and have the aspect, slope and constant values for the equation, but I then found out that the $$XMap and $$YMap functions were removed from ArcMap 10. I tried it with ArcMap 9 on a different computer and it crashed the program.
This is the equation I used in raster calculator (in v9): $$XMap * (2.75835) - $$YMap * (3.26735) - 27105.9 (british national grid, analysis extent set to the same as a polygon shape file, cell size 0.5)
So my questions are: 1) is there a way to generate a plane with a constant slope in ArcMap 10 (without using python if possible, as I have no experience with it) 2) otherwise, have I made a mistake in raster calculator with v9?
Version: ArcMap 10.1 Basic 3D analyst, Spatial analyst and more
You could convert the Raster DEM with the missing areas with NoData over to points (Raster to Points) and create a TIN from that using the Gridcode as the height. Then export the TIN to Raster and use it to replace the NoData areas only.
Thanks for the reply. Unless I have misunderstood, your method would result in an interpolated slope that fills the gap. However, what I would like to fill the gap with a surface of specific parameters
The dataset is a section of a cliff, with a relatively straight section of road cut into it. The road surface is the area with no data. I would like to add in the road surface as a flat plane, with a slight slope. Therefore the resulting elevation will have a step at this point, rather than an interpolated slope.
You could take the road and clip it for that area. I would then make it 3D feature class and edit the vertices to the height you desire. Then buffer it. Make sure the buffer is 3d and has the slope you desire. Use it and the points to create a TIN and then export to raster to fill in the NoData areas.