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Screensize: 640 x 480 800 x 600 1024 x 768 1280 x 1024 UserName: Password: Anti-Spam Code: Format Mode: Basic  Help  Prompt  Format: Font Andale Mono Arial Arial Black Book Antiqua Century Gothic Comic Sans MS Courier New Georgia Impact Lucida Console Script MT Bold Stencil Tahoma Times New Roman Trebuchet MS Verdana   Size 1 2 3 4 5 6   Color Black Red Yellow Pink Green Orange Purple Blue Beige Brown Teal Navy Maroon LimeGreen Message: * HTML is OFF * Forum Code is ON Smilies [quote][i]Originally posted by YannickCryns[/i] [br]Dear, I am trying to construct the following graph using Origin. https://en.wikipedia.org/wiki/Loam#/media/File:SoilTexture_USDA.png I have used the following document to construct this diagram. https://www.originlab.com/fileExchange/details.aspx?fid=300 Here I noticed that you can only construct this diagram once you have the coordinates of the outer edges of each zone (clay, loam,...). Now I have a dataset with many points on a regular interval and I was wondering if it is possible for origin to make the same graph without only having the outer points. Because as you can see in the screenshot I have quite a few datapoints and I cannot filter them so that I only have the points on the outher perimeter of each zone. So far I am stuck since the program tries to connect all these points together instead of just colloring the zone. (These are the datapoints of just one zone for example the Clay zone in the first picture). [img]https://my.originlab.com/ftp/forum_and_kbase/Images/testYannick.PNG[/img] Is this possible using origin? Kind regards, Yannick [/quote]   Check here to include your profile signature. Check here to subscribe to this topic.