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jevnydaniel 
Newbie
Joined: 24.Jun.2013
Location: China
Using: AutoCAD2013
Status: Offline
Points: 4
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 Topic: How to get elevation between two contours
Posted: 04.Jul.2013 at 09:23 |
Thanks for the Heinsite's comments,it is helpful. 
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Rapid prototyping and Tooling with best price in China(www.jevny.com)
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heinsite
Senior Member
Joined: 05.Feb.2009
Location: United States
Using: AutoCAD 2014
Status: Offline
Points: 640
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Posted: 03.Jul.2013 at 06:42 |
M2P came along as a command modifier with AutoCAD 2005. Dave.
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Dave Hein, P.E.
Hawaii District Engineer
Kona International Airport
AutoCAD Certified Professional
Autodesk Expert Elite
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John Connor
Senior Member
Joined: 01.Feb.2011
Location: United States
Using: AutoCAD 2018
Status: Offline
Points: 7175
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Posted: 02.Jul.2013 at 20:00 |
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M2P also known as MTP is a command modifier used during the execution of another command. In this case the command modifier will find a point midway between two other points specified by the user.
Re: code. Haven't you ever heard of lisp? There are lisp routines that are built into AutoCAD and those that are created by CAD users. One of the suggestions above hints that someone familiar with lisp might be able to write a custom code to help you find that elusive point between two contours but to do so you would have to provide more detail as to what you are looking for. There probably won't be a one click solution as some input might be required from the user.
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"Humans have a strength that cannot be measured. This is John Connor. If you are reading this, you are the resistance." <<AutoCAD 2015>>
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ABHAYPAGRUT
Newbie
Joined: 02.Jul.2013
Location: India
Using: Autocad 2007
Status: Offline
Points: 5
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Posted: 02.Jul.2013 at 18:37 |
thanks, You are using Code to explain my Query. Please Elaborate it.
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abhaypagrut
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ABHAYPAGRUT
Newbie
Joined: 02.Jul.2013
Location: India
Using: Autocad 2007
Status: Offline
Points: 5
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Posted: 02.Jul.2013 at 18:33 |
working in 3 D i am working in both the version of AUTOCAD at different places at home and at office. iam just Beginner to Autocad.
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abhaypagrut
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Kent Cooper
Senior Member
Joined: 12.Mar.2013
Location: United States
Using: AutoCAD2020, 2023
Status: Offline
Points: 686
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Posted: 02.Jul.2013 at 15:13 |
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Or now I'm wondering whether I misunderstood. If you want to pick a single point, which won't necessarily be halfway between two contours in the XY direction, and you want the elevation at the same proportion of the distance in the Z direction as the point is between the two contours in the XY direction, that can certainly be done, but it's more complicated. A routine would need to "reach out" somehow to find the adjacent contours, such as possibly with increasingly larger crossing windows until it finds two, and do some calculations based on the nearest points on them. Does that sound like what you're after?
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Kent Cooper
Senior Member
Joined: 12.Mar.2013
Location: United States
Using: AutoCAD2020, 2023
Status: Offline
Points: 686
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Posted: 02.Jul.2013 at 15:05 |
>>> ...i want result in autocad by single click between two polylines representing contours having elevations.
Try Midpoint-between-two-points [M2P] object snap if you have it, using Nearest object snap on each of the two contours to get the points to find the midpoint between. If your version doesn't have M2P object snap [I don't remember when that was introduced], there are many routines out there built to do the equivalent -- this is the one I made years ago:
(defun m2 (/ pt1 pt2 osm) ; Midway between 2 points snap
(setq
pt1 (getpoint "\nFirst point: ")
pt2 (getpoint pt1 "\nSecond point: ")
osm (getvar 'osmode)
); end setq
(setvar 'osmode 0)
(command (mapcar '/ (mapcar '+ pt1 pt2) '(2 2 2)))
(setvar 'osmode osm)
(princ)
); end defun
Use it by typing (m2) [including the parentheses] or put that into a toolbar button or something. You can apply Nearest or any other Osnap mode on the two contours when it's asking for points. You can use it inside something like a Point or Insert command to place something at the midpoint between, including halfway between in the Z direction.
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JSC
Newbie
Joined: 19.Mar.2013
Location: United States
Using: Civil 3D
Status: Offline
Points: 17
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Posted: 02.Jul.2013 at 14:02 |
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If your'e using Civil 3d (even the older version) and have (or can create) surfaces, the process is conceptually simple. But it can be cumbersome to carry out (as you should expect with just about any advanced Civil 3D function). Are you using Civil 3D?
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John Connor
Senior Member
Joined: 01.Feb.2011
Location: United States
Using: AutoCAD 2018
Status: Offline
Points: 7175
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Posted: 02.Jul.2013 at 12:19 |
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Are you working in 2D or 3D?
Your profile says AutoCAD 2007 but your question references 2006. Why?
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"Humans have a strength that cannot be measured. This is John Connor. If you are reading this, you are the resistance." <<AutoCAD 2015>>
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heinsite
Senior Member
Joined: 05.Feb.2009
Location: United States
Using: AutoCAD 2014
Status: Offline
Points: 640
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Posted: 02.Jul.2013 at 10:10 |
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AutoCAD isn't built to do that sort of thing. You might be able to write some kind of complex LISP routine to do it, but if you're going to work with contours, or more specifically digital terrain surfaces, you're going to need to use something like Civil 3D.
Dave.
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Dave Hein, P.E.
Hawaii District Engineer
Kona International Airport
AutoCAD Certified Professional
Autodesk Expert Elite
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