Latest Contributions by thomasdesalle

Hi all, Sorry it is a dummie question. I managed to do something last week and it was really easier... However I've been looking for a couple of hours this morning and I cannot find the solution again... I'm trying to create a mosaic layer with a input of 15 pictures. First of all I don't want to use the mosaic to new raster because it always reinterpolate the pixel of the raster and I want to keep them the way it is and not reinterpolated. I think the solution I find was within the data management toolbox where I was creating a temporary mosaic that I was then able to save as a layer file (I add to set the option to pick up the lowest value if two image were overlapping in order that the white background surrounding my picture will not appear in the mosaic layer). I can't remember what tool did I use. The only thing I find this morning is the tool make mosaic layer. But it ask me as first entry to define mosaic dataset which I don't remember I had to point to anything. I rember I only need to select all the relevant raster and decide which was selected in case of overlap (first-last-mean-min-max...) then a layer was added which I had to save to reopen on other drawing. Any idea what I could do? Thanks ... View more

Hi there, I've been struggling for ages trying to export a layer file (either vector or image to google earth). I have been using Layer to KML export function but the result is always wrong. I'm in the uk so the original layer is in OSTNO2 coordinates. I've try to export to different coordinates system but it's always out on the same location wrong by a few ten's of meter. As you can see below my outline should fit within the field and not be on the road!!! I've attached a zipped folder which contain the layer file, the origin shapefile and the kml exported. After trying for ages I gave up thinking that there is some projection incompatibility between ArcGIS and google earth and I was surprised to find no solution on internet of a problem that I imagine would be very common. But this week I had a demonstration from a sales man working for trimble. We processed some GPS data using Trimble Business Office. And by a simple clic, all our data within TBO were display on google earth with very good accuracy. So this let me to think that they MUST be a way to do the same with my layer and shapefile in ArcGIS. I would be greatfull to hear if you have the same issue or know how to solve it! Thanks ... View more

Hi all, I need to populate a field with sequencial numbers. I could go the easy way and input in the field calculator: FIELD = 1+ [FID] But I want my data to be first sorted so what i would like would be more something like 1) Sorting my data 2) FIELD = ROW And so once sorted the FID is not relevant to the row number... I've read things online and it seems that autoIncrement is my solution but I can't seems to have it working. Here is the code I got from the help: Expression: autoIncrement() Expression Type: PYTHON_9.3 Code Block: rec=0 def autoIncrement(): global rec pStart = 1 #adjust start value, if req'd pInterval = 1 #adjust interval value, if req'd if (rec == 0): rec = pStart else: rec = rec + pInterval return rec Here how I input it: Here's my error message: My field i'm trying to populate is called label and is a short integer. Any ideas? ... View more

Hi All, I use Arcmap 10.0 on win7 32bit. I have a small problem. I've manage to attache some field to a point shape file and manage to get the html popup to display almost what I want: -a few info as text -a couple of picture -an hyperlink to external pdf or world document (this is not working) See the picture of what i already have. NB: If i go through the "identify option" or the "hyperlink function" the link work but I wonder if it could also work within the html popup this would be nicer for the people I will pass the project on and which are not use with GIS... Let me know if there some miracle solution! Thanks ... View more

Hi there, I have a problem I can't sort out. I've applied the same methodology succesfully in the past but can't seems to find a solution this time. I had 5 pictures that are not touching each other, however I have merge them to a single png. My problem is that the background is black and I would prefere transparent. I can't select the symbology as black being transparent because the picture is a black and white so it would removed all the black. Here is what I get: So decided to use a polygon shapefile to clip to the polygon (orange) (ticking the box "use input feature for clipping geometry") Then i get to either: -if I don't change the output file and it go straight to the database, it take an hour but seems to sometime work but then If i rexport a shapefile the black background came back -if i choose a layer I want "image_clip.png" also try jp2 and tiff... the computer do things for hours and never finish the output also it has create "image_clip.png" but this one is clip but all black inside the boundary. Any idea what am I doing wrong? Why do I get an output when it go to the database but nothing when I select my own output? Here is what I would like to get but I want some shapefile and not something integrated within the database. Hope this is not too confusing. Thanks Using Arcgis10 on win7 32bit. ... View more