0
votes
0answers
2 views

Can't Get my legend on a swipe layer map

I'm having trouble getting a legend on my swipe layer map. I'm new to Javascript and took most of the code from the API reference but can't get the legend to show up for either layers. I'm Hoping ...
0
votes
0answers
6 views

Update: Creating multiple routes at same time with different stop locations using ArcGIS Network Analyst? [duplicate]

This was the original question asked followed by the update. I posted the update to the original question but I don't think it was being seen... I have a feature class that contains about 500 ...
1
vote
1answer
7 views

ERROR 000989 Issue with Python Script and Field Calculating distance between two long lat points

very new to scripting and I have been struggling with my script for a while. I'm not sure why it doesn't work in field calculator. I am trying to calculate a list of distance between two long lat ...
0
votes
1answer
11 views

Read ellipsoid parameters

I would like to retrieve the semi-major axis of ellipsoid of a layer (any layer) using Python API. It seems that crs class can read only the ellipsoid acronym (?) Apparently, QgsDistanceArea class ...
4
votes
1answer
29 views

Symbolizing using RGB values from Excel in ArcGIS for Desktop?

I have an excel file with 2 attribute columns, 1-feature info 2-Number of color (RGB) that the current feature should be symbolize. This file file can be joined with the layer using the "feature info" ...
1
vote
1answer
57 views

How to use gis data

I am extremely new to gis, i just received a shape file, and a zip file that includes the following files: filename.SHX filename.SHP filename.prj filename.dbf filename.cpg but not sure how i would ...
0
votes
0answers
23 views

ArcGIS 10.1 - Error No spatial reference exists

I'm encountering a new error on some geoprocessing. It originally showed up while running commands in arcpy but now it crops up whenever I run some tools. I've been using the Extract by Mask on some ...
0
votes
0answers
3 views

How use POST method in MapFishPrint?

I have one problem to print maps using mapfish print, when I need to print vector layers occurs HTTP error 413. Because this i have using POST method, but occurs other timeout; Mapfish print 2.1
0
votes
1answer
5 views

Multiple Layers Boundless Suite-SDK ol3view

I am currently building a simple web application with the Boundless OpenGeoSuite SDK ol3view (Openlayer3 viewer) and I was able to get one layer to show up from my geoserver instance but I would like ...
2
votes
2answers
32 views

How to calculate percentage of selected area from DEM?

I am working with elevation data and performed a local operation to convert it from meters to feet. I am interested in finding the area (expressed in percentage) that is above 4000 ft, but I have ...
0
votes
0answers
4 views

CartoDB - Multipolygon not showing intersections

I'm having an issue with Multipolygons on CartoDB. I have a very simple scenario: A multi polygon row on a table that needs to be displayed on the map. Fact is that when more than two polygons ...
1
vote
2answers
20 views

What are QGIS Arcpy Equivalent Functions for MakeFeatureLayer and SelectLayerByLocation?

I have a script that I had created using ModelBuilder, but our field personnel use QGIS 2.0. Below is a snippet of the code. I am wanting to know if there is an equivalent using pyqgis so that I can ...
0
votes
0answers
5 views

postgis resampling two rasters to a common intersection grid?

I am testing the PostGIS map algebra (ST_MapAlgebra) on two different raster tables. Each table contains a single image/row. They have the same SRID but different, overlapping extents and different ...
0
votes
0answers
9 views

Save raster from qgis using a compression

There is a method to save raster from qgis using a compression? For exemple from "Export map" in arcgis there are many options to compress the images depending on the file type (tiff, jpg...).
1
vote
1answer
16 views

How to remove data points that don't overlap with other data

I am working with a dataset for the whole state, but I want only the data point that overlap with another polygon dataset. How do I get rid of the excess points that don't overlap?
0
votes
0answers
4 views

Using ArcGIS Explorer Find function to locate layer feature

I'm new to using ArcGIS Explorer. I have map of a state, overlaid with a grid that a colleague made. Each grid cell has a unique number associated with it. I'd like to be able to search for a specific ...
1
vote
0answers
15 views

Why does my modulo expression return false?

