Latest Contributions by larryzhang

M., You may try the tool Free sentence translator, full text translation, message translation, phrase translation, text translation, text transla… However, it is not able to apply coding by Python... Generally,  it is really challenging to use coding technique with the translation tools like Google Translator for automation of language translation from complex languages like Arabia to English. The reasons may include: Machine translations are useful for getting a general idea about what text written in a foreign language means. However, "general idea" isn't always exactly accurate; the translator literally translates (word for word) the text which often results in grammatically incorrect, if not completely incoherent, text... ... View more

Adam, When observing no differences, what are the data sources in the test, i.e., the sample Amberg images or your own airphotos? If your own high-resolution airphotos data, how many tiles in MD? It looks fine with the sample data. Pls check the help resource at http://desktop.arcgis.com/en/desktop/latest/map/web-maps-and-services/using-the-viewpoint-tool.htm ... View more

nice to conduct ESRI GE team for this... please update any progress... ... View more

Without some hard coding effort, it would be challenging, mostly! However, we may look for a third-party or request Oracle building a bridge (saying, GeoEvent for Oracle). One of the reasons is: ESRI is trying to keep GeoEvent database-independent... What do you think of it? ... View more

Sound nice idea. It looks to me that ESRI GeoEvent does not directly map  'live' data in RDBMS like Oracle. However, some of the recommendations from ESRI are offered for reference. Pls refer to GeoEvent process  Oracle/SQL connector ++++++++++ In fact, some of the massive oil producing data (i.e., streaming into Oracle database from massive live sensors in the oil fields) could be mapped in this way, while analyzing big data ... ... View more

S., Are you looking for a 'live' mapping solution without GeoEvent? ... View more

lius, sounds nice! If possible, please share your practice! As an innovative research project in a high-performance computing environment, we are also working on 'real-time' massive raster processing, which is mainly focused on MapReduce-enabled raster color balancing tasks accessing high-performance NAS (hosting massive raw images, which supports Hadoop workflows). One of the goals in the project is 'effectively' to produce high-standard mosaic, including color balanced and also features enhanced ('without interactively-editing operations'), in order to meet operational requirements... ... View more

A., It looks that your request for ‘open sources’ 1:25000 maps is not specified so that no replies are from the community. It is nice to clarify: Does ‘free’ Google Maps, Bing Maps or ArcGIS Online basemaps NOT meet your requirements for ‘open source’?  And/ or the accuracy of those ‘free’ maps is not sufficient for your applications?  Or, are you planning to look for the general ‘free’ vector, raster imagery, or both/ either maps to be 'freely' used in your own applications, including managing in your server? ... View more

Thanks, Sarah, Hopefully, very sooner ArcGIS Pro users can see some innovative 'raster jobs' of MapReduce / Hadoop, in particular, over Mosaic Dataset ... ... View more

Yes, That workflow should work for your case, that is, to update MD (in GDB) in order to minimize the impact (of an online image service). Just make sure that any GP operations should work on 'selected' items... ... View more

To avoid affecting users and applications, better to add new rasters first and then rebuild the footprints of those 4 new additional rasters. And then, select and delete rasters (primary) as follows: [1] When I use the “Remove Rasters From Mosaic Dataset” tool, how would I set up the parameters? (CHECK or unchecked). See the attachment [2]... [3]... If all above OK, go to the next step: [4] select all Overviews under Category, and delete ... [5] Define Overviews and rebuild ... Keep in mind, [1] This general workflow works fine, when you plan to update or append the existing MD.. [2] Please DO NOT delete TIFFs from hard disk until MD is updated successfully... ... View more

Nicholas, To avoid errors, advisable to use the GP tool Remove Rasters From Mosaic Dataset—Data Management toolbox | ArcGIS for Professionals , If you decide to select and delete 'old' TIFFs (or Overviews) from MD. ... View more

Nicholas, Yes, this is very common, when updating the existing/ online MD. The solution to it can be divided into two: 1. Without re-building the overviews:        The new 4 TIFFs can be added into the existing MD, and then build the footprints on those additions of images only. If those 4 new images have same coverage as the old ones, just delete original 4 images with low quality. In this way, when users zoom-in closely, the good images will display correctly. (However, the original overviews with low quality of images still will be visible at low mapping scales. If it is not acceptable, take the second action as follows). 2. Rebuilding the overviews:      Just delete the overviews from the above MD, and then create /build the new overviews again. The above workflow wouldn't affect the online image service (which was published from this MD) that applications and users are using , in particular, the first one. If to re-build the overviews, it is better to do after work hours.. ... View more

To get accurate DEM from LAS cloud points, the first thing is to get GROUND points data. Pls refer to http://sweb.cityu.edu.hk/hongbofu/doc/Deforestation_crv08.pdf As an example, with ERDAS Point Cloud Tools,  the tool 'Filter' (and 'Classify') offer this type of workflow to extract /filter certain class (like buildings, trees, Ground, water, etc) from LAS 1.2 or higher... ... View more