Computer Graphics Questions & Answers – Curve Attributes

This section of our 1000+ Computer Graphics multiple choice questions focuses on Curve Attributes.

1. The basic parameter to curved attributes are
a) Type
b) Width
c) Color
d) All of the mentioned
View Answer

Answer: d
Explanation: Type, width and colors are the basic parameters to curved attributes.

2. Raster curves of various widths can be displayed using
a) Horizontal or vertical spans
b) Horizontal spans
c) Vertical spans
d) Horizontal and vertical spans
View Answer

Answer: a
Explanation: Raster curves of various widths can be displayed using Horizontal or vertical spans.

3. If the magnitude of the curve slope is lesser than 1, then
a) We can plot horizontal spans
b) We can plot vertical spans
c) Only b
d) All of the mentioned
View Answer

Answer: c
Explanation: if slope magnitude<1 then we can plot vertical spans Magnitude > 1 then we can plot vertical spans.

4. If the slope magnitude is 1, then circles, ellipse and other curves will appear
a) Thick
b) Thinnest
c) Big
d) Rough
View Answer

Answer: b
Explanation: The magnitude value 1 displays thinnest curves, circles and ellipses.
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5. One of the method for displaying thick curves is
a) Curve slope
b) Curve width
c) Curve cap
d) Only c
View Answer

Answer: a
Explanation: This method fills the area b/w 2 parallel curves, whose separation distance=desired width.

6. The pixel masks for implementing line-type options are also used in the following algorithm to generate dashed and dotted patterns.
a) Raster line algorithm
b) Raster scan algorithm
c) Raster curve algorithm
d) Random curve algorithm
View Answer

Answer: c
Explanation: Raster curve algorithm generates dashed and dotted patterns.
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7. We can generate the dashes in the various octants and the circle path with vertical path using
a) Circles
b) Circle symmetry
c) Circle simmetry
d) Curve slope
View Answer

Answer: b
Explanation: Circle symmetry generates dashes in the various octants, but we must shift the pixel positions to maintain the correct sequence.

8. The function of the pixel mask is
a) To display dashes and inter dash spaces according to the slope
b) To display curved attributes
c) To display the thick curves
d) None of these
View Answer

Answer: a
Explanation: None.
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9. If we want to display constant-length dashes, then we need to do the following.
a) We need to adjust the number of pixels plotted in each dash
b) We need to adjust the number of dots
c) We must use line-type functions
d) Neither a nor c
View Answer

Answer: a
Explanation: Number of pixels plotted in each dash, will displays constant-length dashes.

10. The curves displayed with a rectangular pen will be
a) Thinner
b) Thicker and magnitude slope is 1
c) Thicker and magnitude slope >1
d) B or C
View Answer

Answer: b
Explanation: None.
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Sanfoundry Global Education & Learning Series – Computer Graphics.

To practice all areas of Computer Graphics, here is complete set of 1000+ Multiple Choice Questions and Answers.

If you find a mistake in question / option / answer, kindly take a screenshot and email to [email protected]

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Manish Bhojasia - Founder & CTO at Sanfoundry
Manish Bhojasia, a technology veteran with 20+ years @ Cisco & Wipro, is Founder and CTO at Sanfoundry. He lives in Bangalore, and focuses on development of Linux Kernel, SAN Technologies, Advanced C, Data Structures & Alogrithms. Stay connected with him at LinkedIn.

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