How to find the inflection point of a spline???
I create a spline from a list of points and want to know where the curve of the spline changes to be able to dimension this point, it is not necessarily a point that is entered.
Path array of a point on spline, I’m wondering why the path array of a particular point on the spline doesn’t force the points to lie on the spline itself!
Software: AutoCAD 2014, AutoCAD C3D, AutoCAD M3D, Revit
Windows 7 (Ultimate 64 bits),
Firefox 20.0,
Kaspersky 2013.
I cannot find my point settings.
View 7 Replies View RelatedI have been taking data using an EDM and names all of the points. Once I export it to autoCAD as a dxf file, im struggling to find the point data.
View 2 Replies View RelatedI want to find the tangent intersection point between 2 circles within certain conditions.
Circle 1 is r: 30 m and is fixed.
Circle 2 is r: 20 m and its position is inside circle 1.
Circle 2 can be moved in a given angle.
The question is: what distance should circle 2 move, to become tangent with circle 1.
Is there a way to find the latitude and longitude of a point in an AutoCAD drawing?
View 4 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 RelatedSpline curve command has changed. This is terrible as I used to use simple line types to show different things on my drawings that was rapid fast with custom macros etc. Now the spline curve command does not work in same way costing me hours of time wasted. I have now resorted in saving all incoming drawings to older version and completing my drawings that way. Only problem is the new drawings are growing above the capabilities of my old machine.
How can I initiate the old std 2 point spline curve in the new software so it works the same way as old version?
How can find closest point from point to a region?
Windows 7 (x64)
AutoCAD 2012 (x64)
Let's say I have a 3D polyline, which I turn into a spline. I then want to determine how closely the original polyline and spline follow each other. How I can check this programmatically? The concern is to find the maximum deviation and its location.
Howto be able to run the check on other types of objects as well: arc, polylines etc.
While tracing a tree image using splines for a school project i have run into some problems...I am creating a pattern for a plasma cutter.
When i move the points of my spline sometimes it causes the whole spline to randomly move around and twist and turn where there are no points. Also sometimes when i open the drawing some of the spline lines are out of place while the spline points have not moved.I have tried to constrain all the points but it turned into a mess.How can i stop this from happening?
how to Explode Spline?
View 9 Replies View RelatedWhen I am drawing using the "spline fit" I am unable to transfer my DXF to a laser,water-jet, CNC router etc... Is a spline any differnt than a "line? the yellow will show up on the machine, but the green isn't recognized.
View 3 Replies View RelatedI'm trying to make some 3d spline gears in autocad, I start by generating them in eMachineshop then importing into autocad, this works fine but the gear is imported as seperat lines so I can't extrude them, i also cant join the lines because after zooming in there are quite a few gaps. How I can join the lines together without manually connecting the dots? I'll include a copy of the gear, eMachineshop only outputs dxf files as far as i know.
View 3 Replies View Relatedwhy can't I snap to a knot on a spline when trying to use a dimensional constraint? I can snap any other geometric feature like a line or a dimension string to a knot. I can grab the knot (also seems to be in the same place as the "fit point", yes?) and move it around, so why, why, WHY can't I use a dimensional constraint? I really need to be able to control a spline's fit points with dimensional constraints, but I can't get at them exept to manually move them around.
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
how to match up certain points. I have imported 2 point clouds and have tried to use the 'align' tool to specify three points from the source object (cloud) and three points from the destination object (cloud). When doing this, it does not properly align them. The point cloud makes it difficult to select the exact point I would like to align, since there may not be a point at that exact location, but close to it. Does AutoCAD require the points in alignment to match up perfectly or is it capable of doing a best fit?
Also, is AutoCAD capable of creating a solid 3D piece from the point cloud? I would like to take all of my points and make a smooth object.
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).
I try to sweep along spline that made of elliptical arc and line.
Funny thing that I was able to create a solid few days ago by doing this method. Now I can't!
I tried even reload Autocad.
i have the fillowing norting/easting:
257,414.80
232,947.60
how can i enter that into autocad (2010) and find its location?
