3
votes
1answer
113 views

How to download products from ESA's scihub using OData protocol?

How one can download files programatically using scihub OData protocol and cURL (or other library/program)? You can get a descriptive xml response of the API for a dataset can be obtained by this ...
0
votes
0answers
9 views

How can i solve multiple route in ArcGIS network dataset?

I created a network dataset using ArcGIS Network Analyst . I have one start and one destination .I want to find three shortest path from start t omy destination ( found three shortest paths from point ...
2
votes
1answer
140 views

Geotools 8.4 CRS.decode invalid(?) reference to HTTP_URI_OGC

I'm trying to do a simple CRS.decode to lookup a CoordinateReference system: E.g. CoordinateReferenceSystem target_crs = CRS.decode("EPSG:4326"); However this fails with a reference to the ...
1
vote
0answers
245 views

ArcGIS (ArcObjects) Windows 7 - 64 bit -support

I have been developing with ArcGIS Cross Platform C++ SDK (with Qt 4.8.2) on 32 bit Windows XP SP3 (development machine). I used to use MapTool Control within ArcObjects on the development machine. ...
1
vote
0answers
5 views

Connecting FME Server to Active Directory - Failed to create credential

I'm trying to use FME Server's Active Directory integration to authenticate users. The connection works but fails soon after (and single sign on fails). The account has permission to log on as a ...
1
vote
1answer
31 views

Connecting Oracle Linux database to AcGIS 10 on windows PC

I am wondering if anyone has tried to connect from ArcGIS 10, to an oracle database stored on a Linux server? I have no problems connecting to oracle from Arc when the data is stored on a windows box, ...
2
votes
2answers
47 views

Get single layer in OpenLayers 3

I am doing an upgrade from OpenLayers 2 to Openlayers 3 and it seems to me that in OL3 there is no direct way to get a layer from map by its id. In OL2 it was like: map.getLayer(id) If we look in ...
0
votes
1answer
172 views

Pull pixmap image source from ui edit text in QT

I'm putting together a custom form for QGIS identify using Qt Designer. One attribute has a file name to the accompanying photo of the feature. I'd like to have the photo label in the form grab the ...
0
votes
0answers
10 views

OpenLayers 3 - Monitor layer loading progress

I'm doing an upgrade from OpenLayers 2 to OpenLayers 3. In OL2, I was monitoring the loading progress of layers with their loadstart and loadend events. With grid layers I was even able to show a ...
1
vote
0answers
29 views

How to stylize/design maps without tools like m*p b*x (paid tools) using OSM data

I would like to know, how i'm able to stylize/design maps without using paid tools. I would love to work with Openstreetmap data. I know i could stylize these data in free GIS softwares like QGIS but ...
1
vote
1answer
15 views

Long term NDVI mean from different resolution satellite imageries

I have 10 years satellite imageries of different resolution (Landsat TM, LISS3, AWiFS and Landsat 8). My aim is to generate long term mean NDVI from that data. Since the resolutions are not same, i ...
4
votes
1answer
132 views

Calculating a Unique ID on a Subgroup of Polygons

I would like to assign a unique ID to polygons in a dataset. The catch to my issue is that I would like polygons that fall within a polygon to have the same unique ID. My example is related to ...
1
vote
0answers
10 views

how to convert shp and gis line and raster data to autocad (dwg or dxf) in QGIS or GRASS

I am trying to find out which is best free GIS program with ability to convert shp and line and raster files to files suitable for autocad (e.g. dwg and dxf). I have QGIS and GRASS. I get an error ...
0
votes
1answer
26 views

Crop one shape file using another shape file in QGIS

In QGIS 2.0.1, is there a way to automatically slice up one shape file and export it as multiple files using polygons defined in another shape file? I have a detailed shape file that categorizes the ...
4
votes
1answer
445 views

Spatial join to kernel density / kernel density with polygon/point output in Arc

I'm looking for a way to join polygons to a density function for some other feature of interest. Current workflow make density raster from feature set of interest, using point/line/kernel density ...
0
votes
2answers
33 views

Using raster to clip vector data

I have high res raster data covering 2million km sq, with a field where each cell has a value from 0 to 100. I need to create a "mask" using the cells with a value over 12 in that field. I then need ...
5
votes
2answers
75 views

Software for amateur topographic surveys

I'm interested in doing rough topographic surveys using my tripod-mounted Brunton transit compass for azimuth readings and laser rangefinder (and maybe an optical level), so obviously going to be much ...
0
votes
0answers
9 views

Openlayers - zoom specify a sub section of displayed map to zoom on

I have working solution with openlayers 2 ... moving assets are show on the screen, as soon as they go off the screen, the map pans so the asset is visible on screen (on map) However, on the left ...
4
votes
1answer
564 views

How to create tiles with points from MongoDB?

