![]() ![]() The second area moment of inertia of the region about the centroid of the region (red box).The MASSPROP function provides the following info, highlighted in Figure 5: using the MASSPROP button, found in the TOOLS –> INQUIRY dropdown (Figure 3).Typing “MASSPROP” (no quotation marks) in the command line.Next we find the second area moment of inertia about the centroid of the region using the MASSPROP function. combining simple discrete regions into a more complex region using Boolean operations.Extracting design information, such as areas and centroids, using MASSPROP.NOTE: In the context of AutoCAD, a REGION is an enclosed 2D area created using polylines, lines or curves that has physical properties such as centroidal location and centre of mass. using the REGION button, found in the DRAW toolbar (Figure 2).Typing “REGION” (no quotation marks) in the command line. ![]() The REGION command can be activated by either: Activate the REGION command and define the region by clicking the individual lines / curves which make up the section and complete the command (often right click, depending on how you have set up your controls). ![]() Next we must define a region in AutoCAD using the REGION command. Figure 2: Rectangle, 155mm x 207mm Step 2 In this case, a simple rectangle 155mm wide by 207mm tall. Step 1įirst, draw the enclosed boundary of the section out in AutoCAD. I will explain the process with the aid of a very simple example.
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