J. Wallace Posted August 18, 2017 Share Posted August 18, 2017 Hello all Just wondering if anyone has come across this, I'm wondering if you can join two seperate site models. The top one was formed with stake objects the bottom from contour lines. When I tried to initially create one model with these two different items (stake and 3d poly) it would not work. I have attached the information I working with. As a workaround I could use the spot elevations with the contours? Thanks Quote Link to comment
Benson Shaw Posted August 18, 2017 Share Posted August 18, 2017 A workaround similar to your spot elevations. Use the Duplicate Along Path command with a stake object (or a 3d locus) and each contour of the lower model.Then Copy/Paste in Place the stakes into the Site Model Source of the one that started with stakes. Choose a duplication interval or number of dupes that gives you a usable Site Model. Not sure why these need to be combined, but would it accomplish anything useful to select the 2 site models and Add Solids? Anyway, I think adding source data points to the one with stakes is the way to go. -B Quote Link to comment
zoomer Posted August 19, 2017 Share Posted August 19, 2017 (edited) I am a bit wondering whyVW does not create a DTM from 3D Lines and 3D Points. As I learned from Videos that it is a common method to work with points in a DTM made from lines to do some modifications and corrections. And as far as I understood DTM will use Line's Vertices only anyway and ignores form-giving lines when meshing though. Edited August 19, 2017 by zoomer Quote Link to comment
Benson Shaw Posted August 19, 2017 Share Posted August 19, 2017 6 hours ago, zoomer said: I am a bit wondering whyVW does not create a DTM from 3D Lines and 3D Points. 3d polylines and 3d vertices (and stake objects) are all valid site model source data. They can be applied in any combination as data to form the existing status of the site model and/or as modifying data. And, yes, as you suggest, if 3d polylines are included in the source data, the site model is generated as sort of a mesh object created from vertices of the 3d polys (plus any stakes or 3d loci). The form-giving curves between the poly vertices are ignored. -B Quote Link to comment
zoomer Posted August 19, 2017 Share Posted August 19, 2017 But J.Wallace said he was not able to create a DTM using both data, polys and points if I got that right. So mixed sources for DTM modifying only ? Quote Link to comment
Benson Shaw Posted August 19, 2017 Share Posted August 19, 2017 (edited) Not sure why the added stakes/contours did not work for J Wallace to combine the two data sets in one Site Model. Maybe the crop needs to be extended to include the new area? or Site Model min/max elevations exclude the new data? I am able to place 3d polys, stakes and 3d loci as source data for same model. These 3 object types can be mixed in any combination for either existing or proposed site model data. My work flow is to right click the Site Model>Edit Source Data>and Paste in Place the source data from the other site model. Seems to work just fine. -B Edited August 19, 2017 by Benson Shaw more source data Quote Link to comment
zoomer Posted August 19, 2017 Share Posted August 19, 2017 Thanks, good to know. I had Polys OR Points only so far. And I tend to use no more Poly Lines as these don't add any value (their Lines) and have far too many Vertices (Points) 1 Quote Link to comment
J. Wallace Posted August 20, 2017 Author Share Posted August 20, 2017 (edited) 5 hours ago, Benson Shaw said: Not sure why the added stakes/contours did not work for J Wallace to combine the two data sets in one Site Model. Maybe the crop needs to be extended to include the new area? or Site Model min/max elevations exclude the new data? Thanks @Benson Shawthat worked very well. Hadn't thought of that. Thanks again. Strange behavior from the site model when your trying to create a model using both stake objects and 3d contours...definitely doesn't like dealing with both at one time. Thanks to Benson and @zoomer Edited August 20, 2017 by J. Wallace Quote Link to comment
Benson Shaw Posted August 20, 2017 Share Posted August 20, 2017 @j. wallace - just curious. What process was successful? Combine the source data ? Then adjust the crop & min/max elevations? And what are the weird symptoms? My tests are on small site model. Yours looks rather complex. There might be some limit to count of combined data objects or to hardware trying to do the math. Or maybe stakes are too complex so 3D loci would be better. Anyway, glad that something worked -B 1 Quote Link to comment
J. Wallace Posted August 21, 2017 Author Share Posted August 21, 2017 @Benson Shawcombing the source data worked after one set was used to create the model. Odd that adding two different types of source data does not allow for site model creation. Thanks again to both of you. Quote Link to comment
