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why can't I create valid polygons

JamesHarrington

I have a personal geodatabase polygon feature class. I started and edit session, created several features. I tried to create another feature and no matter what I do it doesn't work. Only creates empty geometry, i.e. shape_length and shape_area fields are zero. Did not change coordinate system, not going out of bounds, why is this happening???? SO SICK OF ESRI GARBAGE!!!!!!!

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RebeccaStrauch__GISP

I agree with Darren. Once you start going down the path of tweaking feature classes in Access, you run the risk that they will be corrupt.

I'm not sure why a file GDB would not display at all levels unless you have the display restricted in the general tab for the feature class.

If you do need to stick with the personal gdb, maybe, similar to what Rakesh suggestions, you maybe will need to created multiple personal geodatabases, one for each feature if necessary, Then when they all look ok, merge/append them.

It might also help if you provided the version of the software you are using, since each version is a little difference.

DarrenWiens2

Unfortunately, there are several warnings indicating that editing feature classes in Access is risky and may corrupt the geodatabase, such as: http://support.esri.com/cn/knowledgebase/techarticles/detail/31599

JamesHarrington

I have had problems with file geodatabases. Data will not display at certain scales, and I have layers set to be shown at all scales. This has been a problem with multiple file geodatbases, which does not happen in personal geodatbases. I also find it useful to work with data tables in Access, since Arcview/ArcCatalog are very restrictive in editing tables.

From: Rebecca Strauch <geonet@esri.com>

To: James Harrington <mickee320@yahoo.com>

Sent: Saturday, May 2, 2015 12:53 AM

Subject: Re: - why can't I create valid polygons

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GeoNet

why can't I create valid polygons

reply from Rebecca Strauch in Mapping - View the full discussionJames, I didn't see what version you are running, but I wonder if you are hitting the limitation of the personal geodatabase (which is based on Access and does have limitations)? That might be why after three successful adds it has problems. I would recommend using a File geodatabase which is a much more robust format, and is supported moving forward. Five reasons why you should be using the File Geodatabase | ArcGIS Blog If you need help setting a file GDB up, this is the help from 10.2 ArcGIS Help (10.2, 10.2.1, and 10.2.2) it is similar in previous versions, but you can search in the help if this version doesn't work for you. I hope that helps.

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RakeshSinha

James,

Just for testing purpose would you mind exporting out your feature class from the existing personal geodatabase to a new personal geodatabase and then perform some edits. I would like to see if it retains your edits with proper shape area and without 'null' geometry. However, as Rebecca suggested File geodatabase is a native file format of Esri with a lot of capabilities. I would work with a file geodatabase instead of a personal geodatabase. Thanks!

RebeccaStrauch__GISP

James, I didn't see what version you are running, but I wonder if you are hitting the limitation of the personal geodatabase (which is based on Access and does have limitations)? That might be why after three successful adds it has problems.

I would recommend using a File geodatabase which is a much more robust format, and is supported moving forward.

Five reasons why you should be using the File Geodatabase | ArcGIS Blog

If you need help setting a file GDB up, this is the help from 10.2 ArcGIS Help (10.2, 10.2.1, and 10.2.2) it is similar in previous versions, but you can search in the help if this version doesn't work for you.

I hope that helps.

JamesHarrington

State plane NAD83, though my frame and most other layers in the map are NAD27 so that might be the problem, I'm going to try recreating the class in NAD27? thansk for your help

From: Jayanta Poddar <geonet@esri.com>

To: James Harrington <mickee320@yahoo.com>

Sent: Friday, May 1, 2015 5:41 AM

Subject: Re: - why can't I create valid polygons

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GeoNet

why can't I create valid polygons

reply from Jayanta Poddar in Mapping - View the full discussionHi James,What is the coordinate system you are using?You could try Repair Geometry.

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JamesHarrington

Thanks, I tried this, I think It made it worse? But looking at it the porblem may be that I'm in a data frame and most other feature classes are NAD27, my class is NAD83, so may be a problem with transformation. But I don't undetstand why I created 3 features no problem, and is suddenly stopped working. I'll try reproduceing the class in NAD237 and see how that works. thanks!

From: Darren Wiens <geonet@esri.com>

To: James Harrington <mickee320@yahoo.com>

Sent: Thursday, April 30, 2015 4:45 PM

Subject: Re: - why can't I create valid polygons

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GeoNet

why can't I create valid polygons

reply from Darren Wiens in Mapping - View the full discussionIn ArcCatalog, go into the feature class properties. Delete and recreate the spatial index. Fixes some random geometry problems.

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JayantaPoddar

Hi James,

What is the coordinate system you are using?

You could try Repair Geometry.

DarrenWiens2

In ArcCatalog, go into the feature class properties. Delete and recreate the spatial index. Fixes some random geometry problems.

JoeBorgione

I've been using 'ESRI garbage' for over 25 years; never had a problem creating a polygon. I make a darn good living with ESRI products as well. Perhaps you can cool your jets long enough to provide some additional information and we may be able to better assist you.

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