I have a (potentially) large data set stored in MongoDB. Each record is just lat, lon and some float-point value. Each pair of lat and lon is unique, but the whole set is not covering the Earth, there ...
2
votes
1answer
42 views

Conflicting WGS84 coordinates between Trimble and Garmin GPS receivers

I am a contractor at a government facility in Nevada. We have our own in-house survey department who, for a number of reasons, still uses NAD27 State Plane Coordinates (Nevada Central Zone 2702) in ...
2
votes
2answers
133 views

ENVI to map composition

I'd like to print out 6 images in a single page. How can I do this using map composition tools in ENVI (6 images are year-to-year dynamic images with the same size and the same geo-referencing)? ...
0
votes
1answer
66 views

Exporting Folder of shapefiles to file geodatabase (GDB)?

Shapefiles Above mentioned is the link for the sample folder of shapefiles. I am working on exactly opposite of Export File Geodatabase to Folder of shapefiles I have a multiple folder of shapefiles ...
1
vote
1answer
253 views

Why doesn't the Kernel Density Estimate function appear in AniMove plugin?

can anyone tell me why the Kernel Density Estimate function does not appear under my AniMove plugin in QGIS? I can only perform the MCP. I run Windows OS.
2
votes
1answer
18 views

fit point with raster data figure out those points belong to, and add column and row to represent it in ArcGIS 10.2.2

I have an X-Y point data file, with which has latitude and longitude. I'd like to be fit it with the raster data, then add column and row data on the X-Y point data file. first i created the attribute ...
0
votes
1answer
20 views

how do you erase polygons that don't have a line intersection?

I am trying to erase any polygons that do not have a line intersection through them and am unsure of what tool to use using ArcMap 10.1
0
votes
1answer
89 views

Weighted Overlay - passing parameter as text error?

For some reason when hardcoding the save path for the wieghted raster just before runtime it works perfectly. Like such... arcpy.env.cellSize = "90" arcpy.env.workspace = r'G:\Xcel\Route ...
1
vote
0answers
11 views

Why does this Geotools Java reprojection to WGS-84/4326 cause offset?

I am using the block of code below. I am reading in a geotif with a UTM zone projection and converting it to 4326. I am pulling out certain multiband values and creating a new raster, when I plot the ...
2
votes
2answers
126 views

Finding Polygons which do not touch any other polygon in a single oracle database table

I currently have an oracle table of approximately 100,000 records - all of which are polygons. I want to find all the polygons which do not touch any other polygon within the same table. There are a ...
0
votes
0answers
22 views

gdalwarp hdf problem

I am working with some hdf files. The following command works on my Mac. command = gdalwarp -of GTIFF -tr 1000 1000 -tps -s_srs "+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs " -t_srs ...
2
votes
1answer
16 views

Does GDAL has any substitute function for the ExtractByMask in arcpy

I am now using arcpy: arcpy.sa.ExtractByMask(weight_raster,elev) both weight_raster and elev are raster data in different size. I want to use functions in GDAL to replace this arcpy methods. Does ...
2
votes
1answer
232 views

Using ST_MakeEnvelope over the dateline

I'm using ST_MakeEnvelope in PostGIS to try and make geometries that cross the international dateline, but they are making a shape that wraps the other way around the globe. The geometry I want is ...
0
votes
1answer
20 views

Examples of config.yaml for printing

I've been reading this, I wonder if there are config.yaml nice examples available to take a look at them. I'd appreciate if some web links for the examples or output images can be provided for this, ...
1
vote
0answers
55 views

Creating multiple routes at same time with different stop locations using ArcGIS Network Analyst?