I've got a shape file of contour lines with 5 m and 10 m stepping. From time to time I need to modulo out the 5 m lines in the viewer. Given a column "contour" this should work (shouldn't it?): ...
0
votes
0answers
24 views

Alternative way to find intersection between two polygon feature classes

I have been working on making a script to find intersection between two polygon ArcGIS feature classes. I can successfully do this in arcpy instances using spatial join or using search cursors on the ...
0
votes
0answers
14 views

PostGis: find distance if closer than X. For huge sets

I have two tables (that can have different geometry: point, line, polygons, ecc...) and I have to find distances: for all features in table A, for all features in table B, if feature is closer ...
0
votes
0answers
3 views

Show information from a KML in a Framedcloud?

I'm building a map with OpenLayers on my website to share the best roads, trips and places I've been in my motorcycles trips. I put together few kml files and used FramedCloud to show popups with ...
0
votes
0answers
11 views

Algorithms + additional information

I would like to know where i could find information or some instructions for algorithms. For example algorithms to calculate routes between cities or to optimize the way a route is calculated when you ...
0
votes
0answers
8 views

QGIS Print Composer - SVG output displays objects outside the frame

On Windows 7. QGIS 2.6.0 from OSGEO network installer 64bit (and checked with latest dev version) I am preparing a print composer map displaying only vector data (shp). Data in the map canvas and the ...
0
votes
0answers
5 views

CartoDB - Update column from local csv

So I uploaded a csv from my local drive and set up the map, but I would like to update a column of data every day and re-upload the csv, but keep map settings. The dataset is very simple: one column ...
2
votes
0answers
23 views

Why are my polygons automatically simplified/generalised when merging them in ArcMap 10.2?

I am creating a small land use map, as an exercise for visual image interpretation. I created a shapefile and started digitising polyogons with the polygon tool. The problem is that some of my ...
0
votes
2answers
19 views

How to obtain data to create average precipitation in 2012?

I am currently doing a final project, which I have to create a map of 2012 average precipitation of lower 48 states by using natural neighbour interpolation. The problem is that how can I get the ...
0
votes
0answers
6 views

Export to Oracle using QGIS

I have loaded a shapefile into QGIS and I now want to export it into our Oracle Database and add SDO_GEOMETRY. Is it possible to do this directly in QGIS? If not, what opensource options do I have to ...
0
votes
0answers
17 views

error converting shapefile to geoJSON with Ogre online tool

I am using on online tool built with ogr2ogr to convert shapefiles to geoJSON: http://ogre.adc4gis.com/ It's worked well except for one shapefile, and I can't see why... The shapefile has only six ...
1
vote
1answer
18 views

How to pick adjacent GeoTIFF files out of a set?

I have a large amount of large GeoTIFF images. Their names are arbitrary and the person that created them does not work here with us anymore. I need to do some programming experiment. How can I pick ...
0
votes
1answer
6 views

Remove sections, defined by a line or polygon, from a raster in QGIS

(QGIS 2.6.0 on Windows.) I have created a raster layer of heights using the TIN interpolate function. I also have another raster layer with more accurate information on the height of particular areas ...
0
votes
0answers
8 views

I'd like to change the style of a polygon based on its size in Mapserver?

I would like any polygons on a certain layer that are larger than 40,000 square feet to draw as transparent.
1
vote
0answers
11 views

Is product purchaser in distribution area?

I am going to be using PostGIS 2 to create a lookup service. Given a point (lat/lon), I need to either find if a product can be distributed there, or b) a list of products or distributors. I am ...
2
votes
0answers
7 views

Is it possible to add an ArcGIS attachment to a row in Oracle/SDE using oracle stored procedures?

So far I have been able to attach files to features within a featureclass using the python tools and ArcObjects. Within Oracle I have been able to add features with geometries using the ST_Geometry ...
1
vote
0answers
4 views

How to create a infotemplate that displays automatically

I have created a postcode search that that highlights a polygon and zooms in. but I would like it to display a infoTemplate box with having to click in it. I want it to show when the function runs. ...
1
vote
0answers
10 views

Using tool validation to create parameter based on fields of another parameters input?

