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Using transformers to modify data.

  • 12,751 Posts
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12751 Posts
M
minorsecond
asked in Transformers
Defining Projection for MODIS Data

I'm trying to process MODIS data that is provided in the Sinusoidal projection. The World Sinusoidal projection that is provided in FME Workbench doesn't seem to be the same, and I can't figure out how to set it for this data. I don't want to use GDAL to do it manually as there are quite a few hdf files.After scouring the internet, there is a reference to the following proj4 string on StackExchange:"+proj=sinu +R=6371007.181 +nadgrids=@null +wktext"However, I'm unsure how to utilize this in FME. Is there any way to use a proj4 definition in FME Workbench?

570
daveatsafe
Safer
6 years ago
A
anne_shanahan
asked in Transformers
related candidates is 0 when using group by settings

Hi all, FME amateur here! I'm trying to increase the performance of my model. The performance is vastly improved when I use the Group By setting and Parallel Processing in my SpatialRelator. The SpatialRelator is followed by an Attribute Creator which uses a conditional query (combination the number of related_candiates and dataset name) to set a value. Without the Group By and Parallel Processing FME will correctly tell me the number of related features in the related_candidates field. However when I put the Group By setting on - every value in the related_candidates field is 0. Does anyone how to fix this?Ta

100
A
6 years ago
B
bradmason2015
asked in Transformers
How to create a table of attributes from a geotiff and generate statistics?

Is there a way to create a table of attributes from a geotiff? I would like to create a table of pixel values where each pixel has an associated elevation. Elevations can be negative or positive and are from LIDAR. The table can be a .txt file. Zonal Spatial statistics with ESRI can create a table of attributes but the geotiff cannot have float values. The elevations for my geotiff range from about -10.00001 to 24.00001 so these valuse will not work with spatial analyst. I would also like to create statistics for specific elevation classes. any advice welcomethanks

1760
B
6 years ago
caracadrian
Contributor
caracadrianContributor
asked in Transformers
Help adding a custom transformation

I am trying to add a custom transformation using a NTv2 grid shift file.I have defined this .fme file in \\Documents\\FME\\CoordinateSystems\\ :XFORM_DEF Stereo70_to_ETRS89_NTV2 \\  SRC_DTM PULKOVO42/58 \\  TRG_DTM WGS84 \\  DESC_NM "Stereo 70 to ETRS89 using grid shift file generated from TransDatRo grid" \\  GROUP Romania \\  INVERSE Yes \\  METHOD GRID_INTERP \\  GRID_FILE NTv2, fwd, .\\GridData\\Romania\\stereo70_etrs89A.gsbNow FME wont start. I get the error mesage: Xform 'Stereo70_to_ETRS89_NTV2' contains invalid GRID_FILE value of 'NTv2,'

370
caracadrian
Contributor
6 years ago
L
landersolsson
asked in Transformers
Overlaping clippers and multiple/overlapping Clippee

Hi,I have a number protected areas that is partly overlappingareas. I want to investigate how many och och much of these areas that are influenced by different corridor alternative, that is partly overlapping. I am using a Clipper transformer with the corridors as clipper and protected areas as clippee. Is there a way of solving this without a attribute filter for the corridor? Overlapping polygon Intersect/clipp Overlappling polygon? Looping through the corridor FeatureType Thanx in advanced

140
L
6 years ago
L
lenzschutzbach
asked in Transformers
How to filter single elements of a string and save as shp-file?

Hi, I have a shp-file with 99 buslines. the Attribute is line and the Features are 141,166,171..etc.(devided by a comma) my output should be 99 shp-files whose each includes one single line. The problem is on the inspector i can find any single value, but with the attributefilter i only find some where my value is at the beginning or stands alone. Any ideas how i can manage that issue? Thx

60
L
6 years ago
K
koala18
asked in Transformers
Writing Existing Data into a new data model with new domains

Hello, I try to read my existing data model into a new empty data model with domains set up already when I built the new data model. After setting up the transformers at the FME workbench, the data got pushed over just fine from FME Inspector. When I open up ArcCatalog to check the data, the fields which have domains set up are all empty. I would assume it is because of the domains so it will not allow any other value to be in the dataset. In order to resolve this issue, do I need to manually clean up my existing data (lots of data!!) on ArcMap, in other words, to fix my existing values to match the new domain code for the new model? Or should I try something else?

1020
K
6 years ago
pflegpet
Contributor
pflegpetContributor
asked in Transformers
Expose windows file attributes from https

Hi,  I would like to read a csv file (zipped) from a https site and expose the "date modified" value. I found this thread explaining how to use the Directory and File Pathnames - Reader but that does not work for https sources. https://knowledge.safe.com/answers/32678/view.html Is there any workaround without downloading the file first? Thank you for your help.

