0
votes
0answers
2 views
Problem reprojecting LIDAR data with Liblas
I am currently trying to reproject a LIDAR file (.las) using the Open-Source LibLAS, compiled on a Scientific Linux server.
The Original data is in Oregon Lambert, NAD83 (EPSG:2992), and I am trying ...
0
votes
0answers
4 views
Can osm2po produce a travel distance buffer for a given time?
Given a starting point and a travel time, I would like to produce a travel distance polygon. Can I request this from osm2po via http?
1
vote
1answer
11 views
How can I confirm the existence of pyramids in QGis?
I have created pyramid layers for my ASTER satellite images (.img) using Gdal Tools "Build Overviews" (Pyramids). The dialog said "Processing completed". I don't have the impression that zooming in or ...
1
vote
0answers
12 views
Lack of Options in Gdal Tool “Build Overviews” QGis
I am using QGis 1.8 and I want to build overviews (pyramids) for satellite imagery using the Gdal Tool. I would like to use the resampling method "cubic convolution", but the option doesn't exist ...
0
votes
0answers
6 views
GeoExt: Turning off layer title in legend
I am using GeoExt for my web mapping project. My web map includes a legend generated by GeoExt. Is it possible to turn off the layer title for a specific layer in legend? I am aware that there is a ...
0
votes
0answers
4 views
Is that possible to use map object ( PHP_MapScript ) instead of map file when using the MapServer?
In my previoous code, I am using openlayer WMS to load a raster data through MapServer. As you can see, the mapserv.exe call a local map file to load the raster data. I just heard PHP_MapScript, since ...
0
votes
2answers
10 views
database server connection to MSSQL Server with ArcCatalog not possible?
I have a MSSQL Server where my geodata is held. In the ArcGIS Docs, it says...
"To administer ArcSDE geodatabases for SQL Server Express, you can also connect to these geodatabases by first making a ...
0
votes
1answer
18 views
Understanding ArcGIS Server connection types
Being relatively new to ESRI ArcGIS Server I have a question regarding the storage of ESRI SDE Databases - AGS 10.0 Enterprise and ArcSDE 9.3.
Firstly the naming of the whole structure gets ...
1
vote
1answer
18 views
Main OpenStreetMap-based sites?
I don't like the way the standard OSM maps look (too much details), and would like to check if some OSM-based services are better than Google Maps.
"List of OSM based Services" doesn't list them by ...
0
votes
0answers
16 views
Finding dead end streets on GoogleMaps or OpenStreetMap?
I no longer ride my motorcycle and would like to sell it.
To let buyers go for a test ride safely (ie. they won't ride away with it), I need to find a dead end street (impasse) wide and long enough ...
-2
votes
0answers
7 views
can i meassure area of a rectangle plot using gps? [closed]
I have to calculate area of a polygonal shape plot using latitude and longitude instead of using meter tapes. Is it possible calculate length in centimeter/millimeter?
1
vote
0answers
14 views
WFS features not added to layer
I have some issues with a OpenLayers/GeoServer setup, I am trying to set up a saveable Vector layer using WFS, the saved vectors shows up perfectly on the WMS layer I created but never on the wfs one. ...
0
votes
1answer
19 views
arcpy update cursor: can't connect to a database table
I am using updateCursor to retrieve some rows from a non spatial table using a connection of type "Spatial Database Connection" (That creates a .sde file) from ArcCatalog.
However, it doesn't work, ...
0
votes
0answers
9 views
Clustering using query task in ArcGIS JSAPI 3.5
I am using query task to add clusters but it is not working and using 1000 points in my layer for clustering.
My detail code is on JSFiddle (I have used arcgis sample server REST link instead of my ...
1
vote
0answers
17 views
Geographic Transformation
I have an Image with the following metadata:
Projection Information :
Projection Zone : 0
Spheroid Name : Modified Everest
Georeferenced to : RSO
Map Information :
Upper Left ...
-1
votes
0answers
17 views
Get the field value of a polygon
how can i get the value of a feature class field in ArcGIS? I'm using Visual Studio and C#.
I found IField and IFeatureClass but I'm not sure how to use them.
More specific, I need when a user ...
