Questions tagged [model]

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Set layer different style to multiple layer at once in model designer

I made a model that generates multiple layers Among other entries, a style file is required as input that I use to set one of the output layer. I would like to use a folder input and to set multiple ...
Biorix's user avatar
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101 views

Logistic Regression Coefficients Interpretation for Land Use Prediction Modeling Using MOLUSCE Plugin on QGIS

I was trying to model a Land-use prediction map using MOLUSCE Plugin on QGIS. For the input, there are 2 land-use data (2011 and 2016). Each land-use consists of 7 land-use classes (0 to 6). There are ...
GIS learner2012's user avatar
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79 views

3D Model to shapefile

What workflow are available in converting 3d Model into shapefiles? I need to import a model to use as a floor plan in GIS software use. I am able to export the model into different file format to be ...
Er Re's user avatar
  • 103
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97 views

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. ...
Happier's user avatar
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4 votes
1 answer
878 views

QGIS Naming Model Outputs using attribute from input layer

This is the first QGIS Process Model I have ever attempted to build (and I am still on a learning curve with QGIS generally). THE ASSIGNMENT: I need to build a model that will take an input vector and ...
ManWithQuestions's user avatar
1 vote
1 answer
149 views

Replacements QGIS/Excel

I have a field filled with expressions like these: 'Xm1 to Xm2'; 'Xm2 to Xm1'; 'Xm19 to Xm20' And I also have an imported Excel table with the correspondet text to replace Xm1, Xm2, Xm(n), ..., Xm20. ...
Rui's user avatar
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QGIS - How can I get the name of the source algorithm in a model script?

I'm trying to write a simple model script that accepts the result of a JOIN algorithm and I need to get the name of the source algorithm that feeds my script. My goal is to create a summary of ...
David C's user avatar
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1 vote
1 answer
139 views

Automatic / Parametric Grid generation across multiple polygons in QGIS

I have a following problem: I have a layer with numerous polygons inside (Over 400). I need to generate grids inside every polygon. When using the Grid process over a layer, the generated grid covers ...
WindTim's user avatar
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1 answer
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Object not found in R

I made a model (mod1) using variables from my data but when I try to use that model to make a prediction I get the error message "object 'gop' not found". mod2 <- stan_glm(filisave ~ gop +...
Nora Gallala's user avatar
1 vote
1 answer
45 views

Using combine function in QGIS modeler

I am trying to use the QGIS modeler with the 'combine' function, but when I run the model, it only gives me one choice of shapefile to choose instead of letting me choose more than one raster to ...
Guillermo's user avatar
1 vote
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Running multiple models within a Toolbox (.tbx) with 1 python script

I am trying to run over 80 models between 2 toolboxes. I know I can list them out to run them (example #2) but is there a way to iterate/loop through each model and run them one at a time without ...
AndrewT's user avatar
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-2 votes
1 answer
1k views

How to save Random forest classifier within GEE that can be called later for classification

var classifier_serialized = ee.Serializer.toJSON(classifier) Export.table.toAsset(ee.FeatureCollection(empty_feature.set('classifier',json)),desc,AssetName) // Load using this var json = ee.String(ee....
Deepak's user avatar
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1 vote
1 answer
44 views

Retrieve scale-value of a specific map in specific print-layout for using this scale in model-builder

I made a model with the model-builder which create a grid with its height- and width-size dependend on the size of a certain map in a certain print-layout. It allready works fine. But that for I need ...
daniel's user avatar
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31 views

R predict() a future table value in a time series

I have tree canopy information measured for 5 trees over 4 dates in the following CSV: treeID,X,Y,Z,area,date 1278,888260,936944,58.8,40.7,2021-09-22 1278,888262,936940,53.6,66.3,2021-10-15 1278,...
Searoy's user avatar
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2 votes
0 answers
129 views

Preventing output from being overwritten using QGIS Model Designer)

I have built a (simple) Processing Model with the Qgis Modeler. But I can't figure out how I can prevent the output from being overwritten. In this case (see pic), my last process is "Add ...
Samurai2020's user avatar
0 votes
1 answer
535 views

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....
Tom Kurz's user avatar
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1 answer
52 views

Tracing back single class sample sizes of a random forest classification model (.pkl-file) [QGIS 3.16 - EnMAP Box - RFC]

A couple of weeks ago, I created some prediction models with the EnMAP Box Classification Workflow. In some of the models I reduced the sample size for some classes as shown in the image below. Here, ...
jaysigg's user avatar
  • 497
3 votes
1 answer
181 views

Adding field containing expression from the Calculator field after executed model/script

