Latest Contributions by ChristianWells

‎10-15-2014

One way that this could be found is by using the arcpy.mapping module to list out all the layers in your MXD. Here is an example of that where it will list both the fully qualified file path and the workspace path: import arcpy mxd = arcpy.mapping.MapDocument("<MXDPath>") df = arcpy.mapping.ListDataFrames(mxd) for d in df: print "Data Frame: " + d.name layers = arcpy.mapping.ListLayers(mxd, "", d) for lyr in layers: print "Layer Name: " + lyr.name print "Data Source: " + lyr.dataSource #This will return the fully qualified path of the file (C:\Shapefiles\femapnls.shp) print "Workspace Path: " + lyr.workspacePath #This will return the workspace path of the file (C:\Shapefiles) Output: Data Frame: Layers Layer Name: FEMA Data Source: C:\Shapefiles\femapnls.shp Workspace Path: C:\Shapefiles Note: This output will be reflect a similar path name if there are raster, csv, dbf, etc. in the MXD (C:\Raster\Aerial.tif)

‎10-14-2014

This can be done using the geometry column of the shapefile to return the length and area in the Calculate Field tool. ArcGIS Help 10.1 import arcpy shp = r"<Path>\<ShapefileName>.shp" arcpy.CalculateField_management(in_table=shp, field="EdgeRatio", expression="!shape.length!/!shape.area!", expression_type="PYTHON_9.3", code_block="#")

‎10-02-2014

Hi Bahram, probably the easiest way to get all the client libraries required is to download them from the my.esri.com portal. However, they can also be downloaded directly from PostgreSQL. The only issue of downloading them directly from PostgreSQL is that the libiconv-2.dll (for Win32) is not included in the PG binaries, this instead comes from the PostGIS install. If you would like to download the client libraries from the my.esri.com you can use the following steps to download the libraries. Log into my.esri.com Click the My Organizations tab Click Products from the Organization ribbon Click Downloads from the Products list 5. Click View Downloads next to your current version of ArcGIS for Desktop 6. Expand the Additional Products tab to download the correct version of the PostgreSQL client

‎10-01-2014

For some users, it is much more efficient to insert data into their SDE feature classes via SQL statements. Although its fairly straightforward to do this for a single feature, it gets a little more complicated when a lot of records need to be inserted while referencing the sde.next_rowid function. However, one way to fulfill the constraints of the primary key and use proper sequencing is to create an iterator in SQL Server. The below example shows how this can be done: -- Truncate the table to have the records inserted TRUNCATE TABLE sde.pipeline_points -- Get the number of rows in the looping table DECLARE @RowCount INT SET @RowCount = (SELECT COUNT(*) FROM [sde].[INPUTTABLE]) -- Declare an iterator DECLARE @iterator INT -- Initialize the iterator SELECT @iterator = MIN(OBJECTID) FROM SDE.INPUTTABLE -- Loop through the rows of a table WHILE @iterator is NOT NULL BEGIN DECLARE @id as integer -- Get OBJECTID value EXEC sde.next_rowid 'sde', 'pipeline_points', @id OUTPUT; -- Insert the data while casting the points geometry INSERT INTO sde.pipeline_points SELECT @id, LATITUDE, LONGITUDE, geometry::STPointFromText('POINT('+str(LONGITUDE, 20, 10) + ' ' + str(LATITUDE, 20, 10) + ')', 4326) as SHAPE FROM [sde].[INPUTTABLE] where objectid = @iterator; -- Update the iterator value SELECT @Iiterator= MIN(OBJECTID) FROM SDE.INPUTTABLE WHERE @iterator < OBJECTID END This script is also helpful for selecting geometries on the fly from the Lat/Long fields within a table without having to use the Display XY tool in ArcMap. SELECT *, geometry::STPointFromText('POINT(' + Str(LONGITUDE, 20, 10) + ' ' + Str(LATITUDE, 20, 10) + ')', 4326) AS shape FROM database.SCHEMA.table

‎09-22-2014

Hi Gustavo, probably the easiest way to get all the client libraries required is to download them from the my.esri.com portal. However, they can also be downloaded directly from PostgreSQL. The only issue of downloading them directly from PostgreSQL is that the libiconv-2.dll (for Win32) is not included in the PG binaries, this instead comes from the PostGIS install. If you would like to download the client libraries from the my.esri.com you can use the following steps to download the libraries. Log into my.esri.com Click the My Organizations tab Click Products from the Organization ribbon Click Downloads from the Products list 5. Click View Downloads next to your current version of ArcGIS for Desktop 6. Expand the Additional Products tab to download the correct version of the PostgreSQL client

‎09-19-2014

Yes, that warning is to be expected if the ST_SHAPELIB is not specified for the correct path. This warning can be addressed after creating the geodatabase by configuring the external processes (exproc.ora) for Oracle to point to the ST_SHAPELIB.DLL. Configuring the Oracle extproc to access the geodatabase with SQL: ArcGIS Help (10.2, 10.2.1, and 10.2.2)

