on which plane is the top view made in orthographic projection?
On which plane is the top view made in orthographic projection?
Answer:
In orthographic projection, the top view, also known as the plan view, is made on the horizontal plane (HP). Here’s a detailed overview and explanation:
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Introduction to Orthographic Projection:
- Orthographic projection is a method of representing three-dimensional objects in two dimensions. It involves creating different views of an object, typically the front view, top view (plan view), and side view (elevation view).
- Each view is projected onto a plane perpendicular to the line of sight.
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Three Principal Planes:
- Horizontal Plane (HP): This is the plane onto which the top view (plan view) is projected. It is parallel to the ground and shows the object’s features from above.
- Vertical Plane (VP): The plane where the front view is projected. It shows the height and width of an object.
- Profile Plane (PP): The plane onto which the side view is projected, showing the depth and height of an object.
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Top View (Plan View):
- The top view is obtained by looking directly down onto the object.
- It presents the layout and arrangement of the object from above, showing the width and depth.
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Projection Process:
- In orthographic projection, the top view is created by projecting the features of the object perpendicular to the horizontal plane.
- The observer’s viewpoint is directly above the object, and the projection lines extend downwards onto the horizontal plane.
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Applications:
- This type of projection is widely used in engineering, architecture, and design fields to create precise and detailed technical drawings.
- It helps in visualizing the exact dimensions and layout of the object, which is crucial for manufacturing and construction processes.
Final Answer:
The top view in orthographic projection is made on the horizontal plane (HP). This view provides a comprehensive layout of the object’s features as seen from above, offering a clear depiction of its width and depth.