I tried to use the refactor field processing after my model creates the two layers needed to calculate the expression: line_locate_point(geometry:=geometry(get_feature('LH_fusion', 'id', '1')), point:=...
Caligraphy's user avatar
3 votes
1 answer
151 views

Model designer: raster processing with high compression

I am new to QGIS, please excuse my probably very easy question to which I couldnt find an easy solution: I have many folders with each 9 raster files with different resolution (0.5 m - 2 m). In every ...
PDistl's user avatar
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1 vote
0 answers
126 views

Estimate cross-covariance of seasonality (NDVI) and precipitation data with a harmonic regression model then visualize a chart from the model

The challenge is to estimate cross-covariance of seasonality (NDVI) and 30-day precipitation with a harmonic model. I added the UCSB CHIRPS rainfall data as bands to all available Landsat 8 imagery ...
Debbie's user avatar
  • 11
1 vote
0 answers
78 views

Create an outline based on density of raster

I have a classified aerial image of small vegetation that is separated enough by ground that it is not overlapping each other. After the classification process (dzetsaka), I removed all the other ...
Binx's user avatar
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0 votes
1 answer
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Iterate a model with Python

I have a model that works well but I can't iterate with a batch process. Therefore, I would like to use a python script to iterate to avoid repetitive tasks. I want iterate my model (that I have ...
simone100's user avatar
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1 answer
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Convert "Get Raster Properties" output to long

I am building a model in ArcGIS (10.7.1) and I would like to use the maximum value of a raster as the "number of output zones" input to the Slice function. I used the Get Raster Properties tool to ...
teledude14's user avatar
1 vote
1 answer
36 views

How to export ArcMap model parameters to an Excel file?

I have a model where the user inserts different model parameters like "Name", "Elevation", "Threshold A", "Threshold B" and so on. Based on this, features get selected, saved to .xls files where they ...
Moe Schillinger's user avatar
4 votes
0 answers
282 views

Cannot use raster layers not defined as inputs in a model in QGIS 3.x

I have a problem in building raster models: both with QGIS 3.4.5 and QGIS 3.10.3, the raster calculator algorithm, used in a model, refuses to work if the requested layers are other than the defined ...
user122053's user avatar
1 vote
1 answer
209 views

Euclidean Distance in Model Builder error

I'm trying to use Model Builder to create Euclidean Distance raster files for a set of line features. Each line also have a buffer polygon that corresponds to each line that I want to have as an ...
Mutumba's user avatar
  • 213
1 vote
1 answer
359 views

Output of an algorithm in QGIS Graphic Modeler

I use two Processing tools in a graphic Model in QGIS: 1-Select by Location 2-Select by Attribute The problem is that I can't get the output of the selection by location so that I can't use it as ...
Namoat's user avatar
  • 307
1 vote
1 answer
920 views

spplot doesn´t work - sppanel error

I have this code (below) for plotting some information in a map, but it doesn't work, in the map appear only the error "sppanel", why I solve that? library(GWmodel) library(RColorBrewer) data(...
Arno Paulo Schmitz's user avatar
1 vote
0 answers
123 views

Clipping DEM model in QGIS?

I have created a model that takes a point layer that contains elevation data, then interpolate it using TIN and then clip the results according to shapefile. The problem is that the model works and ...
ReutKeller's user avatar
  • 2,107
1 vote
1 answer
380 views

What are the formulas used in SAGA Ordinary Kriging?

can some one name the formulas avaible in the Ordinary Kriging Modul of SAGA: What ist the exponential, spherical, Gaussian-Model, etc.?
Rob's user avatar
  • 173
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63 views

ArcMap tool for for mapping and measuring methane, considering variable parameters

I have data on 70 methane-emitting plants. For each plant I have the average data of temperature and precipitation between the years 2000-2014. In addition, each plant also has relative humidity, wind ...
Amos Tzarfate's user avatar
2 votes
3 answers
488 views

Understanding GTFS static data relationships?

I'm trying to build a data store for the GFTS static data, but can't get my head around the relationships between Route, Stop, Stop_Times and Trips. e.g. Route 2E runs between airport and city centre. ...
ErickTreetops's user avatar
0 votes
0 answers
754 views

Loading collada into 3D view of QGIS using Qgis2ThreeJs Plugin?

I have been looking at documentation and other posts but cannot find a way to load a 3D model into QGIS. I Installed the qgis2ThreeJs Plugin. I have tried to load a collada file in a temporary ...
paulg568's user avatar
2 votes
0 answers
59 views

Is there an existing solution for pattern recognition?

I've been looking at modeling potential avalanche hazard based on terrain characteristics. I have a vector layer showing historical avalanche paths and have raster layers for elevation, aspect, slope,...
RHalverson's user avatar
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0 answers
61 views

ArcGIS Modelbuilder model clogs up memory?

