CAD controls for perspective views Modern CAD systems typically allow users to set viewing distance, focal point (target), axis convergence behavior, and resolution parameters (such as arc/curve tessellation) when generating perspective representations.

Difficulty: Easy

Correct Answer: Correct

Explanation:


Introduction / Context:
Perspective visualization in CAD bridges technical accuracy and visual comprehension. Camera-like controls let designers tune the “look” of the view for documentation, presentations, or analysis while maintaining geometric fidelity to the model.



Given Data / Assumptions:

  • We are working with a mainstream CAD system.
  • Perspective mode is enabled instead of orthographic.
  • Users can modify camera and display parameters.


Concept / Approach:
Core parameters include: viewing distance (or focal length/field-of-view), which controls perspective strength; focal point (target) defining what the camera looks at; axis convergence toggles that determine whether projection is perspective (convergent) or orthographic (parallel); and curve/arc resolution that controls display tessellation for smoothness in viewports and exports.



Step-by-Step Solution:

Switch display to perspective mode to enable convergent projection.Set camera position and focal point to frame the object.Adjust field-of-view or viewing distance to control visual distortion/zoom.Increase arc/curve tessellation to improve the appearance of circles and splines.


Verification / Alternative check:
Orbit the camera and check that parallel edges converge to vanishing points; export a high-resolution image to confirm arc smoothness and desired depth impression.



Why Other Options Are Wrong:
These controls are not limited to wireframe or plug-in renderers; they are native to most CAD camera/view settings. Orthographic projections explicitly lack convergence controls by definition.



Common Pitfalls:
Overly wide fields-of-view causing unrealistic distortion, misplacing the focal target leading to awkward framing, and using too coarse tessellation that makes arcs appear segmented.



Final Answer:
Correct

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