2-D shape (n)~ A shape that has four selection handles that you can use to resize the shape proportionally.

A 2-D shape (n) is a two-dimensional shape that exists in a flat plane and is defined by its height and width. These shapes are often used in graphic design, digital drawing, and other visual applications. In the context of 2-D shapes, the term refers specifically to shapes that have four selection handles which allow the user to resize the shape proportionally.

Explanation of Key Components:

1. 2-D Shape:

• A 2-D shape exists in two dimensions—height and width—meaning it has no depth. Common examples include shapes like circles, squares, rectangles, triangles, and so on.

2. Selection Handles:

• Selection handles are small squares or dots that appear around an object when it is selected. These handles are used to manipulate or resize the object.
  • A shape with four selection handles will typically have a handle at each corner of the shape.

3. Resizing Proportionally:

• Resizing proportionally means that when the user adjusts the shape, both the height and width change at the same ratio or proportion, ensuring that the shape maintains its original proportions (i.e., it doesn’t become distorted or stretched out of shape).
• This is typically achieved by clicking and dragging one of the corner handles. By doing so, the aspect ratio (the ratio of width to height) stays the same, whether the shape is enlarged or reduced.

4. How It Works:

• When a user clicks on a 2-D shape (e.g., a rectangle) in a software application (like graphic design software), four selection handles will appear: one at each corner of the shape.
  • If the user clicks and drags one of these corner handles, the shape's width and height will change proportionally.
  • For example, if you have a square and you drag a corner handle, it will remain a square (same height and width) even if you make it larger or smaller.

5. Use Cases of 2-D Shapes with Proportional Resizing:

• In software like Microsoft PowerPoint, Adobe Illustrator, or other design tools, 2-D shapes are commonly used in creating diagrams, designs, presentations, and more.
• Resizing shapes proportionally is important to keep their intended look and avoid distortion. For example, when resizing a circle, you want to ensure that it stays a circle (not an oval), so the resizing must happen proportionally on both axes (height and width).

6. Examples of 2-D Shapes:

• Rectangle: A shape with four sides, where opposite sides are equal in length.
• Circle: A shape with all points equidistant from the center, so its resizing must maintain equal width and height to remain a circle.
• Triangle: A three-sided polygon, where proportional resizing will keep the triangle’s internal angle relationships intact.

Conclusion:

A 2-D shape is a shape that exists in a flat, two-dimensional space with height and width. It has four selection handles at each corner, and these handles are used to resize the shape while maintaining its proportions. This type of resizing ensures that the aspect ratio (the relationship between height and width) of the shape remains unchanged, preventing distortion. This functionality is essential for maintaining the integrity of shapes in graphic design and visual applications.

The above information is provided as general reference material and should not be taken as specific advice. For accurate analysis and professional guidance tailored to your specific situation, please consult an expert in the relevant field.