.What will be the position of viewport to maintain same relativeplacement as in window? [5+5=10]

The position of the viewport to maintain the same relative placement as in the window can be achieved by following these steps:

1. Identify the Window: The window is the area in the world coordinate system where the picture is defined.

2. Identify the Viewport: The viewport is the area on the screen where the picture will be displayed.

3. Set the Window and Viewport: To maintain the same relative placement, the window and viewport need to be set to the same position. This means that the lower left corner and the upper right corner of the window should match with the viewport.

4. Transformation: The process of maintaining the same relative placement is called window-to-viewport transformation. This transformation maps a portion of a world window into a viewport.

5. Maintain Aspect Ratio: To avoid distortion, the aspect ratio of the window should be the same as the viewport. The aspect ratio is the ratio of the width to the height.

6. Scaling: If the window and viewport are not the same size, scaling may be necessary. This can be done by multiplying the window coordinates by the ratio of the viewport size to the window size.

7. Translation: After scaling, the lower left corner of the window may not coincide with the lower left corner of the viewport. In this case, translation is necessary. This can be done by subtracting the window coordinates from the viewport coordinates.

By following these steps, the position of the viewport can be set to maintain the same relative placement as in the window.