representation of an object

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79 views

Arcgis 9.3 Conditional Statement

I'm having trouble performing calculations with single output map algebra ArcgIS 9.3 using conditional statements and applying it to several model outputs as they are generated: The statement is: ...
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1answer
43 views

Create New Feature Class Based off Multiple Feature Classes

I've searched previous posts to see if anyone asks a similar question, but I haven't found anything. I have a multiple feature classes, each containing multiple polygons. I have two desired outcomes: ...
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0answers
103 views

Can layers from Spatialite db be used as input for a Sextante model?

I'm trying to build my first models in SEXTANTE and already fail at the start. It seems not to be possible to add a vector layer which derives from a database. Orginally, the layers are from a .mdb. I ...
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328 views

How to solve the problem when buildings are extruded without roof?

I tried to extrude buildings in ArcScene with Extrusion function in Layer Properties. But most of the buildings seem like only their walls are extruded. Instead of solid blocks, they appear like no ...
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0answers
31 views

Best Watershed and Hydraulic Models, What is your recomendation?

I am looking to model phosphorus, nitrogen and sediment loads at the watershed and sub-watershed scale in Southern Ontario where the primary land use is agricultural. What is the best model to use? ...
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0answers
26 views

Data occurrence in openModeller?

I am having problems adding occurrence data to openModeller and I think that the format might be the problem. I am using Excel with the fields: #ID Taxon Name Longitude Latitude. I saved the result ...
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0answers
100 views

Gaussian plume model in PostGIS or geocouch

Does anyone know of existing code for dispersion modeling using Gaussian Plume or comparable model, that I could plug in / adapt to be used programmatically from PostGIS or alternatively via ...
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0answers
71 views

How to use Record Set to prepopulate table in ModelBuilder?

I'm running ArcGIS 10.2.1. and am trying to prepopulate a record set in model builder. The record set is set as a Modeled Parameter. I open the record set enter the information into the table and ...
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0answers
334 views

SAGA kernel density error with Sextante Modeler

I can succesfully perform SAGA kernel density analysis with Sextante (1.0.7) in QGIS 1.8.0. But i want to built an automated tool for this job with Sextante Modeler. But i got foolish errors. This ...
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0answers
169 views

How to create a dynamic distance calculator for selected line feature classes?

My situation: I am relatively new to GIS so forgive me if this is a stupid question. I am working on a project at a park that I am interning at where the goal is to create a single feature with ...
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18 views

Handling Users and Permissions in Django Admin

Am developing an application where public will have to fill in a form (apply for service) and the applications received in ApplicationsAdmin.The applications are to be verified by a user from one ...
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21 views

How to calculate probability of binary outputs of n iterations without saving each individual layer?

I am trying to calculate mean raster of n runs in model builder each run creates a binary raster which represnt whether a flood got to a pixel or not i want to calculate the probability for flood in ...
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8 views

Various year data model diffusion

I'm using ArcGIS 10.x and I would like to do a simple model of invasive species diffusion. I have read about the new Diffusion Interpolation with Barriers and Kernel Interpolation in Geostatistical ...
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0answers
70 views

Errors trying to use MDOW Hillshade Model (ArcMap 9.3) in ArcMap 10.2

I am attempting to use Hillshade Tools to generate hillshade from a DEM. I am using ArcMap 10.2.1, and it looks like the tool is made for 9.3. Anyway, I get this error 000875: "Output raster's ...
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0answers
137 views

Creating a 3d terrain model using a DEM raster file

i have a DEM Raster file and i would like to create a 3D Terrain Model using ArcScene. Is this possible, if yes, how? Thanks.
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82 views

Doing joint hypothesis test in spatial regression using R?

I'm doing estimation of spatial lag/error model using R package "spreg"/"spdep" but I cannot find any method to do anhypothesis test after regression. For example, I want to test whether two ...
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67 views

Sort polygons from north to south in QGIS using 'graphical modeler'?

I'm building a model in 'graphical modeler' in QGIS 2.2. I want my model to clip a polygon layer and give the polygons coordinates so that I could sort them geographically from north to south. After ...