Benson Shaw Posted August 22, 2017 Share Posted August 22, 2017 Hey, Jamie - I wonder what the difference is in your files trying to make site model from several data types? I am able to make a new site model with source data of 3 types. Process: •Placed some 3d contours (red). •Replace one contour with group of 3d loci at same z (blue). (Duplicate Along Path, then delete the 3d poly) •Replace another contour with a group of stakes at same z (black). •Added a group of 3d loci between the contours (pink). I selected the groups and the 3d poly objects, then AEC>Terrain>Create Site Model. This worked to generate a site model. Also successful with the groups ungrouped. Not sure what would happen with a larger data set, or what is happening with your tests. Maybe a stray 2d object got in there with the mixed object types? File v2017 with the source data attached. If anyone wants to try it, select all and then Create Site Model. -B MixedDataSiteModel.vwx Quote Link to comment
zoomer Posted August 22, 2017 Share Posted August 22, 2017 11 hours ago, Benson Shaw said: Not sure what would happen with a larger data set, or what is happening with your tests. Maybe a stray 2d object got in there with the mixed object types? Good idea. Sounds plausible. So worth a try to magic stick select by object, 3D Polys and Points. Invert Selection to look what other objects have been there. Quote Link to comment
J. Wallace Posted August 23, 2017 Author Share Posted August 23, 2017 No idea why this was misbehaving @Benson Shaw. I have attached an earlier version of the file for your interest. When I look at each site model there is only stake objects in the one and 3d polys in the other. Pretty bloated file thought...When I start a new drawing I use one of my templates, perhaps this is the culprit. site_model_sample.vwx Quote Link to comment
zoomer Posted August 23, 2017 Share Posted August 23, 2017 Hmmh, I edited you site models to copy their source data, set both points and lines to a new class and created a single site model from both sources without a problem .... 1 Quote Link to comment
J. Wallace Posted August 23, 2017 Author Share Posted August 23, 2017 Hi @zoomerYes I can combine these after they have separately been created. I don't seem to be able to create a single site model using 3d polys and stake objects. It's all good now. Kind of a funny model in that the data I received was mainly around the building area. Thanks for your help. Quote Link to comment
zoomer Posted August 23, 2017 Share Posted August 23, 2017 Strange. Both latest VW 2017 on Mac. Just that I have Sierra 10.12 Quote Link to comment
Benson Shaw Posted August 24, 2017 Share Posted August 24, 2017 @jwallace - I think I made this work in your file, or maybe not. Amended file is renamed and attached (42.6mb! if too big I will DropBox it). Process: Duplicate Layer Site to create Site-2 I switched to Top/Plan, so defeated the plan rotation. Don't remember the rotation setting. Sorry about that. Enter in turn Source Data for each of the two site models. In each edit space, Select All, Exit, Paste In Place on layer Site-2. Delete both site models on layer Site-2. This leaves a copy on Site-2 of all the source data from both original site models. Orig layer Site is intact. Working in Site-2, Select all. Create Site Model. (command location varies in different module workspaces) Result in my test is a tiny, cropped site model excluding most of the source data, kinda centered on the lower contour data set. Edit Site Model Crop. Delete the crop. Exit. Result is a full sized site model encompassing all the data -stakes and contours. But contour interval does not match models on Layer Site. Enter OIP Site Model Settings. Change Major/Minor contours to match original models on Layer Site. I also increased the elevation min & max, but that was unnecessary. The data points were all in the automatic range. Now the Site 2 drawing is very similar to Site. The contours at z=15 are dissimilar, but I think that's because some of that area was hidden between the two original site models and the data did not interact. Comments: Not sure why the crop appeared during Site Model Creation on layer Site-2. It's a strange, narrow shape. Not sure why the contour interval changed. Maybe vwx has a default setting. Hard to say if this new, combo site model represents the terrain any better than the two separate site models. Seems likely, but it would be nice to have some survey data from the blank area. OK always more for me to learn! -B site_model_sample-B1.vwx 1 Quote Link to comment
Eirik Ørnbo Posted October 3, 2024 Share Posted October 3, 2024 Had challenges with this aswell. Figured out a way (Windows Vw 2024 B6): Quote Link to comment
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