An extent is the minimum bounding rectangle (xmin, ymin and xmax, ymax) defined by coordinate pairs of a data source. All coordinates for the data source fall within this boundary.

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Python version of MAP_2POINTS

I think I may have stumbled onto an IDL function which does not have a python equivalent... :'( I am working with a Whiskbroom imaging radiometer (Terra/Aqua MODIS), with a corresponding bounding box ...
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40 views

How can I insert a bounding box or polygon in a PostGIS geometry field?

I have a field in my table called 'geometry' that was created thus: CREATE TABLE "public"."sites" ( "id" int8 DEFAULT nextval('sites_id_seq' :: regclass) NOT NULL, #... A few MORE fields ...
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28 views

raster files are not exact in extent after clipping

My two layers (chlorophyll-a and Bathmetry) are not exact after I clip my rasters. My bathymetry data (1) is reporting up to 10 decimal places where as chlorophyll-a (2) is only 3 decimal places and ...
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32 views

Deleting vector lines beyond image extents using QGIS?

I am using QGIS 2.2 I have one vector line layer (roads) that stretches beyond my base image (see below). I wish to have the roads "clipped/trimmed or deleted" right at the edge of the image's ...
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40 views

Setting the correct zoom level from Sector bounds for flat map using WorldWind SDK

This is not coming out correct for me. Setting the zoom level based on some other code I got on here using the EarthFlat model, which does not set the correct zoom for the placemarks within a sector ...
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30 views

Determining projection of Texas county shapefile?

I have a Shapefile of San Jacinto County in Texas. It thinks it is NAD83 UTM Zone 15N, but the dataset isn't jiving with any other dataset. Max X: 1,073,721 Max Y: 11,223,970 Min X: 895,728 ...
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16 views

Passing extent from web map to PDF for integration?

I'm trying to figure out whether I can take an extent (or coordinatess with a Zoom level included) to a PDF in order to author a PDF that displays both GIS and report-styled business data? Is this ...
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37 views

arcpy.Describe.extent not working [closed]

I have a script using ArcPy that I used a year ago and calculates the extent of all the features in a shapefile: # -*- coding: utf-8 -*- import arcpy from arcpy.sa import * import os, os.path ...
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54 views

accurately find the bounding box of geography polygons

Im displaying polygons on a map and have had issues with the spatial index where the index performs well only for certain data sets (large areas with low density / high density small map areas). I've ...
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7 views

Setting the extent in cartodb to the sublayer bounds

How do you set the extent of a sublayer to fit all of the points? I've been trying to use this bounds function, but it doesn't work: sql.getBounds('select * from table').done(function(bounds) { ...
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45 views

How to determine bounding box of current qgis 'map canvas extent' from the python console

I've asked a similar question here: How to quickly calculate bounding box coordinates of a selected polygon with qgis ...regarding a quick way to determine the bounding box of a given layer. Is ...
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21 views

Set initial extent programmatically Android

I need to dynamically set the extent when the map loads. I have graphics that are being added to the map layer and want the extent to allow all the graphics to be shown. Currently I am getting a min ...
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30 views

Reference Coordinates System bounds

I have a catalog that contains different coordinates system definitions. I have a web interface where one should be able to see a given coordinate system extent in a google maps view. My question ...
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1answer
28 views

ArcGIS Feature Class Extent Changing

I've been having a problem with the extents of feature classes in our SDE here at work. Our database is divided into feature datasets that have various feature classes in them. The problem is as ...
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30 views

Where to purchase global boundaries data on city level for commercial use?

Recently I was asked to deal with an app geo locating improve project. It can't be completed without any boundaries metadata on city level. But so far most of my research led me only to things for ...
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25 views

Extract BoundingBox with Osmosis Java API

I'm am trying to use the Osmosis Java API to extract reasonably sized blocks from the OSM planet file using the BoundingBoxFilter. Note: I'm using maven Osmosis packages NOT the command line ...
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2answers
79 views

Is it best to use multipolygon or polygon features for large intersect operations?

