Page 87 - DCAP109_GRAPHIC_TOOLS

Graphic Tools

Notes Rectangular Marquee Tool

Use this tool to create selections in the form of rectangles or squares. While dragging a new
selection you may also press shift or option to create a perfect square. Also pressing the space
bar, will stop resizing the selection and instead allow you to move the whole selection about the
canvas. Use this technique to reposition and select geometric shapes.

Figure 4.12: Create a Perfect Square

Source: http://artist.tizag.com/screencaptures/photoshop/toolcaptures/marquee/
marqueeperfectsquare.png

4.1.2 Lasso Tools

The Lasso Selection Tools allow you to make selections of irregular shapes. Using the ordinary
lasso tool, simply click and drag a freehand selection with your mouse.
The polygonal lasso tool exists as a secondary tool to the original lasso tool. With the Polygonal
Lasso Tool, click to make various points which will define a selection, and finish your selection
by clicking the starting point. Press shift+L to alternate through the lasso tools until you have
the polygonal lasso tool selected. This tool is great for extracting pieces of photos that have
straight edges or a semi polygonal shape to them

Figure 4.13: Lasso Tool

Source: http://artist.tizag.com/screencaptures/photoshop/toolcaptures/lassotool/
polygonalextraction.png

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