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DEM & TIN

Overview of ArcGIS. Spatial Analyst extension of ArcGIS. Displaying DEM & TIN. Data Conversion (Vector to Raster)

Assignment Instructions

⚠️ Work Environment

On university computers, work inside the folder:
C:\Users\Public\ or C:\Users\Public\Documents
(This is recommended even on personal computers, as the program may encounter issues when files are located elsewhere.)

📦 Required Software

  • ArcGIS – Required ✅
  • Google Earth – Optional (depending on the task) ✅

Warning

Do not delete completed work until the end of the semester.

Danger

File Naming Rules

❌ Incorrect:

Giorgi Kapanadze.Group/1$ work1

❌ Do not use:

  • Georgian characters (ა, ბ, გ, დ, etc.)
  • Special symbols (other than an underscore _)

✅ Correct:

Giorgi_Kapanadze_Group_4_work_1

Tip

Use only Latin letters, numbers, and underscores (_) for:
Archive names, folder and file names, and table column names.

📘 Step-by-Step Guide

Note

You must be authorized (logged in) on elearning.gtu.ge to download the data.

  • We are using a Topology task as part of this exercise.
  • Rename main folder from Topology to DEM_TIN. Example "Giorgi_Kapanadze_Group_4_work_6_DEM_TIN"
  • Also download archive from here
  • and from here
  • Add inside project additional necessary folders:
  • Inside Raster folder add subfolder DEM

graph LR
  A[FirstName_LastName_GroupNumber_Assignment_Number] --> B{Archive};
  A[FirstName_LastName_GroupNumber_Assignment_Number] --> C{Project};
  A[FirstName_LastName_GroupNumber_Assignment_Number] --> D{lyr};
  A[FirstName_LastName_GroupNumber_Assignment_Number] --> E{shp};
  A[FirstName_LastName_GroupNumber_Assignment_Number] --> F{Geodatabase};
  A[FirstName_LastName_GroupNumber_Assignment_Number] --> G{Style};
  A[FirstName_LastName_GroupNumber_Assignment_Number] --> H{Topology_rules};
  A[FirstName_LastName_GroupNumber_Assignment_Number] --> I{Raster};
  I --> J{DEM};
Connect ArcGIS (from ArcCatalog) to this main folder.

  • Extract isolines to shapefile folder and DEM to raster folder from archive.
  • Isolines must be converted in UTM 38 projection and create DEM from them.
  • Reclassify DEM with 5 or 6 classes.
  • From Isolines create TIN.
  • Generating isolines from DEM File with Contour interval 100 and Base contour 100.
  • Create new dataset in Geodatabase and name it "terrain".
  • Save created isolines in new terrain dataset.
  • Clip isolines, dem, dem_reclass and save in geodatabase terrain dataset and the rasters in dem folder.
  • You can use geodatabase.gdb that donwloaded before, there exist municipality layer.
  • Display isoline values from attribute table field "Contour" as labels.
  • Save created isolines labels in Style folder.
  • Import and visualize the 3D DEM in ArcScene.
  • Properly saving the project file of ArcMap. Name it "DEM_TIN". Save another mxd file for old versions "DEM_TIN_10.0v".
  • Properly saving the project file of ArcScene. Name it "DEM_TIN". Save another sxd file for old versions "DEM_TIN_10.0v".
  • Compress (zip) your folder (named after your first and last name). 💾
  • Use formats like .rar or .zip.

  • Name the archive as:
    FirstName_LastName_GroupNumber_Assignment_Number

  • Send it to: giorgi.kapanadze@gtu.ge

Warning

If you experience any issues with the submission process, contact:
giorgi.kapanadze@gtu.ge
Or use any file transfer services.

Info

📌 If anything is unclear, feel free to ask! 😊
If something here was done incorrectly, I’ll correct it — or you can create a pull request.