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Sequence of automatic dimensioning |
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It’s convenient to use the auto-dimensioning command to create dimensions of the frequently used types. This command can be used to set the following dimensions:
•linear dimensions – simple, trimmed, from line to point,
•angular dimensions – simple and trimmed,
•diameter and simple radial dimensions.
After you invoke the command, you must select objects for dimensioning. For example, to set a linear dimension, specify a segment or two points between which you want to set the dimension; to set an angular dimension, specify two non-parallel segments, etc.
Depending on the selected objects, the system will automatically determine the type of the created dimension. Thus, you don’t need to invoke a special command to create dimensions of each type – you just need to select the required objects.
To auto-set the required dimensions, follow these steps.
1.Run the Smart Dimension 
command.
2.Select objects for dimensioning. Details...
Names of selected objects are displayed in the Objects field on the Parameter Panel. Depending on the selected objects, the system will automatically determine the type of the created dimension. The graphic area will display a dimension phantom, and the Parameter Panel will have its settings.
3.Depending on the type of the created dimension, make the following settings:
•for a simple linear dimension:
•use the cursor to determine how a dimension line should be positioned – horizontally, vertically or parallel to the object (except for the dimension between two circles/arcs, whose extension lines are tangent to the circles/arcs, – its dimension line is positioned only parallel to the object),
•If two circles, two arcs, or an arc and a circle are specified as objects for setting a dimension, use the Result Selection button group to choose dimensioning option,
•for angular dimensions:
•use the cursor to determine the angle for dimensioning – acute, obtuse or an angle greater than 180 degrees,
•Using the Leader Lines button group, select the drawing option for dimension leader lines — either from the center 
or not from the center 
,
•for radial and diameter dimensions:
•Using the Dimension button group, determine which dimension needs to be labeled — radial 
or diameter 
,
•Using the Type button group, select the type of dimension line – from center 
or not from center 
(for radial), full 
or broken 
(for diametrical).
4.Edit the dimension text, if required. To start working with the dimension text, press any alphanumeric key. See section on editing the dimension label...
5.Set the number of decimal places in the dimension text. Details...
6.Set a dimension tolerance. Details...
7.Set up additional dimension parameters, if required: dimension text placement option, arrow display parameters, etc. Details...
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To set up additional dimension parameters and to enable/disable dimension tolerances, use the context menu. |
8.Specify the point defining position of the dimension line.
•If you select automatic, fixed or manual placement of the dimension text, the specified point also defines the text position. After this point is specified, dimension creation is automatically completed.
•If you select to place dimension text on the landing, the specified point defines dimensional line location and start of the leader. In this case, you need to specify one more point – a starting point of the landing. After this point is specified, dimension creation is automatically completed.
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When setting dimension, you may need to position dimension text outside the extension lines. To do this for a linear or angular dimension (except dimensions trimmed), fix position of the dimension first by pressing and holding <Shift>. You can also use this method of fixation when you set a diameter dimension. |
9.After a smart dimension of any type is created, the system expects you to specify objects to set the next dimension. Create all the required smart dimensions and complete the command by clicking the Finish 
.
Dimensions created using the Smart Dimension command are no different from the dimensions created using special commands.
See Also