I have two large layers that I want to do intersect operations. One is municipalities and the other is landuse. Right now, the landuse layer is of MultiPolygon type that is, for the entire state, I ...
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46 views

Bounding geo points

I am kinda new to geo data processing. For my sample project I am trying to solve next problem. I have array of geo points. If we place it on plot we can visually see that there are areas where ...
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1answer
82 views

Disabled zoom and pan in ArcGIS desktop

I have an MXD that someone else has created. They have put some sort of lock on the extent that stops me from zooming and panning. I cant for the life of me work out how to turn it off. Does anyone ...
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82 views

Unexpected Polygon Zoom Extents with a Rotated Dataframe

I have created a series of roated Grid Index Features. I wrote an ArcPy script to generate the grids and adds a rotation value field. My plan is to run another ArcPy script that zooms to each grid ...
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415 views

Python - Find the largest extent in a list of extents (tuple format)

I am trying to find a way (simplest is the best) to retrieve the largest extent in a list of tuple extents in python. The list is looking like that: extents = [(-180.0, -90.0, 180.0, 83.624), ...
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21 views

WCS: Raster Size Out of Range Error even if within Capabilities' Lower and Upper Corner

I'm fairly new at WCS so bear with me if this is a really stupid question, but I can't really understand the problem. I'm trying to retrieve some DEM data from the Italian Ministry of Environment's ...
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43 views

Restrict WMSLayer (not map) extent with ArcGIS JavaScript API

Is there a way to restrict the rendering of a WMSLayer to a specified extent without restricting map panning and zooming? That is, I need the client to be able to pan outside the limits of the ...
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44 views

Open Layers Bounding Box, Flickr API, and popups?

Ive been using the code from the BBox strategy with my Flickr API to display photos on my map with some success. http://dev.openlayers.org/releases/OpenLayers-2.13.1/examples/strategy-bbox.html ...
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QGis Filtering postgis layer with boundbox

I know It is possible to split a polygon feature by interactively drawing a line over it in QGIS 2.0 with the Split Feature command.The issue i have is that postgis layer i am trying to work on is ...
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90 views

Equivalent function to shapely's envelope in ogr?

I wrote a very simple python function that gives me the envelope/bounding box/...based on two coordinate pairs (ower left and upper right corner): # ... def get_bounding_box(self, ll_corner, ...
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ogrinfo returns a negative coordinate for extent of mif data file

I'm trying to get the extent of a MIF file using ogrinfo. The MIF file is supposed to be in epsg:23030 projection. This is: PROJCS["ED50 / UTM zone 30N", GEOGCS["ED50", ...
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34 views

What is the syntax for using a Bounding Box in QGIS WFS?

I am connecting our company Web Feature Service (WFS) to QGIS. I want to set the bounding box in the Expression string builder but the syntax is not working. bbox(79170, 3971, 99152,18095) The ...
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2answers
111 views

Sending map extent in (geo)JSON

I have a leaflet map that I need to fitBound on a given rectangle. The coordinate for the fit bound will be transfered in JSON via a REST call on a server. We are using GEOJson to encode our geometry ...
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1answer
47 views

ArcObjects ExportMapImage modifies image extent

I am trying to extract a map image at a certain range. I am using IMxdServer's ExportMapImage method, documented here. Here is the relevant snippet of code: IMapDocumentPtr ...
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2answers
243 views

Can you change the processing extent in environment settings using python to a shapefile?

I have managed to do this manually at Geoprocessing>Environments>Processing Extent and setting the shapefile in the drop down bar. I was wonder if this could be automated with a python script? My ...
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111 views

Using python to get extent and split coordinates into list

I have the following code: for fc in fcs: desc = arcpy.Describe(fc) ext = desc.extent ext.split(" ") print ext I'm getting error: AttributeError: Point: Get attribute split does not ...
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296 views

QGIS Get extent of layer

Is there a way to get the extent (bbox) of a vector layer in QGIS? I see that I can update the extent, but I am looking for the actually for coordinates of the extent.
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48 views

How to find zoom levels based on a given bounding box in srs 4326?

