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sv74

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sv74 last won the day on November 18 2013

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About sv74

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    Lecturer

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    Male
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    If you like my post use "+1" instead of polluting thread with "Thank you".
  • Interests
    GIS (general), GIS analysis, RS analysis, GPS navigation, surveying, statistical modeling, pattern recognition, natural resources modelling and sustainability.

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  1. Hi, openwebgis! Nice project! Good luck with it! However, I should mention that you project is not exactly "open" and "free". Yes, it is free from advertisements, but you do not provide source code or even compiled installer (like Geoserver or Mapserver, which ARE free and open-source). Your project simply falls within definition of "free web service" just like those of Google maps or Yandex maps. Please, be understandable of that. Regards!
  2. Thank you for your kind clarification about FME Safe transformers. I will definitely try it. http://fmepedia.safe.com/articles/Samples_and_Demos/Parallel-Processing says: "For 2012, FME has been updated to take advantage of multiple-core processors, which improve parallelization of computations (doing multiple tasks at once) on modern PCs. It also makes use of hyper-threading, a technology used to make each physical core appear as two logical processors to the host operating system. " I agree that QGIS is very good GIS software. Developer version of 2.2 is already x64. Regards!
  3. Thanks for responding. However, I need not to convert between different geodata formats, but to geoprocess the data itself (clip, buffer, proximity, etc.).
  4. Hello, comrades! I have a tough problem to solve Seeking your advice on geoprocessing VERY large volumes of vector geodata. Do not mix geoprecessing (buffer, clip, etc.) with converting between data formats - shp, osm, etc. For example of "large" geodataset you may consider OpenstreetMap Data for entire planet - http://wiki.openstreetmap.org/wiki/Planet.osm "Planet.osm is the OpenStreetMap data in one file: all the nodes, ways and relations that make up our map. A new version is released every week. It's a big file (XML variant over 400GB uncompressed, 29GB compressed)." On these large datasets I need to utilize standard geoprocessing functions (Clip, Buffer, Erase, Select, Find Centroid, Polygon to Polyline). I have server-level hardware (both physical and virtual). The problem is that I did not find any software that is able to process such large volumes of data. All software I tried simply freezes or quits. Splitting entire dataset into smaller chunks that can be processed is highly undesirable. The solution that seems to be in Manifold 8 x64. Manifold 8 x64 (no cure can be found ) utilizes multi-threading technology, so one can use it to geoprocess very large volumes of geodata. If I am not mistaken, this is the only commercial GIS that almost fully utilizes multithreading. Global Mapper 15 x64 is nice but still not enough. Regarding x64 and multithreading ESRI products seems to be almost total failure for many years. A lot of complaints about lack of multithreading on Esri forums. However, "industry leader" is rather slow in reacting to them I suspect that geoprocessing data on ArcGIS Server can be a solution? May be Autodesk or Erdas products can be help too? I believe, that many other forum participants waste a lot of precious time trying to find solution to process large datasets faster and without the need for "split-geoprocess-merge" approach. There is a similar need to process very large volumes of raster datasets and any help will be highly appreciated as well! Regads!
  5. Hello, EmperoR! Glad Gisarea is up and running!However, for 2 weeks I was unable to access gisarea website through ANY regular browser .. It returns "website is not found" I was really upset, since gisarea is excellent website.I thought the gisarea was permanently closed Even Goog..le is unable to search gisarea (searches like "18 december 2012" site:http://gisarea.comhttps://www.google.ru/#hl=en&newwindow=1&safe=active&tbo=d&sclient=psy-ab&q=%2218+december+2012%22+site:http%3A%2F%2Fgisarea.com&oq=%2218+december+2012%22+site:http%3A%2F%2Fgisarea.com&gs_l=serp.3...2885.2885.0.3139.1.1.0.0.0.0.204.204.2-1.1.0.les%3B..0.0...1c.1.KOxC6Z6Rvp8&pbx=1&bav=on.2,or.r_gc.r_pw.r_cp.r_qf.&fp=a256d4f28226d313&bpcl=40096503&biw=1366&bih=631 return nothing)That is why I deleted some of my uploads in gisarea. Fortunately some forum members sent me requests and I resumed my attempts to access gisarea re-thinking that it is alive.. The only way I was able to access Gisarea is some tricky tools, which I will not mention here (to prevent this door from being closed). I am still unable to access gisarea through any regular browser. My conclusions (I do not pretent to be 100% correct):Some registered users (like myself) may be blocked from accessing their registered gisarea accounts by Internet provider and Internet policies in their home country. Or may be some gisarea settings have need to be adjusted by EmperoR to prevent this?As we all realize it is pretty discouraging to invest your efforts in face of a danger of door being shut in front of your own nose..Thank you in advance for your kind clarifications on this matter!P.S. I am aware that Gisarea went through some maintenance, but it seems to be a different issue.
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