Questions tagged [simulation]
The simulation tag has no usage guidance.
35
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Convert shapefile data to NMEA - simulate NMEA positions from shape data
To generate waypoints to be read by the agricultural GNSS-RTK-steering system CEREA, I am looking for a way to simulate NMEA strings of a GNSS receiver by clicking the edges of the boundaries of ...
CommunityBot
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Generate simulations using variogram with given mean and standard deviation
I am trying to generate simulations using variogram using the R code below
library(sp)
library(gstat)
library(ggplot2)
library(tidyverse)
library(dplyr)
library(reshape2)
# Call data
points <- ...
- 67
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Generate unconditional simulations with same nugget, sill, and range
I am a newbie with gstat and unconditional simulations. As I understand, unconditional simulations should have the same nugget, psill, and range, but they do not (except nugget) when I use gstat in R. ...
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Speeding up QGIS Processing
My QGIS processing is pretty slow. Even using "fill sinks (wang & liu)" or "r.fill.dir" takes many hours to finish even though I use a "Intel(R) Xeon(R) Gold 6258R CPU @ 2....
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Alignment of raster files(.tif)
I have 5 different .tif files and all of them have the same bounding box(same starting and ending coordinates), but the number of rows/columns are different in each one of them. I want to make the ...
- 20.1k
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OSError: [Errno 13] Permission denied: 'restart/snapshot_Quad9_p0000_i00001124.xmf'
I had fix the code before, but now it got me error like this. I didn't know what's this mean
Titan2D v4.0.0
Traceback (most recent call last):
File "simulation.py", line 83, in <module&...
- 81.5k
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180
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SyntaxError: non-keyword arg after keyword arg python [closed]
I'am working a project about hot clouds volcano mountain simulation with Titan2D v4.0.0 but I got error when I try to run the simulation.py
sim.setGIS(
gis_format='GIS_GRASS',
gis_main='/home/...
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Problem in running r.sim.water
I am trying to run the r.sim.water in GRASS. I have calculated the partial derivatives dx and dy rater map using r.slope.aspect. I am using this elevation map [1] to get the time-series depth map. But ...
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What is the best way to create a line of sight simulation raster? [closed]
I have been tasked to create some sight-line simulations for a powerline project. I have several (85) observation points and need to create a simulation of what the view would look like, looking from ...
CommunityBot
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Satellite moving target tracking simulation
I am trying to create a Simulation of an earth-pointing satellite.
The satellite should track a moving target on the ground via an on-board camera.
How can I calculate the goal attitude of the ...
- 20.1k
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Creating post landslide simulation using ArcScene?
How do I create a simulation for post landslide with ArcScene?
It should able to show xyz plus velocity and thickness of debris at different time.
- 65.2k
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568
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Is MATSim useful tool for Taxi fleet simulation?
I am working on a university project and I seek some advice:
My project consists in modeling the taxi fleet of a major city and investigating if replacing a percentage of the fleet with electric ...
- 65.2k
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143
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Changing slopes derived from DEM using ArcGIS Desktop? [closed]
I have a DEM for a region over which I want to simulate an ecological process. I would like to run several simulations for the same region but I want to alter the topography for the simulations. ...
- 65.2k
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Run Schelling's model of segregation on a geographical map instead of the matplotlib plot or grid
If you don't know what is Schelling's model of segregation, you can read it here.
I have written the following code to run the Schelling's model of segregation simulation.
import matplotlib.pyplot ...
- 65.2k
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Choosing diffusion coefficient and other parameters for r.sim.water in GRASS7?
I'm trying to run r.sim.water in GRASS7 to simulate overland flow during a heavy rain event.
My DEM has a resolution of 1m. I prepared it by adding values for buildings and included ditches and ...
- 10.3k
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Seeking GIS tools for simulating landscape fragmentation?
I am currently looking for any GIS packages (or add-ons) that allow the simulation of landscape fragmentation on raster data.
Maybe also other software than GIS tools?
Does anyone of you have had ...
- 65.2k
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1
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Using OpenStreetMap for simulation of commuter routes? [closed]
I'm seeking some advice on how to build a simulation based on OpenStreetMap Data for my masterthesis. My knowledge of spatial data is very limited, since I come from another field of science, namely ...
