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WCS or ACS? (#3280)
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mikeschn  
#1 Posted : Tuesday, August 10, 2010 5:03:34 AM(UTC)
mikeschn

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How do I know when Shark is using the WCS (work coord. system) or the ACS (absolute coord. system)?

I've rotated the work plane to the front view in the model I am working on. So now the Y axis points up. Or does it still point rearward?

If I do a translate in the y direction, the solid model moves up. That's good, it's using the WCS.

But if I rotate about the y axis (using the y from the pull down menu in rotate) it's using the absolute y (ACS).

How can I change it so that everything ALWAYS uses the WCS?

Thanks,

Mike...
ViaCAD Pro 12 on Windows; Viacad Pro 14 on Mac
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mikeschn  
#2 Posted : Friday, August 13, 2010 6:30:28 AM(UTC)
mikeschn

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Does anyone else move the Coordinate System (Work Plane) or is it just me? Is it confusing to you when you reposition the work plane?

I have looked at it a little closer, and it appears that when you move the work plane you can:

1) transform according the work plane

2) draw according to the work plane

3) rotate work plane normal


These items are relative to the absolute coordinate system

1) verify distance x, y, or z

2) rotate x axis, y axis or z zxis

Mike...
ViaCAD Pro 12 on Windows; Viacad Pro 14 on Mac
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Tim Olson  
#3 Posted : Thursday, August 19, 2010 10:32:32 AM(UTC)
Tim Olson

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>>How do I know when Shark is using the WCS (work coord. system) or the ACS (absolute coord. system)?


The work plane is used for:

--Creating objects with minimal info. For example, a one point circle will use the work plane normal for the plane of the circle. However a three point circle will create the plane from the three points.

--Snaps. If no data is referenced, the cursor is projected into the plane of the work plane. Snap Along X, Snap Along Y, Snap Along Z are with respect to the work plane coordinate system. PrecisionPoint does provide an interface to entering data in a variety of coordinate systems including workplane coordinates.

The data entry window and inspector use absolute coordinates.


Tim





Tim
Tim Olson
IMSI Design/Encore
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bradcan  
#4 Posted : Monday, September 20, 2010 3:42:55 PM(UTC)
bradcan

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Joined: 8/3/2008(UTC)
Posts: 55
Originally Posted by: mikeschn Go to Quoted Post

How can I change it so that everything ALWAYS uses the WCS?

Hi Mike

Like me, you're obviously used to modeling s/w which lets you work in an arbitrarily defined user co-ordinate system! Hay man what a great idea. ;)

As Tim says the data entry dialogs use the ACS. So the answer to your question is YOU CAN'T. :(

In fact you will find that there are many things which do depend on the current WorkPlane orientation; eg. Mid-plane extrude, arrays and many others.

I move the work plane around all the time. There are several useful methods; I probably use '3 Pts and 'Set Origin' most, but others in the 'WorkPlane' menu are 'Select Objects' and 'Offset'. 3 point is particularly useful because when I select 'View', 'View the Plane' the view is what I expect (ie looking towards the WCS origin down the Z axis, Y up and X to the right). To reduce the number of menu clicks I set-up hot keys for all these.

Persevere, when you finally penetrate the vagaries and lack of documentation VC is a great, if at times frustrating tool. :rolleyes:

Brad
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chipmaker2  
#5 Posted : Sunday, October 10, 2010 6:41:48 PM(UTC)
chipmaker2

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These items are relative to the absolute coordinate system

1) verify distance x, y, or z

2) rotate x axis, y axis or z zxis

Mike...


Mike for rotating use WorkPlane normal or arbitrary axis instead of X,Y,Z. And it will rotate using the user WorkPlane. For verifying a distance on a plane turn on snap to plane only and the actual distance will be given. Hope this helps.
Chuck
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