2009

The model you create in Autodesk Inventor is linked to its underlying sketches
and sketch information. If you change a sketch, the model is automatically
updated.
Sketch Environment
When you create or edit a sketch, you work in the sketch environment. The
sketch environment consists of a sketch and sketch tools to control the sketch
grid, and to draw lines, splines, circles, ellipses, arcs, rectangles, polygons, or
points.
When you open a new part file, the sketch environment is active. The 2D
Sketch button is selected, and the Sketch tools are available, along with a
sketch plane on which to sketch. You can control the initial sketch setup by
using template files or settings on the Sketch tab of the Application Options
dialog box. Click Tools ➤ Application Options ➤ Sketch tab to customize
the settings.
When you create a sketch, a sketch icon is displayed in the browser. When
you create a feature from a sketch, a feature icon is displayed in the browser
with the sketch icon nested under it. When you click a sketch icon in the
browser, the sketch is highlighted in the graphics window.
After you create a model from a sketch, re-enter the sketch environment to
make changes or start a new sketch for a new feature. In an existing part file,
first activate the sketch in the browser. This action activates the tools in the
sketch environment. You can create geometry for part features. The changes
you make to a sketch are reflected in the model.
22 | Chapter 2 Creating Sketches