AutoCad 2D :: Create B-spline Which Has Two Endpoints?
Feb 20, 2013I know there is a Spline command in the AutoCAD.
Can I create a B-spline which has two endpoints and two control points in AutoCAD similar as the one in the Solidworks?
I know there is a Spline command in the AutoCAD.
Can I create a B-spline which has two endpoints and two control points in AutoCAD similar as the one in the Solidworks?
I have a group of Points coming from a step.file. So I don't have their coordinates, excel list or anything else. Just the step file. Around 100 points. There is a line between each 2 consecutive points.
Is there any way to select all the points and create a complete spline? Or even to select all the points and create tangent arcs between all of them?
When I create a curve using spline on the screen I have noticed that often the curve between the points of the spline will become as straight lines. When I click on a point the curve appears again as normal and as I wanted. Any way to stop it from happening? Is this simply a characteristic of AutoCAD or something I am doing wrong? Does the curve appear as desired when plotted? The curves I am referring to are sections of a ships hull.
View 2 Replies View RelatedI'm trying to create an external involute spline (ANSI B92.2M) Fillet Root Side Fit 26.9mm x 1 mm x 26 teeth x 38 mm long using the spline generator with Inventor 2012. I created a test shaft"M-182-AMA.ipt" that is Ø26.9 mm x 38 mm long with 1 mm radius on each end of shaft.
I use the following steps:
1. After creating component "M-182-AMA.ipt" I select Design tab>>Power Transmission>>Involute Spline.
2. A window appears that has the caption "Involute Splines Connection Generator".In the Dimensions section I choose "Splines Type: ANSI B92.2M - 37.5 deg, Fillet Root, Side Fit, 26 x 1.00 x 38 x 5H/5h" and change the Length to 38 mm.
3. In the Shaft Groove section I use Create new, and I push the Reference 1 button that turns blue, I then select the od feature from the model and I get an error(see attached pic "error1.jpg).
I changed the 26.9mm od to be 27mm and it still gave me the error.
Work Station : Dell Precision R5400
OS: Windows 7 Business 64 Version 6.1.7601 Service Pack 1 Build 7601
Processor Intel(R) Xeon(R) CPU E5405 @ 2.00GHz, 1995 Mhz, 4 Core(s), 4 Logical Processor(s)
BIOS Version/Date Dell Inc. A10, 4/30/2012
Graphics Display Card: ATI FirePro V4800 (FireGL V) 1.00 GB Adapter RAM
Computer Memory: 8 GB ECC RAM
As you can see, the nature of my model forbids me from making a 3D solid using LOFT.
The top surface is consisted of 3D polyline and arc, which if "joined" will be become a spline.
The bottom surface can easily be joined into polyline.
If I loft the top and bottom, it'll only give me a LOFTED Surface, which is not I want (wanted a 3D solid).
Basically I have 3dpolylines and some Splines. I would like to create a road file that uses the geometry of these objects to create a single line/crest of road file.
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View 3 Replies View Relatedwhen I comand to draw the polyline like: 0,0 -> 10,0 -> 10,15 -> c
I can get the property of closed is True
but if I type : 0,0 -> 10,0 -> 10,15 ->0,0
I get the of closed is False becase 1st point and last point are overlaped.
so how to delete one of endpoints with VBA?
If there's a way to make endpoints visible on selected lines / polylines while drawing new lines/polylines or running other routines.
View 9 Replies View RelatedI've been working with Civil 3D for a while and I've gotten the Profile View and Data Bands down.Whenever we create an alignment with only two vertices (at each endpoint) and make the Northings, Eastings, and Elevations show in the data bands, the start and end show no data. (As below) Now I'm sure the data band is set up correctly because if I add a vertex somewhere along the alignment, all the missing data shows up.
View 3 Replies View RelatedI am trying to LOFT multiple ellipse shapes along a spline path to create a door handle. But as soon as I choose 1 section, MAX creates the shape. I cannot figure out how to create the shape with multiple cross sections. I have attached a screen shot and a pic of the door handle I want to create.
