Often Detail sketch is shown in isometrics to understand the graphical/technical details of the components.Detail sketches are stored in a Microstation cell library.
When the drawings are imported into the cell library the units and possible UOR (unit of resolution) will be set from the imported model. When placed as detail sketch the size of the sketches in the isometric depends on it.
For example: Import the drawing into the cell libraries and measure the sketches as 50 mm square. When used as a detail sketch they end up as 0.5 mm square. This is caused by the cell UOR being 10 subunits per master unit where 1000 was expected. In this case user needs to set the scale factor to 100.
The scale factor must be changed in the style.xml file from its corresponding project folder location:
<DetailSketch><PlacementType>2</PlacementType><BorderSize>2</BorderSize><NamingType>0</NamingType><Scale>100</Scale><LevelName>Detail Sketches</LevelName></DetailSketch>
Note: Recommended scale set is 100, the default is 1.
To get this implemented, add a field “DETAIL” in corresponding piping table. The detail field must be added in this table.
http://communities.bentley.com/products/plant/design___engineering/w/plant_design_and_engineering__wiki/13393.settingsattributes-openplant-isometrics-manager
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