Creating and Editing a Paththe Design Editing Mode

Select the Paths tool to create a path. Make sure the Design editing mode is selected in the tool options. The Polygonal option should also be checked.

Click the tool on a distinctive point on the image object you want to outline. Black dots, or "control points", will appear. Find the next distinctive point and click again. A line now connects the two anchor points along the path. This is a segment of the path. Continue setting control points until you have almost outlined the entire object. Set the last control point near the first. Then close the path while holding down the Ctrl key when clicking on the first control point.

Figure 3.64

The Paths tool and options used to create a path and, subsequently, a path with control points (in the image window)

Figure 3.64

The Paths tool and options used to create a path and, subsequently, a path with control points (in the image window)

To avoid setting unneeded control points, take a closer look at the figure you would like to extract. Where are the corner points? Where are the so-called inflection points of the curves (points where the curve changes the direction of its curvature)? In most cases it is sufficient to set control points at the critical points of a contour. Now it is possible to draw spline lines, bend curves from those control points, which can be applied to the curvature of the contour. Furthermore, you can insert additional control points as needed.

As you can see in the example, control points were placed only on spots where there is a bend in the figure or where the outline changes its direction. Even with curves at regular intervals you will need only a few control points. For example, with a circle, you only need three and the outline is developed from the control points.

Figure 3.65

Path control points and linear segments on an object. Handles are drawn out from a control point to bend curve segments (highlighted red).

Digital Cameras For Beginners

Digital Cameras For Beginners

Although we usually tend to think of the digital camera as the best thing since sliced bread, there are both pros and cons with its use. Nothing is available on the market that does not have both a good and a bad side, but the key is to weigh the good against the bad in order to come up with the best of both worlds.

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