I would like to draw a polyline with Buge in 3D.
I know that i have to use a LWpolyline to do that.
So to draw a LWpolyline in 3D I have to change my UCS, i think.
The fact is that I do not succed to do that.
I found the SetUcs function from AcDbViewport but i have no idea about how to set it actived to enable me to draw in this new coordinates system.
Hope you could help me.
You shouldn't have to create a new UCS. You can create your polyline in the WCS (e.g. in the xy plane) and then call its transformBy function, passing in your transformation matrix to transform it to the coordinate system you need (the coordinate system you wanted to create the UCS for).
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