ORD : THIN TERRAIN MESH

RE: ORD : THIN TERRAIN MESH

Flounder_Pounder — Thu, 10 Mar 2022 22:12:20 GMT

OK, I got it to create the MX Genio .txt file (needed to have the terrain features applied...)

So now whatever filter setting to Filter "thinning" has no effect on it? Title\Tin with any number etc.

Also, I tried a pure ASCII XYZ file, the "Filter" too thin is not available?

My guess is you can only thin Lidar or more complex dataset?https://communities.bentley.com/products/road___site_design/w/road_and_site_design__wiki/55420/create-terrain-from-point-cloud-tin-and-tile-filters

PS Seems like A LOT of old SS2 InRoads Surface Tools are no longer available ???

Example: I tried using ORD for doing Dredging Volumes (in sections) and you have to select the tool each time and fill it out? And no "report" just save text to the CAD file?

RE: ORD : THIN TERRAIN MESH

Flounder_Pounder — Thu, 10 Mar 2022 20:24:06 GMT

Finally got around to trying this method "MX Genio export then Import" but errors out on Export

"Error Exporting file. Please check model and string names."

Any help would be appreciated!

PS I have tried leaving the 'Export Options" empty etc without any luck and can not find any help in the help doc's on what they do and what I should or shouldn't do with them and I'm not familiar with 'MX Genio' format.

RE: ORD : THIN TERRAIN MESH

vincent — Tue, 18 Jan 2022 07:24:11 GMT

You are correct, the contour thinning settings applies on linestrings and not Bsplines,

But these setting does enable control on density of points taken into account, which is the desired result.

You may generate Terrain, check result, change settings, then retriangulate without having to relaunch ORD.

HTH

The test file is attached.communities.bentley.com/.../B_2D00_spline.dgn

RE: ORD : THIN TERRAIN MESH

Flounder_Pounder — Mon, 17 Jan 2022 17:18:36 GMT

Thanks for the extra info! This is the type of data I'm dealing with

RE: ORD : THIN TERRAIN MESH

JeremieDL — Mon, 17 Jan 2022 12:58:44 GMT

If you want to simplify a terrain mesh, you first need to export it to MX Genio (in .txt)

Then import it back into Openroads, this way you will be able to import it back into Openroads and use the filtering ability that Vincent have talk. I never did this with a 800mb terrain but have done this before and it works.

RE: ORD : THIN TERRAIN MESH

Erdem Atilir — Mon, 17 Jan 2022 09:55:27 GMT

Hello Mr. Vincent

As far as I understand these settings are useful for point dilution but have no effect on bspline lines. When I experimented with different values, I saw that it had no effect. Our existing maps are prepared by our sub-contractors with stereo photogrammetric evaluation. Drawings are created in dgn format with Microstation V8i and the Leica Photogrametric Suite. All contour entities in drawings are generated as bsplines. In our current workflow, we first convert bspline objects to linestrings within the point distance range we want. In this case, as far as we understand, ORD does not have a setting when evaluating bspline objects to create terrain objects.

Best regards,

Erdem

RE: ORD : THIN TERRAIN MESH

vincent — Mon, 17 Jan 2022 08:12:40 GMT

If Using Bspline contours as elevation source, then proper settings are in the configuration file:

RE: ORD : THIN TERRAIN MESH

Erdem Atilir — Sat, 15 Jan 2022 08:39:38 GMT

Hello Martin,

I don't know of a practical way inside ORD to simplify existing mesh but there are things you can do outside. In some existing maps, for example, contours can be drawn as bsplines. Converting them to linestring linetype with custom sensitivity significantly reduces the terrain size in ORD. Actually, I don't understand why bspline contours are solved with so many triangles in ORD. If at least the minimum distance between the mesh points can be determined, we can create a terrain surface that works much easier and faster. In your case there may be a similar unnecessary triangle formation. Can you share a sample screenshot of your Terrain mesh?

Regards

Erdem

RE: ORD : THIN TERRAIN MESH

weiss alexander — Fri, 14 Jan 2022 03:32:14 GMT

Did you miss the OpenRail webinar? It is on demand at https://pages.info.bentley.com/video-details/?video=CO_VID_ORBIM_0318&videoDBID=a9cba4bc-d461-45ef-94d1-0072055fee9a Drift Boss Our next Tech Talk is Wednesday March 21: Tech Talk: How Configuration Management Supports Positive Train Control. A key element of positive train control is managing information related to the rail network and trains. This Tech Talk discusses how AssetWise helps enable PTC deployment and provides best practice configuration management and information integrity in a changing environment.

RE: ORD : THIN TERRAIN MESH

vincent — Tue, 11 Jan 2022 10:34:12 GMT

Hello,

Sorry for delay - the option is only available when you use Import formats dealing with points, such as

Create TM from file, XYZ format, LAS format
Create TM from Point CLouds

Details about thinning can be fouind in OpenRoads help file.

So you would need to export your surface in one of these formats, to have ability to filter importing back the points.

RE: ORD : THIN TERRAIN MESH

Flounder_Pounder — Fri, 07 Jan 2022 17:58:50 GMT

Hello, any follow-up on why I don't see the filters you show?

RE: ORD : THIN TERRAIN MESH

Flounder_Pounder — Sat, 18 Dec 2021 04:27:05 GMT

Ping...

RE: ORD : THIN TERRAIN MESH

Flounder_Pounder — Thu, 16 Dec 2021 17:32:22 GMT

I can not find anyway to import the brings up a thinning dialog ability shown in the screen shot above? Tied everything in Terrain Ribbon and looked and tried a few in the genetic File>Import without success? Is there a format of surface\terrain I need to use? My goal is to produce a smaller .DTM in the end.

Running ORD 10.10.02.03

Nothing in Online help about this feature I could find

RE: ORD : THIN TERRAIN MESH

vincent — Thu, 16 Dec 2021 15:42:51 GMT

The Thinning tools are available in import tools, so if you already have a Terrain you want to thing out, export it and reimport it, doing you will have access to thinning options.

RE: ORD : THIN TERRAIN MESH

Flounder_Pounder — Wed, 15 Dec 2021 23:57:17 GMT

I don't see these options in my 10.10 version? Really would like to thin a terrain (dense bathymetry)

RE: ORD : THIN TERRAIN MESH

Martin Koekemoer — Tue, 09 Oct 2018 08:31:38 GMT

Ok I manged to find the solution while working on another project. When importing the files whatever format you can use the ORD Terrain Filter (see image below) which has the old tools from Geopak. Awesomeness.

The funny thing I could not find anything on the Communities page about this. Maybe a video on how to do this would be another great feature.

RE: ORD : THIN TERRAIN MESH

Marcus Blake — Mon, 10 Sep 2018 12:51:46 GMT

What is the source of the mesh?