All Questions

2
votes
0answers
16 views

How to put a piechart <Graphic> in <TextSymbolizer> of a Geoserver style?

I reckon that GeoServer layer label style has excellent feature of TextSymbolizer where text label can be positioned relatively on centroid of VISIBLE PART of polygon, as oppose to a geographically ...
3
votes
1answer
24 views

How to add link in ArcGIS Online web map popup to google or bing driving directions?

I have an ArcGIS webmap with school boundaries. I would like to provide a link in the pop up that takes a public user to a free routing website like Bing or Google with the directions to their ...
0
votes
1answer
42 views

Creating 3D Buildings for Google Earth?

I want to learn creating real 3D buildings to use them for google earth. What is the best software for that? And What are the best books/tutorials to start with. Thanks
1
vote
1answer
265 views

Using GeoServer with ArcGIS Viewer for Flex

I need to create a web GIS application using the ArcGIS Viewer for Flex graphical Appbuilder. Can I use it with GeoServer to publish my GIS data or is the viewer made exclusively for ArcGIS for ...
1
vote
0answers
13 views

Optimized interpolation method with fixed-location sample data points?

I'm trying to find an optimized spatial interpolation method that deals with fixed-location sample data points. Say if I have fixed-location sampling sites and collect data daily, and then use these ...
1
vote
1answer
16 views

Tree symbol style set?

I am looking for a set of 2d tree symbols style for a landscape plan. I got an old one trees.avi that I can't import to 10.0. Can anybody link me to one?
0
votes
0answers
21 views

Raster Analysis Grid (Interpolation) Crashes [on hold]

Upon clicking on "Grid (Interpolation)" QGIS crashes. I running QGIS 2.2.0-Valmiera on a Mac with OS X 10.9.4 Thank you for any trouble shooting guidance
2
votes
2answers
27 views

Measuring distances between many points in ArcGIS for Desktop?

So I'm new to this, the answer is probably really simple. I have a point map of X Y data points (one for each participant) for a certain activity. I also have a shape file of zip codes, which I ...
3
votes
1answer
809 views

How to use the pgRouting TSP function?

For more than two days I'm trying to make the TSP algorithm work in PostgreSQL/PostGIS. My problem seems to occur when I'm trying to take into account the road network for TSP algorithm. I know that ...
1
vote
0answers
8 views

how to make mapnik style raster, not just render as solid color

I have set up Mapnik with mod_tile and renderd. I replaced the default osm.xml file with my own xml file, which is shown below. My problem is that all images are being created as solid blue tiles as ...
1
vote
1answer
39 views

Sort colors from light red to dark red

I have the following png image displaying tanker traffic density: The colors are from dark red to light red, dark red means 'lowest density' and light red means 'highest density'. For example, the ...
1
vote
1answer
50 views

ArcPy SearchCursor getValue leads to NoneType object has no attribute lstrip?

I am having a little bit of a dilemma. I am having a problem with using getValue() and striping the value that is returned. For instance, take the following code. import arcpy as ap mxd = ...
3
votes
1answer
232 views

1944 Cyprus Grid coordinate data projection problem in MapInfo

I have coordinate data from the 1944 British Army General Staff, Geographical Section (GSGS) Cyprus map which was cast on the Cassini projection, but was referenced to the Clarke 1880 ellipsoid where ...
0
votes
1answer
10 views

GeoEvent Processor for Server Service Stopping

I have recently began using the GeoEvent Processor for server, It will run for one minute and then stop. I can't really intepret the logs to see what the problem is, and I am hoping a better eye than ...
1
vote
1answer
6 views

mapbox.js 1.6.2 - change tile set on zoom levels

var map = L.mapbox.map('map', 'wmarci.i6n42nl5', { fullscreenControl: true, fullscreenControlOptions: { position: 'topleft' } }).setView([38.8929,-100.0252], 4); How can I ...
0
votes
1answer
20 views

Prefer Straight Routes for wayfinding?

Is there a way to prefer straight roads in network analyst rather than going through zigzag routes (i.e creating straight forward routing instead of really going through the shortest path)? I am ...
0
votes
0answers
39 views

Why can't I permanently remove this vertex?

