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Thank you for your suggestion. I am currently trying to assess how accurately a automated thresholding process generates glacier outlines and compare this to a manual digitisation. Hence the need for a quick and reliable way to digitise in straight lines.
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04-27-2018
10:44 AM
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Thank you, I will have a read up on how to use this tool.
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04-27-2018
10:42 AM
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Thank you for suggesting this. I have just tried this method out and it performs the task in a much quicker and more accurate way than I had managed previously.
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04-27-2018
10:41 AM
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Hi, I'm currently using Arcmap 10.3.1. and I am trying to manually outline glacier extent on Landsat imagery at 30 m resolution. I wan to draw a straight line around each pixel edge to create a polygon of glacier area. When I am drawing the line they often have angle changes in them so that they do not appear straight (see image below). Is there a way to efficiently draw perfectly straight lines? - e.g. shift and drag as in Adobe Illustrator to get a perfectly straight line Thanks in advance.
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04-26-2018
09:50 AM
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