416
pflegpet
Contributor
6 years ago
V
vikastawde
asked in Transformers
Why FME 2016.1.0.0 desktop log file show server type `ORACLE8i' when I use oracle client & server as 12.1.0.2?

My FME job is failing & I am trying to troubleshoot. I found in desktop log file server type `ORACLE8i' when I use oracle client & server as 12.1.0.2. Why it is showing me server type "ORACLE8i' when I am using oracle 12C database server & client?

90
V
6 years ago
M
mmahmud
asked in Transformers
How do I detect fme_date with the C++ SDK for a custom writer?

I am writing a custom writer that has a special date format. I would like to detect when a string has the native fme_date, fme_time, or fme_datetime format and convert the internal YYYYMMDD etc. format to my internal format. I am using the C++ SDK, and am unable to find any function that tells me what native format is being used. The best I can find is getAttributeType() and getAttributeEncoding(), but these functions only return FME_ATTR_ENCODED_STRING (an FME_AttributeType enumeration), and 'utf-8'. For a regular string attribute that does not have the 'date' format in the reader (I'm using the oracle reader and connecting it to my custom writer), the attribute type is FME_ATTR_STRING rather than encoded string. Is there any way to detect on the custom writer side what native FME format was used by the reader? And if so, are there convenient format conversion functions available in the SDK? Using the DateTimeConverter transformer in the workbench is not an i

80
M
6 years ago
G
gispro
asked in Transformers
Plans for adopting PROJ.5 ?

Hello Safe,PROJ.5 has just been released, and it seems to be a great improvement to PROJ.4.It looks like all manner of "difficult" projection will be supported (with polynomials and Helmert), so is Safe planning to take advantage of this, and implement PROJ.5 support e.g. in the next major release ?I know for a fact, that Danish legacy projections will be implemented shortly (if not already), with full accuracy, and henceforth will be maintained here. This enables centimeter accuracy in reprojections.Cheers

80
G
6 years ago
J
jimmer
asked in Transformers
How do I export multiple MapInfo files into a single shapefile?

I need to export several hundred MapInfo files into a single shapefile that retains all the individual geometry and attributes. Which transformer would be best?

100
jdh
Contributor
6 years ago
D
dbaldacchino
asked in Transformers
FeatureJoiner - 2018 Release Candidate

So I've been playing around a bit with this new transformer (check out this great post by @Mark2AtSafe https://blog.safe.com/2018/01/data-join-with-fme-evangelist171). When using the FeatureMerger, one trick I use a lot is to simply type the same string or a single character for the supplier and requestor in order to force a join, irrespective of whether the two have any common data. I learned this trick at last year's FME World Tour in Houston if I recall. However this doesn't seem possible with the new FeatureJoiner as it won't accept a text input. You have to instead create a new left and right attribute and supply some common value, then remove the attribute after joining (which is what I used to do before learning that quick trick!).Is the new FeatureJoiner going to get the ability to input text instead of being forced to pick an attribute? Thanks.

70
mark2atsafe
Safer
6 years ago
M
mdamorim75
asked in Transformers
How can I convert shapefile into asc or text file?

I´d like to know how can I convert the shapefile into (formated) asc file.

570
gio
Contributor
6 years ago
sofia
Contributor
sofiaContributor
asked in Transformers
How do I get the coordinate system from EXIF?

Hi, I am using the translators PhotoCoordinateExtractor to VertexCreator and then writing to a shapefile in order to get points from photos. The problem is that the shapefiles then don't have a spatial reference.Is there any way of getting what the spatial reference / projected coordinate system is from the EXIF information or any FME feature attribute?Or should I just assume that its WGS84?Here are the attributes I know exist, but I dont think any of them can answer my question: exif_brightnessvalue (string) exif_imageuniqueid (string) fme_basename (string) fme_dataset (string) fme_feature_type (string) fme_geometry (string) fme_type (string) jpeg_exif_aperturevalue (string) jpeg_exif_colorspace (string) jpeg_exif_componentsconfiguration (string) jpeg_exif_datetime (string) jpeg_exif_datetimedigitized (string) jpeg_exif_datetimeoriginal (string) jpeg_exif_exifversion (string) jpeg

210
redgeographics
Celebrity
6 years ago
M
mattenvsys
asked in Transformers
Ignore value of 0 in ExpressionEvaluator

Hi, I'm trying to evaluate if multiple columns in a single row are populated with values and then count how many columns have a value.For example:COLACOLBCOLCCOLDCOUNT0000042010276210030001571I used the ExpressionEvaluator with the following expression:COUNT = (COLA/COLA)+(COLB/COLB)+(COLC/COLC)+(COLD/COLD)But obviously dividing by 0 is throwing the whole result off. Is there some form of COUNTIF in FME?Are you able to suggest a better solution / fix my expression to ignore dividing by zero?Any help would be greatly appreciated. My brain has decided to give up today...

