Latest Contributions by AxelThomas

I need to recreate the functionality of the link table in the georeferencing toolbar. I have sets of ground control points (usually between 5 to 30 gcps for an image) and need the resulting RMS errors for a given transformation - there is no need to actually rectify the images. I have trouble understanding the DefineFromControlPoints Method. The documentation says. 'Defines the best affine transformation between two sets of points' but the arguments are defined as        ByRef fromPoints As IPoint which I understand is one point, not a set of points. This sample (rather old, but one of the few available I found) http://edndoc.esri.com/arcobjects/9.1/ComponentHelp/esriGeometry/DefineFromControlPoints_Example.htm states pAffineTrans2D.DefineFromControlPoints 4, pPtFrom(0), pPtTo(0) which appear to be single points from a point array, so again actually only one ground control point. I am confused... So again my question: can anybody show me how to use a set of points with DefineFromControlPoints ? Any help is appreciated! Cheers Axel ByRef fromPoints As IPoint ... View more

Hi all, when georeferencing a raster data set the standard link table saves only coordinates. Residuals and errors are shown but are not saved in the link table. Is there a way to export a link table including RMS errors? Thanks in advance Axel ... View more

Hi, I am converting VBA code to a 10.2 addin. The code contains several context menus that are populated with IcommandBar.CreateMacroItem calling various different routines. Called with a left click from from OnMouseDown the context menus are displayed but when I select an entry from the context menu I receive the following error message: This method can only be called for built in commands (or at least how I'guess how it should be translated from my OS message). My code looks like this:   Sub CreateContextMenuExample()     Dim mApp As IApplication = TryCast(Me.Hook, ESRI.ArcGIS.Framework.IApplication)     Dim commandBars As ESRI.ArcGIS.Framework.ICommandBars = mApp.Document.CommandBars     Dim pCMenuBar As ICommandBar     Dim pCmdItem As ICommandItem     Dim sContextMenuName As String = "time period"     Dim sPeriod()     Dim sTitel As String     Dim sMacroName As String     Dim j As Integer     sPeriod = {sContextMenuName, "period 1", "period 2"}     pCMenuBar = commandBars.Create(sContextMenuName, esriCmdBarType.esriCmdBarTypeShortcutMenu)     For j = 0 To UBound(sPeriod)                                   '       sMacroName = "View.BVE.Period" & Trim(j)                                        'in VBA used to be "Project.ThisDocument.period" & Trim(j)       sTitel = Trim(sPeriod(j))       pCmdItem = pCMenuBar.CreateMacroItem(sTitel, j, sMacroName)     Next j     pCMenuBar.Popup()   End Sub I do not see any information in the documentation that ICommandBar.CreateMacroItem functionality has changed and works only with built in commands - and my code worked perfect in 10.0 VBA. Did I overlook something?  Any help is appreciated! Cheers, Axel Well, it appears that CreateMacroItem only works for VBA code... I do however not see how the same functionality could be obtained with .NET code. ICommandBar.Add requires an UID while want to start my own 'macros', that is sub routines with different, specific tasks. Any ideas on that would be extremely helpful! Cheers, Axel ... View more

Hello, I am georeferencing scanned historical maps (RGB-tif). After rectification the images show spurious nodata pixels, usually the darkest parts of inscriptions. In the original file these pixels are not tagged as nodata so somehow during the rectifying process ArcGIS 'decides' to set these pixels to nodata. I have tried different options in the rectify menu but to no avail. To make things more clear I have attached two images: original_nodata_red shows the original file with nodata set to red to demonstrate that there are no nodata pixels.  In georef_nodata_null spurious nodata pixels are set to null to demonstrate how pixels have been tagged as nodata by ArcGIS  in the georeferenced image. As I have to set the wedges outside of the georeferenced image to null I need to be able to set nodata pixels. Is there any explanations why this happens and of course - any idea how to prevent it? Any ideas welcome! Regards, Axel ... View more

Hi all, I am building a terrain from more than 10 individual overlapping low-resolution point data sources. In one region a smaller high-resolution data set is available so I intend to replace the low-resolution data with this data set locally. The 'replace terrain points'-command however allows only to replace one data set by another. If I were to replace all of the low resolution data sets (which all have data points within the extent of the high-resolution data set) in this way I had to run the replace-command several times and would add the high resolution data set just as often. In the future input data (both low and high resolution data sources) will be updated rather frequently so the approach to delete low-resolution data points prior to inclusion into the terrain is not an option. Weights for input data would be a good solution but this is obviously not implemented in the terrain concept. I guess this is a problem that occurs rather frequently so perhaps anyone has some advice on how to handle it - any ideas are welcome! Axel ... View more