I have a model in which a zonal histogram is computed of each line in a feature class, showing the amount of cells each line intersects in a raster file. After this, this column is joined to a table ...
Maarten 's user avatar
1 vote
1 answer
439 views

Run CAR model (CARBayes package) with zip (a zero-inflated Poisson) family in R

I am trying to run the function "S.CARBym" using a zero-inflated Poisson (zip) family because my data y (cases of a disease) has too many zeros. I couldn't run it because the function asks to specify ...
Patricia Matsumoto's user avatar
4 votes
1 answer
121 views

Seeking algorithms for DEM generation? [closed]

What are the different algorithms employed for the generation of a Digital elevation model from images captured using an unmanned aerial vehicle ?
M Azharuddin's user avatar
0 votes
1 answer
291 views

How to Create SCS (now NRCS) Curve Number Grid using GIS with European map (ESDAC dataset)?

After finishing the watershed delineation, and after creating the HMS schematic in Arcmap, i was trying to include the land use map and soil map in the process, by using the CNgrid preparation by ...
Anida's user avatar
  • 25
2 votes
0 answers
239 views

Model builder generating empty output

In the model below, I get an empty output if I run it from start to finish. It works though if I first individually run the project and create fishnet tools, then run the entire model. Something is ...
S. Price's user avatar
  • 311
1 vote
1 answer
147 views

Disaggregating NetCDF in ArcMap?

I have many netcdf files in one folder. I want to extract variables from each netcdf file and save them as another .nc file. The process is like this: Make NetCDF Raster layer (one .nc) Define name, ...
user2543's user avatar
  • 1,188
2 votes
1 answer
99 views

Problem with number entry QGIS modeler

i created some number entry in QGIS modeler I created them specifically for them to be decimal numbers and not integer. But when i try my model, when i put a decimal number like 0.255 the value ...
Marc Robin's user avatar
8 votes
1 answer
1k views

Using QGIS 2 processing model in QGIS 3

Is it somehow possible to convert a QGIS 2.x processing model (*.model) to a *.model3 so I can run them in QGIS 3.0 without having to redo mine from scratch?
maxwhere's user avatar
  • 1,158
9 votes
1 answer
2k views

Accessing "Save Vector Layer As" algorithm in QGIS Processing Model?

I'm building a Processing Model in QGIS that ultimately exports a points shapefile (vector layer) as a CSV in a different coordinate system than the shapefile. I ordinarily accomplish this in the "...
Mike E's user avatar
  • 121
1 vote
1 answer
1k views

Creating a 3D model of a pond using GPS coordinates and associated depth measurements

There is a pond which I am trying to create a 3D model of to view the depth. We have measured the depth every few meters along straight line transects all across the pond, and have GPS coordinates for ...
Matt's user avatar
  • 21
2 votes
0 answers
241 views

Running Leroux model in WinBUGs

This may be a long shot, but I have been given some WinBUGs code to run a model with a Leroux prior. I'm interested in 'fixing' the precisions for Leroux prior and the intercept term in this model. ...
lecreprays's user avatar
5 votes
1 answer
235 views

Ignoring multi-collinearity in spatial stepwise regression modeling?

We have used multi-linear regression (stepwise) approach to perform spatial modeling with parameters derived from Remote Sensing data. The outcome of the statistically significant components produce ...
Rex's user avatar
  • 1,198
0 votes
2 answers
4k views

How to create 2D or 3D cross sections from geological borehole data in QGIS

Is it possible to load borehole csv data that contains x, y, z coordinates into QGIS and create cross sections of the strata? It is data along a rail line so a DEM is not suitable. Just a 2D cross ...
LeeGeo's user avatar
  • 21
3 votes
1 answer
4k views

Using AddJoin in ArcPy?

I'm trying to join 8000+ daily rain tables to one climatic stations shape. The goal is to get 8000+ daily rain point features. I used to work with the next arcgis model, but now i'm trying to put it ...
Santiago Restrepo's user avatar
4 votes
1 answer
74 views

Modifying number of features in Merge tool each simulation run of ModelBuilder?

I am relatively new to ModelBuilder and null in python. I want to include Merge tool in my model. However: at run 1, I want to Merge shapefiles s1 and s2 at run 2, I want to Merge shapefiles s1, s2 ...
maycca's user avatar
  • 3,376
5 votes
1 answer
3k views

Importing COLLADA Models into QGIS

QGIS 2.18.5 I'm using Qgis2threejs to put this COLLADA model ontop of a point (open in IE, not chrome). You see how the web-preview animates perfectly and the blades are centred on the hub. When ...
James B's user avatar
  • 2,139