#ARCMAP MODEL BUILDER HOW TO#
#ARCMAP MODEL BUILDER PLUS#

A simple model can solve a lot of your daily problems. Do you know you can use ModelBuilder to automate most of your GIS tasks? You necessarily donвЂ™t need to write codes every time.

#ARCMAP MODEL BUILDER HOW TO#

And in the quest of seeking for a solution, you might have sought help from friends or fellow GISers on how to automate some GIS processes and with no iota of doubt, IвЂ™m pretty sure most of the responses would probably be to learn PythonВ and thatвЂ™s fine.

In part two of this series, Emmanuel provides a tutorial on how to use ModelBuilder.Д®ver wondered how to automate those boring and recurring GIS tasks? Yes, like the kind that involves clipping/masking data, then filling DEMs and then calculating flow accumulation then flow direction thenвЂ¦В Honestly speaking, those tasks can be daunting. This overview discusses why and when to use ModelBuilder. Posted by Fiona Buckingham, GIS Trainer, Exprodat.In this overview, Emmanuel Jolaiya, a GIS analyst and data scientist,В introduces readers to ModelBuilder in ArcGIS which can be used to build models for analyzing and manipulating GIS Data. Save your model in a toolbox if case you wish to use it again. Navigate to your project geodatabase and check that it now contains all of the data you specified in the correct CRS. Click the Validate Entire Model button and then click the Run button and wait for the model to run through the processes.

You donвЂ™t need to specify the Input Dataset or Feature Class as this is fed in automatically from the iterator.

You must also specify the output coordinate reference system and choose an appropriate Geographic transformation вЂ“ remember you only need to set a transformation when source and target coordinate reference systems reference different datums.

shp extension included вЂ“ Parse Path is a Model Only Tool, accessed from the Insert menu.

If you choose to output a shapefile rather than a feature class and you wish to add a prefix or a suffix to the output name then you need to use the Parse Path tool to use the original shapefile name without the.

%Name%_ED50_UTM301N to ensure your output files are given a different name. You can optionally type in a prefix or suffix i.e.

You must specify the Output Dataset or Feature Class so navigate to your geodatabase where you want your outputs to be saved and type in the replacement string %Name% for the Feature Class output name вЂ“ this will ensure that you wonвЂ™t end up with one output and that all of your output datasets will be given the same name as the original input source shapefiles.

If you tick Recursive the iterator will also iterate through any sub folders in the main workspace.ДЄdd or drag and drop the Project tool into the model from ArcToolbox and use the Connect button to create a connection between the green output oval from the iterator and the Project geoprocessing tool.Дouble click on the Project tool and fill in the parameters: You also have the option to type in a wildcard or choose a specific feature type (point/line/polygon) to filter the datasets that will be input into the model. Key point вЂ“ you can only use one iterator per model Step 2Дouble click the Iterate Feature Classes tool and browse to the Workspace or Feature Dataset where your source data is stored. You can refer to this quick tour of using iterators from the ArcGIS Desktop help for a list of the different iterators and how they work. If you were reclassifying raster datasets for example you would choose the Raster iterator. In this example we have chosen Iterate Feature Classes as the source datasets are shapefiles. In ArcCatalog open up ModelBuilder and select the iterator you require from the Insert menu. You have received shapefiles from a data vendor in a world geographic projection system (WGS84) but you need all of your data to be in a local projected coordinate reference system (ED50 UTM31N) and saved as feature classes in your project geodatabase. LetвЂ™s look at a common E&P data management example: Iteration means вЂloopingвЂ™ so by using one of these you can run an entire model or individual geoprocessing tool repeatedly on multiple datasets at the click of a button! For example if you need run through a hydrological flow modelling workflow for different study areas then using a ModelBuilder Iterator would be ideal for performing the task in a quick and efficient way. If you wish to speed up a workflow by automatically repeating a process on many different datasets you can use one of the iterator functions in ModelBuilder.

#ARCMAP MODEL BUILDER PLUS#

There is however a 3 rd way you could consider that is far quicker than using the вЂbatchвЂ™ option, plus you donвЂ™t need to know any Python! In a previous blog it was discussed how you can use ArcPy to perform batch geoprocessing instead of using the вЂbatchвЂ™ option for a tool.

Arcmap model builder