View 1 Replies View RelatedI have a .DWF underlay that I am tracing over an aerial. I need to create hatches for several areas, and tried to PEDIT the lines and arcs into a polyline. Several segments, however, were not "connected" to the adjacent segments even though I'd meticulously snapped to endpoints to draw the lines.
Is there a command or LISP routine to check for connectivity before I attempt PEDIT so I can fix the gaps first?
The green line is parallel with the blue line. I want to move the green line upwards until its endpoints intersect with the two red lines.
View 9 Replies View RelatedIs there a way to join two lines through anchor points and not endpoints? Simple example would be to create a 'T' object by joining two lines.
View 2 Replies View Related kept getting the following error when I try to join two end points.
To join, you must select two open endpoints. If they are not on the same path, they cannot be on text paths nor inside graphs, and if both of them are grouped, they must be in the same group.
Here's what I have. Both paths are in the same group. I zoom to max and both ends are on top of each other. So, why am I kept getting this error message when trying to join them? I tried to Average and there is no error but yet the path is not closed.
I have been using the line tool rather frequently as of late and have found it to be quite useful. More to the point, midway through lining over something my lines stopped showing endpoints to snap to when I wished to place another, resulting in some rather unpleasantly rough shapes. My question is: what did I press / change to do this, and how can I go about un-doing it?
View 4 Replies View RelatedCan I create A B-Spline curve and a NURBS curve in the Adobe Illustrator?
If yes, how to do it?
Also, how to create a breakpoint, that will add a new control point, on a curve, in Adobe Illustrator?
I made a silhouette of buildings and I"m wanting to connect the bottom open endpoints into one straight line. The reason I'm doing this is because I want to add a fill to the silhouette as a whole instead of doing them one by one.
I tried joining paths but it can only be two open endpoints at a time. I have many open endpoints.
The pen tool only joins two open endpoints. If I try to continue to try to add another endpoint to the same line, the pen tool becomes a "minus anchor point" tool and messes up the shape of the buildings.
Of course, I thought of just making each building separate and grouping them together. However, if I do that, a issue occurs because I have certain buildings that are "in front" of each other (not in the sense of layers, but the image as a whole). I purposely made the sihlouette look like some buildlings are in front of each other and some are behind each other.
I was going for something like this
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So I built this
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The endpoints indicated here will not connect - the connect selected endpoints tool is greyed out
I have a contractor that created several families for us, and they left all the ref. planes full length, and I what them nearer to the objects. When I open the family all I see is ref. planes, I need to see them, I just want the closer to the parts not stick extremely far away. I can pick them one at a time, but sure would be nice to grab them at once.
View 4 Replies View RelatedI've created four lines and want to spline the end points. Heres my
Public Sub CommandButton4_Click()
Dim pt1 As Variant
Dim pt2 As Variant
Dim pt3 As Variant
Dim pt4 As Variant
Dim pt5 As Variant
[code]....
I get a runtime error - this should be straight forward..
I can not get the SPLINE shown *attachment* here to show up in the PDF form of AC 2012 Lt.
No issues with the DWG version. I changed the layer and the color. The rest of the sketch is perfect, just NO spline ( Codend Tie Line).
how to Explode Spline?
View 9 Replies View RelatedHere I enclose file Cam_Profile.ipt, this is a spline curve made from an Excel matrix with 670 points in 3 decimals accuracy (VBA editor)
Extruding is not possible because of self intersecting path.
I want to trim both two free ends from the intersection and also close the intersection for extruding this profile. However ....., without displacement of any current point in the perimeter of the closed spline!
How can I draw Spline with fit points in AutoCAD 2013 .NET API using my own jig?
View 5 Replies View RelatedWhat changed between acad lt 2007 and acad lt 2012. Cannot draw a simple 2 point spline curve in 2012. how I do it? Is it a sys variable changed somewhere?
View 9 Replies View RelatedI have created a shaft and splined one end of it successfully. The shaft is the same diameter at both ends and I need to spline the other end as well but when I try, I get the following error messages, Cannot create iFeature. Not possible to create shaft groove. Splining the first end went without a hitch but Inventor absolutely refuses to spline the opposite end of the shaft. The shaft diameter is correct for the spline I have chosen (same as the major diameter)
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