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Hello I created these functions, but neither of them can change the layer names to uppercase or lowercase. The strange thing is that this routine has been used for a long time. FlagCaixa= 0 (abcde.....) FlagCaixa= 1 (ABCDE.....) ;sample 01 (defun AlteraCaixaNomesLayers ( FlagCaixa / CollLayDwg ObjVlaLay TxtNomLay LstLayDwgNew ) (setq CollLayDwg (vla-get-Layers (vla-get-ActiveDocument (vlax-get-acad-object)))) (vlax-for ObjVlaLay CollLayDwg (setq TxtNomLay (vla-get-name ObjVlaLay)) (if (and (/= TxtNomLay "0") (/= TxtNomLay "Defpoints")) (progn (if (= FlagCaixa 0) (progn (vla-put-name ObjVlaLay (strcase TxtNomLay)) ) (progn (vla-put-name ObjVlaLay (strcase TxtNomLay T)) ) ) ) ) ) ) ;sample 02 (defun AlteraCaixaNomesLayers ( FlagCaixa / TxtNomLay LstLayDwgNew NomObjLayDwg LstNomObjLayDwg ) (setq LstNomLayersDwg (GeraListaNomeLayersDoDesenho)) (foreach TxtNomLay LstNomLayersDwg (if (= FlagCaixa 0) (progn (vl-cmdf "rename" "la" TxtNomLay (strcase TxtNomLay)) ) (progn (vl-cmdf "rename" "la" TxtNomLay (strcase TxtNomLay T)) ) ) ) (vl-cmdf "regen") ) (defun GeraListaNomeLayersDoDesenho ( / for-item LstNomeLayers Layer_name ) (vlax-for for-item (vla-get-Layers (vla-get-ActiveDocument (vlax-get-acad-object))) (if (and (vlax-property-available-p for-item 'Name) (/= (vla-get-Name for-item) "0") (vlax-property-available-p for-item 'Freeze) (= (vla-get-freeze for-item) :vlax-false) (vlax-property-available-p for-item 'LayerOn) (= (vla-get-layerOn for-item) :vlax-true) (vlax-property-available-p for-item 'Lock) (= (vla-get-lock for-item) :vlax-false) (not (member (setq Layer_name (vla-get-Name for-item)) LstNomeLayers)) ) (progn (setq LstNomeLayers (cons Layer_name LstNomeLayers)) ) ) ) (vl-sort LstNomeLayers '<) ) Thank you if anyone can help me.

The concept is incorrect. To be equidistant, every point on the centerline must be the same distance (perpendicular) from the two margins.

I know its late by few months. May be, somebody in future will find it useful. I accidentally came across this post while browsing and found it interesting. So, I decided to have a go at it. After spending about 10 hours over 2 days (I am little out of touch with AutoCAD currently) exploring various options, I came out with following AutoLISP code that does the job. It assumes that every dimension embeds exactly one and and only one Mtext object. (defun c:DimMTextWidSetZero () ;;;;; Sets fixed width of MText (embedded in dimensions) in all dims to 0. No user interaction requred. ;;;;; Disclaimer: No error-checking or validation is included. (vl-load-com) (setq reqdObjName "MTEXT") (setq dims (ssget "X" '((0 . "DIMENSION")))) ;;;; Create a selection set of all dims in the drawing. (setq kounter 0) (while (< kounter (sslength dims)) (setq enameDim (ssname dims kounter)) ;;;; Process the dims one by one (setq nameBlkDin (cdr (assoc 2 (entget enameDim)))) (setq eNameBlkDim (tblobjname "Block" nameBlkDin)) (setq reqdEnt (entnext eNameBlkDim)) (setq objName (cdr (assoc 0 (entget reqdEnt)))) (while (/= objName reqdObjName) (setq reqdEnt (entnext reqdEnt)) (setq objName (cdr (assoc 0 (entget reqdEnt)))) ) (if (= objName reqdObjName) ;;;;; If it is mtext (progn (setq objMtxt (vlax-ename->vla-object reqdEnt)) (vlax-put-property objMtxt 'Width 0) (vla-Update objMtxt) (vla-Update (vlax-ename->vla-object enameDim)) ) ) (setq kounter (1+ kounter)) ) ) A couple of interesting points: 1. Nobody mentioned about DimStyle used - Dowels. If you insert a new dimension using the same dimstyle, there are no spaces. In fact there is no access manually to the 'Fixed Width' of MText embedded in a dimension. 2. I could not manually create a similar dimension, So it seems that the problem has been created by translation or the fixed width of the MText is modified using code AFTER dimensions have been inserted. 3. There does not seem to be reliable / consistent method to manually modify the fixed width of the MText. I have attached the drawing file generated after running the code. Enjoy! dim_test_file_OUT.dwg

I have a few doing pretty good, but as you show, there is no one perfect way. I broke your Axis Example.dwg into one bend area per section and several of the LISPs did a lot better. If you have a .dwg with any more difficult sections like the one shown, please post it. I'm not back to work until Monday, but will try to find time at home to fine tune a LISP solution.

