When editing paths directly, it is often useful to zoom in on the path. Don't forget that you can zoom in on a location by holding down Ctrl and using your mouse wheel to zoom in on a particular area without having to zoom in and then scroll. Also, if you press your mouse wheel in, you can pan around your window.
Making Bézier Curves
Curves are made using the Line tool.
- In the Designer, select the Line tool icon on the toolbar on the right side of your window. When the Line tool is active, a toolbar will appear in the top menubar. There are three different type of line settings: straight-line segments, perpendicular-line segments, and curved-line segments.
- Select the curve-line segment on the menubar. Click on the window to begin drawing your image. Each time you want to make a curve, click on the screen. The curve-line segment will draw a smooth curve between points creating a smooth vector graphic shape.
- The line tool can make lines as well as shapes. To complete the line, simply click a second time on your final location. To make the line into a shape, click on the starting point as your final location.
- Using the Path
The Unionfunction combines two or more paths into one. The resulting shape will cover the area that any of the shapes covered initially. The example shows how the union of a circle, rectangle, and triangle can be "unioned" together to create a basic pump symbol. Creating the symbol using this method took a few seconds, whereas attempting to draw this shape by hand using paths would be quite frustrating.
The Differencefunction can be thought of as using one shape as a "hole-punch" to remove a section of another shape. The example shows how a zigzag shape drawn with the line tool can be used to punch a cutaway out of a basic tank shape. The level indicator is added behind the resulting shape to show how the area where the zigzag shape was is no longer part of the tank shape.
The result of an Intersectionfunction will be the area only where where two shapes overlap. The example shows how the "top" of the tank in the difference example was easily made using two ellipses.
The Divisionfunction divides or cuts one shape up along the outline of another shape. This works the same as an intersection for the first shape selected, and a difference for the second.