|The Drawing file (DWG) of CAD converted into shapefile in ArcGIS|
After receiving the drawing file (DWG), the first step was to convert it to a shapefile so that I can view in ArcGIS. For this particular project, I wasn't concerned about the metadata, the accuracy of the DWG file or the coordinate system. In ArcMap (at that time v. 9.3), I think I have used the 'Add Data' to import the file. Instantly, the file is added as multiple layers (as polylines, points and others). Since it lacks projection, ArcMap issues a warning that the DWG file lacks coordinate system. Since around 5 layers have been derived from the DWG, I decided to export all these layers to shapefiles. I right clicked on layer (i.e. NarNarGoonSurface_2012_dwg_Polyline), go to 'Export Data' and save the shapefile in my directory.
With some play with symbology, the (above) contour map is created.
(For more instructions, follow link: http://gpshort.uga.edu/instructions/gis/Convert%20an%20AutoCAD%20file%20to%20a%20Shapefile%20and%20Georeferencing.pdf)
|Triangulated Irregular Network (TIN) in ArcMap|
|3D Terrain of the Housing Project Area|
That's wrap up the story of transforming from 2D dataset to 3D Terrain Surface.
(For more information, refer to this link,http://crl.ap.buffalo.edu/digitalworkshop/zcorp/pdfs/Creating%203D%20Models%20Using%20ArcGIS.pdf)