Technical Drawing with Engineering Graphics, 16th Edition

Chapter Nineteen

Landform Drawings

Objectives

After studying the material in this chapter, you should be able to:

1. Read and draw a plat, topographic contour map, street contour map, and highway plan and profile.

2. Read the elevation of a tract of land using contour lines.

3. Identify the scale and compass orientation of a topographic map.

4. Read and notate property boundaries on a land survey map.

5. Create a profile map from contour lines.

3D Geologic Terrain Model (Courtesy of Howard Architectural Models, Inc.)

Overview

Drawings and maps show natural and human-made features on the Earth’s surface. Topographic drawings use orthographic projection, ...