AutoCad :: Measuring Angle Between Curves / Arcs
Mar 1, 2013
I have two identically-drawn arcs, with their midpoints centered on the same x/y point. One of these arcs has been slightly rotated about that midpoint by some "R degrees".
how do I find out what this angle is? In other words, I want to find some angle "R" so that if I rotate one of the two arcs by it, they will both be perfectly in line.
Seems like there's a simple face palm solution here that I'm not seeing. Angular dimension to measure the angle obviously doesn't work since they are curves.
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Jul 22, 2013
I'm having a real problem with a part I'm trying to develop:
I'm attempting to have a single timber part that has several draft face features within it, so I can control the bevelsa on the part with iLogic at a later date. The problem I'm having is that when the "running bevel" changes direction it throws out the bevels on the ends. (I've attached the file, it's very difficult to put into words.
But basically: When the running bevel is "forward" the end bevel measures 20degrees (as it should) When I flip the running bevel to "backwards" the same end bevel now measure 19.7degrees while the input parameter still says 20.
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Oct 15, 2008
Im drawing in isometric view and want to change the default drawing angle from 30 degrees to another angle.
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Oct 5, 2011
Is there a quick way to rotate an object to match an angle without knowing what the angle is? I am using AutoCAD 2011 now. I was using 2007 and I had an add on command the would rotate an object using a base point and picking the two lines that make up the angle, and it would match the angle you wanted. I can not get that command to load in 2011.
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Jul 25, 2012
I have a property line that is N 36d19'52" E but needs to be N 12d52'18" E. The obvious and calculated rotation angle would be 23d27'34" but when I rotate the line by the calculated angle it doesn't rotate to the right angle. It's off by 0d11'10"!? When I draw a line by bearing at N12d52'18" E and inquiry the angle between the property line and the drawn line the angle difference is in fact 23d27'34".
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Feb 11, 2011
Let's say I am inserting a square block into a dwg and want to get it parallel to an existing angled line. Do I have to read the angle of the line and insert the block to that angle or is there a quicker way?
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May 26, 2013
I have used a driven contraint in a sketch.
Can that also be done in an assembly?
In one assembly I want to make one angle half of a driven angle.
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Jul 6, 2013
how to convert "real world" angles of elliptical arcs into those shown in a dxf file?
Say that I have drawn an elliptical arc with its start angle on 210 degrees and an end angle of 324 degrees. The values in a DXF file, for an elliptical arc, have something to do with the contant "PI" (3.14159). I know that a full circle is 2*Pi but how to do this with elliptical arcs!!
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Feb 23, 2013
I am preparing a batch of images for test submission, for a stock photo library.Recently a person working for one of the visual effects studios in London happened to tell me that these strict agencies use some set of layers that can separate tonality and color values to check for banding, dirtiness, noise and all those technical flaws that the human eye can't notice on a monitor.He said they perhaps have an action for it so that they can review faster.
He said that it is known as 'Craze Curves' or 'Visibility Curves' technique.He further added that all the studios use it before giving the final files to clients so that there is no issue in printing afterwards.It is sort of a quality control check and has been used by digital and advertising agencies all over the world.
But now his email seems to have changed and I can't get in touch with him to know how to use the technique.
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Nov 13, 2013
Is there a shortcut to draw a 45 or 90 degree angle from a drawn line on an angle using the pen tool? ie. Rather than just from the x and y axis.
I trace a lot of maps and site plans.
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Jul 15, 2011
I've tried to measure the area of a road layout (that includes curves) and it is giving me a completely unrealistic answer (310,000m2 instead of 41,000m2). If I de-curve the lines, the area is about right, but the lines MUST remain curved for me to get the most accurate measurment. why curves aren't being measured properly, and is there a setting I can use to make sure this doesn't happen again?
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Dec 8, 2011
I use the "M" measure command a lot, Is there any other good ways to dimension in assembly? I often need to know the distance between the edge of a part and another based on a fixed view, which if the two edges are straight and on the same plane works ok but I need to measure the height of two parts which are on different planes or the distance between arcs and curves as these tend to always work from the centers?
I need a command that will basically fix the plane to the current view to get the required dimensions, is there anything available?
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Oct 24, 2011
Is there a button anywhere to measure a distance for 3 or more points. Not using the dist, area or measure commands. Similar to dist but with extra points?
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Mar 20, 2011
Using Autocad 2000LT, Windows XP
1) One circle is inside the other circle, need to measure distance from the outside edge of one circle to the to the outside edge of the larger circle?
2) One circle inside the other circle, need to measure from the center of the larger circle to the nearest outside edge of the smaller circle?
3) Circles are near each other and need to measure from the outside edge of one circle to the outside edge of the other circle?
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Apr 25, 2013
we used AutoCad LT 98 & hasn't changed when opening the same files in LT 2014. All curved lines (arcs) that occur in a recently-opened file look like two straight lines with an angle at the mid-point, so that from a distance they still resemble an arc but not at all when zoomed in. When clicking on the control points, it goes to looking like a proper arc, but the change doesn't hold after the file is saved and reopened. Is there a program-wide setting to change, or do the properties of each arc need to be changed individually?
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Jan 7, 2014
Is there a way in AutoCAD to calculate the average width between two irregular lines, such as the average width between stream banks?
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Jan 7, 2013
If you can imagine a cylinder sliding on curve joint. Let’s say the curve is in the XY plane. In the output grapher it is possible to display the force as the cylinder slides around the curve. However if I understand it correctly the magnitude of the force will be in the direction perpendicular to the point of contact between the cylinder and the curve? In which case is it possible to actually find out the individual X and Y components of the force? That is to say the magnitude of the force in the X or Y plane of the curve?