I need a function that outputs Zoom Level of a bounding box. for example imagine this bbox: 38.056640499272,22.412109500728,67.060546749272,36.91406262572 How can I found the level?
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115 views

How to generate bounding box based on tile numbers using slippy map tiles method?

Description: I am writing a map cache server for my company. I have to get input data based on tms standard and send a request to wms server to render and cache map files. I am using slippy map tiles ...
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2answers
180 views

Using python to Raster clip the extent to be the same as the display?

I've been trying to figure this out for almost a week now. I am creating a tool which first needs the raster to be clipped out to the current display. I have tried all sorts of things. Below is the ...
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57 views

Best way to group datasets by country/region

I 'm using ArcGIS 10.0 and have a folder with misc GIS datasets from all over the world. I wrote a script that finds all of these datasets and writes them to a .csv file, but I also want to identify ...
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120 views

Applying unique processing extent to each iteration of tool in ArcMAP Model Builder

I am trying to create an automated ArcMAP (10.1) tool that will read in a file (ASCII most likely) of maximum and minimum lat/long values along with some additional variables. The tool will iterate ...
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49 views

How can i get the contour (boundry line) of a feature collection

I have all parcels of given locality as a FeatureCollection. Each parcel is a Feature with a MultiPolygon outlinine the boundry of that parcel. I would like to get a Multipolygon that has the shape ...
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64 views

Retrieving raster/coverage width and height in pixels from GeoServer

Is it possible to retrieve the original width and height in pixels for a coverage in GeoServer using either the Python API or REST? I could not find anything in the documentation regarding how to ...
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2answers
552 views

How to change shapefile longitude from -180 - 180 to 0 - 360?

I have a shapefile of world countries, with longitude between -180° and 180°. How can I change the shapefile (eg. with ogr2ogr) for having longitude between 0 and 360°. Following OSGEO/Trac ...
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2k views

How to quickly calculate bounding box coordinates of a selected polygon with qgis

I just manually (and somewhat inaccurately I'm sure) retrieved the bounding box coordinates for a county polygon, which is a selection from a larger layer of county shapes. I'd like to be able to use ...
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3answers
1k views

Zoom to selected features with ArcObjects

I am trying to figure out what is the best way to set the active view extent to be able to view all the selected features on the Arc Map. 1.The Map has only one layer. 2.The features are filtered ...
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1answer
215 views

Maximum size on the bounding box with ST_MakeEnvelope and && and geography column in PostGIS?

I've done quite a few google searches, but haven't managed to find anything that has helped me directly. I've got a few features in a PostGIS table with a geography column. The features are focused ...
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2answers
153 views

MapServer and OpenLayers: Properly using MAXSCALEDENOM in mapfile (google baselayer)

My base layer: google map My points on the map: from an airports.db file, set up as a WFS layer in the OpenLayers code. As of now: map loads, points in the correct places on the map. My goal: ...
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85 views

Why are Bounding Coordinates not as expected? [closed]

I have a shapefile in GCS_WGS_1984 projection, but the bounding coordinates/Feature extent shows the wrong coordinates in the screenshot below. . I tried to change the projection, by deleting the ...
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2answers
172 views

How to transform a PostGIS bounding box?

I need to query the bounding box of a table (in WGS 84, srid 4326), and transform it to Web Mercator to be consumed by an OpenLayers map. Currently, I am using this to retrieve the bounding box: ...
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119 views

How to rotate sphere when using Vertical Near Side Perspective projection?

Situation Data is currently displayed on a globe using the Vertical Near Side Perspective projection with a blue circle as a backdrop. Problem I would like to 'rotate' the globe by altering the ...
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1answer
257 views

GeoServer not reading bounding box from PostGIS geometry correctly

We are using GeoServer (tried on version 2.2 and 2.4) to render WMS with a PostGIS (version 1.5) data store. We set up the geometry field with all the appropriate constraints and validated/cleaned ...
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1answer
76 views

How to get bbox from geolocate?

I am using geolocate to zoom to the users location. Afterwards I am trying to get the bbox of that area. However the geolocate function is for some reason always executed last, so I don't get any ...