![]() ![]() The contour drawing technique allows you to focus all your attention on the model rather than the usually divided effort of staring alternatively at the model and paper.įor this reason, you can effectively follow and implicate forms to their most logical conclusion and learn how and where they relate to other forms. The illusion of three-dimensional form in contour drawing is often achieved by varying the lines’ weight, using relatively darker lines in the foreground and paler lines in the background. That is to say that it indicates the length and thickness, and width of the form it represents. On the other hand, a contour drawing boasts a three-dimensional quality. It is the sort of thing you create when you place your feet on a flat piece of paper and trace around your toes with a pencil, just a simple representation of the main object. ![]() To be more precise, an outline is a two-dimensional diagram. However, it is imperative to note that there is a slight difference between an outline and contour. In this example, Contour Interval is specified as 100.ĭefine the space between two contour lines using either the static (by specifying the Contour Interval field) or dynamic (by specifying the Number of Contours field) value.Contour is usually described as the outline of a body or figure. Specify either the Number Of Contours or Contour Interval field to determine the space between two contour lines.If Z Base is specified as 1,434, the 100 increment starts from this value, that is, 1,534, 1,634, 1,734, and so forth. For a study area with a minimum elevation of 1,434 meters and a contour interval of 100, maintaining the default Z Base value creates increments of 100s, starting from the next nearest hundredth, that is, 1,500, 1,600, 1,700, and so forth. The default value of Z Base is 0, which represents the mean sea level. In this example, it is 1,434 meters, as this is the lowest elevation in the study area. For Z Base, specify the base contour value.For Contour Type, ensure the default Contour lines option is selected.For Raster, specify the desired single-band raster layer.Refer to ArcGIS Pro: Contour function - Parameters for more information on parameter settings. Configure the Contour Properties pane.A contour layer with 100-meter intervals is drawn on the map.ĭEM layer of Boulder, Colorado and its surrounding area. The study area shows elevations between 1,434 and 3,200 meters above sea level. The images below show a digital elevation model (DEM) and triangulated irregular network (TIN) layer of Boulder, Colorado and its surrounding area. Tool or functionĭata of contour lines are available in the attribute table? The table below lists the tools and functions to create a contour layer. In ArcGIS Pro, existing tools and functions can be used to create contour lines, depending on the input and the desired output data. This is useful in identifying suitable locations for projects, such as estimating water storage capacity, or approximating the volume of excavation work. #Are contour lines in art 2d pro#How To: Create contour lines in ArcGIS Pro SummaryĬontour lines help visualize surface topology by creating line connecting points with an equal elevation above or below a standard level. ![]()
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