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Lofting taxilines problem in Gmax.

J

jgraddon

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unitedkingdom
Following the tutorials on this site, every time I loft a line in Gmax, the loft goes in both directions. i.e. a 20m loft would go 10m one side of the guide line and 10m the other side of the line. All the examples on here and that I have watched on YouTube the line only lofts in one direction which is what I want. Just wondered if anyone knows what I am doing wrong!
 
welcome to forum jgraddon,
Could you please provide a tutorial link so we know exactly what you are following to. Also have a look this tutorial on youtube, that is how to use loft tool. This tutorial is for 3ds max, but you can follow it using gmax.
 
A few things to take into account, the rectangle, delete the three sides and left just the top side. all the splines must be in the 0,0 position, and make all the operations in the top view.
 
Yup! I am doing all that. But still the loft uses the guide line as the centre of the loft.

Thanks for the quick replies by the way!
 
Absolutely the same, I just tried to follow both MAX and GMAX, both tutorials - youtube and FSDev... with no matter of position.. may be I do somthing like I do not know how to do it wrong ? Just like systematically :D
 
Sorry maybe I misunderstand something,(my english is very poor:() but you say: "still the loft uses the guide line as the centre of the loft" don't should this work in that way ?
Anyway I make a mess too when lofting those taxiways, before I see clear how worked, very easy really.
 
In all the examples the loft is in one direction only from the guide line. When I loft the loft goes in two directions either side of the guide, so haslf of the loft is going in the wrong direction.
 
the loft line must be a continuous line. just one line. and not desperate :o. you will get your taxilines. above all try with a new one, a test file. and check in MCX.
 
The lines I have tried to loft have always been single lines. Always with the same result, they loft on both side of the lines regardless of the shape or size, straight or curved.
 
Here is an image of the problem.
 

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If you are making loft for taxilines I would reduce all those segments, in "compound objects" -Skin parameters , set the "shape steps" and "path steps" to Zero. we are working for Fsx.
apart from this I not see any thing weird.
 
The weird thing is it has lofted both side of the guide line, unlike in all the tutorials and video where it only lofts in one direction, this of course ruins the taxiway edge. The picture is of course before I simplified the loft for fsx and as an example only.
 
In creating a loft, remember the shape's pivot point should be placed where it will align with the path. Your shape's pivot appears to be centered, rather than aligned with the rightmost vertex (or further right), so the shape is centered on the path, rather than to the left of the path as you wanted.
 
:) I wish I understood that Hairyspin, it sounds like the answer, I think, can you elaborate for a gmax dummy like myself?
 
Loft will use the center of the template as a reference point.
The center of the template (rectangle that you created and delete all the other sides except the top one) will be along the line that you want to loft.

The solution is, go back to the template that you draw and click on the third tab of hierarchy panel and click affect pivot only-> center to the object. This should solve your problem.

Try this thread might help more understanding about the center of the template.
http://www.fsdeveloper.com/forum/showthread.php?t=424454
 
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Hi jtanabodee, I just made it last night, so yes it is pivot point. And the pivot will be on the middle of spline allways. That is true, he needs to go to third tab of hierarchy panel and click affect pivot only, then do not centre to object, but go to the align icon on main toolbar area > click on that and align on the shape itself. Just click on it. Menu dialog will appear then follow the steps shown below.

image.jpg


Check all position axes and choose minimum or maximum of current object, dont use target object options. that remains on centre. See pivot changed position ? Hit OK.
image.jpg


Loft. See that little cross ? that is the shape origin we just made. Left is what you want - right is centered (dont want)
image.jpg
 
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