mtsini

Guys just to add to the software list. You can also get Geoserver, postgis,geo webcache and openlayers bundled as part of the boundless opengeo suite.

10.2.1 is now supported on Ubuntu Server as well in case your interested

Thanks 3dbu and Lurker, been away for the last few days so sorry that i haven't replied. I do not have any multispectral imagery available so it looks like I will need to try and extract the feature data using the pixel values of the raster mapping. The only imagery i have is orthorectified images which won't be ideal but there I am only looking for a generalisation of the area. Does anyone know of any sources of free landsat 7 imagery or other MSI suitable for Terrrain Catergorisation for Spain, particularly the Soria district? 3dbu if have time would you mind putting a quick guide of how to use the NVDI to extract the info via classification. Its been a number of years since i last did one! I am using ERDAS imagine 9.3 but have access to 2011 if needed. Cheers for all your help.

Hi Everyone. I hope somebody can help me please. I am trying to create a vegetation vector data layer by extracting the data from 50K raster mapping or colour imagery. Because of the large amounts of vegetated areas within my AO I don't want to have to mandrolically digitise. So far my thoughts have been. Convert 50k Raster mapping vector in arc toolbox. This assigns a value to all the feature of the map that have now been vectorised from this I can work out the value that has been assigned to all the vegetated areas and create a seperate feature from this. However my problem is that when you turn the raster into vector it draws a boundary around any map symbology or lettering that was also on the map face. Is there anyway to "clean" this so that I am only left with the vegetated area complete as a polygon? A collegue mentioned that I could use the imagery to use the NVDI to extract the data another way, using Erdas. Having not done this before, does anyone have experience doing feature extraction this way? Any help or suggestions would be greatly appreciated Many thanks