AutoCAD Inventor :: Graph A Curve Using Equation Over Closed Interval

Mar 15, 2013

Is there a way to graph a curve using an equation over a closed interval in Inventor 2012?  I know I can draw a spline through points that are solutions of my equation, but this does not guarantee that the curve is the graph of my equation. 

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AutoCAD Inventor :: Create Hyperbola Curve Using Equation Curve (Autodesk 2013)

Feb 19, 2013

I want to draw hyperbola curve whose equation is  x^2/a^2  - y^2/b^2=1. May I use equation curve tool to make the above hyperbola. 

I have also made a hyperbola curve of aforesaid equation through conventional method on mathematical ground in the past.

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AutoCAD Inventor :: 3D Sketch Equation Curve

Mar 17, 2013

I'm just starting out with learning equation curves in Inventor.How can I get this curve

r(t)= ti + 4cos tj +9sin tk; where t is greater than or equal to 0

how to get this VBA as an equation curve

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AutoCAD Inventor :: Super Ellipse Equation Curve

Dec 11, 2012

I'm trying to use the equation curve to draw a super ellipse.The formula I'm trying to translate for inventor is the following.I'm guessing this should be possible using the abs() for the first section and an IF() statement for the second. The problem is Iäm not even getting the abs() to work at all. How to translate this formula?

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AutoCAD Inventor :: Why Does Equation Curve Function Not Work

May 10, 2012

Trying to do something as simple as y=x^3 (Explicit Mode). Set xmin = 10, xmax = 20 then tried y(x) = :

1in *(x^3) -- no good
(x^3)/1 in -- no good
(x/1 in)^3 -- no good

Error is that "Equation y(x) contains errors. Expected units are length".

The point here is: Why should typing in such a simple equation as y=x^3 be so difficult??? Can't even do (x*x*x)/1 in & make it work.

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AutoCAD Inventor :: Equation Curve Dependent On Parameter?

Feb 15, 2013

Can i make an Equation Curve such that it is dependent on a parameter from my Parameters list?

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AutoCAD Inventor :: Projecting 3D Equation Curve Onto A Sphere

Jun 21, 2013

What are the parameters for a parametric 3D Equation Curve to create a path for a coil similar to that in the attached image?

Or alternatively tell me how I can produce the coil in some other way!

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AutoCAD Inventor :: 2D Equation Curve For A Parabolic Spiral

Jun 22, 2013

what the 2D or 3D equation curve for a parabolic spiral, otherwise known as a Fermat's spiral would be? I have found this info but do not know how to apply it:

Fermat equation

Therefore in terms of the affine plane its equation is
The Fermat curve is non-singular and has genus

I have also found this: $r^{2}=a^{2} heta $ 

Please see image attached.

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AutoCAD Inventor :: 3D Sketch Equation Curve - Creating Coil?

Jul 26, 2013

I am trying to create a coil which from above, retains equal and thus parallel pitches whilst at the same time adheres to a semi-circular form in the cross section. You can see from the images attached that the first two revolutions are larger than the semi-circle outline.
 
These are the values I have used:
 
Cylindrical

r (t):     134.56924424045517662353735770102mm * t * 0.5
q(t):     1 deg * 360 ul * 3.0 ul * t
z(t):      10 mm * 6 ul * 0.5 ul *  t  * (1.5 * t) * t

tmin: 0 ul
tmax: 0.916 ul

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AutoCAD Inventor :: Variable Pitch Helix By Equation Curve

Jun 20, 2012

You can create a variable pitch helix by using the Equation Curve feature introduced in Inventor 2013.

Create a new 3D Sketch. Start the Equation Curve command.

Here are equations that I use to create helical curves. Many other variations exist.

Cartesian coordinates:

x(t) = radius * sin(360 * num_turns * t) 
y(t) = radius * cos(360 * num_turns * t)
z(t) = height * t

[Code]....

When you sweep a profile along a helical path, use the plane normal sweep (instead of perpendicular sweep) to orient profiles suitable for coil or spring.  In the example below, the sweep path is a constant radius, variable pitch helix.

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AutoCAD Inventor :: Equation Driven Curve - Unit Error

Nov 27, 2013

I would like to create an equation driven curve with inventor. I have no problems plotting the function in a plotter, however, inventor won't accept my equation. It gives me the error message, saying: "The equation contains unit errors". I'm using the explicit equations.That's the bare equation:

"y=sqr(2)*16.5/2/sqr(pi)*sqr(arccos(1-2*x/50)-(sin(2*arccos(1-2*x/50))/2))"

I modified it, inserting variables which I defined also in inventor, leading to this:

"sqrt(2)*height/2/sqrt(PI)*sqrt(acos(1-2*t/length)-sin(2*acos(1-2*t/length))/2))"

But both equations are not accepted by inventor due to unit errors. In this design, I'm using the metric system, millimeters, so I don't understand why and how I have to redefine this for the equation in order to get it working.