I have moved your thread to the Civil 3D & LDD Forum, please post in the most appropriate forum.

I have a point cloud (RCP) file that I attached in Civil 3D. This point cloud (RCP file) contains numbers of LAS files (individual scans of road pavement). My manager wants me to use civil 3d to measure the cracks/damages/distress of the road by working on this point cloud file in Civil 3D. I dont know what to do. What should I do? What should be my workflow (step by step procedure) to be done in Civil 3D. What commands should I use? I badly need your advise/mentoring on this one guys. Thanks in Advance.

COGO Plants - Metric.dwg

Anyway, the result obtained by Dexus's code is one of the best (perhaps the best) I've found on the web. Thanks for that, Dexus

Hi, I’ve tested @dexus's code and it’s definitely the best one that has appeared so far. I only found a small discrepancy in one area where it seems that obtaining the correct centerline is actually possible (see the first image). Everywhere else, the centerline seems to have been achieved whenever it was geometrically feasible. One small point that might be improved is in the area where the margins widen (as shown in the second image). Although getting a truly equidistant centerline is impossible there, it might still be worth trying to ensure that the perpendiculars to the centerline hit each margin at distances that aren’t too different from each other. As you can see in the image, there’s a section of the centerline (near the point where it turns north) where the right margin falls outside the acceptable range. I think @lrm's bisectors give a good hint of the path the centerline should follow in order to avoid this.

Rather than explode the COGO point what are you trying to do ? I have for example write the RL of a cogo point as text next to the point. We used this as a quick reference when designing, we would select only the points that we want to see the RL. It could be expanded to say label XYZ, PtXYZD etc. The tree block should be on the correct layer according to your Description key Sets. A side note it's possible to update a cogo point dynamic block, I have something that does just that, it looks at the description, so TR6*300, dynamic block has a trunk and spread 2 objects, running my lisp would get a 6m spread with a 300 mm trunk. @Steven P the COGO points in Civ3D are proxy objects. In a dwg if labels are off can not turn on in ACAD. I am looking at talking to Bricsys about getting at "AeccXUiLand.AeccApplication." when a civ3D dwg is opened in Bricscad. Getting at CIV3D objects via lisp can be easy or difficult.

Up load your LISP so we can have a look. I suspect you will want to explode the block and then use entlast select it ready to move it to the correct layer - that might be enough of a hint? Since you have the entity name, I would just use entmod to change the layer

Hi everyone, I'm currently trying to write a routine that handles multiple selected objects. In my drawing imported survey points are automatically stored as COGO-points with a specific point label style (a block reference defined by description sets). The problem is upon exploding the COGO-point (twice) it's layer is reverted to 0. Therefore I need a routine to change the layer back to the one defined by the corresponding description key. This routine should: prompt for selecting object(s) - COGO-points only for each COGO-point do the following store its layer to a variable (eg. "XX_TOPO_TREE") explode the COGO-point - which will result in a block reference with name *Uxxx (eg. *U123) explode the block - will result in a named block on layer 0 (eg. "sym_topo_tree") change the block layer to the one stored before After trying to teach myself AutoLISP over a year ago I almost forgot anything I've read due to a longer break. Now I am starting from the beginning again. Since it would take some time until I get this on my own, I hereby ask for a solution / a lisp routine. Best regards

Yes Civil Site Design is a full Civil design package, Surfaces, Roads, Gradings, Drainage and Sewerage. It is sold world wide, in particular in available for CIV3D and Bricscad. They do a OEM Acad as well. https://civilsitedesign.com.au/ There is numerous YouTube videos showing features and how to's. https://www.youtube.com/@CivilSurveyApplications If you have a particular design task let me know I can make enquiries for you, but they are very helpful. I have known the Director for like 40 years so its a product that has that type of on going improvement history. It uses much more intelligent DCL's for data input than CIV3D. Look at the Youtubes.

The polylines that are on planes that pass through the world point 0,0,0, will have an elevation of 0. Planes that do not include 0,0,0 will have a non zero elevation value. 92.8477 is the distance from the plane of the polyline to world 0,0,0 measured in a direction perpendicular to the plane. Review my previous post then try the following: Create a point at world 0,0,0 Create a UCS that contains the polyline that hast the 92.8477 elevation so that it is on the XY plane of the UCS. Select the point and note that it z coodinate is + or - 92.8477

The image...

