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How To Generate Contours from a Terrain Model

Blue Marble Geographics

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How To Generate Contours from a Terrain Model

48 170 просмотров · 7 л. назад
Blue Marble Geographics
16,3 тыс. подписчиков
48 170 просмотров · 7 л. назад
In this short video tutorial, we explore Global Mapper's contour creation capability and we discuss the various options and settings that can applied during the process. Download a trial of Global Mapper: https://www.bluemarblegeo.com/global-... Timestamps: 00:00 - Intro 00:12 - Tutorial overview 00:39 - Prepare data for contour generation 01:16 - How to create contours (Contour generation settings) 02:23 - Manage contour intervals & styling 03:18 - Define the elevation range (Create contours within a specified range) 04:31 - Configure resolution 05:25 - Tip: Generate point features for min. and max. elevation values 06:19 - Tip: Configure contour distance threshold (discard contours smaller than specified value) 07:16 - Generate contours 07:30 - View contour vector features layer 07:49 - About contour smoothing 08:20 - Tip: Smooth contours with the Digitizer tool 09:38 - Removing anomalies from contours 11:36 - Min. and max. elevation value (point feature) 12:22 - Labeling the contours (and disabling them) 13:16 - Index contours 14:16 - How (and why) to define a map zoom level range 19:13 - How to generate a line or polygon at a specified height 20:53 - Example: This polygon represents areas above sea level 21:47 - Wrap-up: Creating contours with GIS software 22:19 - Conclusion