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Oct 5, 2012
I have a plot plan, that is rotate about 31 degrees off true north. So when I draw inside the plan, I rotate the UCS to be able to follow a "plant" north.
> UCS > point 1 > point 2 (along x axis) > point 3 (along y axis)
> PLAN > enter > enter
Now, I'm trying to measure a distance between 2 points with my drawing rotated along a new UCS. However, it keeps giving me the measurements as if it were still in the WORLD UCS.....so my x and y values are weird numbers instead of the nicely rounded numbers to which I have offset from a certain point.
> DIST > point 1 > point 2
How do I get my distance to show me what the x and y distances are in the UCS that I have rotated to, instead of showing me the x and y distances based on the WORLD UCS?
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Nov 11, 2011
I am trying to measure the area of an office space within the stadium and keep getting a ridiculous figure - it keeps saying that it is something like 14 thousand square metres. Am I doing something wrong because it should be coming in somehwere near 150 sq metres?
Here is a screenshot:
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Sep 2, 2011
I have to draw this:
[URL]......
But I can't understand how to draw the lines with that measure in fractions. I have my units set in "Architecture : Inches".
For example, in the right line that is: 9'-11 7/8''
What I do is, start the line command, click anywhere on the gril (because it doesn't say where start... so I guess you could click anywhere, although I am not sure about that either). And then I put, @9
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Jul 25, 2012
1st let me preface this with the fact that I know zilch, nada, nil about solid modeling. But I think the easiest way to accomplish what I'm trying to do is thru solid modeling and export the end result as (3D) polyline
What I have is 2 intersecting arcs with varying radii and ucs values. I'm guessing these could turned into regions and then subtract 1 from the other in order to find a list of intersecting points or maybe a splined pline. Or maybe they could be joined. Either way, if I DXFOUT the solids in R12 format, they become plines
I have access to R14 thru 2012
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Nov 7, 2013
How come when you try and check a distance on an alignment, and say I try and click on one of the tick marks it will not snap to the intersection of the tick mark....it like jumps off like half a foot and will not give you an accurate measurement?
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Jun 13, 2012
I am responsible for populating a database in which one of the fields is the area of individual rooms in a building. The instructions indicated that I was to use polylines to enclose each room / area and to find the area based on these values.
Earlier this year, another student was hired to confirm the measurements on building blueprints. This student took accurate measurements of each room, however instead of correcting the drawings, he simply added override text to the dimensions. Therefore the displayed dimensions are correct but my area values using polylines are inaccurate.
The project that I'm working on includes a number of drawings and close to 1000 rooms. I downloaded a function I found online that allows me to figure out which dimensions were overridden by boxing them in a different colour and I've found that it is a significant ammount.
Is there a way to use these overridden dimensions, without altering the physical nature of the drawing, to find the area of a room?Need to use polylines to calculate area of many rooms. Dimensions have been overridden and are inaccurate. Can i use the overridden dimensions without altering the physical drawing?
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May 12, 2012
I have been provided an existing cad drawing as part of a project. I need to be able to measure the walls and interior of the drawing and I have the drawing set to mm. I would like to know what settings I need to change so that the measurements appear in mm as at the moment they arent. I have attached a picture to show the sort of measurements I am getting... is this something to do with scaling? The number on drawing is 15.700.
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Jul 1, 2013
I am looking for a way to stream-line productivity of measuring points.
Currently working on monitoring surveys and have to show the movement of beams for the shoring walls.
The crew sets the benchmarks and every week goes back ties them in. I am currently measuring the horizontal, lateral, and vertical movement manually and then taking the numbers and typing them in excel.
is there a way to select the 2 points and it automatically insert the difference in a table?
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Jul 9, 2013
Using AutoCAD Map 3D 2012 Im exporting a few subdivisions to MapInfo after doing my steps on a MAPEXPORT command to create a .TAB or .MIF / .MID which are the steps do below.
MAPEXPORT --> select format_ .TAB or .MIF ---> select my drawing manually ----> do my coordinate conversion -----> DONE..
When in MAPINFO and ready to open / import the exported .TAB it opens and places the drawings (subdivisions) in its correct coordinate I gave it, but the TEXT and ARC / CIRCLES do not come in to scale at all they are extremely large to a point where they can't be seen till I do a zoom all.
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Jan 5, 2013
Whenever I try to trim two intersection arcs who have the same bending direction and similar radius, casue it is extremely hard to click on the parts that need to be trimmed off. See attached pic for reference.
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Jun 25, 2011
I've got ObjectIds of a bunch of arcs that I need to convert to polylines for further processing.
I was thinking of using the COM interface and sending the PEDIT command and converting the arcs.
The only problem is I don't know of a way to put the objectids into a selection set, then call the pedit command and use the previous selection.
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Dec 24, 2013
Using VB.NET
How to draw connected line arc line arc line and so on, given some points formatted in a file like this
easting northing radius
0 0
10 10 200.00
12 10 150.00
30 20 60.00
50 30 50.00
50 43 60.00
1640.42 1104.30 50.00
1770.20 1100.62 100.00
1850.00 1085.18 100.00
2002.61 1141.46
the output will be like this :
line arc line arc line arc line arc line arc line arc line arc line arc line
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Nov 25, 2013
Any plug-ins out there that focus solely on this?
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Feb 8, 2011
I want to loft two rectangles using arc as a path , but i cant , 1st i cant draw the arc in 3d so i draw it in "Front" view , then i cant loft the rectangles using that arc as an path -"The selected entities are not valid" , maybe because i draw the arc in "Front"(bottom left), but i cant draw it in 3d?!! Here it is some screen shot:
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