I have a feature class that contains about 500 cross-streets locations and another feature class that contains about 1800 locations. I need to create a route from each cross-street to 1-6 locations. ...
2
votes
1answer
93 views

How to rename multiple rasters with modelbuilder

I have 101 raster images stacked inside a folder. The Rasters are of arcinfo grid type (*.asc) while having a long string name 'NW2D_T100_05_base_depthXXX.asc' where XXX ranges from 000 to 100. What ...
9
votes
4answers
692 views

Applying version control to ArcGIS Models

Version control is an indispensable tool for software development, allowing one to reliably and cleanly step back in time to the last time X did it's job exactly right, or to see what changed between ...
1
vote
1answer
20 views

Checking whether Spatial Reference is Projected Coordinate System using ArcPy?

I'm modifying CreateFishnet in ArcGIS 10.1 using python.. I want to ask the user to input a projected coordinate as spatial reference. How can I check if the user didn't put geographic coordinate by ...
9
votes
7answers
13k views

Get boundary of raster image as polygon in ArcGIS Desktop?

I have a rectangular raster image in ArcGIS. My question is: how can I produce a polygon which is just the extent of the raster image? That is, I want to have a polygon layer with a single ...
0
votes
0answers
3 views

Troubleshooting a few missing shapefiles on Google Fusion Tables

I downloaded a set of election precinct shapefiles from the Clark County Nevada website and converted them using shpescape.com into KML files for Google maps. Now I'm trying to troubleshoot why a few ...
1
vote
0answers
25 views

Visualisation of “dominant” point in each location

I had an idea for a kind of visualisation, and I'd like to know if it's been done before, what it's called etc. Basically it would visualise a single numerical quantity that varies greatly, at ...
0
votes
1answer
17 views

Copying the numeric portion of an address to a new field

I'm attempting to copy just the numeric portion of a street address into a new table using the Field Calculator in QGIS. The expression I'm trying to use is: left( "SITE_ADDR", strpos( "SITE_ADDR", ...
1
vote
1answer
22 views

How do I create a local web GIS server using Node.js?

This is a question related to my other question OpenLayers/jQuery without CDN?. I was looking to copy a minimal set of files on js/css files to replace online CDNs, so that I can run a test server on ...
1
vote
0answers
4 views

Using statisticdefintion in a querytask

I have a question about using QueryTask to accomplish to jobs: Identify unique value for a county in a graphics layer via mouseover. This unique county value (from a specified field) is used to ...
1
vote
3answers
2k views

How to move and open shapefiles with ogr2ogr?

I'm a total newb following along the d3 map tutorial. at this line: ogr2ogr \ -f GeoJSON \ -where "adm0_a3 IN ('GBR', 'IRL')" \ subunits.json \ ne_10m_admin_0_map_subunits.shp I get ...
1
vote
1answer
140 views

How can I add grid lines to a print composition using pyqgis?

I'm writing a qgis plugin to create an image in the print composer of the current map. I can get the map rendered in the proper place with a frame of the right width, and I can get grid annotations ...
2
votes
1answer
47 views

How to create network dataset for train lines with points representing train stations in ArcGIS 10.2?

I would like to build a network dataset that that includes a line shapefile representing train lines and a point shapefile indicating train stations along those lines. When I right-click on the ...
0
votes
0answers
11 views

How to get linestringe from kml into shp or postgis [duplicate]

Im looking into extracting linestrings from a kml file into a shp file or postgis db. Each linestring would be a feature/row. How would I go about it usinge ogr2ogr or python? I'd like to get ...
0
votes
1answer
20 views

Installing Shapely with libgeos_c on Linux?

The installation instructions for shapely suggest: "Windows users should use the executable installer, which contains the required GEOS DLL. Other users should acquire libgeos_c by any means, make ...
0
votes
0answers
16 views

How to save geopackage gpkg file with QGIS

I read about the new geopackage file which shall have the potential to be the shapefile of the future. But i can't find a way to save a file in QGIS as gpkg. In ArcGIS it might be possible. I would ...
11
votes
1answer
488 views

SEXTANTE toolbox - GRASS error

I am trying to use the SEXTANTE module GRASS (and SAGA) for vector analysis but whatever function I use I always get the same error:"Could not load layer: G:/closest.shp Check the SEXTANTE log to look ...
11
votes
2answers
647 views

Why learn/use Python Toolboxes over Python Script Tools?

I've written a few Python Toolboxes (which are new at ArcGIS 10.1), but am yet to decide whether/when I should write them rather than Python Script Tools in a standard toolbox. I thought the Online ...

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