AutoCAD Visual LISP / AutoLISP :: Create A Hatch Pattern
Jul 16, 2012
I'm trying to create a hatch pattern to match a floor tile. I want a 24" long x 6" wide plank tile. The tiles should be offset from each other 8" (a 2/3 1/3 pattern lengthwise). My problem is I only can get a 6" offset (3/4 1/4 pattern).Here's the code I've got:
Basically I have one hatch pattern that was used at different UCS values. The hatch patterns are correctly shown on the screen as shown in the attached image. But the puzzling thing is that they both have a pattern angle of 0.
I have been writing a program that globally changes hatch patterns, but the problem is that once I update the pattern, they all have the same angle. I need them to keep their current rotation when the patterns are updated. I cannot seem to find object access to what that actual angle is.
vla-get-patternangle does not seem to provide the data I am looking for.
i'm newbie in customizing tools in autocad especially in creating hatch pattern. i understand that to create new hatch pattern is by adding a new hatch pattern in acad.pat file with specific angle.
my question is is it posibble to create a hatch pattern that can use specific angle follows the object shape?
This is what autocad can do by default this is what i'm trying to create
I am in need of a lisp routine which will automatically pick up all hatch and solid hatch patterns within a drawing and change the colour to colour 254.
I'm looking for a lisp routine which will 'convert' number of 2dsolid into hatch. Drawing contains dozens of 2dsolids (solids are on one layer, there are also other entities on this layer) which have different colors, have common verticies and edges. i.e. I want to kind of 'join' solids of the same color and convert them into one hatch colored as original solids and placed on existing layer (let it be layer '0' zero for now). Same color solids can exist in few locations - there is a case to make few separate hatches of the same color (all joined solids should be represented as 1 hatch, should not separate after separate hatch command). There is max of 20 different colors (all of them from ACI index). Solids are not crossing themself or other solids (just joining with 1 or 2 verticies).
There are also 2dsolids with 'zero-area' - represented as a line - those should be erased at the beginning (not to have a line-like hatch).
I have the following code to delete all hatch in a drawing. At the end of the command there is a notice that all hatch have been eliminated.
However, the last message displayed is: "Hatch boundary associativity removed".
(defun c:deletehatch ( / d l )(vl-load-com) (setq d (vla-get-activedocument (vlax-get-acad-object))) (vlax-for a (vla-get-layers d)(if (eq :vlax-true (vla-get-lock a))(progn(vla-put-lock a :vlax-false)(setq l (cons a l)) ) ) ) (vlax-for b (vla-get-blocks d)(if (eq :vlax-false (vla-get-isxref b)) (vlax-for o b (if (wcmatch (vla-get-objectname o) "AcDbHatch")(vla-delete o)) ) ) ) (foreach a l (vla-put-lock a :vlax-true)) (vla-regen d acallviewports) (princ (strcat "All HATCH have been removed")) (princ))
Modify the attached lisp I found in this forum to work using a different hatch pattern, scale and angle. The new hatch should be in default Autocad "LINE" pattern and angle set to 90 degrees (vertical). If possible, I would like the angle and scale to be editable. Find attached Multi_Hatch-45 code posted by CADaStroumph in 2008.
Hatch objects: Note To access this property, use the IAcadHatch2 interface.How can I access the Object.Area of an AutoCAD hatch. AutoCAD 2006 has properties that can be assigned to Fields so why can't I find the object att- area in any lisp vars?
I don't give the right keywords with Google !?So from a classic selection (or ALL for ALL Blocks of the DWG) of entities,
we will keep ONLY blocks (Static or Dynamic)I am looking for a Lisp/VLisp routine to update all Color of Hatches inside Blocks when the Hatch Color is xxx If the color hatch is NOT XXX we don't update !
The problem : update all hatch from blocks where Color = 255 (or any other value)
---> other classic Color (1-256) --> RGB Color 255,255,255 or any other
I don't know at all how to switch hatch entities from classic color to RGB color inside a Block..And dynamic block in Lisp/VLisp are far from my level 0.2 in Lisp ...
I need a function that allows to convert the polylines selected with a width globalize defined in a double closed line (spaced by the same width of the polyline), with a hatch inserted automatically defined.
