CAD Forum - tips, tricks, discussion and utilities for AutoCAD, Inventor, Revit and other Autodesk products [www.cadforum.cz]
CZ | EN | DE
Login or
registration
  Visitors: 19483

CAD tip CAD tip # 9020:

   
Question CAD 
 %  platform  category 
Q - question

Three methods and three different results of measuring distance in a map.

A - answer You can use multiple methods to measure distance of two points in a drawing in AutoCAD Map 3D or Civil 3D. These methods may (properly) give different results - so you need to choose the right method suitable for the given situation.

Let us assume a DWG drawing of a map (here a thematic road map near Prague) with an assigned coordinate system, measured points with unequal elevations (Z) and an active osnap mode.

Map distance

The most simple command - DIST (or MEASUREGEOM) - lists the spatial (3D) distance of both points - here: 2107.2164 m.

The mapping command for measuring distances - MAPDIST - respects the assigned coordinate system and measures the distance on the surface of the current geoid (Earth curvature) - here: 2101.8605 m.

The add-on command csct_hordist ("Distance in 2D") from Civil Tools lists the plain 2D distance of the given points, i.e. their distance in the plan view, in XY projection - this distance is the shortest one from the three, 2101.65 m.

MapCivil
100% *  CAD 
10.1.2013    14852×  
Prices - CAD eShop:
applies to: AutoCAD Map 3D · Civil 3D ·

See also:
Tip 14017:Voronoi diagrams in AutoCAD.
Tip 13887:ClosestPt - the nearest point on another curve
Tip 13737:Formatting leading zeros in AutoCAD fields (and automatic field update).
Tip 13221:Attractor - snap multiple objects to existing points/vertices.
Tip 13064:How do I measure or enter distances along a curve in Fusion 360?


Back   All CAD Tips



Have we helped you? If you want to support the CAD Forum web service, consider buying one of our CAD applications, or our custom software development offerings, or donating via PayPal (see above). You may also add a link to your web - like this "fan" link: CAD Forum - tips, utilities, blocks for Autodesk products
CAD:    OS:    Categ: 
Text:  FAQ glossary   



Featuring:
Add .CIT raster format support to AutoCAD and Map and Civil 3D
CITin More info


Please use these tips at your own risk.
Arkance Systems is not responsible for possible problems that may occur as a result of using any of these tips.
TOPlist