How to make a Delaunay triangulation with points (only X,Y coordinates; without elevation)

[ConnieSu]

Hi,

I need to link points that have only X,Y coordinates (without elevation) with a Delaunay triangulation. However, when I use "Create TIN", it shows a error message and don't create what I need. Any suggestions?

Thanks and regards!

[DanPatterson]

Free advanced tools -Thiessen Polygons Delaunay Tr... - Esri Community

might work for you

[ConnieSu]

Thanks for your reply and your help! I've downloaded the files and tried to use the toolbox; however, as I'm using ArcGIS Pro 2.9, it won't work, right? I've got some error messages:

" Traceback (most recent call last):

  File "C:\PythonStart\tbx_tools.py", line 810, in <module>

    elif tool in ['Bounding Circles', 'Convex Hulls', 'Extent Polys',

  File "C:\PythonStart\tbx_tools.py", line 801, in _tool_

    all_flds = cls_flds + [stat_fld]

  File "C:\PythonStart\tbx_tools.py", line 755, in pick_tool

    # tbx = ImportToolbox(tbx)

  File "C:\PythonStart\tbx_tools.py", line 577, in tri_poly

    out_kind = shp_kind

  File "C:\PythonStart\tbx_tools.py", line 219, in _in_

    r"""Check file name and file path for compliance.

  File "C:\PythonStart\npg\npg_arc_npg.py", line 285, in fc_to_Geo

    cols = IFT_.shape[0]

UnboundLocalError: local variable 'IFT_' referenced before assignment

Failed script Delaunay...

Failed to execute (Triangulate)."