- 65.2k
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1
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Simulating moving vehicles using ArcPy? [closed]
I have a point layer (stored in SQL Server 2008) that is being served up by a map service in ArcGIS Server 10.1. I am consuming this service in a web client.
Lets say the points are boats out at ...
- 65.2k
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population density "hotspots" within ZCTA
With the available census tables (county, tract, block, zcta) and shapefiles, is it possible to identify "hotspots" of population concentration within a ZCTA?
The ZCTA gazeteer file provides the ...
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Add variables to an existing netCDF file in R
I have a netCDF file with one variable 'gpwcount' and its lat/lot coordinates also available. The dimension of this 'gpwcount' variable is 1050 rows x 1050 columns. This file consists of population ...
- 2,011
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Simulate random error on data with pyqgis
I am developing a small tool to complement GPS data with mutual distances, and I need to simulate some input data. So I thought I would introduce a normally distributed error on the (known) positions, ...
CommunityBot
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Monte Carlo simulation using QGIS and pgRouting on optimal sidewalk construction
I am new to spatial analysis and would appreciate some general direction on a project I am attempting, outlined below (I am starting from scratch).
GOAL: To find the best locations to install 2000 ...
- 16.2k
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Agent Analyst extension for ArcGIS [closed]
I am trying to create agent based model for simulating movement of occupants in different rooms of different floors of a building. I am using Agent Analyst tutorial downloaded from ESRI website and ...
- 65.2k
2
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Generate sample (Gaussian distribution) and store simulations in raster stack in R
I have a raster stack, one of the raster layers is the mean prediction of a property for that pixel, the second layer is the variance of the prediction.
I would like to write a function for ...
- 31.8k
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345
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Create repeating pattern of raster or polygons in ArcGIS
I want to create a repeating pattern of raster OR polygon features based on an existing sample, so that the sample fills up a larger area in a repeating pattern. For example, with a sample of 10x10 ...
CommunityBot
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Creating network simulation / temporal models for videos? [closed]
I know of ArcGIS Tracking analyst and QGIS Time Manager. I have a transportation network with time based schedule for buses. I will create time aware shapefiles from this data. Is it possible to ...
- 65.2k
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3
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Creating a simulation of how people moving around a site
I am working on a project aiming to create a geographic simulation for how people interact around a site.
Situation: There are x people in an enclosed area (such as a zoo). There are y locations to ...
- 10.3k
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571
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Testing tools to simulate user map browsing / stress test tile server?
are there any online/offline tools that would simulate user map browsing behavior, possibly concentrating on certain areas or random?
I am trying to stress test a tile server.
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Simulate water runoff to get water height over each pixel of DEM
Here is my problem that I am trying to deal with.
I have given a height map of around 512X512 resolution(It is Geo-referenced and I have the meta-data for this). And I have given that this area ...
- 13k
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I have n points, how do I find the closest one from a point p by road?
I'm currently working on a map with stores and clients. I want to find the closest store by road from a given client, with the aim of simulating the creation of a new store.
Requirements:
...
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Is there any pseudocode for MFD (multiple flow direction) algorithm available?
Still stuck with the simulation system, is there any good pseudocode for the multiple flow direction (MFD) algorithm? I read a pseudocode example and implemented it, however the simulation was linear: ...
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How to create the fuel models & live fuel moisture rasters for Wildfire simulation?
Has anybody done wildfire modelling in GRASS? Where could I obtain / how do I create the fuel models and live fuel moisture rasters to determine rate of spread (r.ros)?
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Is there a standard data model for storing traffic volumes, layout, lanes, timing and phasing information?
I am at a crossroads where I want to store more than a scenarios worth of project data from a Synchro study, but do not want to keep this data in a series of text files. The data output by Synchro is ...
- 35.8k
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How to use GRASS with HEC-RAS?
I am trying to use HEC-RAS for the flood modelling of my flood simulation. How do I use the text file output of HEC-RAS with the GRASS script r.inund.fluv?
- 13k
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Simulation envelopes and significance levels
Many spatial analysis packages provide Monte Carlo techniques to simulate upper and lower “envelopes” for a summary statistic as a function of distance (e.g. K-function, nearest neighbor, etc…). I’...
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