![]() ![]() ![]() ![]() When you’re done, look down at your paper to see how you captured (or didn’t capture) the likeness of your subject.Ĭheck out our recommendations for more drawing games and drawing challenges that will get your creative juices flowing. ![]() Unlike continuous contour, you can pick up your pen, a fact that only adds to the charm of this exercise by making things even more askew. As your eye slowly moves around the object, keep your drawing utensil moving. Begin with your pen or pencil-we recommend a pen so it won’t smudge-on the page and then start at the bottom of the shape. If continuous contour drawing sounded challenging, creating a blind contour drawing will be even more daunting-but this fun activity will make you smile at the results. The “blind” in blind contour comes from the fact that you will never look down at your paper while drawing. Retaining wall heights for proposed routes AB and EF would be moderate compared to CD.Artwork & photo: Sara Barnes / My Modern Met This indicates steep slopes and costly and high retaining walls. Contours for the most part are tightly packed along CD. A large retaining wall is needed in this section. Contours 120 and 130 are locate just north of the road CD. The northwestern end of route CD goes through contour 110. The drainage infrastructure build up costs would be less for CD. Drainage to route EF would be higher than route AB, therefore drainage costs for the route EF would be higher than AB. Since on site cut material could be used, the cost could be cheaper.Īs per contours given, the hills to the north would drain to the proposed routes AB and EF. It can be argued that the cut from the northwestern end can be utilized for the fill in the southeast end of the road. EF route needs more fill than AB route.ĬD-The CD route has plenty of cut (the northwestern end) while the southeast requires fill. The proposed route requires a large amount of fill that needs to be brought in from outside.ĮF-Proposed road EF goes mostly through 60 and 70. When the proposed road passes through 80 and 70 contours, fill is needed to bring it to 90 ft. Perimeter-Area RelationshipĪB-The proposed road elevation is at 90 ft, AB passes mostly through contours 80 and 70. The average value of the map is then taken to be the fractal dimension of the surface. This method improves the accuracy of computing the fractal dimension of a surface by computing the fractal dimension of the vertical slices in the x- and y-directions plus 1, and generating a new map of the fractal dimensions created where each point is defined by the average fractal dimensions of the two profiles intersecting at that position. Another choice can be made with regard to the 1D algorithm used to compute the fractal dimensions. To add flexibility, this technique can be implemented with the possibility of computing either or both directions (rows and/or columns) and to consider only a limited number of slices. Turn your ideas into artwork wherever inspiration strikes. This approach considers the fractal dimension of the surface to be the normal average of all the vertical slices in the x- and y-directions plus 1. Create free-form vector designs on your mobile device with Illustrator Draw. Given each successive line represents a standard increment of elevation e. The elevation values are labelled from which you can interpolate the elevation values of each polyline manually. The results are generally close to those computed using the box counting method for fractal dimensions between 2.1 and 2.4. You have a drawing with 2D polylines that represent set of contour lines without any assigned elevation (Z-coordinate) - just a flat plan view. ![]()
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