Latest Contributions by DuncanHornby

The lack of an index in the Help is driving me nuts, I cannot understand their reasoning behind removing it. Their logic assumes that you have exisiting knowledge of what ESRI names a topic/tool/processing step so you just type it in. It also assumes that we are all cuturally the same and use the same combinations of words to mean the same thing. I rarely use free text search I almost always do my searching throught the index as once I know a location I can drill down to that part of the Help I need. ... View more

May be a bit late in this discussion but I was playing around with creating in_memory workspaces in VBA (ArcGIS 9.3). Here is my code. Public Sub InMemoryExample() ' Description: Sample code showing how an in memory table can be created ' Create Workspacefactory Dim pWorkSpaceFactory As IWorkspaceFactory2 Set pWorkSpaceFactory = New InMemoryWorkspaceFactory ' Create Workspace Dim pWorkspaceName As IWorkspaceName2 Set pWorkspaceName = pWorkSpaceFactory.Create("", "MyInMemoryWorkspace", Nothing, 0) ' Get a handle on Name Dim pName As IName Set pName = pWorkspaceName ' Get a handle on FeatureWorkspace Dim pFeatureWorkspace As IFeatureWorkspace Set pFeatureWorkspace = pName.Open ' Now create a fields object and add some fields to it ' Create Fields object and set the number of fields Dim pFields As IFields Set pFields = New Fields Dim pFieldsEdit As IFieldsEdit Set pFieldsEdit = pFields pFieldsEdit.FieldCount = 2 ' Create objectID field Dim pField As IField Set pField = New Field Dim pFieldEdit As IFieldEdit Set pFieldEdit = pField With pFieldEdit .Name = "OBJECTID" .Type = esriFieldTypeOID End With Set pFieldsEdit.Field(0) = pField ' Create Type field Set pField = New Field Set pFieldEdit = pField With pFieldEdit .Editable = True .Name = "VegType" .Type = esriFieldTypeString .Length = 4 .AliasName = "Vegetation Type Code" End With Set pFieldsEdit.Field(1) = pField ' Create Table Dim pTable As ITable Set pTable = pFeatureWorkspace.CreateTable("MyInMemTable", pFields, Nothing, Nothing, "") ' Create a sample row and add data Dim pRow As IRow Set pRow = pTable.CreateRow With pRow .Value(1) = "WOOD" .Store End With ' Add table to map document Dim pMXD As IMxDocument Set pMXD = ThisDocument Dim pMap As IMap Set pMap = pMXD.FocusMap Dim pStandAloneTableCollection As IStandaloneTableCollection Set pStandAloneTableCollection = pMap Dim pStandAloneTable As IStandaloneTable Set pStandAloneTable = New StandaloneTable Set pStandAloneTable.Table = pTable pStandAloneTableCollection.AddStandaloneTable pStandAloneTable pMXD.UpdateContents End Sub Duncan ... View more

Ryan, You could convert your raster to a point dataset and then do a spatial join setting join type to JOIN_ONE_TO_MANY. You will create a featureclass with the polyline duplicated for every point that joins to it, then do you summary stats grouped by the polyline ID. Duncan ... View more

Anna, You want to assign each node in the network it's "valency". I'm assuming you've used productivity suit to import the data into a file geodatabase? Do a spatial join using the geoprocessing tool of roadlinks (RdLk) intersecting nodes (RdNd) setting join operation to JOIN_ONE_TO_MANY This creates a dataset with a row for each polyline intersecting a node You can then use the Frequency tool or summary statistics tool to count TARGET_FID, this will count the number of times a node was selected. This gives you a table where for each OBJECTID (refered to as TARGET_FID) has a count. Duncan ... View more

You could make a button in ArcCatalog and then attach the code in this example to achieve this... ... View more

Bill, I think you are using the wrong tool. You want to be using the Select tool found in Analysis Tools > Extract toolbox. Duncan ... View more

