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.
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?
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 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
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.
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:
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.
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.
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].......
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.
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.
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 .
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.
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.
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.
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.
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?
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???
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.