-1
votes
0answers
31 views
Calculate area of group points
I have polygon and I add another layer which contain points on this polygon and want
to Calculate the area of the point and subtract it from the area of polygon. I'm using esri ArcGIS 9.3.
0
votes
2answers
27 views
How to handle an “Input CRS error” when clipping?
I'm trying to clip a soil use shapefile, with a polygon I've created this morning. The clipping function works, but the clipped polygon doesn't have features (the table of contents is empty). QGIS ...
1
vote
1answer
12 views
Color ramp in multiple attributes symbology (Arcmap)
I am trying to use the "multiple attributes" symbology tool in Arcmap 10.
I would like to divide my data in 2 categories. For each categories, I would like to display a color ramp.
I read ESRI's ...
0
votes
0answers
5 views
Size of items in a AxSymbologyControl
I'm working on an Engine application, and we use WPF when creating our UI. We've got a dialog for choosing scalebar styles, and it's setup using a WindowsFormsHost. Unfortunately the items in the ...
0
votes
1answer
17 views
FeatureClass to IFeatureLayer
I am trying to covert my feature class to feature layer so that i can pass "IQueryByLayer" over my feature class.
Till now i have my feature class ---
FeatureClass className = new FeatureClass(cc);
...
0
votes
0answers
16 views
problem when georeferencing rasters with QGIS 1.8
I have a problem when georeferencing rasters with QGIS 1.8
I use the procedure (learned with QGIS 1.7) step by step making sure to specify the coordinate system.
I check the points used for ...
2
votes
2answers
38 views
How to rotate North oriented Map [duplicate]
I want to rotate my North oriented point shapefile to 45%,is there any way to rotate it QGIS or Mapinfo?
Thanks,
RKM
0
votes
0answers
12 views
Service Token usage by applications authorization
As developers we are using Token based Service security concept with proxy to protect the tokens.
I wanna understand something about tokens. A developer is using a token that given by ArcGIS Server ...
1
vote
0answers
10 views
Map Identify tool in ArcGIS Server 10.1
I tried this http://tereshenkov.wordpress.com/2010/08/16/map-identify-tool-in-arcgis-server/ but it doesn't work on ArcGIS Server 10.1 (.NET Web ADF) :-(
Application doesn’t use file MapIdentify.js. ...
1
vote
1answer
19 views
GeoExt: Excluding some of the layers from the legend
Openlayers and GeoExt for producing a web map. The map has a legend panel generated by GeoExt. By default, GeoExt grabs the details of every layers from the map and create a legend for all the layers. ...
1
vote
1answer
13 views
Is there any way to create elevation mesh plot in arcmap 10.1
I am using arcmap 10.1. I have data with elevation value.Now i want to create mesh plot (as created in golden software surfer).
How to do this
Thanks in advance
0
votes
0answers
19 views
How to Calculate Shortest Path Routes for Multiple Start and End Points?
I'm new to QGIS and was wondering, is there a way to calculate shortest paths along roads for multiple sets of points? So basically what the roadgraph plugin does but for a series of start and end ...
1
vote
0answers
8 views
Algorithm to compile Lisiecki stack? (5MM-yr Temperature Record)
I have obtained the Lisiecki stack data from www.lorraine-lisiecki.com/stack.html
How do I convert the d18O measurement into a figure for average surface temperature? What is the best algorithm?
I ...
0
votes
0answers
13 views
How to get The character spacing from a ITextElement arcgis engine 9.3 C#
i have a problem.I can set character spacing to a IElement as ITexElement like :
TextSymbolClass pTextSymbol = new TextSymbolClass();
pTextSymbol.CharacterSpacing = 10 ; //etc
...
0
votes
3answers
28 views
Displaying a KML File on a Vector Layer in OpenLayers
This should be straight-forward, but I am beating my head over it. KML will not display. I have tried from same server and remote server to ensure it is not a cross-domain issue. The KML file loads ...
1
vote
0answers
18 views
Seeking free nautical route planner
Not actually a route planner, but it amounts to the same thing.
I want to know the distance a vessel at sea must travel between two points. Obviously this isn't just a straight line thing, if there ...
1
vote
1answer
20 views
add a Custom search to an openlayers map
I have looked at this thread: add location search to openlayers map
But it is not the result that I am trying to achieve.
Probably best if i show you: ...