Brilliant idea to draw raceways quickly: instead of making handmade double lines, connect, enter the hatches all by hand, you could quickly draw the polyline with width identical to the size of the duct, and then the lisp transform it into a duct more aesthetically pleasing if compared to the full polyline!
I am wanting to build an installer to deploy some custom hatch patterns. Getting the hatch patterns onto disk is easy; however, I need to add this location as a support path (presumably via a registry entry) but the number of potential registry entries is huge given the combination of AutoCAD releases and verticals. The other option I had was to deploy the hatches to the same location as ACAD.PAT and search for this location during installation.
FYI - I plan to use Inno Setup but am not opposed to another installer.
I have a bolt program that draws the thickness of a bolts in elevation as a polyline with a global width, what i need is a lisp to then change this lwpolyline to a hatch, ie if global width is 20 and the polyline is 30 long i need to change this to a 20x30 solid hatch, is it possible to get the the global width and length and convert this to a boundary hatch? I need the same thing done for bolts in plan too as the circle is a lwpolyline also.
On another matter, I have just found the bevel lisp routine by Terry Miller which works great BUT only for imperial measurements. How to make Terry's metric, that will work for metric measurements.
I want to create a shortcut key (like TAB) for example and whenever I start a polyline or move or whatever, I can hit TAB which will grab the angle my cursor is at, and then use the angle lock to lock the cmd into that direction. (This is essentially what can be done in rhino if you are familiar with this).
The manual way in autocad is typing it ("<45") but I just want to calculate angle from the start point to cursor point. and then once hitting tab or a key or a new command, it will lock with that angle. How can I go about programming this.
Looking for example of a lisp file that take the value of a variable and create a txt file on a specific place defining by the user, with 10 lines in each one of them begins with what is in the variable, followed by a text already done.
I want to make many object cooper lines in autocad and each line has some data about its length, size, type etc. that can then extract to excel as a Bill of materials.
I have been using one routine very successfully to create a pline in modelspace that has the outline of the chosen viewports in the drawing. This one works great.
Now I am trying add other routines that I've done to better fit my needs. If I use each routine individually at the command line they work, but when I use all in a single command I got the following errors:
The routine SetColor - does not change color to Bylayer The routine RectWidth - ; error: bad SSGET list
Why?
See the attached file for more details and be free to improve whatever you want in my routines because they are very basic.
And, if I am not asking to much, is that possible to not be prompt to select objects? I mean, the routine could automatically select all viewports in the drawing...
until now I've always used ACADINST.exe to realize my self-installing setup packages for my application lisp: [URL]
Now there AutoCAD2014 which introduced some variables that affect proper operation completely automatic: TRUSTEDPATHS and SECURELOAD.
Is there a way to add search paths, modify variables, load menu, set the automatic start of a *.Lsp or *.Fas, during installation of the application, without opening AutoCAD?
i have created an Autolisp routine that creates a drawing made up of structural members, x-refs & surfaces based on a few different user inputs. I now want the program to insert the drawing as a block rather than individual elements. My Idea was simply to use the block command in the lisp routine to create a block and then have the drawing create itself in block editor, and close once it has done. however I am having difficulty thinking of a way that I can get AutoCAD to automatically name this block depending on other blocks in the drawing, i.e. in sequence. The name is irrelevent really, but it would make sence for it to be logical, so... if the last block inserted was "b7" then the next one should be "b8" and so on.
Is there a better way of doing it all together? I have read a bit into "entmake" but i'm not sure on how to use that function.
How to create macros of a drawing and then hw can we change the drawing by editing the macro. E.g.. I have drawn a circle of 30 mm dia.. than need to crate macros for same and then by changing the dia of circle in macros I want to create new circle of 50 mm dia.
Another thing I wanted to ask is what is difference between visual lisp and visual basic. Which is easier??
I have run into a little trouble in trying to figure out how to create a arc polyline with entmake. I've put together the following and it works great with command "pline". I just want to know how to do it with entmake.
(defun C:22 () (setq P1 (getpoint " Specify first point: ") P2 (getpoint P1 " Specify next point: ")) [code].......