AutoCAD Dynamic Blocks :: Prepare Linked Chain Around Defined Path - Rotation Action
Jan 11, 2013
I need to prepare a linked chain araound a defined path. (Please have a look at the attached drawing) My idea is to have one element of the chain defined as a dynamic block and to manually "rotate" one side of the chain element. After that inserting the next element (previously aligning the user coordinate system) and "rotating" the right part again to the next position...
After doing the rotation, the block definition will change and the next block will be "disformed". So far no big problem, but the grip of the rotation parameter will stay there and I am not able to "rotate" the right part back into the old position (0 degree).
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Mar 22, 2013
So I've done a reasonable amount of work with dynamic blocks. I have a block with a rotation action and grip to arbitrarily align it. However I realized when trying to combine it with an alignment grip (which actions on the basic or fundamental block rotation angle) that there didn't seem to be a way to some how link a dynamic block rotation action or one of the custom angle properties to a the fundamental block rotation angle. Thus there are two additive rotations at work; the dynamic block one with its grip and the fundamental rotation property.
This can cause some confusion when one person aligns with the grip and another via rotating the block's fundamental property and would also be problematic in the generalized sense if one was trying to select or programmatically read back the net angle alignment.
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Jun 14, 2012
Is it possible to mirror a rotation within a dynamic block?
See the attached drawing. I am trying to have two rotations within a dynamic block, but only one grip. When the grip is rotated one half of the block rotates while the other half rotates in reverse. The resulting action would be much like the wings of a butterfly.
I have tried many different combinations of parameters, actions and constraints with no luck. The block in the attached file was as close as I could get. Have I reached the end of what AutoCAD is capable of?
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Mar 15, 2012
I have created a dynamic block with several visiblility states. The block works great for what I need it for. however, I am trying to add one more action to the block but am having issues.
This block is essentially a 24" retail cabinet with the visibility states showing the different drawer and shelf configurations. I want to be able to lengthen the cabinet in 24" increments and have the visibility show for each 24" section.....e.g. I want a 10' cabinet so I bring in the 24" starter block. Then stretch the cabinet to the 10' mark, then I can chose any drawer/shelve config for each 24" section (they are all different).
I can get the block to stretch in 24" sections....no problem.....i just want the visibility state to be duplicated as well for each section. Now as it stretches, there is only one Vis state and it only populates the first cabinet.
I could do this by copying the block over and over 5 times.....but I am hoping there is a way to make this dynamic.
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Jan 28, 2011
Sure wish you could manipulate the Column Offset of an Array Action with a Stretch Action.
CSHADEDESIGN|AUTOCAD LT|LT-KB|DYNAMIC BLOCKS
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Sep 18, 2013
I'm working on a drawing and I want an action to work on two diffrent dynamic blocks.
In my case, I wish to have two blocks that I can rotate by one rotation grip.
How do I manage to work this out?
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Aug 24, 2011
I've got a block that has a couple of rotation parameters. The main one works OK. But the secondary one that is incremental and only 180 doesn't. Everything looks OK but the objects don't rotate according to the parameter but 90 degrees from what I think it should.
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Dec 14, 2012
This is just a basic block to specify a section plane. What I would like to have is a BPT with 4 rotation options (0, 90 180, 270) that would rotate the whole block but it would keep the text upright and be able to stretch the ends of the arrows. I know I must be including/not including something important. Pointers on how to do this
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Nov 23, 2011
if it's possible to link a rotation with a stretching action. I have a text (or an attribute) inside a box that can be stretched. But if the box becomes too small to hold the text horizontally, I would like that the text automatically rotate vertically without any other action that stretching the box. If that is possible, is it also possible that instead of a text, there's an attribute, and that it rotates according to the attribute's length ?
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Jan 12, 2012
I have attached a drawing that I am trying to stretch two lines - one lengthen and one shorten as I rotate the connecting line.
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Oct 6, 2012
But I was wondering if it is possible to contol the insertion of dynamic blocks and it user definerable parameters from a excel-text file.
I am surveying a section of pipework and I need to display the brackets that are supporting the pipes. As there are numerous pipes on top of each other I have decided to show the brackets in plan and isometric view.
I think I have made the dynamic block ok and have numerous stretch/move and scale parameters working correctly.
But the only way that I can see of chaging these parameters at the momment is by manually typing them in the properties tool pallete for each individual block.
So I was thinking that if I can store the correct values that I need for each parameter in the dynamic block on our data logger along with the correct E,N,Z insertion point is it possible for this file to change the parameters in the dynamic block for example, If I have the correct insertion point stored and then have 10 parameters stored with that point for simplicity I store as A=5.00,B=8.00,C=0.100 etc and these correspond with the parameters in the dynamic block will this file be able to alter the dynamic block as the values in the excel/Text file are displayed.
