What does this dimension mean in spline?
magnitude is the total length regardless of which direction.
That's a very good question. I have no idea what that dimension is and I have no idea how to get those types of splines to work consistently or correctly. I have seen in newer releases they have a better "style spline" that doesn't have all those handles that always get messed up for me. You may have a look at that type of spline and see if it works for you.
If the intention is replacing the “spline” with “style spline” SW will get rid of “spline” but that is not the case. I went through the help file as well but there is no clear explanation. In YouTube video also explanation is not clear.
that is the magnitude of that spline handle.
Coordinates means X, Y, and Z values. What does magnitude mean?
What is meant by chord length?
The chord length is the straight line segment along an arc, whereas the arc length is the length of the arc itself -
Here it is with a spline -
It looks like this is what you are seeing -
Style splines are easier to dimension in my opinion . . .
What is this 39.46?
That is another magnitude dimension, like the first one you asked about.
It seems definition is inconsistent.
well that is a different spline handle, on a different spline...
Please take the advice of Todd Blacksher and use style splines, you will save yourself a lot of trouble. I am not even sure how you would fully define a regular spline. Just to give you an example, I used a regular spline to define a parabola for a project and one of those handles got inadvertently moved and it threw everything else off. Guess how long it took me to catch that...
What my professor said was after completing the work at end go to spline sketch and fully define the spline using fully define tool.
You can do that. And honestly I don't know the parameters of your assignment. However, most of the users on these forums probably would dissuade you from using that tool. You will end up with a very messy sketch with dimensions all over the place.
I would be curious as to what guidance J. Mather would have about this. He teaches SW, I just use it.
Matt Peneguy wrote:You will end up with a very messy sketch with dimensions all over the place.
Matt Peneguy wrote:
You will end up with a very messy sketch with dimensions all over the place.
This was the reason my professor told to use the fully define tool after completing the work. In my little knowledge I realized that fully defining a spline was not a challenging one but very messy.
I do not have access to SWx at the moment to give a more complete description or example, but you can think of that magnitude as a "weighted influence of tangency". The larger the magnitude-the flatter the curve at that node.
You can also.... got to run, back in a bit.
The weight is a unitless value.
You can dimension the locaton of the node, the weights of the handles, the angles of the handles relative to some other geometry or use horizontal or vertical or colinear relatons.
What you are saying is absolutely correct. I came to know this by trial and error procedure.
Some YouTube videos are saying magnitude is a unit-less value but I saw units in some videos. Is there any way to measure the length of the handle? I tried with the measuring tool but it didn’t work.
I have never seen units on the magnitude dim. pretty positive they are unitless. what units would you expect them to be?
if you can be more specific on the units you saw, we may be able to decipher what it was.
SolidWorks Spline Basics - YouTube
youtube is blocked here.
but I just did a test, and yes SW is displaying a unit, and if you switch units, it converts the value to the new units. totally weird.
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