Linear parameter - variable maximum
The attached drawing shows you two ways of doing it.
The square on the left uses a linear parameter with two stretches attached to it. The stretch1 action has an angle offset of 90 degrees.
The square on the right uses a scale action attached to a linear parameter.
Howard Walker
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Ignore my previous post. I've just reread your post. It may be possible using parametric constraints, but I only have LT so am not able to help in that direction
Howard Walker
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Using Dynamic Parameters and Actions I don't know how that could be done.
But using Parametric Constraints - attached a first attempt.
The length of the left line can be changed to any value up to 100. The length of the right line can never exceed the length of the left line, but of course can be smaller.
Jürgen Palme
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That looks like what he needs, however the problem I see is that the distance 2 grip can move far beyond the extent of the line.
Howard Walker
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I am aware of this inadequacy. Therefore @Andrzej_K. should test if this is a problem for HIM too, or just an acceptable unpleasantness.
Jürgen Palme
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When you are in the block editor choose the PARAMETRIC tab and then click SHOW ALL (see the image below)
You will see a parameter in which the minimum distance of the line is fixed at whatever the dimension D2 is currently and the maximum is set at whatever D1 is currently
Howard Walker
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@Andrzej_K. wrote:
Could you please explain how to achieve that?
A short explanation:
d1 (for the left line) is the independent parameter (only limited to max 100).
d2 is a dummy parameter, the user can set any value.
d3 is the parameter which is used for the right line. But it's value is a formula min(d1;d2). That means, even if the user set d2 to a higher value than d1, d3 (which controls the length of the right line) will use the smaller value -> the length of the right line can not be greater than the left line.
I'm not sure if you can transform this princip to your model. Formulas are only possible in Parametric Dimensions. But you have (and need?) a lot of Dynamic Parameters and Actions too. And it's not recommended to mix Dynamic Parameters and Actions with Parametric Constraints and Dimensions. You often will get "unexpected results".
I'm afraid for your model it is not usable ... But you only know after you have tried it.
[EDIT at 11:10]
Attached an image of the block editor for more clarifying.
The grip of the parameter d2 was moved to the end of the richt line (for better handling).
Jürgen Palme
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