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Jan 22, 2012
I have been trying unsuccessfully for several days to achieve a stable setup for the attached. This is the closest I have been able to get so far but as you can see if you change the width then the rotation parameter, the stability of the block very quickly breaks down.
The problem seems to be associated with the move action which determines the center point of the angle parameter. It seems to only work properly when you change the width parameter and the rotate handle is in the 180deg. Any other position of the angle parameter results in incorrect alignment of the geometry.
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Jan 9, 2013
Just exactly what does "Angle" represent when placing a "Rotation Parameter" in a DBlock?
I've tried a bunch of diff angles and haven't noticed a difference. I'm trying to figure out just what effect diff values would have. I thought that maybe when rotating the block instance, I'd only be able rotate it "so far" (270 degrees in the example I've shown). But it still went well beyond that.
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Jul 10, 2012
I have a rather unusual problem. I'm using AutoCADLT2013. I have a dynamic block, with chained parameters. The block works perfectly, however, I'm expanding the contents, and trying to add more polylines to existing actions.
I have the following Actions showing: Stretch, Lookup, and Visibility. All of these actions are on unchained Parameters. The 2 Actions I'm missing are Arrays, both on chained Parameters with no Grips.
I've used ACTIONBAR on both Parameters (Show, then Hide, then Show again, I don't want to use Reset!), yet the Action Bars still won't show!
I've been messing for nigh on 2 hours and I can't figure it out. To make things worse, I can't use the Parameter Manager, due to it disappearing when in Block Editor.
I really don't want to have to start again, as it was a right pain in the rectum to get to work right.
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May 22, 2013
i work at a small structural firm and am about the most experienced cad user here, which isn't saying much. I have never wrote any LISP's or anything, but have created many dynamic blocks and have edited some programing my boss got from a previous employee for adding dropdown menus with blocks/layers/etc. Just so you know my level of knowledge when it comes to answering my question. Also I am limited to using 2009 but other co-workers have up to 2013 so i would like this to work for all users. And i have done a bit of research but based on everyone elses level of knowledge am finding a lot of conflicting info and solutions that, to me, are in another language.
So I have a table that is created using polylines and text. It's a funky shape and AutoCAD's tables are a pain for it. i have created a dynamic block where i can array the rows down and the columns left. The issue is, i would like the test to come with each row, but still be editable once the block is done. I have figured out if row one is composed of 5 columns of text put into a single attribute, it is fine. But once you use the array action, to say 3 rows (including now 3 sets of attributes) they are not editable. So what is the work around, if there is indeed a work around?
the two option i see are to only array the rows and columns and left the text outside that block and manually copy it done to how ever many rows the user needs.... Or to have 2 blocks come in together, one as described before, and the other which just arrays the text and then i explode it to edit each line.. but then if you later choose to addd another line you would be left with doing that manually anyway..
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Sep 17, 2013
I'm having an issue with the action bar locations. While I am creating the dynamic block, the actions all attach them selves to their respective parameters. The problem is that somehow at some time, the action bars change their mind and all lock down to the origin. All my action bars and icons are on top of each other. Is there a parameter to adjust to make the action bars move back to their parameters? Images are attached.
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May 9, 2013
I would like to stretch my extruded shelf using a list of value settings.
I completed the steps in block edit but it will only allow my object to move to my value sets.
In 2D I have no issue.
What am I missing when modifying 3D objects.
See attached blocks.
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Jul 15, 2013
I foolishly thought i'd sorted making hatch work within a dynamic block that requires user input to set length and width of block...the hatch would fill to the revised size when the user sets the length and width in the properties dialogue...woohoo. Off I go home from work having defeated the nemesis of the day.
Open up my drawing today and can I get the hatch to act as it did yesterday?
I built my block (a simple rectangle all told) added my parameters in block editor. length and width linear actions with 0 grips as I don't want stretching by grips. Added the stretch actions. Tested the block (without hatch)...working. Only then did I hatch, so into block editor and using associative, send to back, normal island detection and selecting the rectangle to hatch. tested block ...working. great. Inserted the block into new drawing...working.
Opened AutoCAD today...Not working...hatch remaining as original size
Tried building new block exactly as I did yesterday...no joy...
On a side note...it works if I leave grips on but only if I use the grips to activate the hatch (it still doesn't work by just typing into properties though) that's not going to cut it as I don't want to be telling everyone to wiggle the grips so to speak.
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Oct 4, 2013
I cleaned up my block and I am trying to use a field to reference a polyline for it's overall distance. The distance changes with my lookup action. After rotating and going back and forth from "On" - "Off" - "Both Off", then back to "On", the red polyline doesn't stretch back on it's original plane.
