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05-01-2020 12:51 AM

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I use Vision Assistant 2019, 32 bit.

When I have 2 points from Find Circular Edge, I use Caliper: Line Fit, to make a line from that 2 points.

And then Set Coordinate System, using angular motion mode, which the only X-axis angle that I can refer to is the line from Line Fit.

Finally I saw that the X-axis angle is not related to the line that I refer to.

Is there any explanation?

Or is there other method that I can set the x-axis correctly to the line?

Thanks.

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07-07-2020 02:04 AM

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Hi

I had tested the Set Coordinate Function in different angles of the detected point. All my coordinate showing perpendicular 90 degree. I believe you have the Geometry setup in rotation mode, therefore your set coordinate doesn't look perpendicular.

Elson

Technical Support Engineer

NI | Penang

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07-07-2020 11:16 PM

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Hi Elson,

Thank you. Unbelievable someone looked at this question.

My question may not be clear to you, so I would repeat:

1. Get two points

2. Draw a straight line between those two points.

3. Set a coordination system on one of those points, with X exactly on the straight line that just made (and Y will be perpendicular to the straight line)

You may try with any picture that has two circles.

-Dog

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07-08-2020 03:22 AM - edited 07-08-2020 03:23 AM

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Hi man

Can you clarify how to draw the red line? I tried the caliper but I did not get to draw a straight line between two points.

Elson

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07-13-2020 03:34 AM

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Hi,

You can use this function to build a coordinate system

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07-14-2020 10:48 PM

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Let me teach you.

Select Caliper, and then inside Caliper, select "Line Fit".

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07-14-2020 10:54 PM

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This is exactly what I want.

But it seems impossible in Vision Assistant. Or it could be a bug..