Spider Line in a 3D (or Curved)

[HushamHassan]

I am using Esri Javascript API 4.6
Is it possible to Assign an elevation at the end of spider lines- from my store point elevation (total Count). or how to curve them as 
Figure one is what I have so far, when clicked on any store it show a flat spider line (feature Class with definition expression).
Figure 2 is what I need to accomplish.

[HushamHassan · Accepted solution]

Solved by Using Construct Line of sight,  and assigning 0 to the elevation in the target field  solved it.

[RalucaNicola1]

Did you pre-calculate the elevation in ArcGIS Pro and then published the lines? I guess you can also do that client-side by manipulating the z values in the polyline geometry, but it's probably better to save the computation for something else if they have values that never change.