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- About Zihan_Lin
Zihan_Lin
New Contributor III
since
08-08-2014
11-11-2020
44
Posts created
13
Kudos given
0
Solutions
2
Kudos received
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My Ideas
(0 Idea Submissions)Latest Contributions by Zihan_Lin
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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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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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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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Thank you for the suggestion. I will do it manually.
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02-22-2017
01:43 PM
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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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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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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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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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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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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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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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My kudoed posts
| Title | Kudos | Posted |
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| 1 | 06-05-2015 11:34 AM |
Activity Feed
- Got a Kudo for Re: Can't change legend in Basic Viewer. 11-11-2020 02:05 AM
- Posted Re: How to create new raster files and assign values using information from other raster layers? on Data Management Questions. 03-13-2017 12:32 PM
- Posted Re: How to create new raster files and assign values using information from other raster layers? on Data Management Questions. 03-13-2017 11:57 AM
- Posted How to create new raster files and assign values using information from other raster layers? on Data Management Questions. 03-13-2017 08:33 AM
- Tagged How to create new raster files and assign values using information from other raster layers? on Data Management Questions. 03-13-2017 08:33 AM
- Posted Re: How to digitize a contour map (PDF) to generate a DEM layer? on Data Management Questions. 03-02-2017 06:51 AM
- Posted Re: How to delineate/draw the edge of polygon automatically? on Data Management Questions. 02-22-2017 01:45 PM
- Posted Re: How to digitize a contour map (PDF) to generate a DEM layer? on Data Management Questions. 02-22-2017 01:44 PM
- Kudoed Re: How to delineate/draw the edge of polygon automatically? for JoshuaBixby. 02-22-2017 01:44 PM
- Posted Re: How to digitize a contour map (PDF) to generate a DEM layer? on Data Management Questions. 02-22-2017 01:43 PM
- Posted How to digitize a contour map (PDF) to generate a DEM layer? on Data Management Questions. 02-20-2017 08:53 AM
- Tagged How to digitize a contour map (PDF) to generate a DEM layer? on Data Management Questions. 02-20-2017 08:53 AM
- Tagged How to digitize a contour map (PDF) to generate a DEM layer? on Data Management Questions. 02-20-2017 08:53 AM
- Tagged How to digitize a contour map (PDF) to generate a DEM layer? on Data Management Questions. 02-20-2017 08:53 AM
- Posted Re: How to delineate/draw the edge of polygon automatically? on Data Management Questions. 02-20-2017 08:46 AM
- Posted Re: How to delineate/draw the edge of polygon automatically? on Data Management Questions. 02-20-2017 08:44 AM
- Posted Re: How to delineate/draw the edge of polygon automatically? on Data Management Questions. 02-20-2017 08:42 AM
- Kudoed Re: How to delineate/draw the edge of polygon automatically? for BlakeTerhune. 02-20-2017 08:42 AM
- Posted Re: How to delineate/draw the edge of polygon automatically? on Data Management Questions. 02-07-2017 01:38 PM
- Posted Re: How to delineate/draw the edge of polygon automatically? on Data Management Questions. 02-07-2017 01:23 PM
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