A graph is a representation of a set of objects where some pairs of the objects are connected by link

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15 views

GeoJSON to routing graph

What are the best automated ways of placing the nodes and edges of a routing graph using the GeoJSON data of a multi-level building? What other data is needed (area layout, accessor directions etc)?
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35 views

How to embed ArcMap graph into winforms dialog using .NET/C# and ArcObjects?

I am creating an addin for ArcMap in csharp and want to add a graph to a dialog. The native arcgis graph control doesn't seem to been available from the visual studio toolbox. I can't figure out ...
1
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0answers
29 views

How do I generate a drainage area-slope scatter plot from ASTER GDEM data

I have ASTER GDEM catchment data. I've installed the TauDEM tool. How do I generate a Drainage Area-Slope scatter plot?
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1answer
22 views

Create multiple bar graphs out of a single data table

I have data for obesity rates and alcohol consumption for 20 different countries, all in the same data table. I want to create 20 separate bar graphs, which I can then place over each country to show ...
0
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0answers
19 views

Create city connectivity network from OSM

How does one go about creating a city connectivity network from OSM data? For example, city A has a road connecting it to road B, thus nodes A and B have an edge between them.
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0answers
24 views

How to generate histograms of multiple fields?

I have a large shapefile and I'm trying to automate a process to generate histograms of several fields with the MakeGraph tool, but I'm receiving the following error. class ...
2
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2answers
40 views

Formula for charting a course around the globe, given a location and degree heading?

I'm looking for a formula that takes a long/lat coordinate and a degree heading, (e.g. "I'm standing in San Francisco and I'm facing 45º from north"), and which can draw a line across a map projecting ...
2
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0answers
76 views

How to extract polygons from a road network?

I need to extract faces (or polygons) from my road network and calculate their areas. I mainly use Arcpy packages but even if you know it in QGIS APIs, I'd appreciate if you'd share it with me. If it ...
0
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1answer
37 views

Exporting ArcMap produced layer file histogram?

I could simply take a screenshot, or reproduce it in other software, but what I see when I go to layer properties>symbology>classify is perfect for what I need. The only thing is it would be nice ...
2
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0answers
82 views

ArcPy Add Graph Window

The arcpy MakeGraph_management tool suggests that a graph is stored via an in_memory representation that can be either: added to the host app or saved using SaveGraph_management. The graph appears ...
1
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0answers
77 views

Displaying graph with value scale on Y axis using ArcGIS for Desktop?

I have to symbolize my vector layer with Bar Graph in ArcGIS for Desktop. Along with the graph i have to display value scale on y Axis. Is this possible? I am using ArcGIS 10.2 for Desktop but ...
6
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1answer
194 views

What are the existing datasets of world maritime routes?

I have a list of cargo ports of all over the world and need to show some port-to-port trips on a map, and also to compute lengths of these trips. For that, I need a dataset of actual maritime routes ...
0
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1answer
204 views

Using Z and M feature geometry to create line graph in ArcPy/Python?

I am a Python (v2.6.5) noob trying to plot a series of 3D polylines into graphs. So far I've come up with: # Import system modules import arcpy, os, sys, string from arcpy import env ...
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1answer
88 views

Loading graph (.grf fle) into MXD using ArcPy?

I have hundreds of pairs of FGDB and associated MXD files. I need to insert a graph in each mxd linked to its corresponding FGDB. No problem creating graph, but stuck on how to get graph into mxd ...
2
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0answers
57 views

How to add nodes into graph

I'm new to qgis and in here I want to find a path between two selected points on the map(Roads-vector layer). The points are selected by the user, using mouse clicks. So here I used the astar ...
2
votes
2answers
136 views

Why is arcpy.StackProfile_3d -> arcpy.SaveGraph_management creating empty graph?

In a python script I'm trying to save a graph to a .png file with graph output from arcpy.StackProfile_3d but the .png file shows an empty graph. The table created from arcpy.StackProfile_3d shows ...
1
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1answer
178 views

How to create graph out of two layers using ArcGIS 10.1 for Desktop?

I would like to create a graph of two layers I have. on one hand its the land price of a certain area and on the other a layer with a crime rate. first of all, the layer with the land prices doesnt ...
1
vote
1answer
528 views

Can't select layer in the Road Graph plugin QGIS

I'm trying to use the Road Graph plugin in QGIS 2.2.0. I have tried a few line shape files, but it won't let me select the layer (the option is greyed out). I've tried adding a 'SPEED' field and a ...
2
votes
1answer
225 views

How to create a x-y scatterplot from attributes in QGIS 2.0?

There are a few old packages that allow the creation of x-y scatter plots from attributes in vector data (Scattergram for 1.7) http://plugins.qgis.org/plugins/scattergrammidentify/ (SPQR for very ...
0
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1answer
84 views

Softwar to draw graph from a OSM map

This is my first time asking here so forgive me if something isn't appropriate, and sorry if my English isn't very good. Im new in OSM, I have downloaded the data of my map from OSM using the JOSM ...
2
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0answers
60 views

Generating Tiles for Non Geographic Datasets [closed]

Excuse my ignorance if this exists. I don't think I've seen a website ever using something like this. Have tools been developed that use general tiling methodology to implement non-geographical data ...
1
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0answers
166 views

Drawing a road network: offsetting overlapping lines (directed graph)

Say I have a road network defined by a table, indicating, for each arc, its ID, and its head and tail node. In other words, my network is defined as a directed graph. For example, we have two points, ...
2
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0answers
46 views

What graph traversal algorithm should I use?

