How To Generate Contours from a Terrain Model
Blue Marble Geographics
0:00 / 0:00
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