I'm correcting some data in ArcMap for import into another software. The export utility isn't liking some of the data, and the only difference I've noticed is extra vertices in the polylines. The data ...
1
vote
1answer
32 views

Closed Linestring

I've created a linestring using st_makeline(). When I draw this linestring using QGIS it always makes it closed. The start and end points are not the same and I verified by using st_startpoint() and ...
0
votes
2answers
16 views

rbind of list of selected point txt files

I have lot of Point files in a folder. I would like to rbind (Vertically One after another in a single txt file) as per the list of selected point file from all the point files present in the folder. ...
2
votes
0answers
12 views

When we create a CartoDB table using SQL, is there a way to register it with the tables dashboard?

I have been able to create tables that conform to the CartoDB style by the following method: Create empty table [table name], no columns via SQL API SELECT CDB_Cartodbyfy([table name]) via SQL API ...
2
votes
1answer
252 views

Creating buffers that will not overlap in QGIS

I am dealing with a .shp with a number of points in it. The distances between points range from ~300m to 5km. I wish to create a 1 km buffer around each point with as little overlap as possible. Each ...
0
votes
1answer
16 views

Non Matching Rows

I need to compare 2 CSV files so that I can get the missing rows from each CSV. So I have 2 txt files and I would like to compare one with another and Vice versa. Please find the attached txt files. ...
1
vote
1answer
16 views

Trouble inserting name of feature in TOC into attribute table using arcpy.calculateField

I currently have about fifty rivers and creeks in a map, and none of the features contain the name of the waterbody. However, the features are named correctly in the table of contents Ideally, I ...
2
votes
1answer
156 views

Combining Geological Grids and extruding between them?

I have a situation where I have 3 Geological grids, each showing a different horizon + the Seabed Grid. I need to extrude between these grids in order to make the 3D polygon for the geological ...
1
vote
0answers
11 views

Error 000666, does not have OID with Locate Features Along Route in ModelBuilder

I'm trying to take a bunch of point data and determine what points of surveyed lines are closest to each point. To this end I have put together a model that loops through the line features and in ...
0
votes
0answers
6 views

Convert height Geoid EGM96 to Orthometric?

I'd like to convert the height data which is in EGM96 to Orthometric projection. Perhaps there are tools, like ArgGIS (I cannot find if ArcGIS can do this), or any formula that may help me.
2
votes
0answers
23 views

How to make added toolbar buttons exclusive?

I've added a toolbar to the QGIS mainWindow. Also I've added some checkable buttons to the toolbar. How can i now make my checkable buttons untoggle on QGIS default toolbars' checkable buttons press ...
3
votes
1answer
111 views

Shortest distance from polygon centroids to a line in QGIS

To get the distance of each polygon centroid from a line, I have tried the Distance to nearest hub algorithm from the Processing Toolbox. The distances I got from the algorithm did not seem correct, ...
0
votes
1answer
17 views

How to create heatmaps with small radius?

I am trying to visualize a set of pois on a map with the qgis heatmap plugin. It works great with a big radius but the layer is invisible for a small one (around 100 meters). I really need a small ...
3
votes
2answers
545 views

Cannot see OpenLayers under Plugin in QGIS 2.4

Although I have installed the OpenLayers plugin, I cannot see it in the list when I click on Plugins. Does anyone else have this issue?
0
votes
0answers
16 views

Breakline Format

Breakline Input File, Breakline Output file I get a breakline file from a CAD guy in below mentioned format. So I am calling this as a “Input” file. I am calling this as a “Output” file. I would ...
0
votes
2answers
241 views

Secure Print Service Failed to Execute

I have a web application that calls an ArcGIS 10.2.2 secure print service (accesses secured map services). I am calling the print service using a proxy page. Generally this works, but after roughly 30 ...
1
vote
0answers
36 views
+50

Grouping carpool participant addresses for network

I have a list of addresses of people participating in carpools to a workplace and a list of cars given by the workplace. Both lists change daily. I need to group people by their addresses and assign ...
2
votes
2answers
2k views

