C# How to find from a List of data a Geometry Class? and check if is not None?

Rhino Developer
1

Could someone explain How you could write this Python code in C# script?

import rhinoscriptsyntax as rs

for m in data:
if(m!=None and rs.IsCurve(m)):
curve = m

I try this but did not work:

private void RunScript(System.Object data, ref object A)
{
if (data != null){
Print(" Great, Data is not Null! “);
Print(” I found data");

 /*
// not work
  if (data ==  Rhino.DocObjects.Custom.CustomCurveObject){ 
 
    Print(" I found an Object Curve ");
    A = data; // data is a Curve!
  }
*/  

}
2 
var curves = new List<Curve>();
foreach(var m in data)
{
   Curve c = null;
   if(GH_Convert.ToCurve(m, ref c, GH_Conversion.Both))
      curves.Add(c);
}
A = curves;

GetCurves.gh (7.7 KB)

3

Dear Mahdiyar!
Thanks for your answer!

This Grasshopper API is new for me
GH_Convert.ToCurve Method
https://developer.rhino3d.com/api/grasshopper/html/M_Grasshopper_Kernel_GH_Convert_ToCurve.htm

There is not a method to do this in RhinoCommon?

4 
if(m is Curve c)
    curve.Add(c);