Skip to main content
Question

geodatabase API writer geometry

jneujens
Forum|alt.badge.img

Hi all,

During a translation process, I am writing some curved lines to a file geodatabase using the 'Esri File Geodatabase Open API' writer (the red lines in the screenshot). When inspecting the outcome, I noticed that the shape of the lines have changed. The lines were slightly moved and/or changed shape completely.

When writing the same to (for example) a shapefile, I don't have this issue.

Note that this is already occurring on a large scale: the red line in the screenshot is the distance of 0.0002 units.

Is this a known issue? Or am I missing something else here?

5 replies

david_r
Evangelist
  • david_rEvangelist
  • June 7, 2018

This is in the FME data inspector, right? Have you tried inspecting the objects in any other software, such as ArcGIS or QGIS?

lars_de_vries
Forum|alt.badge.img+10

I can think of a number of things that happened here:

- The most logical (to me) would be the resolution/tolerence settings of your feature class. The screenshot shows a very large scale and this kind of 'minor' flaw can happen than.

- Another thing I would be thinking of is a reprojection 'error', but I do not know whether you have done such an action.

- A third possibility I can think of is writing a different kind of arc then originally is being read.

Hope this helps you in finding the source of your problems.

jneujens
Forum|alt.badge.img
  • jneujens
  • Author
  • June 7, 2018
lars_de_vries wrote:

I can think of a number of things that happened here:

- The most logical (to me) would be the resolution/tolerence settings of your feature class. The screenshot shows a very large scale and this kind of 'minor' flaw can happen than.

- Another thing I would be thinking of is a reprojection 'error', but I do not know whether you have done such an action.

- A third possibility I can think of is writing a different kind of arc then originally is being read.

Hope this helps you in finding the source of your problems.

Thanks for your answer!

 

- The tolerance settings in the writer were changed between 0.001 and 0.0000001) but the I had the exact same result.

 

- There is no reprojection. In fact, just connecting the reader with the geodatabase writer is already enough to create this issue.

 

- Writing a different kind of arc? I can only select geodb_polyline in my writer?

 

 

jneujens
Forum|alt.badge.img
  • jneujens
  • Author
  • June 7, 2018
david_r wrote:

This is in the FME data inspector, right? Have you tried inspecting the objects in any other software, such as ArcGIS or QGIS?

Good suggestion! But in QGIS it shows the same thing... :)

 

 

david_r
Evangelist
  • david_rEvangelist
  • June 7, 2018

Does your input have curves? Is it possible that your curves are stroked somewhere along the way? Send both the input and output geometry to the FME data inspector, click on each of them and inspect the geometry details in the right hand pane. Are they identical?

Also consider saving a single input and output feature to FFS and post it here for analysis.

Reply


Helpful Members This Week

Community Stats

30,971
Posts
117,389
Replies
38,755
Members

Latest FME

Terms & ConditionsCookie settings

Cookie policy

We use cookies to enhance and personalize your experience. If you accept you agree to our full cookie policy. Learn more about our cookies.

 
Cookie settings
A product of
Safe Software respectfully acknowledges that we live, learn and work on the traditional and unceded territories of the Kwantlen, Katzie, and Semiahmoo First Nations.