If Statements and Decisions

Grasshopper
1

Hi There. I am working on creating something I have been sketching by hand for a while and want to see how I can iterate it with GH by just moving the initial points and changing the border. I’m a novice with GH and figured this is a good way to learn, but I am at a standstill.

Geom Sketch 001.3dm (43.3 KB)

See attachment for steps. I am stuck at Step 4.
I can make the red shape with all rounded corners using Nurbs Curves or Splines, but what I think I need to do is analyze the angle of the lines generated from Step 2 and use that to determine whether the corner is rounded or sharp. The rule I have made for myself that I think could be an IF statement is: If the interior angle is <= 90 deg then it is rounded with a Nurbs Curve. If it the interior angle is > 90 deg then it is sharp as shown.

I have found tools to analyze the angles, but have not found any ways to make GH use that to make a decision between the two options. I have tried kinky curve but have not had much luck. I have looked into If Statements in GH, but the examples I’ve found don’t let me tell GH “If this angle, then make this. Else make this.”

Thank you!

2

several ways of doing an ‘if’ statement. logically one of the betters ones is to use a ‘>’ or “<” comparison, coupled with a ‘dispatch’, this works well for simple comparisons. another way, you can use ‘expression’ to actually do an IF THEN ELSE

3

Have a try this way.

Canvas at 04;32;03
Canvas at 04;32;031615×618 95.8 KB

Conditional_Fillet_re.gh (16.1 KB)

4

Thank you! I will give these a shot and let you know. The solution by HS_Kim looks very close.