask for move if needed. |
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2JimB
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Joined: 08.Sep.2011 Location: Australia Using: Autocad 2010 Status: Offline Points: 15 |
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Posted: 22.Aug.2025 at 12:17 |
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Joseph thanks for your response, appreciated. Ill follow up on your link. Joseph can I do it with splines and then connect them as a poly... is that possible ?
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JimB
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philippe JOSEPH
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Joined: 14.Mar.2011 Location: France Using: AutoCAD Mechanical 2017 Status: Offline Points: 1511 |
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Posted: 22.Aug.2025 at 16:43 |
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Hello again, I have tried to elaborate a 3D polylines with arcs but whitout success.
Have you already done some ANIPATH and tested all the options ? I don't know with splines and I will test soon because I'm interested.
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philippe JOSEPH
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Joined: 14.Mar.2011 Location: France Using: AutoCAD Mechanical 2017 Status: Offline Points: 1511 |
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Posted: 22.Aug.2025 at 16:47 |
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Eventually do a test with my 3D closed polyline ( it was difficult to do it in some final version).
When I want to show objects I use it. It will give you a complete turn horizontally and then a complete turn in a 45° trajectory.
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2JimB
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Posted: 22.Aug.2025 at 18:13 |
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Joseph... thanks for follow up.
Yer I had ago this evening... I succeeded in doing a complex track 3D. It did run using the spline creation 1st , joined, then to Poly. However it only ran once ... And the line became invisible and I couldn't repeat it as I wanted to slow it down. There were some other issues I had relating to the camera but I don't know I may have f'd that up. But it did follow. The 360 degree track slow down I was trying to do was to establish that it was actually moving vertically I will give it another crack see if I can repeat what I did, if I have any further success I'll let you know. |
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JimB
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philippe JOSEPH
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Joined: 14.Mar.2011 Location: France Using: AutoCAD Mechanical 2017 Status: Offline Points: 1511 |
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Posted: 22.Aug.2025 at 18:49 |
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Hello, when I do an ANIPATH as it take so much time I do a first try of a very short time just to see if everything is "inside", not too far or not centered, then I do the video full length, generally duration 2 minutes.
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2JimB
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Joined: 08.Sep.2011 Location: Australia Using: Autocad 2010 Status: Offline Points: 15 |
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Posted: 23.Aug.2025 at 09:04 |
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Joseph hi, Well I've just had another go. I've been successful. It does work. Ive attached the experiment its not worth uploading to the sight I'll do another exact path I want similar to my first but spline. You'll notice with the attached where the arch is it jumps ... probably too tight but the rest of the path it follows. anyway ... we can both make improvements seems to follow track..., getting where we trying ... :) I've tried uploading the wmv but the site wont let me so my trial is attached. uploads/213831/camera_play.dwg |
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JimB
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2JimB
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Joined: 08.Sep.2011 Location: Australia Using: Autocad 2010 Status: Offline Points: 15 |
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Posted: 23.Aug.2025 at 10:24 |
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Joseph...
This attachment is better. And good enough for me. Open file. In plan view (zoom out so you can see all the track) Under view - Go to motion path animation Camera (pick 'path') - click on track Target pick the little red box in center of the dwelling. Preview - view Finally Got it ... :) What I established is I ended up using 1 single spline then kept modifying in at front view and plan view. Once you get the hang of it its pretty quick.uploads/213831/camera_play02.dwg |
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JimB
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2JimB
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Joined: 08.Sep.2011 Location: Australia Using: Autocad 2010 Status: Offline Points: 15 |
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Posted: 23.Aug.2025 at 10:27 |
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If its any value to anyone their welcome to use it or upload it to the site. I don't want to be associated with the file though.
If the user didn't want the camera to flip (as it does at the end) just shorten the node on the spline to top of the arc in front view. |
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JimB
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