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I am mystified.
I am no expert on surfacing, but:
I was pretty sure I could create a series of boundary blends and merge them to create a single quilt.
Today, I can't. I end up with a curve, not a quilt.
I have a series of x,y,z coordinates in Excel, which define a domed surface.
I have created , in Wildfire 4, a set of datum points offset from a coordinate system, using the x,y,z data from excel.
I created a series of datum curves through these groups of points.
I created a boundary blend, using an adjacent pair of these datum curves as the Direction 1 curves and the curves across the ends of this adjacent pair of curves as the Direction 2 curves.
I repeated this process, until I had a set of boundary blend surfaces that resembled what I wanted to create.
I then tried to merge adjacent pairs of boundary blend surfaces to create a single quilt defining the whole part surface.
That's where it went wrong: I was left with a curve at the join between the adjacent boundary blends, instead of the quilt I was expecting.
I'm sure I've done this successfully many times in the past (on WF2), but now I'm starting to doubt my memory and my strategy.
I would appreciate some assistance here, as I am stumped on what I thought was a pretty simple exercise.
WF4, m220
Cheers,
John
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Hi Is it possible that - by mistake - you used the intersect rather than the merge function? Try this: switch selection filter to 'quilts', ctrl-select two boundary blends at a time and merge them via #Edit#Merge. Just to make sure that you don't klick on a wrong icon in your toolbar...
The issue is accuracy. Your Excel is not as accurate as Pro needs to stitch the boundary.
Set the filter to geometry, select the four edges of each boundary surface and then click Edit, Extend. Use a value that extends the boundary out enough give a clean intersection (I.E. merge by intersect).
That should solve the issue. The only way it will not is is you have a high curvature along a boundary and the extend twists the new surface to a degree that creates multiple solutions. My guess is you will be okay.
Thank you all for your help on this subject. It appears that the problem was down to incompetence!
I recall in WF2 (I think!) having to hide everything except the final merge, so that is what I was doing. In WF4, you have to leave the final Boundary Blend unhidden as well.
So, either my memory was playing tricks, or I was just not trying enough variations on a theme. Either way, it's all working now.
Cheers,
John