In Adobe Illustrator, you can change the appearance of an arc as you are drawing it using the Arc Tool.
Adjusting an Arc While Drawing
When you use the Arc Tool to create an arc, its shape is dynamic and can be modified interactively as you drag your mouse.
As the reference states:
"You can see by doing that i'm dragging out an arc. And this will change depending on where i drag my mouse."
This means the curvature, direction, and size of the arc are determined by how you move your mouse cursor during the drawing process. Different dragging directions and distances will produce different arc shapes.
The reference also notes that there are ways of "adjusting. This on the fly." While the specific methods beyond mouse dragging aren't detailed in the provided snippet, Illustrator offers keyboard modifiers (like Shift for constraint, Alt/Option for different anchor behavior) that allow for further control over the arc's orientation and shape during its creation.
Therefore, the primary way to "change" the arc during the drawing phase is by manipulating the mouse direction and distance, potentially combined with keyboard modifiers for fine-tuning. The resulting shape is determined by these actions as you are creating the path.
For instance, dragging horizontally can create flatter arcs, while dragging vertically or diagonally can produce more pronounced curves. The direction you drag away from the starting point also influences whether the arc curves upwards, downwards, left, or right.
