Maple Systems Silver HMI504T, Инструкция по установке и эксплуатации

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Chapter 6 - Creating Graphic Objects
Draw ing Ob jects
To display any graphics objects on the OIT screen you must either create them using the drawing tools included
with EasyBuilder, import them from another applications program, or select from the many choices available in the
graphics libraries included with EasyBuilder.
This chapter shows you how to create, use, and save graphics objects in EasyBuilder. You have learned from
previous chapters how graphics objects are placed onto windows. In this chapter, we concentrate on how to create
graphics objects.
Using the Draw ing Tools
Several drawing tools are provided in EasyBuilder to make it easier to create graphics objects. With these tools, you
can create simple geometric shapes such as straight lines, circles, rectangles, and polygonal shapes. You can also
combine several various geometric shapes to form complex shapes that can be stored into one of the graphics
libraries for later retrieval.
The Line Tool
Use the Line tool to create straight lines on a window. Each line that you create has three parameters associated
with it: length, thickness, and color.
4
To create a line
1. From the
Draw
menu, click
Line
or click the
Line
icon in the Draw toolbar. The Attributes
dialog box appears.
2. Click the pull down box from the Color box. The Color dialog box appears.
3. Click on the appropriate color box, then click OK . The color box should reflect what you
have chosen.
4. Click on the line thickness that you want to use.
5. Move the mouse cursor over to the work area of EasyBuilder onto the window that you are
currently editing. The mouse cursor has changed from an arrow to a crosshair cursor.
6. Click to mark the beginning of the line. Move the mouse to the location where the end of the
line should be. Click the mouse cursor again to mark the end of the line. The line object is
formed and displayed on the window screen with small white square blocks around the
boundaries of the line.
7. To continue creating more lines repeat the last step. To move the line just created, click on
the
Select option from the Edit menu or click the Select icon in the Draw toolbar. Move the
line to the preferred location.
8. To change any of the attributes, double-click on the line to display the Line Object’s
Attribute dialog box.
The Rect an gle Tool
The rectangle tool is used to create rectangles or squares. Each rectangle created has four parameters associated
with it: size, thickness, color, and filled.
4
To create a rectangle
1. From the
Draw
menu, click
Rectangle
or click the
Rectangle
icon in the Draw toolbar. The
Attributes dialog box appears.
2. If the interior of the rectangle is to be filled with a color, check the Filled box. Two
additional settings appear.
3. If you want to fill the rectangle with a solid color, then select a color for the Interior box.
Click Pattern Style to display the Pattern Style dialog box. Select the upper left-most
pattern for a solid color. If you want to use a pattern for the filled section of the rectangle,
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Cre ating Graphic Objects 125