STIG AS Level Raster vs Vector

Last updated 6 months ago
4 questions
Vector graphics are digital images created using mathematical formulas and geometric primitives.

Raster images WHICH ARE MADE UP OF PIXELS. Since raster images are pixel based, they are resolution-dependent.

Since vector graphics are not made up of pixels can be scaled without losing quality.
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So what is the negative in using raster graphics?

Drawing Objects

  • Drawing objects are the basic building blocks of a vector graphic.
  • Common drawing objects include lines, curves, shapes (rectangles, ellipses, polygons), and text.
  • Each drawing object is defined by a set of properties that determine its appearance and position.

Properties - like variables

  • Properties are attributes that define the characteristics of a drawing object.
  • Some common properties include:
Coordinates (x, y) for positioning the object
Fill color or pattern
Stroke color, width, and style (solid, dashed, dotted)
Opacity or transparency
Text properties (font, size, alignment)
  • Properties are stored as key-value pairs associated with each drawing object.

Drawing List

  • A drawing list, also known as a display list or a scene graph, is a data structure that stores the sequence of drawing objects and their properties.
  • The drawing list represents the complete vector graphic image.
  • When rendering the vector graphic, the drawing objects are processed in the order they appear in the drawing list.
  • Drawing lists allow for efficient rendering and manipulation of vector graphics.


Example of a simple drawing list in pseudocode:
Copydrawing_list = [ { type: "rectangle", x: 100, y: 100, width: 200, height: 150, fill_color: "blue", stroke_color: "black", stroke_width: 2 }, { type: "ellipse", cx: 300, cy: 200, rx: 70, ry: 100, fill_color: "green", opacity: 0.7 }, { type: "text", x: 200, y: 350, content: "Hello, Vector Graphics!", font: "Arial", font_size: 24, fill_color: "red" } ]
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Logo Design You are tasked with creating a logo for a new company. The logo should be scalable for use on business cards, websites, and large billboards. Which graphic format would you choose, raster or vector? Explain your choice.

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Photographic Image Editing You have a high-resolution photograph that needs to be retouched and color-corrected. Which graphic format would be more suitable for this task, raster or vector? Provide reasons for your selection.

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T-Shirt Design You have been asked to create a design for a t-shirt that will be printed in multiple sizes and colors. Which graphic format would you choose to ensure the best print quality, raster or vector? Provide reasons for your decision.