0
votes
1answer
22 views
make layers with different resolution work together
I have to create two WMTS layers and add them to the map.
But the two layer have a different tileOrignal and resolutions and coordinate.
For example:
Layer1:
tileOrignal:[-180,90] with coordinate ...
0
votes
0answers
16 views
Creating a link layer by connecting a point layer to a line layer
In the map shown below, I have manually created the dummy lines (in green).
Using python, and without using PostGIS or sextante, I would like to automate the creation of these dummy links between a ...
0
votes
1answer
20 views
Problem with loading ArcGIS Javascript API sample locally
I'm new to the ArcGIS Javascript API and I'm trying to set up a local development environment for a web application. I'm having trouble with getting on of the example scripts provided by ESRI to load ...
0
votes
0answers
24 views
Reprojecting GeoTIFFs to WGS84/UTM
I'm using libgeotiff and proj4 to read and (try to!) process GeoTIFFs. After reading the file, I want to get the corner coordinates in WGS84/UTM - but there are so many functions and parameters to try ...
2
votes
1answer
34 views
Erase features from feature classes based on record ID?
Please help resolve the following challenge:
I have two feature classes, which have the same number of polygon features, that when overlaid form concentric "rings." I need to erase the inner circle ...
1
vote
1answer
29 views
How to create a drop-down list of geoprocessing tasks?
I need to construct a drop down menu with each choice enabling a different geoprocessing task to run over my script.
<select id="myList" onchange="environment()">
...
0
votes
1answer
78 views
Are there Open Source alternatives to ArcGIS Aggregate and Extract Value to Points?
I am looking for some kind of Open source GIS library which can perform spatial analytic functions same as ArcGIS.
My use case is : I am processing GeoTIFF file provided by USGS and performing ...
4
votes
1answer
30 views
Pick random points in an earth circle
All I need is the ability to create random points within a radius of another point.
so given self.fence.latitude and self.fence.longitude and self.fence.radius I should be able to generate random ...
1
vote
0answers
21 views
how to differentiate between common parts of the triangle and extract linestring from it
Can you help me break down shape A to different linestrings: lines 2 & 3 AND line 1? The shape contains three different polygons (A, B, C). I wish to determine the start/end point of each part ...
2
votes
1answer
19 views
Adding “SelectByRectangle” tool to ArcMap custom toolbar Add-In
I am able to show the other esriArcMapUI selection tools in my custom toolbar, but "Select By Rectangle" does not appear.
What is the correct Tool refID of it?
<ESRI.Configuration ...
1
vote
0answers
12 views
District border join in Google maps
I am developing a district editor for cities. The idea is that we divide the city into districts. I am using GoogleMaps, but any other js library is acceptible.
Problem 1: districts are connected ...
5
votes
1answer
68 views
Python - formatting path strings and checking if a path exists
I would like to use the following code to determine if a path exists. The path I would like to check is being passed to my code via parameter on a ArcMap 10.0 tool dialog box. The parameters data ...
2
votes
2answers
67 views
how to remove underscore from filename in directory using modelbuilder
Does anyone have a script I can use in modelbuilder that will?:
parse an "_" from a filename
usable in modelbuilder with an inline variable (%name%) and Feature class iterator
transfer or copy the ...
2
votes
0answers
20 views
Rounding error in qgis point sampling tool
I'm not sure if this is a bug or of it is due to the implementation. I am using a raster that has values greater than 1,000,000 and Qgis displays these numbers in a scientific notation. For instance, ...
1
vote
0answers
12 views
Permanent Histogram Stretch with QGIS or FWTools
Is there a way to permanently stretch a histogram of a raster within QGIS or FWTools? I would like to stretch a satellite image with a Standard Deviation 2.5 stretch. I would prefer to use QGIS or ...
0
votes
2answers
41 views
Why can't I select any of the tools under “edit”?
Why can't I click any of the tools under "Edit?" I want to merge selected shapefile layers together, but all of the tools under "edit" are greyed out.
0
votes
0answers
27 views
QGIS: After performing a table join, all the fields are “NULL”
Within QGIS, I joined .dbf table containing population data to a shapefile of Census tracts.
The join field is called GISJOIN in both the target table and the shapefile's table, and this attribute ...
