CAD-GIS Integration: Terrain Modeling and Infrastructure Visualization

CAD–GIS integration workflow
Animated workflow showing terrain surface modeling in AutoCAD Civil 3D and integration with GIS visualization.
 
  CAD–GIS integration  
  Civil 3D terrain surface integrated with GIS-based reservoir visualization.  
 

This project demonstrates the integration of CAD and GIS workflows for terrain modeling and infrastructure visualization. Contour data and topographic information are processed in AutoCAD Civil 3D to generate a triangulated surface model (TIN). The terrain model is then integrated with geospatial data to visualize infrastructure and reservoir environments within a GIS-based context.

Workflow Overview

  1. Import elevation data (DEM) into Civil 3D
  2. Create a terrain surface using a triangulated irregular network (TIN)
  3. Model the dam structure and refine the terrain surface in Civil 3D
  4. Integrate terrain and infrastructure data with geospatial visualization
  5. Generate 3D terrain and reservoir visualizations for engineering analysis

This analysis was performed using DEM data derived from SRTM (Shuttle Radar Topography Mission), © NASA / USGS.

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