I have a series of polylines, deconstructed to their control points. I wish to find the point with the lowest X and Y value, and display text there, in this care a text showing the area for each polyline. I imagine sorting in two rounds makes sense. The highlighted point has first lowest Y point, t…

[image] benjamin: I imagine sorting in two rounds makes sense. The highlighted point has first lowest Y point, then from remaining two points with identical Y points, the lowest X point. Kind of Similar way like what you said… [Canvas%20at%2003%3B49%3B46] GetPoint_re.gh (9.2 KB)

Thank you! It seems to work, but what I don’t understand is that it seems to remember if the polyline was flipped/mirrored and refers to the point in relation to that transformation, which is odd. So bottom left becomes top left if I have mirrored that polyline before. I’m using a geometry pipeline …

Check this as well…a bit more reliable. [Canvas%20at%2005%3B38%3B23] GetPoint_reV2.gh (13.2 KB)

Nice!! So you sorted the list of points taken from the polyline, took a subset of the top two points and sorted the X value, retrieving the top value, right? Could you explain the This & That gate part?

Here is another approach. GetPoint_reV3.gh (8.2 KB) [image]

With no geometry posted from the OP, I skipped this party… But here is one more way, using Sort Points: [GetPoint_2019Jul17a] GetPoint_2019Jul17a.gh (7.7 KB)

Thanks everyone, it’s turned into a useful little script!

Could someone explain why flipping curves is necessary to get this to display correctly in some of these solutions? For mirrored curves for example? [image]

Could you post your script ? A screen capture is not often enough. Don’t forget to internalize some data.

Ah, the problem was I was offsetting the line after, which was messing around with the position of the text @Adam_M 's solution works great! Thank you everyone!

Finding the point with the lowest X and Y value

Grasshopper

Adam_M (Adam Mounsey) July 17, 2019, 6:57am 6

Here is another approach.
GetPoint_reV3.gh (8.2 KB)

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Finding the point with the lowest X and Y value

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