AutoCAD .NET :: How To Create Lightweight Polyline Using Existing Lines And Arcs
Mar 29, 2013
Using VB.NET, how to create a new polyline out of existing lines and arcs? I am converting existing VBA code into VB.NET, developing in AutoCAD 2010 using VS Professional and I just stumbled into this road block.
Without using programming code, this task can be accomplished via AutoCAD command by typing the PE command, selecting the JOIN option and then selecting any lines or arcs which should be combined to form a polyline.
Using programming code, however, I am quite stumped on this task. I have been able to successfully create the lines and arcs which should form the polyline, and they are all connected as well so they would form a connected polyline; I simply do not know how to proceed from here.
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Sep 16, 2011
Is there any way at all to draw a new polyline - from the endpoint of another polyline, and have it automatically join as one polyline from the existing section??
I know this can be done via PEDIT, but its so laborious and soo many clicks, and I have alot of segmented Polylines that I need to consolidate when I draft.
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Apr 17, 2012
i.e. one that would apply best fit lines and arcs to a segmented polyline?
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Oct 16, 2001
is it possible to make a wipeout but with a polyline that has arcs?
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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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Jun 28, 2013
3 lines. 2 arcs. All coplanar, all meet end-to-end.
I set "Units/precision" to 0.00000000 and inspected them. They are all x=0 for each endpoint, therefore coplanar. I also did a point "ID" command and checked each endpoint approaching from both sides and confirmed that each pair of results was identical, so all the ends meet exactly.
I was under the impression that Join or at least PEDIT should be able to combine coplanar lines/arcs that all meet end to end into a polyline. Also, using the Express Tool's "FLATTEN" command doesn't work.
The reason I'm doing this is because I've drawn lines/arcs that trace along the midpoint of a sheet metal's material thickness, and this sheet metal has two bends in it and isn't flat anymore, so converting the lines/arcs to a single polyline will tell me how long the flat plate needs to be that will be ordered to create it.
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May 31, 2012
The arcs in the object i have drawn gets converted to lines when i mirror the object.
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Jul 9, 2012
The user is unable to add any sort of Lines, Arcs, etc to an existing file. However not all files behave this away. It seems like there must be some sort of a lock or a security item in place to prevent changes being made.
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Oct 30, 2013
I have a giant polyline containing a mix of arcs and straight segments, and I would like to convert all of the arcs into a series of small, straight lines so that I can use the polyline with a plug-in I wrote to use the polyline as a selection polygon.
Someone mentioned something about WMFOUT and WMFIN but that gave me some pretty weird, wobbly lines as a result and plus it didn't scale things the same when I used WMFIN.
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Jul 13, 2007
how to join line or polylines with ellipse arcs or circle arcs and now.. I give up! Here is my problem: What I would like to draw can be compared with a pear: a succession of circle arcs ellipse arcs and maybe polylines. Once the profile done, I was planning to use REVOLVE or (EXTRUDE + FLLET) to finish my drawing... the problem is that I can't join 2 ellipse arcs from different ellipses (which means neither with a circle arc. How would you proceed to draw a pear?
PS: I'm using autoCAD 2006 z.54.10 version
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Sep 6, 2012
I am looking for a way to use objects created from lines and arcs as text because of a machine that will not read text. The objects look like letters and numbers. I am wondering if there is a way to create a text style, library or whatever with the created "text". There can be hundreds of characters on a single drawing so importing and aligning and placing each object 1 at a time is very slow and painstaking.
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Oct 18, 2011
I've been trying to figure out how to do this. I have a file with 41 drawings, and 7650 objects. and i want all the lines, arcs and circles to be turned into polylines. Now the Mpedit command doesnt really do it for me.
Command: MPEdit
Select objects: Specify opposite corner: 4632 found, 10 groups
Select objects:
divide by zero
This is what happens when i write MPEdit, mark everything in my drawing and press enter. Now i also tried marking a line, using select similar, and fixing it that way. but i get the "divide by zero" error aswell.
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Dec 13, 2012
I've looked at adding spaces to a plan that is simply lines and arcs... no intellegent objects.
It could get somewhat messy doing Generate Spaces... if the doors and swings are frozen the bounding objects don't get found... but if the doors and swings are on... the spaces go in fairly well... but then the door swing is used as a boundardy.
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May 6, 2013
I need to crop image in autocad, path for croping is made of lines and arcs and one picture needs to be croped with circle. Is it possible to crop this way?
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Jan 9, 2014
so in the old illustrator i was able to export to a dxf with lines and arcs and autocad options and now there is no longer a prompt for such thing and after exporting it turns a circle into little straight lines instead of arcs....
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Sep 28, 2012
I'm trying to create an all new existing surface over existing ground. I have a TIN surface of the EG, and I have drawn overlay splines that describe the new surface, but how to go about creating that design surface.
