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What is the major difference between perspective and parallel projection?

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Asmant

Dear Admant, I am Tuhsar

Parallel projection give a more realistic reorientation of an object.
and Parallel projection equivalent to a perspective projection where the viewer is standing infinitely far away.
There are many types of perspective projection single point, two and etc.

Hi I am Sameer
whatever a human eye see in real world is a perspective view, a point which is at a distance from the viewer is the center of projection. But in parallel projection all sides are shown same from near or far.

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Hi I am Zuber
In parallel projection we specify a direction of projection, we don’t specify the center of projection. It is good for the measurement.

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Hi I am Amiyakant
It is a method of pictorial projection of a object, it is mainly used in architectural drawing purpose.

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Thank you to all.