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I need to update my new field/column (Property Type) with either "detached", "semi", or "terrace" depending on an existing column (Property Count): where the count = 1 I need to populate Property Type with "detached" where the count = 2 I need to populate Property Type with "semi" where the...

How do I convert a text file with point coordinates to database tables in the Dbase.dbf format in Python? I am using ArcGIS Desktop. أكثر...

تغيرات الامطار فى محطة شحات   اعداد سعيد نوح إدريس قسم الجغرافية / كلية الاداب جامعة عمر المختار حقوق الطبع والنشر تنويه : هذا الموقع لا تخزن أية ملفات على الخادم ولا تقوم بالمسح الضوئ لهذه الكتب. نحن فقط مؤشر وصلة المحتوى التي توفرها المواقع والمنتديات الأخرى. يرجى الاتصال لموفري المحتوى على...

I'm trying to calculate the distance between to geographical points, but the calculated distance is bigger than the real one (from Google Maps). The location column in postgresql is define as geography(Geometry,4326), and the query is: select ST_Distance(u1.location, u2.location) For...

I want to create a Human migration map looks like this http://postimg.org/image/an217oxh9/ or http://postimg.org/image/6ryn54ebh/ using QGIS, but don't know how to that because arrows available in QGIS are straight arrows while I need curved arrows. What plugin should I use to have such curved...

PostGIS 2.2.0 came out this month, and the SFCGAL extension that offers advanced 3D and volumetric support, in addition to some extended 2D functions like ST_ApproximateMedialAxis became a standard PostgreSQL extensionand seems to be a fairly popular extension. I’ve seen several reports on GIS...

I have wind raster datasets for the U.S. that are organized by state and I would like to merge these datasets to get one map of the whole U.S. I am new to using ArcGIS and through some research I found out that I can do this with the Mosaic To New Raster tool. The problem is that even though I...

I am trying to clip polygons from a buffer in Q GIS. However, polygons that fall entirely into the buffer are not showing up in the newly created vector layer. Please help. أكثر...

I want my script to perform actions on a particular layer. Online advice I've found so far suggests using the iface method "setActiveLayer()". Makes sense based on the name alone. Scenario: In the Layers window I have a layer named "Province" highlighted (active). Then I run the following...

I'm fairly new to using PyQgis, so sorry if this question is basic. I'm working with two vector layers: (layer 1) A series of polygons, each with an ID field specifying what geographic district the polygon is in (layer 2) A series of points, also with the same ID field as above I am trying to...

I have dozens of point shapefiles I want to merge. First I used the Feature Classes Iterator and declared the iteration output as input for the merge tool directly, the problem was that it merged the output files with themselves and the result was only the last shapefile from the folder. What I...

I imported a layer in geoserver using ImageMosaic.Howerver, in the layer preview the layer is blank, until I zoom in.If the scale is 1:44M, the layer is blank, and if 1:22M the map is shown perfectly. أكثر...

I am just starting working with mapbox and have a question. I want to know if I have access to information from the baselayer, for example within a map view to get a set of all objects of type park, so I can do some analysis with them. I am using Mapbox Studio and I see I can modify css...

Where can I download historical data from OpenStreetMaps? I am interested in downloading an OSM .pbf file of a particular city in previous years (say, from 2008 and 2010). أكثر...

سلام ..... من arcgis 10.3 رو نصب کردم ول أكثر...

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معنا اليوم برنامجين من أفضل البرامج المجانية لتصميم الديكور، فمن خلال هذا النوع من البرامج تستطيع إنجاز عملك والإنتهاء فى وقت أسرع بإختلاف برامج التصميم الأخرى كـ الـ 3ds Max أو Cinema 4D بالطبع نحن لا نقلل من شأن هذه البرامج بل بالعكس تعد هذه البرامج صاحبة المجال الأوسع والأدق فى تصميم الديكور...

I have used PostGIS raster to store data in database. This data needs to be updated several times a day. So far I am using approach with this query: UPDATE data_tbl SET raw_data = (''::raster) WHERE id = 1; are my raw data converted to WKB using code from PostGIS WKB I can also change only...

هيئة المساحة الجيولوجية السعودية تصدر الطبعة الاولى من كتاب :المملكة العربية السعودية ...حقائق وارقام نقدمه بين أيديكم. قراءة الكتاب تحميل الكتاب نقترح عليكم مما تم نشره عبر Facebook توظيف GPS و SIG في إنشاء خرائط شبكة النقل الحضري نموذج مدينة فاس...

A map of Middle-earth annotated by J. R. R. Tolkien has been found. The map, found among the papers of illustrator Pauline Baynes, who died in 2008, was used by Baynes while she worked on a full-colour map of Middle-earth published in 1970. Tolkien's annotations appear on the map in green ink...