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A display file is a data structure used in computer graphics to represent the graphical elements that need to be displayed on a screen. Its structure typically includes information about various graphical entities such as points, lines, polygons, and their attributes. Here's a simplified description of the structure of a display file:
1**. Header Information:**
- Contains general information about the display file, such as the resolution of the screen, color depth, and other display-specific parameters.
2**. Primitive Information:**
- Represents the basic graphical entities to be displayed, including points, lines, and polygons.
- Each primitive entry includes details like coordinates, color, and other attributes.
3**. Attributes:**
- Specifies attributes for the primitives, such as color, line style, fill pattern, transparency, etc.
- These attributes determine the visual appearance of the primitives.
4.Transformation Matrices:
- Matrices used for transformations like translation, rotation, and scaling.
- Allow the modification of the position and size of graphical elements.
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Clipping Information:
- Describes the region of the screen that is currently visible or the clipping window.
- Helps in removing parts of primitives that are outside the visible area.
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Coordinate System Information:
- Defines the coordinate system used within the display file.
- Specifies the mapping of logical coordinates to physical screen coordinates.
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Hierarchy Information (Optional):
- If the display file represents a complex scene with a hierarchical structure, information about parent-child relationships and transformations might be included.
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Animation Information (Optional):
- If the display file is part of an animation, it may include details about the sequence and timing of frames.
Overall, the display file serves as a structured representation of the graphical elements, their attributes, and the necessary information for rendering and displaying images on a computer screen. The specific details of a display file's structure may vary depending on the graphics system and its requirements.
URMILA BIRAJDAR
Wiki User
∙ 11y agoA display file is a set of uncorrelated data, such as a histogram array or bivariate array. The arrays are filled event by event from a list data in order to create a display. The saved arrays usually take up far less disk space, but can the data can no longer be gated.
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