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Nov 14, 2011
I have 3 circles, randomly spaced. They will always be the same size. I want to resize them all about there centre points using just one parameter in the properties fly out. I've created individual linear/stretch for each circle, but I can't work out how to combine them.
AutoCAD 2012 Structural Detailing SP1 & Revit Structure 64bit
Win 7 64bit
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Jun 10, 2013
I am relatively new to dynamic block. I have generated a dynamic block that has four hole. I have HDistance and YDistance linear parameters set with mid point as their base location and action assigned so that they spread apart equally in horizontal and vertical direction and it works fine.
I am now adding another linear parameter (to change hole diameter) by trying to assign scale action, to increase or decrease hole diameter of all four holes simultaneously.
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Jun 23, 2011
is there a way to associate a stretch action with the length of an attribute value (i.e. # of characters in the string) or is this something left to vlisp?
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Dec 3, 2012
I have a block which is a simple rectangle with a height and width attributes that when I edit, change or update the height and width attributes I want the rectangles height and width to change as well.
I know I can go backwards using fields and the attributes would show the stretched length and width but is it possible to go the other way?
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Apr 1, 2012
For our office I'm trying to figure out (so far without success) how it might be possible to constrain movement of a block's geometry to a single plane?
I can use a stretch grip but that will mean you can go in one direction only (positive) not negative, I want the freedom to be able to move backwards and forwards in the X-Plane.
Block I'm working on (progress so far) attached. It is designed to display height relative to a datum point in the block, and for use in drawings so you can place it all over and pick up levels to top of things like steels.
The block allows the use to pick the stretch grip to go up, so the objects moved will be to a point which will be relative to the base point of the block, which will be set at a datum level for the drawing. Relative to the base point a field will extract the y-coordinate of an object in the block, add a suffix of mm, that will then be the level relative to the base point.
I want the move command constrained to move the block geometry in the drawing but only in the x-plane; if the entire block moves accidentally in the y-plane it will also move the base point also, which destroys the idea of measuring against a fixed datum.
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Sep 12, 2012
I've got a block with 2 lines of text, the second line being optional. If the second line is omitted, the first line should be moved down, so it's centered.
I can handle the second line being omitted with a visibility parameter. And I can handle the first line being moved down with a move parameter. But how can I link the two?
Ideally, I'd be able to re-use the line 1 attribute and display it in whichever place was correct, but that doesn't seem to be possible.
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Aug 2, 2012
I consider following problem: is it possible to create dynamic block with strech action include wipeout object (frames are turned off).
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Oct 18, 2011
I have a block which I want 2 visibility states. VS1 and VS2 share some objects and not others. I have a linear parameter in each which I want to do a stretch action on. The stretch action in each visibility state acts upon entities both shared and unshared between VS1 and VS2. This doesn't seem to work..
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Dec 1, 2013
I need to use the dimension created by an action-parameter as a variable in a user defined function but AutoCAD will not allow me (see attached).
How may I access the action-parameter's dimension ?
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May 5, 2010
I've made annotative blocks and I've made dynamic blocks... My intent is to integrate both but I can't find a way to move dynamic block parameters separately at different annotative scales.
In other words, if I insert an annotative dimension and add multiple scales I can move the dimension grips independently at each scale. If I insert a dynamic block I want to be able to use the dynamic block's action "grips" to do the same. However, with a dynamic block, if I move a stretch action at one annotation scale it moves the action at all annotation scales.
The attached file shows a simple example.
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Jan 13, 2014
To summarize: It seems that compounding a path resets the rotation of the gradient to it's original degree of rotation.
Detailed version:
1. Create a shape.
2. Add a gradient fill. Note it's degree of rotation. Let's say it's set at 10°.
3. Now rotate the shape by any means (transform or rotate tool). Note the gradient degree of rotation has shifted the same amount as the shape was rotated (if it was rotated 50°, the gradient will show at 60°).
4. Make it a compound path.
5. Instantly the gradient shifts back to it's original degree of rotation of 10°.
It appears that when rotating a shape with a gradient, the rotation of the gradient is locked to the rotation of the shape. But when making it a compound shape it releases that lock and "remembers" it's original state. But that is only true as soon as you make it a compound path, but if you no go ahead and rotate it just a bit using the cursor (as opposed to selecting transform > rotate), the gradient will switch back to how you would expect it to rotate in the first place...
Workaround would be to make it a compound path before rotating the shape at all.
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Apr 23, 2013
I have a block I am making into a Dynamic Block. I will be adding in different visibility states. Depending on the visibility state the block would need to be inserted from a different point.
My question is, is it possible to add multiple insertion points to a dynamic block so depending on the visibility state it defaults to the correct insertion point?
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