400
M
6 years ago
J
jamessulzman
asked in Transformers
SQL works everywhere but in FME transformers where a SQL statement is accepted

This SQL works in Toad, plsqlDeveloper, sqlplus etc.. but not FME transformers that accept SQL statements. SELECT permit, mon, quantity FROM isf UNPIVOT (quantity FOR mon IN (jan, feb, mar));I tried this SQL with an Access database, and connections to a non spatial Oracle database. Connections to the data with simple SQL work just fine. Must be that "UNPIVOT" is not supported. Error message is Provider error `(-2147217900) Syntax error in FROM clause. Any help, or workaround is greatly appreciatedlink to example SQL to try in FME: http://www.orafaq.com/wiki/UNPIVOT

140
david_r
Evangelist
6 years ago
F
frsisani
asked in Transformers
I have a road network with streetnames i want to check some gaps in the continuity of the streetnames

I have a road network with streetnames i want to check some gaps in the continuity of the streetnames

120
takashi
Contributor
6 years ago
kartemann
kartemann
asked in Transformers
SQL grouping issue

I'm attempting the below query in an SQL Creator. I get a "malformed statement" error. How should I format this to run? It works outside of FME... Thanks!  SELECTfield1,field2, field3  FROM table1 INNER JOIN table2 ON table1.ID = table2.ID  GROUP BY field1,field2

90
takashi
Contributor
6 years ago
C
chriseisinger
asked in Transformers
Expose zipfile filename attribute

I am very new to FME, so apologies if I'm missing something obvious. . .I am trying to expose the filename of zipped FGDBs in a reader that uses a wildcard (i.e. *.gdb.zip). I want the filename of the zipfile, which is different from the underlying FGDB name in this case. Exposing the name via fme_basename or fme_dataset attributes does reveal everything from the FGDB nicely, but it does not appear to reveal the zipfile filename (which makes sense).So, any ideas how one might expose the zipped file filename when the reader is using a wildcard?Thanks for any help.-Chris

82
C
6 years ago
A
andyew
asked in Transformers
Spatially mangled AutoCAD file for spatial conversion

Folks,We have an AutoCAD file that has been treated very badly. Originally it was LatLong projected GIS data but a contractor with no idea about spatial data exported the data as simple CAD coordinates and scaled the CAD by 200K to get into some sort of reasonable scale.We're trying to work out how to transform the CAD back into LatLong. We tried defining a custom projection with a scale of 0.000005 but we're getting errors saying FME can't start the projection engine.In simple terms 1. the drawing is in a known spatially damaged state2. If we could scale the drawing by 0.000005 the drawing would be in a plane expression of LatLong3. We then need to somehow tell FME how to deal with this Sorry for the odd post but we're having a lot of trouble with this.Thanks in advance.

80
A
6 years ago
J
josephjose
asked in Transformers
extract coordinate in degree decimal

I use the NZTM coordinate system in my file geodbI have a workbench extracting me the center of polygans. The extracted values are in meters.Can someone tell me how to change the coordinates in degree decimal format?Equivalent to the ArcMap, calculate geometry center -> X coord specifying units as degree decimal

1430
jdh
Contributor
6 years ago
C
ccdcpublic
asked in Transformers
XMLXQueryExtractor from sampler

HiIs it possible to have xmlxqueryextractor to read from the source of a Sampler.My issue is the source XML file has multiple records therefore I only wish to process them singularly from a sampler of 1st...Cheers

329
C
6 years ago
U
ukrsolid
asked in Transformers
Geographic Offsetter

Hi, I have file with starting point in GCS (longitude and latitude values) and all next points are defined as offsets in meters using using Cartesian coordinate system. From those points then I need to build a line(this part is not a problem). I found Offsetter but is seems like it accept GCS only(or whatever Coordinate System the feature is in). What I'm looking is something like Offsetter but with Geographic features (like GeographicBufferer) where you can specify X,Y in meters/miles. Please advice.  Regards, Yarko

320
lars_de_vries
6 years ago
B
brek_graham
asked in Transformers
Is it possible to extract an AutoCAD Map Object Data schema

I'm attempting to extract an AutoCAD Map Object Data table with field definitions. For example the object data table name is "Attribute" and it contains a field named "ATTRIB_ID". I can get the table name with no problem and can write it out. If I use the "Prepend Table Name" & "Seperator Character" params I can produce something like "Attribute.ATTRIB_ID" which appears in the Feature Information pane but I'm unable to expose that value.Any suggestions would be appreciated!Thanks,Brek 

350
lars_de_vries
6 years ago

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