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I often need to show grading for roads and ditches. This is what the map readers require and what the standard symbology for grading is. These 3D lines can be easily created in AutoCAD civil 3d and similar software but I would like to, if not create the same, then at least emulate these grading...

ArcMap Info Lic, 10.2.1. I am creating a tool in Model builder that will be used on arc online. The user will be able to enter a lat/long in a filed and plot the point. I was going to use field calc to update these fields with the users input, but don't want them to have to enter a double quote...

Just wondering if there are any thoughts on good tutorials for setting up a geodatabase and topology for point and line features using PostgreSQL Esri and QGIS. I have made a number of attempts with some tutorials I found but either they are referencing an older Postgre and PostGIS version and I...

8:30am: You just hopped in your car for a quick dash across town to make that 9am appointment. 9:15am: You are still sitting in bumper to bumper traffic, watching as pedestrians hurry past and cursing the decision to pick up the car keys. 9:25am: Finally arriving at your appointment, you...

Cartographer Daniel Huffman, whose work I posted about a few times on The Map Room, has created a map of Lake Michigan in which the lake's shoreline has been unfurled into a straight line. "I made this map because I wanted to show space referenced against a natural feature, rather than figuring...

An insight into citizen engagement with the help of public maps “The time, cost and resources required to deliver these projects was considerably less with GIS Cloud than would have been using previous systems.” – Josh Forner, City of Darwin In the light of our current Map Portal special...

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How to read metadata file parameters( like sun elevation,REFLECTANCE_MULT_BAND etc ) from the user interface or from R How can end user validate the parameter of metadat file(.mtl) أكثر...

QGIS 2.8.3/Windows. I'm trying to use the area of a paddock as its label. The layer is a shape file containing a single polygon. In Layer Properties/Labels/Label this layer with I define an expression: concat(tostring(round($area/10000,2)),'Ha') The preview correctly yields 4.67Ha but canvas...

I have 50 near tables that I want to append, so I can export them at once. However, when I use the append tool an error comes up saying that the near tables are 'read only'. Is there anyway to make this append possible? أكثر...

I might be able to work this out myself but I am in a bit of a deadline rush and thought about posting this here with the chance that somebody has dealt with a similar issue before. I am using ol.source.Cluster to create themed maps. I want to show an inset map with of the biggest cluster in...

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Tropical Storm Joaquin, east of the Bahamas, strengthened into a Category 1 hurricane. أكثر...

My work environment consists of multiple file geodatabases, on a number of shared network drives that can be accessed by multiple users at a given time. When I try to push out updates to feature classes or feature datasets, I get "locked by user" on many occasions. I do not have SDE so was...

I use the following code to check if a point feature is within a polygon feature pFeaBlock is a polygon feature and Fea is a point feature int blockID = -1;IFeatureCursor pBlockCursor = this._blockLayer.Search(null, false);IFeature pFeaBlock = pBlockCursor.NextFeature();while (pFeaBlock !=...

Modern technology has dramatically increased the pace of software application development. Within hours a single person can now conceive, create and distribute an app to millions of people. Thanks to the global internet, access and updating of these apps occurs automatically and constantly...

Very interesting research has been published in Nature magazine. Researchers created the most detailed map of forests around the world. All the previous attempts to estimate the number have been done based on satellite images. The number of trees around the world was estimated at the level of...

Goal: Use python script to find overlap between various shapefiles in folders Inputs: folder 1 with multiple shapefiles and folder two with multiple shapefiles Method: #First intersectionfolder1_shp1 = "C:\..."folder2_shp1 = "C:\..."arcpy.Intersect_analysis(folder1_shp1 + ";" +...

I was asked to do a blast scenario for a natural gas compressor station. They need pressure rings to determine risks to surrounding structures and atmospheric gas plume. I am not sure how or where to start. I was hoping that tools or models have already been built for similar scenarios...

I would like to use a MAX SQL query for a column in a definition query, where there records that are being queried are the MAXIUM from the field UPDATE_DATE_DATE while grouping by the field NUMBERCYLA. I am using this in an an SDE enabled geodatabase on SQL server 2008. Here is what I have so...