Latest Contributions by XanderBakker

You might try the txt2las utility from LasTools: http://www.cs.unc.edu/~isenburg/lastools/ Indeed Clayton is right, the LAS tools by Martin Isenburg are a great resource for converting ASCII files to LAS (and for a lot more). It would be nice though if Esri would get in touch with Martin Isenburg and include some of this functionality in ArcGIS, in order to avoid the command line usage. BTW I used the command below to convert a PTS file to LAS which was successfully converted to LAS dataset and visualized in ArcScene: txt2las -i Vopak023col.txt -parse xyzsRGB -skip 1 -o vopak023col.las -set_version 1.2 I wasn't able to import the intensity (4th column) since the value is out of range... ... View more

Great fix, works like a charm! ... View more

Hi Richard, That is an interesting case you have here. I�??ve tried to do it also and get the same result you have. Apart from the wrong order, and the missing points, ArcGIS seems to invent its own point locations! When you zoom to the lower left corner of the data, you�??ll see that the a vertex of the created line is between the points with FID 31 and 32. This happens at several locations. I tried a workaround the sort order by adding X and Y columns and exporting the table to DBF. In Excel I sorted the data on the GPS_second field and saved the file. After adding it to ArcMap, I created XY Events and exported the layer to a featureclass (in a FGDB). Using this point featureclass in the Points to Line tool resulted in the proper order of the points, but still there are points missing and new locations created. I seems to be related with the coordinate system. If you project the points to a projected coordinate system (like NAD_1983_UTM_Zone_15N) and then use the Points to Line tool, it will honor the sort field and the locations. In 10.0 the results is correct (locations and sort order). The underlying script has been rewritten in 10.1 beta to implement the new da (data access) module. Apparently, there are some situations where it is not working correctly. Esri should look into this! Cheers! ... View more

There are several websites that provide LAS files. I have tested ArcScene 10.1 beta with some of the LAS files located at http://liblas.org/samples/. LAS file "2398_400.las" contains RGB values. Alternatively, you could use software to convert your text files to LAS. I have installed LP360 (30 day evaluation) and it can convert text files (like PTS) to LAS. Make sure to choose LAS version 1.2 in LP360 to enable RGB. Good luck! ... View more

Xander, RGB is only supported in 3D, so try it with ArcScene. Thanx, Joris. That did the trick! ... View more

Currently temp files are being written to c:\temp and there is not enough space on this drive. Hi, First of all I think it would be a good idea to clean up the temp folder. Probably your OS will also use the C drive, and having little space left will make your system very slow. How can I set where the raster calculator stores temporary files? If you are using any geoprocessing tool you can select the option "Environments..." in the "Geoprocessing" menu. This will open the Geoprocessing Settings dialog. Expand "Workspace" and change the values for Current en Scratch workspace. Current workspace is where all results are written. Scratch workspace is the location where temporary storage of intermediate results takes place. In Python you could also use: import arcpy from arcpy import env env.workspace = r'C:\Project\ArcGIS94beta\AHN2\AHN2.gdb' env.scratchWorkspace = r'C:\Project\ArcGIS94beta\AHN2\AHN2.gdb' You can also create a new geodatabase on the drive you want to use (through ArcCatalog) and then rightclick on the gdb and select the option "Make Default Geodatabase". Kind regards, ... View more

I have been rather critical regarding the procedure that needs to be followed to report a bug from overseas. Indeed it would be faster if one could directly report to ESRI inc and doesn�??t have to go through the local ESRI distributor first. There is however the aspect of data related problems. The local distributor will have more knowledge about the datasets used than ESRI inc and in my case ESRI NL is an efficient organization. If they can discard it being a data related issue, they can forward it to ESRI inc. That�??s what happened here and all occurred within a 24 hour time frame. It still leaved the issues (bugs) that can be reproduced regardless of the dataset used. It would be more efficient if these cases could be reported directly to ESRI inc. 😉 The involvement of ESRI on the beta forum is much higher than on the normal ESRI forums. In my humble opinion they are taking this very seriously and doing a good job�?� Kind regards, ... View more

I reported it to ESRI INC support, they forwarded it to ESR NL. ESRI NL was able to reproduce this issue and will report it back to INC again. 😞 I do wonder why such a simple to reproduce issue, which in fact is country and dataset independent, has to follow such a large route to enter the system. Can't say this is the most efficient way. Hope you might look at these procedures in the future to make contributions from over seas a bit easier... ... View more

I have tested a very simple expression to determine if an input raster contains NoData. This should result in a raster containing 0 (false) and 1 (true) values. It seems that the "is null" function using arcpy dot sa yields 0 and nodata while using "is null" from arcpy dot gp returns the desired 0 and 1 values. See the attached image. Why are there two 'identical' functions resulting in different outputs? ... View more

In the previous version the Single Output Map Algebra and Multi Output Map Algebra tools were included in the Map Algebra toolbox. In 9.4 the toolbox still exists, but there are no tools inside. :confused: What I find strange is that within the Python window the SingleOuputMapAlgebra and MultiOuputMapAlgebra functions exist (although the help windows states that help/gp/xml file for this function is missing). I wonder what ESRI wants with this functionality within Python (what will it add)?:confused: I don�??t work with the Raster Calculator all the time, but for some projects I have to dig into it for a few days or weeks and then I don�??t use it for some months. For me too it was quite a shock that the Raster Calculator no longer exists in 9.4. However, after working with it (intellisense) and having seen the geoprocessing videos (http://resourcesbeta.esri.com/content/geoprocessing-video) I do see quite some advantages.  :cool: Although, in some functions intellisense is not completely implemented (would like to have the neighborhood options to be shown as a list in the FocalStatistics function :rolleyes:), you must remind that the syntax of expressions in the Raster Calculator including floating data required the usage of spaces around brackets and stuff like that and help on syntax was not directly available. On the other hand, I do agree that these advantages may not easily be adapted by the infrequent user. In another thread I read about the wish to include the Raster Calculator and this might be a nice addition , since simple things (> <) work differently in Python. ... View more

Yep, that must be the reason. My input data type is floating. Thanx! ... View more