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Trying to build raster surfaces with values from vector point-data. Both spline and idw always returns intervals of values, but I want unique cell values. Have tried with both short integer and floating point values. Point values are integers from -273 to 200. Any suggestions are most welcome.
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10-13-2013
06:22 PM
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Hi again, forum. Well, the model has not been functioning the way I want it to: Problem is I cant find out how to set the preconditions right. No matter were I put them the sub-model runs all its iterations once, then the main model runs one step, then the sub-model runs all its iterations again and so forth. I have attached one image which I would think was the most logic use of preconditions: when the sub-model has run one step (i.e. its output file changes), tha main model will run one step. However, this is not working as described above. How can I make sure that both the sub-model and the main model only run one step each, then does the calculation? Thank you in advance. [ATTACH=CONFIG]19122[/ATTACH]
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11-07-2012
11:21 AM
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I think it is a graphic bug, because when I move the tools around a bit in the modelbuilder window, the dotted precondition lines appear? Anyway, I found out how to use preconditions in the right way as has been suggested in this thread, so thanks again for your inputs.
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09-14-2012
02:54 AM
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Hello again. I have tried to use preconditions but it doesn't work the way I need it to: Heres's my model: [ATTACH=CONFIG]17455[/ATTACH] [ATTACH=CONFIG]17456[/ATTACH] I have set "152_weight" and "152_weightmask" as preconditions, by right clicking "Zonal Statistics as Table" -> "Properties" and mark them as preconditions. I want to do some statistics on file "152_weight" and "152_weightmask", then 153_weight and 153_weightmask" and so forth. However, the model iterate one step through "Iterate Rasters", then iterates through all the files in "iterate_shapefiles" and then calculates Zonal Statistics that are incorrect. What have I missed? Thanks.
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09-04-2012
04:31 AM
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Hi. Thank you for your ideas. I have tried to work with embedded models, but I'm stuck again. This is what my models look like:[ATTACH=CONFIG]17173[/ATTACH] The model to the left is main model, the other is sub. The main model iterates through some raster layers, which the sub model also does. I want to multiply the two series of rasters with each other with raster calculator. I.e. I want to multiply raster "152" from the "Contribution" folder with raster "2010_152" from the "NDGI numerisk" folder. After that, I need to multiply raster "153" with "2010_153" and so forth. But in the raster calculator, I can not use values from the nested "iterate_masks" model. Any ideas how I can proceed from here? Thanks again.
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08-23-2012
04:55 AM
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Hi. I am working on a project were I need to combine several files. It can be illustrated like this: I need to open File_1 and do a calculation within Mask_A. Then File_2 within Mask_B and so forth. Both the files and masks are stored in separate folders. Is this possible to do in ModelBuilder? I guess I have to use Python, so maybe one of you have an input to that? It is easy to do in ModelBuilder if I want to use the same mask for all Files, but not if I want to change mask for each file. Thanks in advance
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08-15-2012
11:18 PM
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Hi again. I solved the graphical viewing of the data by using Raster Calculator in ArcGIS to multiply the values, so instead of being between -1 to 1, they are between 0 and 200. However I still can't find out how to get info about pixel values in raster layers. Any ideas??
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07-22-2011
01:44 AM
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Hello. I hope someone can come up with an idea to this one: I have a raster layer (image) in my ArcGIS with pixel values between -1 and 1, which I need on my ArcPAD tablet. If I transfer the image to ArcPAD with the arcpad-tool, the data is not visible (most likely due to the low values (in the sense of digital numbers...), yet the tablet reads the data, because I can get info about coordinates, projection etc. That's problem number one. The second issue is that I need to get info about specific pixel values. If I choose the "Identify" option, I only get info about coordinates... Any help would be much appreciated. Thanks.
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07-13-2011
03:59 AM
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