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Thanks for the reply. I've compiled my question and hopefully it's clear now.
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03-13-2017
11:57 AM
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0
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1170
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Hi all, I want to create a new raster file and need some guidance. The first screenshot displays the current raster file I have. And I want to enlarge its spatial extent to the rectangular boundary and assign 0 to the newly-added pixels. How can I make it using ArcMap? Any ideas will be highly appreciated! Thanks!
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03-13-2017
08:33 AM
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0
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7
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2164
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There is value in every contour line which is not displayed in the screenshot. Thanks for the reminder.
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02-22-2017
01:44 PM
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2
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2135
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Thank you for the suggestion. I will do it manually.
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02-22-2017
01:43 PM
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0
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0
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2135
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Hi all, I'm trying to convert a contour map (PDF file) to a DEM layer in ArcMap. The contour lines are at 1-meter interval and digitalizing them all manually is too time-consuming for my project due to time limitation. Can anyone offer some suggestions for me to do it in a more efficient way? Thank you, L.
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02-20-2017
08:53 AM
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0
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7
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5200
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That's smart! I'll try. I just manually edited the shapefile and ran Eliminate Polygon Part tool. It worked. But your suggestion is so creative.
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02-20-2017
08:46 AM
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0
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0
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1053
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I finally manually edited the shapefile and also ran Eliminate Polygon Part tool. Thank you for the tagging suggestion.
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02-20-2017
08:44 AM
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0
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0
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1053
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POST
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It's a large polygon with holes inside. Sorry for lack of information.
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02-07-2017
01:38 PM
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0
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4
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1053
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Thanks for the reply. Actually, the above image is what I got from running Dissolve.
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02-07-2017
01:23 PM
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6
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I would like to delineate the edge of my extraction below, not by hand, just automatically. I want to eliminate the inside polygons and keep the outermost edge only (highlighted by blue, not accurately). Could anyone give me some hints on this part? Thank you in advance!
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02-07-2017
01:10 PM
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2114
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I have a NDVI image from MODIS product. Detailed information of this raster file is shown in the picture below. I wanted to convert NoData (-3.4028234663e+038) value into 0 and keep other values unchanged. Then I used Con and IsNull statements on raster calculator. But it didn't work, the NoData value of output image is still the same with before it was. Here is the calculation: Con(IsNull("NDVI.tif"), 0, "NDVI.tif"). I used other ways to change NoData to 0 ie exporting the original raster file, using Set Null tool, changing data type. None of them worked. Is there any other way to replace NoData values with 0? Thank you so much for all comments in advance.
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04-27-2016
11:35 AM
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0
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5
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4486
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