CONTOUR LABEL IN ACAD 2016 HOW TO
How to label a contour line to show its elevation using civil 3d. The index contours are a darker or wider brown line in comparison to the regular contour lines. Point out the flattest and steepest areas on the crater lake map. Common issues addressed by this update: Contour label gaps were scaled incorrectly when. Make sure students understand that contour maps though 2 dimensional use contour lines to show elevation above sea level. Save time and increase your productivity with AutoCAD 2016. Because its impractical to mark the elevation of every contour line on the map the index contour lines are the only ones labeled.Īnd how to draw contour lines. Topographic maps identify terrain and elevation with the use of contour lines. To avoid this problem line features that represent contours can be treated as special types of line features. A map with contour lines on it is called a topographic map. You dont really know unless there is a label on the contour line. Modify the properties of contour label lines to change the label style for major, minor, and user-defined contour labels. Add Single, Multiple, or Multiple at Interval contour labels. However if you begin to cross over contour lines you are either gaining or losing.Ī contour is a line that connects points of equal elevation. You can create contour labels by specifying line segments that cross contour lines of a surface. clabel (C) labels contours with '+' symbols and upright text. t clabel (C,h,'manual') returns the text objects created. Press the Return key while the cursor is within the figure window to terminate labeling. Essentially topographic maps represent the three dimensional landscape of earth within the two dimensional space of a map. Click the mouse or press the space bar to label the contour closest to the center of the crosshair. Select the contour to label.ĭisplay the images of topographic or contour maps. We call that the contour interval abbreviated ci then all we do is label every fifth contour starting with the zero contour. Contour graphs are frequently used in Cartography which is more associated with geocoding of the regions. Topographic maps use a combination of colors shading and contour lines to represent changes in elevation and terrain shape.Ĭontour lines are often represented by many individual line features in a gis which can result in many more labels being placed than necessary. The values of Z in the graph are called contours. An 80 foot interval simply means that each contour line is 80 vertical feet away from. Show students map images and introduce the activity.
Every fifth contour line is a thicker index lineat some point along that line its exact elevation is listed. To add single contour labels click annotate tab labels tables panel add labels menu surface contour single. In the example below weve added labels and it should be clear that its a depression. But you can see it gets to be a bit messy what with all those numbers. Instead of labeling every line we can let everyone know the vertical distance between the contour lines. What do contour lines on a topographic map show. Labeling using the contour placement style. So if you walked along any contour line on a topographic map you would remain at the same elevation the entire time. How to label contour lines on a topographic map.
Weathering Erosion And Topography To make topographic maps easier to read every fifth contour line is an index contour. Select the contours to label by specifying the start and end points of the contour label line.
dwg file.The change in elevation from one contour line to the next is always the same within the same mapmany maps have either a 40 or 80 foot contour interval. Use the Export to CAD tool to export both the point and 3D line shapefiles to a.This functionality can be accomplished using Add Field and making simple field calculations. To learn more about how this tool works click here. This is a deprecated tool at version 10 and later. Click the box next to contour and select 'TxtValue'. This is found in ArcToolbox > Conversion Tools > To CAD > Set CAD Alias. Use the Set CAD Alias tool to assign TxtValue to the field that contains the contour values.Convert the 3D layer to points using the ArcToolbox > Data Management Tools > Features > Feature to Point tool.Use the 'contour' field as the source of heights. Open the 3D Analyst drop-down menu > Convert > Features to 3D. Instructions provided describe how to convert contour lines to CAD format, while preserving elevation values. How To: Convert contour lines to CAD format Summary
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