In the attached DWG file, a truncated pyramid was drawn with a unit of constants (UCS) on each face. The elevation of one of the polylines is 92.8477 and the other is 0.00, which does not correspond to the observations. UCS x Polyline problem1.bmp

In the following image the green plane lies on the World XY plane while the red plane is above it and tilted. The white polyline was drawn on the red plane by setting the ucs so that it's Xand Y axes were coincident with it. Here's a front view with the World ucs active. Same view but with the UCS of the red plane active. The perpendicular distance from the plane of the polyline to World (0,0,0) is the polyline's elevation. Note that if the polyline is moved by 0.5 in the z direction of the red plane the elevation changes by 0.5. So the anser to the question "Can I change a polyline in my new coordinate system so that it has an elevation that conforms with the World system?" is, It Depends. The UCS of the polyline must be parallel to the world ucs but you would need to also make it coincident to the World UCS!

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AI-driven tools can already assist with tasks like layer management, error detection, and standards compliance. In the future, we can expect to see even more advanced capabilities, like automated file organization, intelligent version control, and predictive suggestions for design improvements. Automation will also streamline repetitive file management tasks, freeing up designers and engineers to focus on creative and technical challenges rather than administrative overhead. Autodesk AI is at the forefront of these advancements, integrating cutting-edge technology to enhance the design and engineering processes. By leveraging machine learning algorithms and data analytics, Autodesk AI provides intelligent insights and automation features that are tailored to the needs of each user. Whether it’s optimizing designs, automating routine tasks, or providing predictive analytics, Autodesk AI empowers users to achieve higher efficiency and innovation in their workflows. As AI continues to evolve, Autodesk remains committed to developing solutions that drive smarter, faster, and more reliable CAD workflows. Conclusion Understanding, managing, and converting CAD files are essential skills for anyone involved in design, engineering, or manufacturing. From creating precise drawings in AutoCAD or AutoCAD LT, to viewing and sharing designs through tools like Autodesk Viewer and AutoCAD Web, today’s CAD workflows are more flexible and collaborative than ever. We’ve explored the benefits of converting CAD files to PDF for easy sharing, as well as strategies for turning PDFs or hand sketches into editable CAD files. Along the way, best practices like version control, cloud storage, and careful file management help ensure accuracy, efficiency, and smooth collaboration. As CAD technology continues to evolve, adopting smart file management strategies will be key to keeping pace with increasingly complex projects. Efficient CAD file management not only streamlines workflows but also helps protect your intellectual property and deliver better design outcomes. If you’re ready to take your CAD workflows to the next level, explore Autodesk’s suite of tools and resources, from cloud-based platforms to specialized industry toolsets, to support your next project. The post CAD Files: Understanding, Managing, and Converting CAD Files appeared first on AutoCAD Blog. View the full article

When you draw a regular polyline (not 3D) in a coordinate system that is not the World system, it belongs to that system. Whatever the Z coordinate is for that first vertex, that's the elevation for the whole polyline. In other words, the whole polyline conforms to the XY plane for that system. You can draw a polyline in some random coordinate system, and if the first vertex is at Z=0, the elevation will be 0 no matter what the current system is. (I know because I just drew some polylines in random systems.) If you change the elevation, no matter what your current coordinate system is, the new elevation takes effect in the other, original system--the one it was drawn in. When you draw a polyline in the World coordinate system, and the first vertex is at Z=0, the same rules apply. The polyline belongs to the World system, and any changes to the elevation (or any of the vertices) are applied in World coordinates. Those changes will give you the results you probably expected. On the other hand, if you change a polyline that is not in the World system, you may get results you didn't expect. Your next question will probably be, "Can I change a polyline in my new coordinate system so that it has an elevation that conforms with the World system?" The answer is Yes, if you have Civil 3D. Otherwise you'll probably need to redraw the polyline in World coordinates.

No. I need to update. We're currently on c3d2024. I'm curious, what is "civil site design"? Is this a separate addon? I use corridors, intersections, etc. for roadway design. However, I haven't found anything better for site design than featurelines. If I am missing something, please educate me.

In this DWG file, we have 4 different UCS. where 4 polylines have been drawn, and two of them show an elevation other than zero. I don't understand the value 92.8477 for the elevation. UCS x Polyline Elevation.dwg

You need to post the .dwg and give a more detailed explanation.

Glad it works. Yes.