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find order from smallest to biggest value

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olivierth
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Hi!

If I have 3 points with @myValue:
pt0: 1.5
pt1: -12.89
pt2: 561.8

… and I want to find the order from smallest to biggest value and set that in attribute i@myOrder so it gives me:

pt0 @myOrder = 2
pt1 @myOrder = 1
pt2 @myOrder = 3

I could do it with a bunch of IF statements but I'm sure there's an easier way. Any idea?

-Olivier
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olivierth
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…Actually, I over-simplified my example.

My situation is this. I have a triangle and I managed to find the angle at each point and placed those values in @aglA, @aglB, @aglC. From there, I need to find smallest to biggest value and end up with:

pt0 @myOrder = 2
pt1 @myOrder = 1
pt2 @myOrder = 3

…since each value is stored on ALL points, I don't know how to proceed…

-Olivier

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BabaJ
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You could store the point values in an array of floats, then use the sort function which will change the order of the points from least to greatest value.
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olivierth
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I know how to read a point attribute value (point function), but I would like to do the opposite and write a value on a specific point attribute.
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olivierth
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I just saw your post after I replied.

The sort function is interesting but I don't get how to go from a sorted array to figuring what point number has the smallest value… I'm lost!
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olivierth
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AH!

Found it!

…
// find angles using each vectors
float aglA = acos(dot(vab, vac));
float aglB = acos(dot(vba, vbc));
float aglC = acos(dot(vca, vcb));

// set point value from angle A, B, C
f@angle = 0;
setpointattrib(0, “angle”, 0, aglA, “set”);
setpointattrib(0, “angle”, 1, aglB, “set”);
setpointattrib(0, “angle”, 2, aglC, “set”);
Edited by olivierth - Sept. 26, 2018 14:24:49

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BabaJ
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Saw you posted while I was responding…ignoring your last post as you seem to have found a way to do what you want, but to answer your question about sort in the context you gave earlier, thought you might want to look at this.
Edited by BabaJ - Sept. 26, 2018 14:41:12

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olivierth
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Ah!
Array_For_Sort [ @ptnum ]

that's a nice trick!

Thanks!

-Olivier
Edited by olivierth - Sept. 26, 2018 19:27:15
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