It is a compound surface, open on one end and closed all around on the other, somewhat like a half of a football stadium, but with an irregular upper edge because I am needing to figure out cuts and fills to manipulate the EG into this new surface without costly major terraforming. There is about 40-50' vertical elevation between the "field" and the upper rim with a generally constant 7-10 deg. slope all around. I'm just at a loss to figure out how to approach this project, and am quite new to Civil 3D.
Civil3D 2013
MacBookPro 17 - 2.4GHz Intel QuadCore i7 (Late 2011 build)
Microsoft Windows 7 64bit
350GB Bootcamp volume
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Nov 17, 2012
I have an existing polyline of approximately 5'. When I choose PEDIT where do I go from there to make the plolyline exactly 12'8"? I'm in architectural mode. Ooops, I forgot to say this is in DraftSight, which should be similar to AutoCAD.
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Aug 28, 2013
I have a proposed surface that has been made by selection polyline with a z elevation as contours. Is it possible to have civil 3d easily change the weeding and supplementing factors to a tighter value after it has already been made?
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Jun 25, 2012
I can not make a lightweight Pdf file.
I want to make a document for display only.
What are your options for this type of work with DRAW X6.
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Feb 16, 2011
I need to join multiple lines to a new polyline..The lines are filtered by a selectionset
Dim oPline as new Polyline()
For Each oSel As SelectedObject In acSSet
Dim oEnt As Entity = TryCast(acTrans.GetObject(oSel.ObjectId, OpenMode.ForRead, True), Entity)
oPline.JoinEntity(oEnt)
End If
Next
The error occurs on the oPline.JoinEntity(oEnt)
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Mar 20, 2012
Normally i Join lines and fillets to become a polyline and no problems
But sometimes when i Join them it turns them into a Spline which i dont want.
Then i have to convert it into a polyline and it then it adds load of points/grips on the line which i dont want.
Is there a setting that stops the lines converting to a spline
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Feb 14, 2012
I seem to be having an issue with polylines and a few other things like rectangle, they will only draw in up and down movements and not draw to the left or right.
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Jul 14, 2011
So the problem I am having is when I try join lines and/or make a polyline. I am trying to model an electron lens and have all the measurement and angles correct but Autocad does not want to allow me to join the lines so that I can make a 3D model for export. When it does allow me to join all the line or make a polyline, the lines are not straight. Granted I have to zoom in to see the deviation in the line but my connecting lines are not orthogonal like they should be. Here is a picture of what I am trying to make.
The main problem area is the gray part three electrode 1.2.pdf (Don't know if you can see my attachment)
three electrode 1.2.dwg
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Sep 17, 2012
I'm using a block with thick polylines. When i copy it to another drawing the thickness does'nt show anymore, only the contours drawn in thin lines.
How do I get my wide polylines to show correctly? Is there a setting I should know about?
I'm attaching an image of the block the way it should look, and one of how it looks when I paste it in drawning no 2.
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Nov 4, 2013
How to obtain the points in a polyline from multiple lines that cross the polyline.
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Jun 18, 2012
How are normal lines joined together to make one poly line? Learning on Auto CAD 2010.
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Mar 7, 2013
Scren shot attached
I am hatching (a very quick sketch for info) but the hatch lines are going across the ploy line zone.
What happening. I cannot snap to these, but if in put a selection window acorss an of the lines, it will select the hatch.
I dont want to see these and dont want to have to hatch indivual rectangles. Never seen this before.
I cannot see anythign obvious in any of the settings.
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Apr 18, 2012
I have a problem in polyline width. when i set polyline width in one drawing shows solid line & in another drawing shows blank lines.
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Jul 30, 2013
How do I solve this problem I cannot join basic lines to make a closed polyline as they will not join together. So i tried to use the flatten command which does not work and out puts error below:-
Command Prompt Input/ouput
Command: FLATTEN
Select objects to convert to 2d...8 found
Remove hidden lines? <No>:
A vertex was added to a 2D pline (0) which had only one vertex.
A vertex was added to a 2D pline (0) which had only one vertex.
A vertex was added to a 2D pline (0) which had only one vertex.
A vertex was added to a 2D pline (0) which had only one vertex.
A vertex was added to a 2D pline (0) which had only one vertex.
A vertex was added to a 2D pline (0) which had only one vertex.
A vertex was added to a 2D pline (0) which had only one vertex.
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Sep 13, 2012
Civil 3D 2013.
Problem with command from Home tab - Draw panel - Curves drop-down - Create Curves Between Two Lines OR Create Curve on Two Lines.
If you select the Degree option, it draws a zero length curve when you type in a valid number for degree of curve. I have tried entering it in decimal format and as ##d##'. NOTHING WORKS!
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Oct 22, 2013
I really need a auto lisp that do lines/polyline on line edges creating a polygon like the example.
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