Creating non-spatial Many to One Joins/Relationships between tables

I may have missed a trick here but I can't seem to find a solution. I have a table of ~1.6 million postcodes, also containing co-ordinates, and a separate file detailing ~6000 a population with ...
0
votes
2answers
215 views

How to specify column names with v.in.ascii

I have managed to import a CSV file into a points vector file using GRASS v.in.ascii v.in.ascii --o input=test1.csv output=test2 format=point fs=, skip=1 x=2 y=3 z=0 cat=0 This is test1.csv ... ...
0
votes
1answer
19 views

GRASS failed to import ESRI ASCII grid

I'm a new user of GRASS 6.4.3 and I wanted to import ESRI ASCII grid. Raster file was unzipped, and in r.in.arc window I specified name for output, storage type etc. After it has run, raster didn't ...
1
vote
1answer
46 views

count how many times an attribute is repeated, using “field calculator”

I'm using Arcgis 10.2.2 there is a way to count how many times an attribute is repeated, using the "field calculator" to make a selection after example of repeating more than 20 times
2
votes
2answers
114 views

Invert gdaldem aspect

I am trying to identify lakes and other water bodies in a DEM file. The source file is located here. I am using gdaldem aspect to identify contiguous pixels with zero slope change. gdaldem aspect ...
2
votes
0answers
20 views

Separated, but combined polygons - unable to split. What determines that?

In Mapinfo it works well when splitting polygons if they are physically separated(non-combined). However, occasionally when conducting "multiparts to singleparts" in QGIS, some errors occur, although ...
0
votes
0answers
13 views

QGIS Raster Calculator (SAGA) with 2 conditions

I want to do calculate some equation on my raster and i need to use two condition. The tool Raster Calculator from saga seem to be perfect for me but i can not use an AND for use my two condition. ...
0
votes
0answers
12 views

MetaTiling in Openlayers 3

I'm new to OL3 and I'm using geoServer to serve tiles. For my application, some labels would disappear or get duplicated. I've done some research and it seems the solution is to use meta-tiling. I've ...
0
votes
0answers
25 views

Adding Field to Attribute Table Error Message [on hold]

I am using Arc GIS and When I atttempt to add a field (via editor mode) to a table I get this error message "Can not add field to selected table/feature class because it is in use by another ...
2
votes
1answer
24 views

Referencing fields in code block of Field Calculator in ArcGIS for Desktop?

I'm trying to use values from a field to fill a new field with a truncated version. The 'str.rindex' function is working out well, but I can't seem to figure out how I'm supposed to reference the ...
0
votes
0answers
17 views

Convert DateTime field to Just Date in Label Expression

I have a DateTime field (ex: CreatedDate) and would like to only show the date with the label. How would I setup the label expression to do this using python?
-2
votes
0answers
13 views

Visual hills (spikes) map [on hold]

Is it possible do a dynamic javascript map like this using javascript? Sorce: http://content.time.com/time/interactive/0,31813,1549966,00.html
1
vote
1answer
181 views

passing geocode results object to another file

I'm using a geocoding plugin (Leafet.GeoSearch) on a map and I'd like the results, being the LatLng point coordinates, etc available as a parameter for GeoServer cql filtered calls. It doesn't seem ...
3
votes
3answers
39 views

Drawing some points in QGIS 2.4 using Python

I'm new to PyQGIS so here goes: Give a new QGIS project, how can we draw some Points on the map? I tried the following but nothing showed up. Should they be placed in a Vector layer before they can ...
1
vote
0answers
14 views

self-service mapping tools

I've been looking for mapping software that will allow non-GIS-trained staff, or clients, to create their own maps. For example, CartoDB provides hosted mapping with a web interface that's reasonably ...
2
votes
0answers
13 views

Rotate symbol base on polyline angle

I am using AcadMap to bring in .shp files for polylines. I have AutoCAD tickmark block at midpoint but it is at 0 degrees (straight up). Is there any way to rotate block angle to match polyline ...
3
votes
1answer
102 views

ArcGIS 10. Convert dbf to csv or similar in ArcPy without cursors

I have many dbf's created by the Spatial Analyst Sample tool. I would like to convert those dbf's into csv's or space delimited (or any text for that matter). I can't seem to find the ArcPy equivalent ...

15 30 50 per page