(HELP) Making Polygon (or circle) with vector normal at the specitic points in Grasshopper

@kimkyung83 wrote:

Hi, I try to draw polygon at point that extract from surface. However I couldn’t make it out so that I tried a circle by doing ‘evaluate surface’. The problem is that I don’t know why there is two circles came out. Somebody can help me out, please?

Capture.PNG1005x671 184 KB

grasshopper capture.PNG1214x540 56.9 KB

Or some can tell me how to draw a circle/polygon with vector normal from specific points, it will be perfect.
Here are the files.27.05.2018_FACADE TRIANGLE STUDY-3.gh (11.6 KB)
rhino.3dm (11.8 MB)

Thanks, KIM

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