‎09-18-2014

Hi Julie, can you try the following script: #create a new sde connection #List all featureclasses in a geodatabase, including any within feature datasets import arcpy,os from arcpy import env arcpy.env.overwriteOutput = True arcpy.CreateDatabaseConnection_management(out_folder_path="Database Connections", out_name="GIS winauth to gis-server.sde", database_platform="SQL_SERVER", instance="gis-server", account_authentication="OPERATING_SYSTEM_AUTH", database="GIS", version_type="TRANSACTIONAL", version="dbo.DEFAULT") arcpy.env.workspace = r"Database Connections\GIS winauth to gis-server.sde" datasets = arcpy.ListDatasets(feature_type='feature') datasets = [''] + datasets if datasets is not None else [] for ds in datasets: for fc in arcpy.ListFeatureClasses(feature_dataset=ds): path = os.path.join(arcpy.env.workspace, ds, fc) print path I believe the problem with the previous script was that the parameters were looking for the data in the following order: (out_folder_path, out_name, database_platform, instance, {account_authentication}, {username}, {password}, {save_user_pass}, {database}, {schema}, {version_type}, {version}, {date}) Although they are optional parameters, arcpy is expecting a variable there. So another way to complete this is to specify the dictionary parameters for arcpy.CreateDatabaseConnection_management()

‎09-18-2014

Hi Julie, I don't see the script attached to this message, can you post it again?

‎09-18-2014

No, if you want to use the Create Enterprise Geodatabase tool with a predefined tablespace for SDE, you can allow the tool to create the user and grant permissions to sde. However, you will need to specify the existing tablespace name in the tool under the Tablespace Name parameter. As long as that tablespace name exists, the tool will assign the SDE user to that tablespace.

‎08-13-2014

Here is a picture showing the output when DefQ is outside the parameters.

‎08-13-2014

It looks like you are missing a right parentheses on your "b" variable. #Current b variable b = sum(row[0] for row in arcpy.da.SearchCursor(fc, 'QUANTITY_SOLID')),DefQ #This returns both the b variable and the definition query separated by a comma similar to a tuple #Should be to return a value of b from a search cursor with definition query DefQ b = sum(row[0] for row in arcpy.da.SearchCursor(fc, 'QUANTITY_SOLID',DefQ)) The original script has the definition query outside the parameters of the SearchCursor tool. Then when the "b" variable is called later on, it is read as a tuple instead of a single string/integer/float/etc. By moving the definition query inside the parentheses, it should return a value "b" from search cursor with definition query "DefQ". This should return a single variable instead of a tuple.

‎08-06-2014

I'm glad to hear this worked! The reason that it won't work in a File Geodatabase is because it requires the use of a subquery ("Elev_Diff in (select MIN(Elev_Diff) from <featureclass>”) which isn't supported in a File Geodatabase as of yet. One way that this could be worked around is by running the process through Python and finding the minimum value there instead.

‎08-06-2014

I believe that the issues being faces are related to the geodatabase referenced in G (7_Match_DTM_Assessment.gdb) and used for the FC to FC in B. This is currently a File Geodatabase (.gdb) and needs to be a Personal Geodatabase with a .mdb extension.

‎08-06-2014

Can you send a picture of your model and the settings of the "Name” variable?

‎08-05-2014

No problem. Do you get the error when running the model or verifying the SQL expression? If it happens during the verify, this would be expected because the verification does not substitute the value of the inline variable when evaluating an expression. When the tool runs, the value of the inline variable is substituted in the expression and the results are created based on the substituted values. (See link here)

Online Status	Offline
Date Last Visited	3 weeks ago

My Ideas

Latest Contributions by ChristianWells

Re: How to print the list of "table of contents (TOC)"

Re: Hi

Re: PostgreSQL client files

Iterating insert geometry statements via T-SQL

Re: I need the download path of the PostgreSQL client files

Re: sde tablespace

Re: python script using arcpy.CreateDatabaseConnection_management creates a connection to the wrong geodatabase.

Re: python script using arcpy.CreateDatabaseConnection_management creates a connection to the wrong geodatabase.

Re: sde tablespace

Re: Python script giving 'TypeError - Unsupported Type: Tuple'

Re: Python script giving 'TypeError - Unsupported Type: Tuple'

Re: Model builder, find minimum value, Iterate feature class

Re: Model builder, find minimum value, Iterate feature class

Re: Model builder, find minimum value, Iterate feature class

Re: Model builder, find minimum value, Iterate feature class

Re: Is it better to use Pandas/SQLAlchemy or Arcpy...

Receive ArcGIS patch notifications in the Esri Sup...

Re: Future Proofing Your GIS Career

Re: Looking for Guidance: Masters in GIS

The Art of Resumes: Apply These Best Practices

GIS Leadership User Group