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AutoCAD Inventor :: Splice Equation / Hyperbolic Curve To Ellipse?

Nov 8, 2012

create an ellipsoid with a hyperbolic funnel on the end.

How can I join an equation curve to an ellipse to create revolved ellipsoid shape? I also have alias and fusion if these are needed.

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AutoCad :: Possible To Create Specific Curve - Enter Equation?

Aug 10, 2011

Can I create a specific curve in latest released version of AutoCAD by an equation?

If yes, what version of AutoCAD is it, and also how to enter the equation?

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Illustrator Scripting :: How To Draw A Curve That Follows An Equation

Jul 29, 2013

I am trying to write a script to draw geometric figures in Illustrator.I want to achieve this by writing an equation into the ESTK, for example x^2 + y^2 =100. This should generate a circle with a radius of 10 units.

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GIMP :: Create Zigzags Along A Graph / Curve?

Dec 28, 2012

create "zigzags" along a graph / curve?

For an example have a Iook at the attached screenshot from one of my favourite games (KingdomRush)...

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AutoCAD .NET :: How To Add Hatch To Closed Curve In Drawable Overrule

Apr 11, 2013

My goal is to write a Drawable Overrule, which would change the entities color to dark gray, except when they are on a specific layer. For closed-only curves in this layer, I want to add a semi-transparent hatch.

All works great, until user moves the mouse over this hatch : AutoCAD throws a fatal error and closes. I've no exception in debugger...

When I remove the code concerning the hatch, I've no error at all.
 
Public Class ClosedCurveDrawableOverrule Inherits DrawableOverrule Public Const HighlightColorIndex As Short = 1 'Color Red Public Const BaseColor As Short = 251 ' Color DarkGray Public Const SpecificLayer As String = "Layer1" ' Set our transparency to 50% (=127) ' Alpha value is Truncate(255 * (100-n)/100) Public [code].......

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Maya Animation :: Graph Editor Showing Only One Curve At A Time

Mar 5, 2012

My Animation Graph Editor is only showing one animation curve (for one attribute) at a time after I have set multiple keyframes for the character set and various attributes. I select multiple attributes, and hit View-Frame All, and it only shows the top attribute of the selected attributes as one curve.

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Maya Modeling :: Sweep Profile Along A Closed Curve / Spline?

Jan 29, 2014

It's possible in maya to sweep a profile along a closed curve? Like in 3DsMax, for example to make a window frame with a particular section profile?

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AutoCAD Inventor :: How To Make Surface From Equation

Nov 26, 2013

I need to make a model of saddle surface. The surface is given by equation z = y^2 - x^2, and I must have some thickness - It will be printed on 3D printer.

I have Inventor 2014 and I dont see possibility of making the surface directly in Inventor. Is there any trick for that?

I'm afraid I cannot use solution as stated here Equation-driven surface , because saddle surface looks like this hyperbolic paraboloid .

I tried this solution: I made 3D surface in Matlab, exported it in .stl and opened in Inventor - but this only makes the surface with no thickness. Functions extrude, loft require 2D sketch.

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AutoCAD Inventor :: Equation For Rectangular Pattern

Feb 22, 2012

Can an equation be used to calculate equal distances when using the rectangular pattern.Regarding the attached .ipt file i would like to place 25 holes in the X direction with equal gap size between each hole.Also how to calculate the number of holes in the Y direction again with equal distance between each hole.I have not done this before with equations but was thinking that i would need to use the Length x Width in the equation.Do i need to add figures into the Parameters box also?

The attached file with the Hole feature the sketch is not constrained for the purpose of using an equation so i know how far from the start of the part to get equal distances between each hole to the end of the part .

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AutoCAD Inventor :: Writing Equation In Parameters?

Mar 7, 2012

I need to put the following into equation form to plug into a User Parameter:

if d91 falls in the range of 4" to 11"

then d92 = d91 + 2"

else d92 = 7.5"

Windows 7 Pro, SP1
Inventor 2012 SP1

Due to the nature of our business, I am not permitted to attach any files showing models or .idw environments of any actual work-related components.

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AutoCAD Inventor :: Parameter Equation Column

Sep 23, 2013

how can i access the value in this column using vba?

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AutoCAD Inventor :: Polar Equation Input

Sep 24, 2012

I need to put in the polar equation r=e^theta. Is this even possible in autodesk? How can I do it? Should I spline through points instead?

