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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36 views

Is there any way to set a processing extent for QGIS:Voronoipolygon?

I was playing around with the QGIS:voronoipolygons command line function from QGIS and noticed that there was no option for setting the processing extent. This causes QGIS to pick the minimum extent ...
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54 views

Is there way to define processing extent in QGIS?

Is it possible to define the extent of a processing tool, like it is in the "Environments" in ArcGIS? For example "Same as Display, or "Same as Layer..".
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14 views

How to set extent and zoom level based on extent in openlayers?

I had a problem to set the extent and the zoomlevel in openlayers using GeoExt2. My problem is how do I know extent: [minx,miny,maxx,maxy] the minx,miny,max,maxy in openlayers ? So, I can set the ...
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21 views

Spherical Mercator - World bounds

What are the correct world bounds in the Spherical Mercator projection (EPSG:3857 and EPSG:900913) In some source I got those bounds see this link in the maxExtent parameter: minx: -20037508.3427892 ...
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2answers
21 views

Viewport bounds online update. OpenLayers

I am trying to extract the bound box coordinates of viewport (the box that is displayed). I want to know the coordinates all the time and updated when zoom in/out or dragged. I cheched that ...
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20 views

How to configure “Same as Display” as processing extent by default in ModelBuilder?

I'm working on a very simple model for creating a path from a selected point to the closest polyline, in this model I used a Cost Distance and Cost Path tool for creating the more feasible track ...
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19 views

How to force ArcGIS to re-read FGDB dataset extent? [duplicate]

I have feature class sitting in FGDB. I can add it to map, right click on it in the table of content and pick "Zoom To Layer". This is what I see: I start editing session, remove most of the ...
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39 views

Displaying symbology outside map canvas window extent?

Say we have equally distributed x,y mesh vector file. Each coordinate has a map-unit based diameter circle symbology. If we zoom into a region of the map canvas far enough, some centroids exist ...
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2answers
60 views

How to remove layers that are not in visible df extent

I am working on ArcMap 10.3 and I have a map with 50 layers in it. I am trying to check if layers are in a data frame. Unlike How to check if layers in a dataframe with Arcpy, I want to define the ...
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15 views

Openlayers bounding box dateline crossing

I got a map layer on which a bounding box is drawn. This is working quite well except when east < west which means the date line is crossed by the bounding box. In this case the box is drawn like ...
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1answer
28 views

Create Multiple Circle

I am trying to make many points in a map as a grid. The code makes what I expect but the time to load is quite long so I suppose that there should be other ways to be more efficient drawing many ...
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1answer
34 views

How to determine if a raster layer covers a polygon layer?

I have a raster and a polygon layer. In my application I always want the raster layer to cover all the polygon layer. How can that be determined? Is it possible to find out from boundary extent of ...
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1answer
30 views

gdal RasterizeLayer gives different extent to arcpy PolygonToRaster

I have an existing arcpy script which uses PolygonToRaster_conversion to convert a polygon shapefile to raster (tiff). I am now exploring GDAL/OGR and have used the cookbook approach to carry out the ...
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2answers
65 views

How to calculate a set of minimum bounding boxes for a polygon

I need to calculate a set of minimum bounding boxes for a polygon. Id est having a complex polygon I want to envelope it with a set of small boxes instead of a big one.
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1answer
47 views

Extent changing in ArcGIS Pro when shapefile added to map which only had basemap?

Using ArcGIS 10.3 for Desktop: In ArcMap: Open a Blank Map Add Basemap of Imagery (but any basemap will do) Zoom to Australia (but any area will do) Add the countries shapefile from Natural Earth ...
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1answer
98 views

Pythonic way to recalculate feature extent in ArcGIS 10.2

I am creating a tool that will automate a tedious process of data standardization. One of the steps is to recalculate the feature extent of a SDE file. Surprisingly I cannot find anything useful in ...
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1answer
67 views

ArcGIS Calculate Fields gives Warning 000405 No records within table?

