Part Modeling > Part Modeling > Modifying the Part > Editing Dimensions > To Edit Dimension Values, Properties, or Text
To Edit Dimension Values, Properties, or Text
This procedure applies to most applications in Creo.
* 
If you use the Menu Manager in your application, select a procedure under the Using the Menu Manager to Edit section of the Help.
1. To select the feature that contains the dimension to edit, perform one of the following actions:
In the graphics window:
1. Select an entity that belongs to the feature you want to edit. A shortcut menu opens. If the feature contains dimensions that can be edited, the Edit Dimensions command appears on the menu.
2. Click Edit Dimensions to edit the feature dimensions.
In the graphics window:
1. Set the selection filter to Feature.
2. Double-click a feature to select and edit it. All feature dimensions appear. To select more than one feature for editing, hold down the CTRL key and double-click.
* 
When you hold down the CTRL key and double-click an item, this selects it or removes it from the selection and activates the Edit mode. You can change dimension values and properties for the selected items.
When you edit more than one feature, only feature-level dimensions appear. To edit sketch level dimensions, select the sketch. Feature dimensions are also available in this case.
In the Model Tree, right-click one or more features and choose Edit Dimensions to show the feature dimensions in the graphics window.
* 
When you select more than one feature to edit, only feature-level dimensions are available.
In Assembly mode, click Settings > Tree Filters. The Model Tree Items dialog box opens. Under Display, click the Features check box to display features in the Model Tree.
You can select Feature from the selection filter.
If you select a copied dependent feature containing a section, then Copied Feature > Make Section Independent appears in the shortcut menu. You must make the section independent before you can edit the section.
2. To make a dimension available for editing, double-click it. The Dimension tab also opens, where you can edit the dimension and its properties.
3. Edit any of the following values or properties:
To change the value of the selected dimensions, perform one of the following actions:
In the graphics window, type a value in the dimension value box.
On the Dimension tab, in the Value group, next to Nominal Value, type a value.
* 
When a feature tool (like Datum Plane or Extrude) is open, and you enter a dimension that is calculated by an expression, the dimension is automatically rounded off to the number of decimal places that is defined by the default_dec_places configuration option.
To prevent the dimension value from being rounded off, you can enter an exact value by typing the dimension as =(expression).
For example, if you have defined the number of decimal places as two using the default_dec_places configuration option, and you type 1/3 for the dimension value, then the calculated value will be rounded off to 0.33. If you type =(1/3) for the dimension value, then the calculated value will be 0.3333333333333, with a maximum precision of 14 digits.
To set the format of the selected dimension as a decimal or fraction:
To set the default format for dimensions by setting a configuration option:
1. Click File > Options to open a dialog box, and then click Configuration Editor.
2. Next to Show, select All Options. A list of all the configuration options appears.
3. Next to create_fraction_dim, select the dimension display:
yes—All the dimensions created after setting the option will be displayed as fractions.
no—All the dimensions created after setting the option will be displayed as decimals.
4. Click OK.
To set the format of the selected dimension:
1. On the Dimension tab, in the Dimension Format group, click Dimension Format. The Dimension Format format dialog box opens.
2. Under Dimensions, select an option:
Decimal—Displays the selected dimension as a decimal.
Fractional—Displays the selected dimension as a fraction.
This setting overrides the default format defined in the configuration option.
When the dimension format is Decimal, the default number of decimal places for dimensions is two. To increase the number of decimal places that are displayed, in the Precision group, type a value next to . You can also change the number of decimal places using the configuration option default_dec_places.
When the dimension format is Fractional, you can set the precision of the denominator. In the Precision group, select a value next to . The denominator that you set overrides any value set with the configuration option dim_fraction_denominator.
To toggle the display of arrowheads between inside and outside the dimension extension lines:
1. In the Display group, click Display. The Display dialog box opens.
2. Under Arrow, next to Arrow Direction, click Flip.
To add text to the dimension value, such as diameter, ref, type, and special symbols:
1. In the Dimension Text group, click Dimension Text. The Dimension Text dialog box opens.
2. To add text, under Dimension Text, type text. Type@D at the point in your text where you want the dimension to display.
3. To add a prefix or suffix:
To add a prefix before the dimension value, next to , type text, or click a symbol under Symbols.
To add a suffix after the dimension value, next to , type text, or click a symbol under Symbols.
To edit the tolerance:
1. To enter Tolerance mode, perform any of the following actions:
Click File > Options > Entity Display, and next to Dimension Tolerances, select one of the options to show tolerances.
Set the tol_display configuration option to yes.
2. Select and edit the tolerance or the tolerances you want to change:
If you are changing a general tolerance:
1. Select the tolerance. A value box appears in the message area.
2. Under Enter tolerance value, type a new value and click . The new tolerance value is displayed.
If you are changing one dimension tolerance value for a feature, perform any of the following actions:
Select the dimension tolerance (both the upper limit and lower limit are selected). On the Dimension tab, type new values in the Upper tolerance and the Lower tolerance boxes.
Select the dimension tolerance, right-click, and choose Value. A value box appears. Type or select a value.
Double-click the dimension tolerance. A value box appears. Under Enter tolerance value, type or select a value.
4. When you finish editing the dimensions, click in the graphics window. You can now select another feature to edit. To exit editing mode, click in the graphics window again.
* 
If the dimension is dependent, the command Make Dimension Independent appears on the shortcut menu. Click Make Dimension Independent to make the dimension independent.