Set a Coordinate System in Vision Assistant has wrong x-axis angle

[dog-block-sock]

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.

[Elson9988]

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

[dog-block-sock]

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

[Elson9988]

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

[cmbd]

Hi,

    You can use this function to build a coordinate system

[dog-block-sock]

Let me teach you.

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

[dog-block-sock]

This is exactly what I want.

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