Bart, Sounds like you have found a bug? Alternatively (although not tested by me) is you could create the event layer using the arcpy.MakeXYEventLayer_management tool from the table as you know what the table is called and never have the need to "enter" the MXD? Just an idea... Duncan ... View more

Here is a sample of how to set up the IGeoProcessor, in this example they are calling a custom tool but it could equally be a standard esri tool. You just need to be careful in the order you add the tools parameters to the array object, this must be the same as how you would fill in the tool. Duncan ... View more

Craig, The lines of code 187 & 188 you are suggesting is python code which is not VB. I have 9.3 and the CreateObject function on line 187 works fine for me so this makes me wonder if ESRI have done something behind the scenes in 9.3.1. Can someone clarify this? ESRI want us to use the new way of creating a GeoProcessor object, the IGeoProcessor. You can still call the standard tools using this new interface you just do it differently. I find it actually easier to use, as the intellisense works. Do a search on the old forum for IGeoProcessor and you'll see lots of examples of how to construct it and invoke tools with it. Duncan ... View more

Curtis, Ah! This is good news about embedding scripts into the toolbox. I don't have v10 although there is a v10 machine in the office but I have yet to get up to date with whats new.  So what happens if you embed a python script then realise you've got a bug in it (highly likely as I hate using Python!), is the process of embedding a script a one way task or can you un-embed it to edit it? Duncan In Arc 10 you could create a python script and import it into the toolbox - this is a new functionality that will do what you want. But I do agree that there should be a standard tool for this and voted up your idea! Here's the online help on embedding scripts in toolboxes. ... View more

Curtis, Oh dear, thanks for your idea, a bit of a fudge but I guess a tool should really exist, I suggested this on the ideas website. Duncan ... View more

Bernd, Looking at the help the Add method on IcommandBar is adding an object of type ICommandItem which has a property Group that creates the separator. I don't think you simply add a separator you say if the item is the start of a new group. Duncan ... View more

Bernd, You create the separators in the XML section, see highlighted code below which I have copied out on an existing project of mine. Duncan <Menus> <Menu id="GeoData_Institute_EMU_Side_Scan_Editing_Toolbar_Conversion" caption="Processing Tasks" isRootMenu="true"> <Items> <Button refID="GeoData_Institute_EMUTool_btnCreatePoints" /> <Button refID="GeoData_Institute_EMUTool_btnCreatePolylines" /> <Button refID="GeoData_Institute_EMUTool_btnCreatePolygons" /> <Button refID="GeoData_Institute_EMUTool_btnNearestModel" separator="true" /> <Button refID="GeoData_Institute_EMUTool_btnMerge"/> <Button refID="GeoData_Institute_EMUTool_btnSymbology" separator="true" /> <Button refID="GeoData_Institute_EMUTool_btnJoinTable" separator="true" /> <Button refID="GeoData_Institute_EMUTool_btnExport" separator="true" /> </Items> </Menu> </Menus> <Toolbars> <Toolbar id="GeoData_Institute_EMU_Side_Scan_Editing_Toolbar_EMU_Sidescan_Editing" caption="EMU Anomaly Editing Toolbar" showInitially="false"> <Items> <Menu refID="GeoData_Institute_EMU_Side_Scan_Editing_Toolbar_Conversion" /> <Button refID="esriArcMapUI.SelectFeaturesTool" separator="true" /> <Button refID="esriControls.ControlsMapIdentifyTool" /> <Button refID="esriArcMapUI.HyperlinkTool" /> <Button refID="GeoData_Institute_EMUTool_btnGroupPoints" separator="true" /> <Button refID="GeoData_Institute_EMUTool_btnGroupPolylines" /> <Button refID="GeoData_Institute_EMUTool_btnGroupPolygons" /> <Button refID="GeoData_Institute_EMUTool_btnDelete" separator="true" /> <Button refID="GeoData_Institute_EMUTool_btnHelp" separator="true" /> </Items> </Toolbar> </Toolbars> </ArcMap> ... View more