Situation: I have feature layer sitting outside processing extent in Environment settings. If I open layer's table and use field calculator - Calculate Geometry on some numeric field: it works ...
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1answer
43 views

Can layers with different extents in arcmap 10 be made to line up?

I am currently trying to get some insect sampling coordinates that are represented by points to project on top of a polygon that shows all the different plots of land in a ranch. The coordinates for ...
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1answer
119 views

ol3 modify interaction customization

I'm trying to create a ol.interaction.Modify() to adjust a bounding box's edges and position. In OpenLayers 2 I used TransformFeature Control and There were options to configure the transformation. ...
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1answer
132 views

Openlayers 3 ol.extent to ol.geom.Polygon conversion

In openlayers 2 there was a method "toGeometry()" on Openlayers.Bounds() that could convert that bounds into a Geometry. I migrated from ol2 to ol3 and I try to find a solution to easily do the same ...
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0answers
44 views

OpenLayers 3 don't go beyond given coordinates

In Openlayers 3 Max Extent there is mentioned how to set a max extent. But how can I set coordinates in such a way that it is not possible to drag the map beyond the some given coordinates? Extent ...
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16 views

How to relate the zoom level with the real distance in the map?

Let's have this situation: in the frontend I have selected a zoom level in the map. Now, the application must invoke an external API method to search the available items in the current bounding box, ...
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2answers
68 views

Clip to Shape & Extent Indicators

I have a map showing the outline of an area which I'm using to clip other layers using the data frame > clip options. In addition, I have other data frames to show some detail and want to show the ...
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60 views

How to create function that gives google maps getBounds result?

I'm trying to create function that would calculate four bounding coordinates by latLng, zoom level, width and height in pixels, the same like in google maps getBounds function, in goal I won't create ...
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2answers
38 views

translate GRIB product on bounding box

I'm in troubles with the projection of a GRIB product. I have a Cloud mask image and I want georeferencing it with GDAL. I need to pass through gdal_translate before, since i need to fix the bounding ...
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1answer
57 views

Getting a WMS-like bounding box from WMTS services

I'm new to GIS and confused by all the systems that are used to request data. Every provider seems to use a different system. What I need is to request an area between coordinates (WGS-84) as a ...
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81 views

Output extent environment is not respected by Select Layer By Attribute (ArcGIS 10.2)

I cannot get the arcpy.env.extent working for Select Layer By Attribute GP tool. I can verify that I get various values for coordinates when I have panned to various areas on the map. Copy Features GP ...
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2answers
112 views

PostGIS SQL syntax for bounding box

I have the following query: SELECT row_to_json(fc) FROM ( SELECT ST_AsGeoJSON(lg.geometry)::json As geometry, ( select row_to_json(t) from ( ...
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1answer
48 views

Extent from Centroids, Projection, and Resolution?

I have a file that defines a raster, although all the metadata was lost. I know the lat/long coordinates of the grid centroids, and that the grid is in a Mercator projection with a 1/12deg equatorial ...
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1answer
151 views

How to get layer extent in open layers or Zoom to wms layer extent?

I have added wms layers using follow: basemap = new OpenLayers.Layer.WMS( "Layer Name1", "http://localhost:8080/geoserver/wms/workspacename", {layers: 'workspacename:layername'} ); utility = new ...
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1answer
73 views

Extent to xy coordinate- arcpy

I work with arcview 10.3, and i try to extent to xy coordinate with arcpy? I am using this code: import arcpy, os, sys from arcpy import env env.workspace = r"C:\Project" pnt = '178434 ,662446' ...
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1answer
57 views

How to set the map extent so as to show conccurently all the features included in different map layers

I want to load may diffent layers on my map using the ArcGis JS API. I want to set my map's extent so as to show all the features of all the layers concurrently. In other words I am looking for the ...
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1answer
197 views

How can I dynamically restrict pan extents on an image layer in OpenLayers 3?

