



Drawing Compare is available exclusively for AutoCAD MEP 2009 customers participating in the Autodesk Subscription program. Download this module now to get the Drawing Compare feature. The Drawing Compare feature enhances collaboration by using color-coded displays to show items on a drawing that have been changed, added, or deleted by other members of the design team. Changes to items such as styles, fire ratings, or other non-graphical properties are also tracked. Combined with redlining features, such as revision clouds, the Drawing Compare features help make communication across the design team clearer than ever.
The comparison process is like how drawings were compared when they were received on tracing paper or Mylar sheets and then overlaid on the original project drawings using a light table. Drawing Compare displays informational data about the objects in your drawing as well as displaying the graphical changes on the drawing screen.
You select the review drawings and compare each to its corresponding project drawing on the Setup tab of the Drawing Compare palette. After the comparison, you view the results on the Review tab of the Drawing Compare palette and in the drawing area.
Drawing Compare identifies objects that have been modified, added, or removed in the review drawings. Based on the status of the objects (modified, new, or missing), colors are assigned, and a list of the changes is generated.

In the following example, a simple floor plan was modified to show what information Drawing Compare displays during a comparison session. The review drawing shows that changes to the project drawing include moving the lower vertical interior wall segment to the left (resulting in a shorter horizontal interior wall segment), adding an exterior door to the right exterior wall segment, and removing a window from the upper exterior wall segment.

When the drawings are compared, color-coded changes are displayed, based on the type of change.
Information about changes is also displayed in the Object Report List on the Review tab.
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Subscription users can download from their subscription website, this plug-in provides Electrical design engineers with a tool for importing lighting configurations made using DIALux; one of Europe’s leading lighting design, calculation and analysis tools. This plug-in exports spatial geometry facilitating model production in DIALux and imports lighting fixture layouts, assigning manufacturer specific information, via exchange file. This facilitates the design and layout of lighting configurations for AutoCAD MEP 2009 subscription users.DIALux Plug-In CommandsThe DIALux plug-in is designed for AutoCAD MEP 2009. As such, it loads and executes with this release only. The plug-in provides two, command line tools:
Exporting Spaces from AutoCAD MEPTo begin exporting spaces from AutoCAD MEP to DIALux, you must first open a drawing containing valid spaces objects (or create these as required). Next, follow the steps outlined below to export spaces to DIALux as rooms.
Importing Rooms into DIALuxThe STF file exported from AutoCAD MEP can contain one or many spaces. When imported into DIALux, DIALux uses the data to create a series of rooms. Each room has the same name as its corresponding space in AutoCAD MEP. The following lists the steps necessary to import this file into DIALux and create rooms.
Using DIALuxA key feature of the DIALux application is its ability to link to manufacturer databases of lighting fixtures. These databases can be downloaded locally as plug-ins or accessed across the internet. Lighting fixtures can also be loaded into a current project through manufacturer specific portals, such as that illustrated in Figure 4.Figure 4 – Manufacturer Specific PortalsLights can be inserted individually into a project, or as groups of lights in lines or arrays. Figure 5 illustrates a typical view of a room in DIALux with the ‘3D Light Distribution Display’ and ‘False Color’ options enabled.Figure 5 – Lighting Layout in DIALuxImporting Lights in AutoCAD MEP 2009Once the lighting analysis has been completed in DIALux and all lights positioned, the project can be exported back to an STF file. To export DIALux data, and import it into AutoCAD MEP:-
Each light defined within the STF file will be inserted as an AutoCAD MEP lighting device. Devices can have view dependant display representations, allowing them to appear differently in plan or model view. The devices used for DIALux lighting fixtures have a simple representation, as illustrated in Figure 8.Each light imported from DIALux has its manufacturers name and model information automatically attached through a standard property set. This information can then be scheduled using AutoCAD MEP tables, or devices added to circuits to aid with load calculations.Figure 8 – Lighting Devices in AutoCAD MEPAppendixThe DIALux application does not need to be installed to prepare an export file from AutoCAD MEP. An export application is available from DIAL Gmbh, Germany. http://www.dialux.com/