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I have polygons which stores different z values as vertices in Arcgis. I want that all z values must be equal to zero. Hoe can I make this possible?? أكثر...

Bonjour, Je teste en ce moment Qgis-Server et Lizmap. Je suis assez enthousiaste mais j'ai quand même du mal à faire marcher les différents plugins. En localhost sur Windows 7 j'ai fait l'install OSGeo avec : - Qgis-Server 2.10.1-1 / Lizmap 2.11 / Qgis 2.10.1 (Pisa) ou Qgis 2.8.3 (Wiem) -...

Bonjour, je travaille actuellement sur le logiciel Qgis et je souhaiterais savoir où trouver un fond de carte gratuit incluant à la fois la France métropolitaine et les 5 régions ultramarines. Sur le site de l'IGN, on dispose de la carte de la France métropolitaine et de 5 autres cartes...

GeoSetter is a freeware tool for Windows (XP or higher) for showing and changing geo data and other metadata (IPTC/XMP/Exif) of image files (e.g. images taken by digital cameras). Reads and writes the formats JPEG and TIFF as well as camera RAW formats DNG(Adobe)...

I'm trying to create a shape file of a state. I have a map of US zipcodes that I downloaded from the US Census and I want do create a shapefile of zipcodes in Florida. I ran this query which produces a shapefile that I expected, however when I examine the attribute table in QGIS, I see that...

I am very new to ArcGIS Pro and I have loaded a SHP file with polygons and associated 'scores'. I would like to create a heat map based on these values e.g. a value of 1 would colour the polygon red, a value of 5 would colour it orange and a value of 10 would colour it green. I would be...

I'm trying to create an mxd that can dynamically create and name group layers, and populate them with various feature layers. I've seen some examples of how to do this, such as : Creating empty group layer within existing group layer using arcpy.mapping? The basics seem to be: reference an...

This GIS Knowledge base*video describes how to use PostGIS spatial extensions with PostgreSQL*relational database using QGIS. You can see the live online version results of this map here :*qgiscloud.com أكثر...

I am working under c++ with the qgis API 2.8 In order to make different operation on a canvas like personnalized rotation or selecting a region for zooming, I had to catch different signal like rightclick, leftclick, clicked or dblclick. Do you have any idea on how can I proceed to do that...

Is there a (current) best practice to simplify ways? I have found: https://github.com/podolsir/osmosis-simplifyways But besides not being alive, here (http://permalink.gmane.org/gmane.comp.gis.openstreetmap.devel/26854) it says: Ok, I found out that osmosis-simplifyways is not...

I have an Oracle Spatial table (in 12c) with a polygon geometry type. I added a text column to the table that I would like to populate with the well-known text of the polygon's centroid. In concept this is really simple but I'm having trouble using the SDO_CENTROID function properly. This is my...

When contemplating the site of the “Born Centro Cultural” (Born Cultural Centre) in Barcelona, you can imagine daily life in Barcelona in the late 17th and early 18th centuries. It's like walking the streets of the city that resisted the siege of the troops of Felipe V (Philip V) until its...

I'm starting to play with satellite imagery. In particular, I am using images of the Landsat 7 and Python. I Open two images (.TIF) of the same place but at different times to the Numpy arrays and have the problem that they have different shepe. import numpy as npimport rasteriowith...

I am using the QGIS Cartogram plugin, but unfortunately something is not working as it should. First, the demo works just fine. But when I want to create a cartogram with my own layer. But as soon as I click „ok“, it says "Cartogram creation cancelled by user“. Do you have a clue, what I'm...

I finished to create my pluging and i compile it; I have : Myplugin.py, Myplugin_dialog.py, Myplugin_dialog_base.ui 1- Is it in the Myplugin_dialog.py that i suppose to create new functions and add signal/slot for the components of the dialog ? 2- How can i call the components, for exemple a...

I have two Google map objects on my page: 1) height: 121px; width: auto; (This is the smaller map). 2) height: 770px; width: auto; (This is the larger map). Both of these maps have the same length polyline on them. They both also have a symbol which I repeat at the same percentage value...

apt-get install python-gdal installs version 1.6.0 and this is already installed. I would like to install the 1.9.0 version. Do I have to de-install 1.6.0 first and then compile manually or is there an apt-get package that I have missed? thanks for any help, Rob أكثر...

by Jennie Saxe At your local wastewater treatment plant, *professional *operators not only use precisely-dosed treatment chemicals, but they also utilize mother nature – a diverse community of microorganisms – to successfully treat the wastewater that’s collected. *While wastewater treatment...

استخدم مصطلح الاستشعار عن بعد لاول سنة 1960. هو قياس او الحصول على المعلومات لبعض خصائص الظاهرات في جهاز تسجيل لا يحتك مباشرة بالظاهرة التي ندرسها ,وهو عملية جمع البيانات في الموجات ما بين فوق البنفسجية الى نطاق الراديو. اهمية الاستشعار عن بعد تظهر اهمية الاستشعار عن بعد بجميع انواعه...

نظم المعلومات الجغرافية (Geographic Information Systems)، هو نظام قائم على الحاسوب يعمل على جمع وصيانة وتخزين وتوزيع وتحليل وإخراج البيانات والمعلومات المكانية. وهذه الأنظمة تعمل على جمع وإدخال ومعالجة وتحليل وعرض وإخراج المعلومات المكانية والوصفية لأهداف محددة. وتساعد على التخطيط واتخاذ...