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Feature request: Ruby/Python automation of "auto measure" #333

Kazzz-S opened this issue Aug 26, 2019 · 3 comments


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commented Aug 26, 2019

Hi Matthias,

"Auto measure" is a handy feature of KLayout!
I wonder if this can be "doubly automated" by Ruby/Python.

Given: A layout design and a list of distinct points, each of which represents a single mouse click point in "auto measure."
Output: A set of annotations (rulers) inserted into the layout design.

Please refer to the attachment that contains a sample OASIS data, AutoMeasure-01-Points.oas and two image files.

In Fig-01.png, yellow rectangles (their center points) correspond to the mouse click points to draw "auto measures."

The result should be as shown in Fig-02.png.

In the sample data, there are such 1871 "sampling points."
To gain speed and to enable a precise click on each sampling point, automation is essential.

Those generated "cut vectors" are further used to control a machine to measure the width and the cross-sectional profile of the fabricated trace.

Is this functionality achievable with existing functions?
If not, I'll appreciate if you take this as a future enhancement request.

With best regards,

Initial discussion in KLayout Forum


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commented Aug 26, 2019

Please see PR #335 for details about the implementation. If this solution is fine with you, I'll merge the PR.



@Kazzz-S Kazzz-S changed the title Ruby/Python automation of "auto measure" Feature request: Ruby/Python automation of "auto measure" Aug 26, 2019


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commented Aug 26, 2019

The suggested interface of the new feature in #335 is exactly what I want!

Thank you so much for your prompt action.

With best regards,

klayoutmatthias added a commit that referenced this issue Aug 28, 2019
Merge pull request #335 from KLayout/issue-333
Fixed issue #333 (automation of auto-measure rulers)

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commented Aug 31, 2019

Here are some updates :-)
I've implemented this new feature LayoutView::create_measure_ruler() in PYA.

It's fantastic!!!

It took about 15 sec (on 64-bit Linux) to automatically create 1871 rulers.

Once again, thank you very much for providing the new feature.

With best regards,

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