defining bounding box anchor location

Question

question

William Proctor asked May 23 2016 at 2:47 PM Phil BoBo edited May 23 2016 at 10:10 PM

defining bounding box anchor location

I understand that there is a specific location within a 3D object's bounding box that become the anchor location (for determining the object's location). I believe that is it the lower left corner by default. Is there a way to change the anchor location (like put it in the upper middle location of the box)?

Software Version:

FlexSim 16.0.1

3d shape factors

______

Cookie preferences

Your privacy is important to us and so is an optimal experience. To help us customize information and build applications, we collect data about your use of this site.

May we collect and use your data?

Learn more about the Third Party Services we use and our Privacy Statement.

Strictly necessary – required for our site to work and to provide services to you

These cookies allow us to record your preferences or login information, respond to your requests or fulfill items in your shopping cart.

YES

Improve your experience – allows us to show you what is relevant to you

These cookies enable us to provide enhanced functionality and personalization. They may be set by us or by third party providers whose services we use to deliver information and experiences tailored to you. If you do not allow these cookies, some or all of these services may not be available for you.

YES

NO

Customize your advertising – permits us to offer targeted advertising to you

These cookies collect data about you based on your activities and interests in order to show you relevant ads and to track effectiveness. By collecting this data, the ads you see will be more tailored to your interests. If you do not allow these cookies, you will experience less targeted advertising.

YES

NO

Are you sure you want a less customized experience?

We can access your data only if you select "yes" for the categories on the previous screen. This lets us tailor our marketing so that it's more relevant for you. You can change your settings at any time by visiting our privacy statement

Your experience. Your choice.

We care about your privacy. The data we collect helps us understand how you use our products, what information you might be interested in, and what we can improve to make your engagement with Autodesk more rewarding.

May we collect and use your data to tailor your experience?

Explore the benefits of a customized experience by managing your privacy settings for this site or visit our Privacy Statement to learn more about your options.

Answer 1 · 2016-05-23T16:06:02Z

Phil BoBo answered May 23 2016 at 4:06 PM Phil BoBo edited May 23 2016 at 10:10 PM

An object's location is stored in the tree by the corner of their unrotated bounding box shown here:

When you select the "Direct Spatials" mode for displaying the object's location, Quick Properties shows you the values that are stored in the tree for the location of the object. If you rotate an object, you'll notice that the object's location doesn't change (only its rotation changes):

The location edit mode in Quick Properties enables you to specify a location based on a certain reference point. For example, if you specify the upper planar midpoint as the reference point, then the location will be shown as (3.69, -1.5, 2) for the object above, instead of the (0, 0, 0) that is its actual location that is stored in the tree. You can then edit the location based on that reference point instead of the direct spatial location.

The object's location in the tree will still be stored as the "Direct Spatials" values, but this option enables you to enter the location based on a certain reference point.

You can also set the location dynamically based on these reference points using the Set Location pick option:

Here, you can specify a reference point similar to the Quick Properties window:

The command setloc() also takes 3 optional parameters. If you do not use these parameters, it sets the location directly, based on the "Direct Spatials" mode. If you use these three optional parameters, it sets the location based on a reference point within the yellow bounding box (as specified by 3 factor values between 0 and 1).

You can also use the command setcenter() to set an object's location based on its center point. This would be the same as setloc with 0.5 for each optional parameter:

setcenter(object, xloc, yloc, zloc);
setloc(object, xloc, yloc, zloc, 0.5, 0.5, 0.5);

direct-spatials.png (281.1 KiB)

direct-spatials2.png (280.8 KiB)

planar-mid-point.png (396.8 KiB)

set-location.png (93.5 KiB)

set-location2.png (219.2 KiB)

· 7

Phil BoBo ♦♦ commented · May 23 2016 at 8:48 PM

Attached is a model that uses a BasicTE to customize the offset location so that it drives the front of the yellow box to the location specified in the Travel To Loc task.

You could use this BasicTE as your Combine instead of the TaskExecuter object so that it rotates as normal, but travels to the edge of the yellow box.

1 ·

combine-basic-te.fsm (470.2 KiB)

William Proctor Phil BoBo ♦♦ commented · May 23 2016 at 8:54 PM

Thanks Phil. I'll take a look.

0 ·

Phil BoBo ♦♦ William Proctor commented · May 23 2016 at 9:29 PM

This forum works a little different than our other user forum in that each "Answer" is meant to be an actual answer to the question, not a reply to a previous post. Post-reply conversations are meant to be done in the comments of each answer. This makes answer finding easier for people who are skimming. So I've converted your answers into comments.

1 ·

William Proctor commented · May 23 2016 at 6:15 PM

Thanks for the clarification on this works. I can see how to change the value. It impacts the location displayed on the screen, but it doesn't seem to have an affect on the dispatch command that I am using "inserttask(ts,TASKTYPE_TRAVELTOLOC,NULL,NULL,x,y,z,0).

I'm trying to end up with the front center of the Task Executor aligned with the X,Y,Z coordinate when I get to the location but it is still using another location within the object for this task (center?) (I've moved the reference point to several locations to see the affect)

What point within the object boundary is used when doing a TRAVELTOLOC command?

0 ·

Phil BoBo ♦♦ William Proctor commented · May 23 2016 at 6:48 PM

The point used in a Travel To Loc task depends on the TaskExecuter. An operator travels differently than an ASRS or a Crane, etc. Can you post a small example that shows what you are actually trying to do?

1 ·

William Proctor commented · May 23 2016 at 7:05 PM

I can use an operator instead of a TaskExecutor if that makes things easier. Essentially I'm creating a piece of equipment that can be flexibly routed anywhere on the field without a path network..

0 ·

William Proctor commented · May 23 2016 at 7:19 PM

OK. That does seem to work. Will my vehicle rotation location center then be at the same location? If so, is there a way to move it between the rear wheels? Thanks.

0 ·

question