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I'm quite a newbie in GIS. I need to compute (without using any existing lib/tool) the longitude & latitude (WGS84) corresponding to the a pixel, inside a (georeferenced) map image. I know: the x,y coordinates or the pixel, the width & height (pixels) of the map image, the bounding box...

I'm using a zip code listing, and I am curious to know how many (or which) zip codes map to more than one US state or US city? For instance I know that 42223 resolves to the same city which straddles the KY-TN state line. BTW googleapi only returns the TN city for that zip oddly enough...

I have two shapefiles. One is the DMA and another of states. What I'm trying to do is to draw a state boundary on DMAs (which can cross state boundaries). I've asked this question and I recieved an answer, which solve the problem but then I noticed there are duplicates in the polygons. Below is...

ArcGIS Earth We are pleased to announce that the beta version of ArcGIS Earth is now available for download on the Esri Early Adopter site.* You may access the beta directly at this link: http://j.mp/EAE1Beta By using the beta version, you will be among the first to test-drive our new 3D app...

Imagery is essential to understanding environmental change. Today, imagery is becoming even more valuable as new methodologies emerge to minimize change detection errors from sensor and seasonal variations that cloud our understanding of true change on the ground. A recent webinar, The Art and...

What is the difference of using esri/geometry/geometryEngine distance method and GeometryService length method? Which is faster and capable of calculating distance on Mouse Move event on client side in JS API? أكثر...

i have problem with my json of delete feature form Applyedit Jason on the arcgis server Json. Here my code. delMaintData: function(){console.log('Bri'); var maintTable = new FeatureLayer(this.dataSelect.get("value")); console.log('layer',maintTable); var...

I have a feature class in an SDE where metadata has been loaded via the 'Load XML Recordset Document' option of the feature class. When viewing the item descriptionof the feature class, the metadata appears (which is what I want), such as: After I publish the feature class as a Feature Access...

I am using PostGIS to find the features that intersect between two layers. I am also using QGIS with the MMQGIS plugin to double check the intersection. Here is the intersect that PostGIS is finding: The Yellow layer is the bounding box. Postgis only returns the red feature, which is not...

I have a feature class (line) that include street and parking lots. How would I create it so that wherever the parkinglot touches the street - it creates a merged drawing (so it doesn't look like there is a wall there instead it flows through)? Picture of what it looks like now is below...

I recently earned a certificate in GIS, and I was told my another student that staffing companies can often match you and up with temporary work. Does anyone have any experience with staffing companies? أكثر...

Next semester is my last at university. I have taken all 3 of the GIS courses offered in my program. Besides some very light interaction with Python though, their has been zero discussion of programming. This has left me feeling unprepared to enter the job market- especially because when I...

I just installed qgis (and all the dependencies, etc.) on my Mac OSX 10.10 via homebrew. Currently, I use both Python 2 and Python 3 on the machine. Whenever I change the Python path [to open qgis], I can no longer use Python 3 in any of my py3 virtual environments until I unset the python...

I am trying to use the markers.refreshClusters(); function to refresh the marker icons for a new styled icon I am trying to work with to highlight the selected cluster. Unfortunately, I keep getting the markers.refreshClusters is not a function error. Is there a file I am missing for the marker...

Hi all: following the suggestions of a thread here and several others, I made a set of points in order to split polylines at specified intervals. In order to do this, I used linear referencing to turn my lines into routes. Then, I exported the attribute table, divided each length by 5, and set...

I have a large collection of drone images that aren't georeferenced. I'd like to georectify them by pulling projection and coordinate data from the GeoTiff files, but I'm having difficulty. My initial thought is to use GDAL in Python to pull lat/long data and use that to georectify the images...

I've loaded a georeferenced TIFF over a university (NTNU) into MapBox Studio. The fist problem is that everything is black, and I have to use the longitude/latitude of the area to find it. Second, and more importantly, when I zoom in to the ortophoto, MapBox refuses to zoom further than level...

Reporting to: CEO Key Responsibilities • Monitor the various communication channels and search for tenders on daily basis to identify any Contracts/ Opportunities that may be of interest to the company. • Evaluate tenders to ensure they are of strategic and/or profitability importance and...

By Mathy Stanislaus In 2014, after several catastrophic chemical facility incidents, I represented EPA as a Tri-Chair for the creation of The Report for the President, Actions to Improve Chemical Facility Safety and Security – A Shared Commitment, to recognize the central role of local...

We’ve teamed up with Twitter to power maps and geo on the Fabric Mobile Development Platform. Starting November 18, our iOS and new Android SDK will be available on Fabric - integration with mapbox will be as easy as clicking a button and adding a few lines of code. Learn more about Fabric and...