Permies BLOG : Landscape Design and Analysis: Draw Contour Lines with Google Sketchup Permies BLOG : Landscape Design and Analysis: Draw Contour Lines with Google Sketchup Permies BLOG : Landscape Design and Analysis: Draw Contour Lines with Google Sk… Author Chowgene Koay Publisher permies.com Publication date 01/01/11 Practical Solutions Categories Software Design Methods Making a Base Map Analysing Sectional Elevation Copied to clipboard