To work with Iso reference dimensions

To create an Iso reference dimension

1. On the ribbon, click Isos tabIso Annotations panelReference Dimension.
2. In the drawing area, use object snap to specify an insertion point on a pipe or fitting.
3. Specify the reference object location.

   If you snap to a Plant 3D object skip to step 5. Plant 3D objects like equipment, piping, and steel are recognized.

   
4. Specify the reference object type (for example: a Wall).
   
   A marker is added inside the pipe and the property palette displays.
5. (optional) In the property palette, under Reference Object, enter a Message.
   
Set other values in the property Palette. For example, you can change the centerline to Up-Down or North-South.



Up-Down.



North-South.

To view the reference dimension in an Iso drawing

After you have added an Iso reference dimension to piping in the 3D model you can generate a Quick Iso.

1. In the drawing area, select piping that has an Iso reference dimension attached.
2. On the ribbon, click Isos tabIso CreationQuick Iso.
3. Click Create.

   After some time, an Isometric Creation Complete balloon message displays.

   
4. Click in the balloon to display Isometric Creation results and open the isometric drawing.
   

   Wall type Iso reference dimension with an X and Z Dimension to an East-West centerline.

To create an Iso reference to structure

1. On the ribbon, click Isos tabIso Annotations panelReference Dimension.
2. In the drawing area, use object snap to specify an insertion point on a pipe or fitting.
3. Use object snap to specify structure (for example: nearest).
4. A marker is added inside the pipe and the property palette displays.
   
5. In the property Palette, under Reference Dimensions, show or hide X Y and Z dimensions.
   
   For example, show Z, show Y, and hide X.
6. If the beam centerline orientation is not correct, specify the desired Centerline Direction.