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AutoCAD Inventor :: ILogic Show Equation Instead Of Value?

Jan 16, 2012

We have some equations in our templates which i have modified with iLogic. Once the rule is run it only shows the value and not the equation. ie i want it to show Thickness*2 instead of just '12'. The ilogic will say something like InnerRad = Thickness * 2 Is there a way to make it show the equation rather than the value? While i know whats going and can see the driven link in the parameters the planned change to 2012 could take some getting used to for users.

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AutoCAD Inventor :: Converting Equation To Numeric?

Mar 23, 2012

I was trying to use ipart to create some parts and place the relevant dimensions in the table format in the idw file.  However, the equation for the dimensions appeared and I like to have it as numeric.  Also, the feature present or absent is preferred to be called "Yes" and "No" instead of "Computed" and "Suppress" respectively.

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Illustrator :: Can't Edit Graph Value Axis When There Are Multiple Graph Types In One Chart

May 30, 2013

Illustrator can make graphs with lines and bars / columns, for example from the docs: [URL] .....
 
However, when I create a graph like this, I seem to lose the ability to manually set the value axis using "override calculated values".
 
To reproduce this problem: Create a graph like the example, with bars and an axis on the left, lines and an axis on the right. Unlike the example, don't fix the numbers so the lines match up neatly - have one side go up to just under 20, one up to just under 250, so there are mismatched markers and numbers of divisions on each side.Try to make the markers and numbers of divisions match up, so the side that goes up to 20 actually goes up to 25 and has the same number of divisions as the other side.Everything I've tried doesn't work:

If I select the whole graph and go to 'Graph Type', I can't set Value Axis options. In earlier versions it's greyed out, in CS6 I can access it but clicking 'Okay' does nothing.If I select the whole graph and chose one graph type, I can set the Value Axis options, but that selected graph type then applies to the whole chart,If I use the Group Selection tool to select one of the series, and open 'Graph Type' options, changing the Value Axis options has no effectIf I use the Group Selection tool to select all series that share an axis and open 'Graph Type' options, changing the Value Axis options still has no effectIf I use the Group Selection tool to select the axis ticks group itself, or the axis line and axis ticks groups themselves, or the axis labels, axis line and axis ticks, or the axis labels, axis line, axis ticks and associated data series, etc, changing the Value Axis options also has no effect 

It seems like this feature is broken and it seems like the example in the manual was carefully chosen to use a rare combination of numbers where it would actually look right.

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Illustrator :: Insert New Data On Existing Graph / Graph Deletes

Jun 25, 2013

When I insert new data on an existing graph (for example, just adding a new year of data) and press insert, it just deletes the graph entirely. My only option is to recreate the entire graph which is frustrating because I lose its format and colors.

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AutoCAD Inventor :: Using Drawing Dimensions To Drive Equation?

Nov 2, 2011

I have an asssembly stack and I have a known bending moment at a given place (ie the datum). I want then to create a drawing of this stack up and show the bending moments at known locations beside the relative dimension.

Now I can do this manually no problem...but I would like this drawing to update automatically. ie the stack up height(s) change and i want the bending moment figure to update accordingly.l

Is there a way to do this with drawing dimensions? ie dimensions created in drawing mode?

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AutoCAD Inventor :: Linking (equation) Part To Its Own Assembly

Oct 14, 2011

I have a small assembly with the parts. I'm doing an array (pattern) of one of the parts and I tried to do two things without success:

1. Tried to link one of the parts to the assembly itself with the equation tool ,but the software doesn't let me do it and says "...was rejected since it causes a cyclic dependency" - so what?:-) I know and need to do it!

2. After rejected the first choice, I tried to "project geometry" some stuff of the pattern I created in order to try and and make my connection in this way, but then I got a similar rejection: : problem encountered when doing cross part projection"...probably it's because it's from a pattern I'm creating from the part I'm doing this sketch inside?

What Can I do in order to bypass these remarks and make it somehow? Most important, Why can't one "tie" something from a part to its own assembly in which it's located???

Inventor 2012 Pro.
I7 workstation

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AutoCAD Inventor :: Text Parameter - Equation / Nominal Value

Nov 26, 2012

Is there any way in which the text of a text parameter, which is in the equation column, can be replicated into the nominal value column in the parameters table? I want to reference the value of the parameter in Custom iProperties but it always comes up as blank because it has no value.

I need it to update automatically, e.g not entering the value manually.

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Illustrator :: Graph Tool - Display Values On Graph

Feb 4, 2014

I have a column graph. I want the data values to display in the columns. How do I do that? Here's what I have now: 

I want the values 270018, 283148, etc. to display in the graph. Is that possible?

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