I have been sandboxing with OpenLayers 3 and thus far have been happy with the results. I have used answers on this site to restrict my most zoomed out level from panning and to restrict the range of ...
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1answer
113 views

Creating a buffer - ArcGis Javascript API

How can I create a buffer that is based on the shape of the geometry that has been drawn. My map application creates a default square buffer extent and I want to create a buffer round a circle based ...
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0answers
112 views

library for minimum bounding box “by width” in javascript or python

I'm looking for a library (or at least a code snippet) to calculate the minimum bounding box "by width" in javascript or python. Below is an illustration from the ArcGIS documentation of that ...
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1answer
103 views

How to make Geoserver dynamically calculate the bounding box of a postgis backed Layer

I set up a store for a postgis db. I set up a layer that queries a table. Geoserver requires that you set the Bounding Box of the layer when you create the layer. The problem is that I don't know ...
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1answer
246 views

How to get wms layer's extent OpenLayers3?

Here is my a part of code , var wms = new ol.layer.Tile({ source: new ol.source.TileWMS({ url: 'localhost:8080/geoserver/BEIS_WS/wms', params: { ...
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44 views

tilestache - bounding box - bbox

I am trying to configure Tilestache in a way that I could be able to ask the Postgis server from client... with bounding box... and in response I would like to get geojson. I would like to try with ...
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1answer
214 views

Data frames not showing up in Extent Indicator Property Box

I have a data frame showing an overview of a city. I also have multiple data frames showing zoomed in areas. I want to show the extent indicators for my zoomed in areas on my overview data frame. ...
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1answer
770 views

How to find markers in selected dragbox openlayers 3?

Here is a part of code, draw = new ol.interaction.DragBox({ /* dragbox interaction is active only if alt key is pressed */ condition: ol.events.condition.altKeyOnly, ...
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1answer
76 views

Bounding box of a set of MULTILINESTRINGs PostGIS

I have a PostGIS table with a geometry column (geom) and a type column. The geom column contains only MULTILINESTRINGs and the type column contains tags that tell me what each MULTILINESTRING ...
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votes
2answers
80 views

Preventing ArcPy from changing MXD extent?

I want to process mxd datasources without changing the extent. When I open the MXD in ArcMap and click full extent, I get 1:214,890, after I save and re-open in ArcMap I get what I saved with. ...
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0answers
46 views

How can one use Google Maps API to mimic QGIS projection/CRS

I used QGIS to find the extents of a list of features. However, the resulting data auto-generates the CRS and changes it from WSG84 to a custom one. Is there a way to use the autogenerated CRS in ...
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1answer
99 views

CRS of QGIS bounding boxes

I used QGIS to find the extents/bounding boxes of a list of features from census data. I used the following method: Vector - Research tools - Polygon From Layer Extent, which creates a new shapefile ...
3
votes
2answers
77 views

Unknown red rectangle appears in map window

I would like to know where this red rectangle comes from? It's not a polygon or a line, it can't be activated or removed or anything else. It just appeared during the project work (adding shp-files, ...
2
votes
1answer
63 views

Joining QGIS extent table with shapefile

I used QGIS to find the extents of a list of features from a census boundaries shapefile. I used Vector - Research tools - Polygon From Layer Extent, which creates a new shapefile with a table of ...
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0answers
145 views

How to correctly render a raster Layer to GTiFF with QGIS python console?

I am trying to render a map from a raster layer. As recommended in pyqgis cookbook and here(osgeo.org) I use QgsMapRenderer(). I am able to produce a picture but it has not appropriate extent and ...
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2answers
287 views

Creating an outline around groups of polygons

I am trying to find a tool or workflow for creating a type of minimum bounding polygon or envelope for complex land areas. (Not just a rectangle, but a simplified perimeter) Can anyone recommend a ...
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2answers
63 views

How to save view so all maps are same when exporting maps?

I have been exporting a number of different projections for a study. However, the problem comes when I want to edit features or zoom in or out. When I then return to the Layout view, the map is not in ...
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1answer
21 views

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 ...