Finches Import SHP File Component

Replies to This Discussion

Permalink Reply by Carlos Emilio Sandoval O on September 17, 2013 at 11:31am

Hi Scott,

The problem is that the Rhino.Geometry.Point3d class doesn't take any user strings. We use the user strings to give every piece of geometry GIS attributes. I made a temporary fix for the component. It will import the points into GH, but you will not be able to read their GIS attributes (which is what the GH shp importer does anyways!). 

To get the GIS attributes for points I will have to rewrite the way we are outputting points, or wait to see if they add an addUsedrStrings method to the Point3d class (which might take too long). I'll work on it and upload the fix soon.

For now, use the attached file to read Point geometries without GIS attributes. I have tested the Finches components on a gh 9.0056 install, and they work. Can you send me some extra information about the errors you get on that version so I can debug it?

Carlos

Attachments:

• finches_fix.gh, 11 KB

Permalink Reply by Scott Overall on September 17, 2013 at 9:53pm

Fantastic.  this seems to work for the most part, but another error I am running into is that there seems to be a corrupted/missing point in the shape file.  It is still returning the valid points, but one is missing.  In the "out" node of the component, it is returning an error message of some kind, but when I plug it in to the panel component to read and copy the error, the panel component encounters an error and can't display the message.

I was hoping to be able to read in the corresponding .dbf file alongside the shape file via excel to match the data to the points, but because the corrupted point is omitted from the list and there is no indication of what index that point is supposed to be at, I can't accurately match up my data.

Permalink Reply by Carlos Emilio Sandoval O on September 18, 2013 at 11:39am

Hi Scott,

I'm not getting any errors. Are you using the same shp file you mentioned before?

The panel was giving you an error because it was trying to display all the points as a single string. I disabled the print statement in the attached file, so you can plug panels into the 'out' output.

Attachments:

• finches_fix.gh, 11 KB

Permalink Reply by Jacob on October 2, 2013 at 3:08pm

Don't know if I'm getting an error because of the file type or because of its size, but have been having problems with this shape file 

https://www.dropbox.com/s/nwitnwt9ch783vu/zoning_countywide.shp

Permalink Reply by Carlos Emilio Sandoval O on October 2, 2013 at 3:55pm

I need more information about your error. My guess is that your computer is running out of memory because of the shp file size. Try cropping it with ArcMap.

Permalink Reply by Jacob on October 2, 2013 at 5:40pm

I'll give the ArcMap a try and see if that's the issue.

Permalink Reply by Carlos Emilio Sandoval O on October 2, 2013 at 5:47pm

It doesn't seem to be a problem with how large the shp file is. Try setting move to center to False. Hopefully if you trim or crop the shp file to the area you're working on with ArcMap, you can get rid of the geometry causing the issue. I'll try to look at the problem with your shp file in the next days.

Permalink Reply by Gui Talarico on November 1, 2013 at 4:47pm

Would this work for multipatch?

Thanks!

I have a shp file with 3d-buildings, and I don't have access to arcgis. I have been struggling to find a way to bring it into GH.

Permalink Reply by Carlos Emilio Sandoval O on November 3, 2013 at 7:01am

It should work for multipatch (as long as you have a valid shp file). The Z-height of the buildings will be and attribute of the shp file that you can use to extrude the buildings.

Permalink Reply by Gui Talarico on November 5, 2013 at 2:59pm

Uhm. Perhaps it is not a true multipatch. 

This is the file I am trying to get imported:

http://dcatlas.dcgis.dc.gov/metadata/BldgPly_3D.html

Permalink Reply by Carlos Emilio Sandoval O on November 5, 2013 at 5:26pm

It is a shp file, and it can be imported with the components (It might be slow or crash your computer, since you are trying to import a 500+ mb file). However there's no Z value field (only size).

You might wanna think about cropping your shp file to the area you need, otherwise it will take too long to import. You don't need ArcGIS to manipulate shp files. There's free and opensource software like QGIS...

Post information about the problem you are having, (maybe a screenshot?) otherwise I can't help you.

Permalink Reply by Adi K on May 4, 2016 at 4:02am

Great help! thanks :)

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