Kosmos of G.I.S.

I have a friend who is dealing with few DGN Microstation files and asked me if I am able to convert them to shapefiles for him. He said that the forum was not very helpful and I thought to myself, that the conversion should be something very straight forward because you are able to look DGN files in ArcCatalog.

The thing is though that he needs each of the DGN layer names to control them as a separate shp file. 

hmmm;

I have never worked with DGN files but I found that script from the Forum but I can’t figure out how it works.

Could you please help us out?

You have been wondering how you can export your map in pdf. Here is the solution.

Personally, I wanted  to view the map layers on and off in the pdf couple of months ago, and I didn’t have a clue how I can do it.

So, this is definetly the tip of the month!

DEFRA (Department of Environment, Food and Rural Areas) under European policy on Environmental Noise, has completed a project on mapping the areas that are affected from the Environmental Noise. More….

I had a long time since  my last post about my adventures in GIS. Well here is one;

I thing spatial join in ArcGIS is one of the most important tools and actually, is the most obvious processes that a GIS (system) can do.

The last few days I am processing a big in size personal GeoDBMS….Imagine about 1.3GB of data in one feature dataset (points).

 My question was easy enough and the way to solve my task was pretty obvious. The task was to spatially join 250 lines with the nearest points of this big dataset and return the [zyz] whatever fields from the points to the lines. Easy?

Yes. So, I load all my data into ArcGIS system 9.1  and started the procedure to do my spatial join and clicked ok. Oh my Lord….

It took me more than 2 hours to get the results from my join and at the end the fields have not be populated.

I can understand why ArcGIS is struggling to carry out these operations;… note that my machine is considered as super fast PC as well.

So, I had a look at the ESRI forums about performance issues. I did find some answers and I want to have some feedback or advice from you on how you can improve the performance of spatial join, in particular.

By the way, This is what I found regarding performance tips and tricks from ESRI: http://support.esri.com/index.cfm?fa=knowledgebase.whitepapers.viewPaper&PID=43&MetaID=293