Hi,
I have points and vertices with z values. I want to create smooth lines and smooth dem. However, my each points represent a value which must not be changed.Therefore, I should not create extra point between each point. How can I give this smooth display?
I get your point, the Interpolate Shape—Help | ArcGIS Desktop tool creates a 3D polyline and inserts vertices using the sample distance which normally corresponds to the cellsize of the DEM. This will create the line that follows the surface and does not respect the rule that only at vertices of the line should be taken into consideration.
The way to resolve this, is using some Python code. The code below will iterate all the vertices of the line and create a 3D polyline featureclass (maintaining all the attributes) and convert the vertices to 3D using the elevation from the DEM/DSM:
Below a 3D view of the result: