Latest Contributions by SheaMeyer

I have a model that has preconditions and if some of those preconditions aren't chosen, it is not a bad thing. But I get a yellow exclamation warning in the results window when a precondition boolean is false. Is there any way to make that warning not appear for a false precondition? Thanks anyone for help! ... View more

Thank you for any insight on this issue. I have a semi-complicated model of python script tools and geoprocessing functions where I am trying to combine several raster datasets into one dataset. Seems easy enough? The issue is that I need to combine rasters from a workspace, not as indivual raster datasets. I potentially have 64 output raster datasets, of which any combination of 2 or all 64 may need to be combined. This makes it impossible to hard line the raster datasets into some type of mosaic tool or spatial analyst math tool. The model cannot rely on any specific file to be there. Currently, a boolean precondition is set to decide which of the rasters will be created, where they are then added to the model only Collect Values tool. This tool is exactly what I need because if the raster is created, it is in a workspace and if not, nothing is dependent on it. The only mosaic or combine type tool that I have had success with is creating a mosaic dataset and then adding the collection of rasters to the mosaic dataset. Unfortunately, I am not having success with the attribute table of the MD showing the values of each raster dataset specifically. Preferably, I would like all raster datasets to be combined into one. I have exhausted what I believe are all of the tools to do this. Mosaic to New Raster should work but with the way my model is structured, I get errors on the number of bands between input and output rasters. This is my million dollar question that I have not figured out, Does the Raster Calculator have a mechanism to merge or combine all rasters within a workspace? Such as, instead of Merge (Raster 1, Raster 2, Raster 3, etc) can it look to the Collect Value tool in the model with an expression similar to Merge (CollectedValues)? I know this was a long post, but any insight is appreciated! INCLUDING ALTERNATIVES. I have searched and tried but have just not come up with an answer yet. THANK YOU! ... View more

All help here is very much appreciated. I am wondering if a model or python script can skip or bypass certain specified geoprocessing functions if the models parameters are empty. I have a model that calculates a numerical output for a single polygon where the user must input 3 parameters. There has been a desire for a single model to combine that final calculation of many polygons. My first thought was simple, I would just copy and paste the processes within the model for each possible polygon and set the parameters so the user would input the 3 for each possible polygon. The issue is that although the user wants to have an option to calculate this value for every polygon (and combine them after the processing), there will be cases in which some of the polygons do not need analysis, and unfortunately leaving a default "0" will crash the model immediately. So therefore, I was wondering if I continued on my initial path, is it possible that by leaving a parameter empty, can it bypass its functions all together? Thank you very much for your time and assistance. ... View more