I would like to write an algorithm which can traverse a graph and hopefully later I can implement it to use for an indoor navigation system. The graph would come from floor plans of a building and the ...
0
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1answer
716 views

How to build a Spatialite road network from OSM data

I'm looking for algorithm which could help me with building my own road network (for routing) from OSM data. I chose Spatialite DB for this, but here I have only one problem: Spatialite provides ...
5
votes
1answer
153 views

How to filter the graph on which I want to find the shortest path

I have a large graph that contains edges of Europe. I want to calculate the shortest path between two points on this graph with pgRouting that have a function pgr_trsp for shortest path calculations. ...
3
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2answers
567 views

How to rotate external graphic using mouse in Openlayers?

I would like to rotate externalGraphic using mouse something like this URL. In this URL polygon is used to rotate it but I want an image to be rotated using external graphics tag. Any help is ...
4
votes
1answer
449 views

Problem: Arcpy Graph function empty graph output

Background: I have some python code that I need help with parameter passing into the MakeGraph_management arcpy function. I would like to create a two-series vertical line graph for every pair of ...
3
votes
1answer
180 views

Bar graph - cartodiagram in QGIS

Can I create a cartodiagram in QGIS 1.7.3? I need one bar graph in every territorial unit of one layer. It must vizualize organization on X and number of research in one organisation. Is it possible? ...
1
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0answers
166 views

Adding charts to OpenGeo suite SDK

I just wanted to gauge the work flow for adding charts to a map using the SDK that comes with OpenGeo suite. I know it seems a vague question I'm just trying to get my head around it :/ So far the ...
2
votes
1answer
130 views

Creating pop-ups on point layers

i have a postgresql database which is refreshed all 10 minutes and i need to create graphs in pop-up with the data. When i click, a pop-up (or annotation ?) appears. How can i make it possible ? ...
1
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0answers
64 views

About symbol position

I have to draw in ArcGis a graph which has the end points of each segment with a circle. The circle has to be unique at the same point when two or more end points are coincident. I’m using the font ...
1
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1answer
38 views

What each stack element does

Im using the opengeo stack, and want to double check my understanding of each element. PostGIS - The database for storing my data GeoServer - The link between the online part / the database Here's ...
1
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1answer
1k views

Using Dijkstra's algorithm for multiple source to single destination shortest paths

I'm going over a lecture recording, in it my professor mentions using Dijkstra's algorithm (or a modified version of it) to find multiple-source to single source shortest paths, e.g. finding the ...
2
votes
1answer
125 views

arcgis graph vs .net graph

I am trying to show some elevation/cross section data in a graph. I am trying to do this in arcgis graphs. But because of my previous graph work was in .net, I found arcobjects.net API for graphing is ...
1
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0answers
152 views

How to extract an adjacency matrix from OSM?

I would like to use graph algorithms from the Boost graph library on OSM data. What are my choices to use Openstreetmaps data from within a C++ program ? I need at least a flat file with a list of ...
2
votes
1answer
210 views

Using histogram in ArcGIS 10 with dates and sum of values

I have a point feature layer in ArcGIS. I want to add a histogram which shows a histogram for selected points. This works perfectly. Two problems: I have a datefield, which spans about three years. ...
1
vote
1answer
139 views

Display mouse position from graph on a map

i need to develop a web application which shows a map, that displays a GPS Route. So far I can do this using Openlayers or ArcGIS Server. Now I want to add an interactive graph below the map. In this ...
1
vote
1answer
371 views

Data Driven Pages, Graphs, and selections in ArcMap 10.1

Is it possible in python to create a selection set based on the extent from a Data Driven Page (DDP)? I have a layout view with a map and a graph. The graph is set to only plot the selected set of ...
3
votes
3answers
479 views

Visualization of a big graph in 3D from postgresql/postgis

We have a graph in 3D in a PostgreSQL/PostGIS database. It contains something like 50'000 edges and 50'000 vertices, with x-y coordinates and floors. We would like to visualize this graph with ...
2
votes
0answers
135 views

Plot the Shortest Paths in a Grid without any clash at a point of time

The efficient algorithm needs to be done and proved for the best solution for the given problem: User inputs: (#) Size of the NxN Grid. (N); (#) No. of Paths: Z; (#) Source and Destination ...
4
votes
0answers
257 views

Make Graph (Data Management), Changing item names in legend

I'm having python produce a multi-series graph. How do you change the series name in the legend, the default being Vertical Bar, Vertical Bar1, Vertical Bar2.... Thanks for the help ...
6
votes
2answers
252 views

How can I turn a vector layer into a graph G = (V, E)?

I have a number of rail networks, in the form of shapefiles of the "line" type. I want to turn them into a more abstract graph format, i.e. the kind with vertices and edges, not chart-type graphs. ...
2
votes
1answer
434 views

What software would be useful to create General Transit Feed Specification (GTFS)?

I am doing a project in which i am required to create GTFS. I look at transit google developer forum which provide a format to create feed but that completely have to done by hand (we have to write ...
4
votes
1answer
736 views

Elevation graph from GPX file

I've got many GPX files in the following format: <?xml version="1.0" encoding="utf-8"?> <gpx xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" ...
6
votes
3answers
1k views

Find a proper path between two nodes in a grid

This question is about finding a proper path (route) between two nodes (P,Q) in a grid (i.e., graph, network, ...). In our concept, we define a path proper (nice) if it is the most similar* to the ...
2
votes
0answers
308 views

On using R data with ArcPy to make histogram in ArcMap

I am writing a tool in python which passes parameters to a R script, which in turn creates a DBF file. I read this DBF and want to make a histogram out of the data inside ArcMap as one of the results ...
6
votes
1answer
340 views

Accessing graph in ArcMap document using ArcPy?

I am trying to access an existing graph in an ArcMap document with arcpy. I know how to create a new graph with arcpy, but I cannot seem to figure out how to access an existing graph in an ArcMap ...