What Is the Polyline Tool in CorelDRAW?

The Polyline tool in CorelDRAW is a versatile vector drawing instrument that allows users to create continuous straight lines and freehand curves within a single, unbroken path. This article explains the primary functions of the Polyline tool, how to use it effectively, its distinct advantages over other drawing tools, and its most common design applications.

Understanding the Polyline Tool

Located in the Curve tools flyout in the CorelDRAW toolbox, the Polyline tool bridges the gap between structured geometric drafting and organic sketching. Unlike tools that restrict the user to either strictly straight segments or strictly curved lines, the Polyline tool allows a designer to alternate between both modes on the fly without changing active tools or terminating the line.

How to Use the Polyline Tool

Operating the Polyline tool is straightforward:

  1. Draw Straight Segments: Click on the drawing canvas to set the starting node, move the cursor to the desired position, and click again. Repeat this process to create consecutive straight lines joined at sharp corner nodes.
  2. Draw Freehand Curves: Click and drag the cursor across the canvas. The tool records the cursor's movement as an organic, smooth curve with automatically placed nodes.
  3. Combine Line Types: You can click to make straight lines, hold and drag the mouse button to sketch a curve, release it, and immediately click again to resume drawing straight segments in the same path.
  4. Close or Complete the Path: Double-click to finish an open path, or click directly over the starting node to close the shape, enabling color fills.

Key Features

  • Seamless Mode Switching: Transition instantly from rigid mechanical lines to fluid curves without interrupting the drawing workflow.
  • Full Node Editing: Paths created with the Polyline tool consist of standard vector nodes that can be manipulated later using the Shape tool (F10) to adjust curve tangents, node types, and positioning.
  • Auto-Close Support: CorelDRAW offers an option on the property bar to automatically close open curves created with the Polyline tool.

Polyline Tool vs. Other Curve Tools

CorelDRAW includes several vector creation tools, each tailored to specific drafting requirements:

  • Freehand Tool: Ideal for quick sketching, but drawing straight segments requires holding modifier keys, making it less fluid for mixed-edge shapes.
  • Pen and Bézier Tools: Designed for precise control handle placement and mathematical curves. They require more technical input during the drawing process compared to the intuitive drag-to-curve mechanic of the Polyline tool.
  • Polyline Tool: Prioritizes speed and flexibility, making it faster than the Pen tool for rough tracing and more precise than the Freehand tool for geometric shapes.

Common Use Cases

The Polyline tool is primarily used for:

  • Manual Tracing: Quickly outlining bitmap images that contain a combination of flat edges and rounded contours.
  • Floor Plans and Schematics: Creating continuous perimeter boundaries and structural layouts.
  • Rapid Prototyping: Sketching vector concepts where speed is preferred over immediate mathematical precision.