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I decided to talk a walk on the wild-side and examined R as a GIS for spatial analysis. I hope to use several of R's spatial statistics packages and to automate tasks--staying within one program. I highly recommend Brunsdon and Comber's book ($50 on Amazon, Paperback, electronic versions also...

Trying to follow the Map Style tutorial, as the functionality of changing color of objects selected is one thing I am trying to add to my project. However, after running the code from the tutorial I get the following error: Tutorial...

<div dir="rtl" style="text-align: right;" trbidi="on"> بسم الله الرحمن الرحيم التاسعة الإجراءات الإحصائية المتاحة في برنامج SPSS: · النقاط الأساسية: · 1- التوزيع التكراري ذو الاتجاه الواحد وقياس النزعة المركزية والتشتت. · 2- دراسة العلاقات بين متغيرين أو أكثر. · 3- تحليل...

التحليل الإحصائي باستخدام برنامج SPSS دكتور : نافذ محمد بركات الجامعة الإسلامية قسم الاقتصاد والإحصاء التطبيقي 2006-2007 الفصل الأول مقدمة إلى النظام الإحصائي spss 1. مقدمة يبحث علم الإحصاء في طرائق جمع البيانات وتحليلها وتفسيرها من خلال مجموعة من الطرائق الرياضية أو البيانية...

بسم الله الرحمن الرحيم الخارطة و التعداد العام للسكان أ‌. د. مـضـر خـليل العـمـر نظـرة عـامـة للخرائط دور تقليدي في انجاز التعدادات العامة للسكان ، فهي تعزز النتائج و تمثلها خرائطيا . وقد اتسع هذا الدور باعتماد برامجيات و طرائق الرسم الآلي للخرائط . بالاضافة الى ذلك ، فقد...

تفسير صورة الأقمار الصناعية احمد عثمان تتحدث وسائل الإعلام كثيراً عن قدرة الأقمار الاصطناعية على دقة التصوير والتجسس من الفضاء الخارجي، وتدعي وسائل الإعلام أن الأقمار الاصطناعية لديها القدرة على قراءة أرقام رخصة القيادة، وهناك روايات عن أقمار تجسس تميز بين وجهي عملة معدنية ملقاة على الأرض، وأن...

I'm new with SQL spatial data processing, so I'm not sure how to solve my task. I have two tables - table with lines and table with points that are located on lines. Lines and points are related by ID value. I need to create another one table with points whee location of points is shifted for...

Thanks in advance for reading this question. I am having serious problems in exporting a map (Google satellite map) linked to Q-gis. Using the print editor I clearly see the part of the map I want to print and also in the right scale, but when I save it as jpeg, the result is:the correct map in...

GIS is typically used to map a utility's assets and create a spatially accurate digital representation of the transmission and distribution network. أكثر...

wrennmusic: Look what I found! #imagery #aerial #GIS #California أكثر...

When the DSCOVR mission was conceived in the late 1990s, one of the central ideas was to provide daily, natural-color views of the entire Earth so that everyday citizens could see it. Seventeen years later, we have that view. أكثر...

Many years ago we received many aerial infrared images. They were developed on transparent film like a slide but much bigger - 20cm x 35cm. If I now take a digital photo of these images, are they real digital infrared images? I am trying to ascertain what level of error occurs when using...

I am adding property names to a property boundary shape file.. I don't know what I have done to get several "qgis rocks" text boxes on my screen. How do I remove them? David أكثر...

I installed my geoServer as a service on port 8080. However, I need to use this port for some other service and have been trying to move it to port 7000 instead but I can't find a way to change the port number. I have tried to add in the option on startup.bat -Djetty.port=7000 and modified...

I am just starting yo use liblas and I had a small issue and I am hoping that you can help me. I have next code to generate a las file with geo-referenced points: std::ofstream ofs; liblas::Header header; liblas::SpatialReference srs; srs.SetFromUserInput("EPSG:4326"); header.SetSRS(srs)...

Using QGIS 2.10.1, I open an attribute table. How do I rearrange the field display order? For example, a table's default display order (from left to right) is State, County, City. But I would like to see them displayed as City, State, County. I'm not interested in rearranging the table's...

Is it possible to style Mapbox vector tiles (Mapbox GL JS) using a feature's attributes? Assuming each feature has an attribute color which is a hex color string, I tried "paint": { "fill-color": function(d) { return d.color } }but received an error saying that a string was expected, not a...

Adaptive scale plot of LAZ format airborne LiDAR of a forest stand أكثر...

I'm working with some small area parcel data. When zoomed in it is important to see the actual polygon shape. But when zoomed out, something like a simple point marker that scales would be better, otherwise the small polygon isn't really visible. Is there a way to dictate this with CartoCSS...

I have downloaded the UK Land Cover 2007 25m raster data set from Digimap (which my university has a subscription to). This works fine but my study area consists of a smaller place than the whole of the UK. Specifically, I am focusing on an area stretching from Wigan to Bolton to Salford down to...