I'm assuming I'm missing something and this is a pretty easy thing to do but I'm stumped... I'm working on a script that currently takes and input excel file and uses a "hard coded" field name that I ...
-2
votes
0answers
26 views

query (select) only for buildings [on hold]

can someone helps me with a single query that would give me back only buildings (houses, storages, etc) but only buildings.
1
vote
2answers
61 views

What is the smallest size a point can be represented on ArcMap 10.2?

I have a large number of points that I need to plot and want to avoid overlaying them wherever possible. Whenever I choose a figure <1 for their size, I don't see any difference, yet ArcMap seems ...
1
vote
0answers
18 views

python shell crashes on table to table conversion

I have two computers running the same code and on one (with better performace) it runs fine but the other crashes the python shell when executing the code below. I really don't understand why, any ...
2
votes
1answer
15 views

Leafletjs get latlng center position of polyline

After drawing a polyline, I would like to draw a circle from the center of this line whose radius encompasses the entire line. For polyline's that have more than 2 points I can crudely get the center ...
0
votes
0answers
30 views

OpenLayers and GeoJSON

there! Recently I started learning Openlayers 2x and I've been struggling for a while now with a GeoJSON and it's projections. So, here is the deal; I successfully added wms layers from ( ...
0
votes
0answers
7 views

Where is documentation for OSGeo FDO API?

Can anybody help me to find the documentation for OSGeo FDO API for .net and for NetTopologySuite API ?
0
votes
0answers
9 views

Slanted raster along the line? Wind erosion model and windbreak effectivity

I'm working on wind erosion modelling and windbreak potential. Imagine windbreak, which has some values of optical porosity (in %) and this values determinates the effectivity of windbreak in specific ...
0
votes
0answers
9 views

QGIS formatting problem using POSTGIS (datetime)

I want to use the time manager plugin using data from a PostreSQL-db. In there the time stamp is set up as follows: "[...]to_timestamp('2014-10-21 00:00:00', 'YYYY-MM-DD HH24:MI:SS')::timestamp ...
1
vote
3answers
20 views

How can I display a symbol to a specific attibute in QGIS

I have a point shapefile, where I categorized my waypoints with attributes (schools, toilets, etc) and I would like to display certain attributes with specific symbols. How can this be done? Thank ...
0
votes
1answer
36 views

Solving “Traveling Purchaser Problem”

Till now, I was using PostGIS-pgrouting pgr_tsp function to solve Travelling Salesman Problems. This function can give us the best possible route depending upon the cost parameter when the starting, ...
0
votes
0answers
5 views

how to connect with MS sql server 2014 with Geo server 2.6

I am working with MS Sq l server 2014 and want to developed a web based application with Geo server 2.6 .............i am not able to see the MS Sq l server option in Data->Store please provide ...
0
votes
1answer
12 views

Can I plot points on a map using JSON data from a Node.js API?

I am new to the arcGIS JavaScript API. I have a Node API that is providing geographical information in JSON. I have google'd for examples and searched for solutions on this web site. Can anyone ...
0
votes
0answers
10 views

Saving Map on Server Side as Image File

I am trying to save my openlayers map on the server, following these instructions, the sections Client-side: Tile collection and Server side: PHP: ...
0
votes
0answers
17 views

Apply css styles to layers in openlayers3

define layers and styles using openlayers3 API. i need 2 apply css styles for layers.for that code is in below used //applying styles for wms layer var fill = new ol.style.Fill({color: 'rgba(237, ...
0
votes
1answer
25 views

Loop stops before expected without error message

I try to run a script that clips all the feature class of a geodatabase by the successive features of a clip layer (named pochoir). Thank to support here and here, the test of the intersection is ...
0
votes
1answer
44 views

Best program or tool for visualising big data sets really fast 10-20 GB data if the users don't know squat about GIS?

I have between 10-20 GB various GIS-data that there is a need to set up och and visualise for various users who want to be able to pan, zoom and switch between various layers and groups of layers ...

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