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i have got a lot of Point-Shapefiles (r20010101.shp, r20010202.shp, r20020101.shp...).Each of them has the same amount of points at exactly the same location. In a column that is named after the Date e.g. "D20010101", where i have got unique Values for every Shape file. What i want to do now...

ArcGIS Pro*represents Esri’s strategy for creating modern GIS desktop software that tightly integrates with the entire ArcGIS Platform.* ArcGIS Pro 1.0 was first released in January as a tool for visualization, supporting both 2D and 3D; analysis, containing the vast majority of the...

Based on blog and github stats, the bootstrap map viewer templates that I talked about in a previous post seemed to be the my most popular repo and 2nd most popular post of all time respectively. I'm glad you like it :) But to tell the truth, I have since found something significantly better...

The nameof operator is awesome! Now even your string constants can be codified! Between the nameof operator and localized string resources, you don't have much excuse anymore to use naked string literals. أكثر...

I am trying to download the polygons for the Umweltzone Heidelberg from OpenStreetMap using QuickOSM in QGIS. I queried by name as shown in the screenshot: The corresponding OSM script looks like this...

I want to add a point to a point shapefile. I place the cursor in an empty field. The strange thing is that the point of the point shapefile that is nearest to the cursor is highlighted. If I click the mouse cursor in the empty field a new point feature is added on top of the highlighted point...

I have a spatialite database I created that spans several years of crime data. To facilitate a real-world scenario where I may simplify the interaction for a user by introducing a View that simply limits the time span or what types of crimes are returned, I want to know if it is possible for...

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I'm new in programming . i'd like to write a simple code that can create offset from a polyline . i wrote the below code but when run the code i encounter to the error " Null reference exception was unhandled by user code" in line construct.ConstructOffset(pfeaturelayer as IPolyline, 100.3 ...

I would like to merge two raster into one image. Both rasters have value range different from each other. On one hand, the values range from (Image 1) 21.5 to 15.7. One the other hand are 18.15 to 13.3 (Image 2). Image 1 is found outside of Image 2 and they do not have overlapping areas. But I...

A year on, the reference conference of the gvSIG Community and one of the more relevant events about free geomatics at an international level will take place. The 11th International gvSIG Conference will be held from December 2nd to 4th … Continue reading → أكثر...

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I have a layer with several polygons, each of which has data in over 100 fields. I need to create a new layer with all the same polygons, but with all their data fields blank (set to 0, Null or empty depending on the field type).Is there a quicker way of doing this than pressing delete on each...

How can I show the flow coming from an Origin-Destination matrix as desire lines?I need a result like the one in the picture below. I need to scale them proportionally to its value (coming from a linked MDB) and I like that the lines are a bit curved (but I can use straight lines too)...

السلام عليكم ورحمه الله وبركاته اعضاء المنتدى الكرام يتشرف مركز الخبرة الحديثة للتدريب والاستشارات دعوتكم للتسجيل بدورة مهارات إدارة المشروعات... أكثر...

I'd like to run a big list of IP addresses through geolocation and then display them on a map, most preferably an OpenStreetMap one. While geolocation will probably be easy using GeoIP, I'm looking for a free offline project that would allow me to visualise the GPS coordinates. How could I do...

I know there are some questions out there already. I'm looking at a fresh approach. I found the gtfs2pgrouting project from pgRoutings' GitHub page. But it's three years old and doesn't work with the (current) full GTFS specification as it looks. First of all I would like to know if...

I am using Openlayers 3 and I want to have a hover effect of a polygon layer below the top layer with labels. I can arrange the order of the layers that the labels are on top of the polygon, but unfortunately, the hover effect (pointerMove) jumps on top of the labels. Is there a way to realize...

I have: A remote SQL server (2008 R2) that I have access to (But NOT full control of) which contains my source data including OSGB 1936 Geometry [ESPG: 27700] In house SQL Server 2008 R2 A Crystal Report Automator in house that allows me to send multiple variants of a report in PDF format to...

What is the best way to filter shapefiles data in R with dplyr and then put it in a leaflet map not reproducible example sorry: library(dplyr)library(leaflet)library(sp)library(maptools)library(rgdal)lines400,Y=="YES") m = leaflet() %>% addTiles()m %>%addPolylines(data=lines,col="blue")do I...