Method Three: Horizontal Sections (Leaving Cert DCG): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What is the key advantage of the horizontal sections method?
What is the key advantage of the horizontal sections method?
Converts 3D problem into 2D intersections
Which shapes work best with the horizontal sections method?
Which shapes work best with the horizontal sections method?
Spheres, cones, and cylinders
What cross-sections do these solids produce when cut horizontally?
What cross-sections do these solids produce when cut horizontally?
Circular sections
How many sections on each side typically provide sufficient accuracy?
How many sections on each side typically provide sufficient accuracy?
4-6 sections
How should horizontal cutting planes be positioned?
How should horizontal cutting planes be positioned?
At equal intervals
In which view are intersection points found first?
In which view are intersection points found first?
Plan view
What happens to intersection points in Step 4?
What happens to intersection points in Step 4?
Projected vertically to elevation
What does accuracy of the final curve depend on?
What does accuracy of the final curve depend on?
Section spacing and plotting accuracy
What effect does using more sections have on the final curve?
What effect does using more sections have on the final curve?
Smoother and more accurate curve
Why does this method not work well with irregular shapes?
Why does this method not work well with irregular shapes?
They don't create circular sections