I draw 3 lines to form an open polyline. They are still in lines, not converted into a polyline.
How do I find the start or end point of the polyline with program? I am thinking to check all points which is not shared by two lines.
Is there any function available to find out if a point is present on a line or not?
View 8 Replies View RelatedIf I use this code it will give me the insertion point for a block
(setq ent (car (entsel "
Select Main Object: ")))
(setq InsPt (assoc 10 (entget Ent)))
Now if I try to use this for a surface label and try to get the insertion point
(setq ent (car (entsel "
Select Main Object: ")))
(setq oEnt (vlax-Ename->Vla-Object ent))
(vlax-dump-object oEnt)
I dont see anything that will get the insertion point.
I would like to use iLogic to find the location of the points of a line, determine if the line is approximately vertical, and apply a vertical constraint if it is vertical.
Here is the code process I envision:
1. Automatically select a straight line.
2. Find the location of its end points.
3. Compare the X-value of the end points to see if they are vertically aligned (or almost so).
4. If they are vertically aligned, apply a vertical constraint.
5. Select next line and repeat.
Is this possible with iLogic? I don't see any way of calling a line's sketch points or finding their location.
When I use the AutoCAD List command on a Civil 3d Point, one reported datum is Primary Point Group.
I want to get at that information with vlisp, but when I vlax-dump a point, there is no mention of Primary Point Group. If that's a limitation of using vlisp, let me know, and I won't chase it.
Maybe I have to go in through the point groups collection?
I have to create a hole (extrude) in a wall part in my assembly document where a stack will be installed.
To determine where, I verify if a line segment pass through the wall (XY Plane).
But I get an error with the command: IntersectWithLine
Here's my
Public Function IntersectionPoint(ByVal app As Inventor.Application,
ByVal wp As Inventor.WorkPlane) As Inventor.Point
Dim oTransGeom As Inventor.TransientGeometry = app.TransientGeometry
Dim startPoint As Inventor.Point = oTransGeom.CreatePoint(Me.StartVertex.X,
[Code] ......
How can I find a block with a specific name and get what the coordinates are? What we have is our Bill of Material is attributed blocks. I am attempting to change the first one. Well all of the lines that list the parts are seperate blocks with the same name. Now the Top Line of the Bill of Material is a different named block. If I can find the coordinates of this block I can then select the first line to do what I need to.
If needed: AutoCAD 2013 User using Visual LISP for editing LISP and DCL files Also I have AutoCAD 2011 currently still available for us, but we are using AutoCAD 2013 for 99.9% of AutoCAD use
I'm attempting to find the intersection point between a LineSegment2d Object and a DrawingCurveSegment object unsuccessfully.
View 1 Replies View RelatedUsing Lisp or VLisp, how can I find the Start & End Point of an AEC_WALL ent. ?
View 5 Replies View RelatedI have a lisp routing that the user has to use, to create a ucs, that is exactly on the front of the entity the user selects, so that whne they are drafting, labeling, dimensioningn the 3D entity, none of the drating lines are hidden when plotted.
The code is as follows:
(setq obj (vlax-ename->vla-object ent))
(vla-getboundingbox obj 'LowerCorner 'UpperCorner)
(setq LowerC (vlax-safearray->list LowerCorner))
(setq UpperC (vlax-safearray->list UpperCorner))
[code]...
Then I do a condition to see which points are greater than others, and move the ucs depending on the view to the foremost point. The program works perfectly.... however, often, they forget to use it.
I was wondering if I could incorporate it in another lisp that everyone uses, but not having the user pick the entity they want to be in front of (sometimes they pick the wrong entity). Instead, take the group of entities (anywhere between 1 to 30 per drawing (these are piping spools, so the entity count is not that great in model space)) and set a front working plane in model space. Working in paperspace is not an option, we're just too deep into our templates and processes.
I know there is a vmin and vmax, but they are for the X and Y axis, a VMax along the Z-axis would be great.
I need one lisp to get invert levels, I am having Invert levels and cordinates of two points of an arc how can I find invert level of a point middle of tht arc?
View 9 Replies View Related