Latest Contributions by JenniferHorsman

I have a checkbox control as part of a dockable window in VB .net that turns a particular layer's visibility on and off in ArcMap. The initial state is set to "unchecked". But, if I load the tool into ArcMap and use it when that layer is already visible, the checkbox works in reverse (checked when the layer is off and unchecked when the layer is on). Is there any way I can check the visibility of the layer when the tool is first loaded and then set the state of the checkbox? I tried putting some code in Public Sub New() function for my dockable window, but this crashed ArcMap. Here is what I had (with 3 dots representing other code). My checkbox is named chkBasemap. In this simple example, I just assume the basemap layer I want to toggle the visibility of is always the second layer. Public Class DockWinClimateTools   Public Sub New(ByVal hook As Object)         ' This call is required by the Windows Form Designer.         InitializeComponent()         AddItems()         CheckStates()         Me.Hook = hook   End Sub   Public Sub CheckStates()         Dim pMxDoc As IMxDocument = My.ArcMap.Application.Document         Dim pMap As IMap = pMxDoc.FocusMap         Dim baseLayer As ILayer = pMap.Layer(1)         If baseLayer.Visible Then             chkBasemap.Checked = True         Else             chkBasemap.Checked = False         End If    End Sub . . . End Class ... View more

Hello, I am trying to convert some 9.3 python scripts that use the geoprocessor object gp to use arcpy instead. I am struggling with the conversion of Single Output Map Algebra (SOMA) that uses exp. Also, the script first calculated IDW on a set of points and that alone was quite a struggle to figure out since the 10.2 help for Spatial Analyst IDW does not show the correct input parameters! Add to the confusion the decision of when to use arcpy.Raster and when not to. Anyway, I am very close, but for some reason when I run arcpy.Exp_sa on my raster as such: ExpOut = arcpy.Exp_sa(IDWOut) another raster is automatically output by Exp with the same name as IDWOut, but with Exp_ at the beginning and _1 at the end. For example, if IDWOut is "IDW_PAH_filtered", then a raster called "Exp_IDW_PAH_filtered_1" is automatically created. According to the help page http://resources.arcgis.com/en/help/main/10.2/index.html#//009z0000008s000000 the output should be saved to ExpOut, but when I look at the values of that raster, I can see that they have not had the exponential applied. So confused!! Here are the actual code snippets: geoDB = sys.argv[1] COCLayer = sys.argv[2] COCField = sys.argv[3] PerfLog = sys.argv[4] IDWCellSize = sys.argv[5] IDWPower = sys.argv[6] IDWRadius = sys.argv[7] IDWMask = sys.argv[8] IDWBarrier = sys.argv[9 and IDWOut = geoDB + "\\IDW_" + COCLayer arcpy.Idw_sa(geoDB + "\\temp_data", COCField, IDWOut, IDWCellSize, IDWPower, IDWRadius, IDWBarrier) ExpOut = arcpy.Exp_sa(IDWOut) IDWOut = arcpy.Raster(ExpOut) / 1000 And the temp_data is a temporary point shapefile that is created correctly by the script. I started wondering if Exp has the wrong input parameters on the help page just like Idw and maybe needs an output raster as one of the parameters, like: arcpy.Exp_sa(IDWOut, ExpOut) but when I tried that, I got an error saying "name 'ExpOut' is not defined". If anyone has any insights, I will welcome them. Yes, I know I can still use the old gp method, but I really want to avoid that. By the way, here is what it used to look like: IDWOut = geoDB + "\\IDW_temp" outRaster = geoDB + "\\IDW_" + COCLayer gp.Idw_sa(geoDB + "\\temp_data", COCField, IDWOut, IDWCellSize, IDWPower, IDWRadius, IDWBarrier)       inExpress = "( exp (" + IDWOut + ") ) / 1000" gp.SingleOutputMapAlgebra_sa(inExpress, outRaster) The inputs sys.argv[] were the same. In that case, IDWOut was a temporary raster that was deleted later and the final output was outRaster, but doing something similar with arcpy was creating even more problems. ... View more

I am trying to validate a topology shared between a polygon dataset and a line dataset. There are 3 rules: 1) line features must be covered by the boundary of polygon features, 2) polygon feature boundary must be covered by line features, and 3) line features must not have dangles. The two datasets I am working on are each the result of a dissolve of other polygon and line datasets which also had shared topology, the rules for which I was able to validate and correct all errors for. But when I try to validate the topology for these dissolved datasets, I get the following error: "Validate Topology failed. A failure was detected inside the topology engine. [error id: 257] Cannot register as versioned on this database." I do not understand why versioning is even a problem since these datasets are part of a file geodatabase, not an SDE geodatabase. I have tried to run each rule individually, but I get the same error each time. ... View more