Assistance Needed for Creating a Custom Hatch Pattern (.PAT) in AutoCAD
Hi,
If the final hatch have to look like this:
You can use the following code:
*ishaq03, custom bricks,
0, 0,0, 0,255
90, 0,0, 0,30, 15,-240
0, 0,15, 0,255
90, 15,15, 0,30, 15,-240
0, 0,30, 0,255
90, 0,30, 0,10, 5,-250
0, 0,35, 0,255
90, 0,35, 0,30, 15,-240
0, 0,50, 0,255
90, 15,50, 0,30, 15,-240
0, 0,65, 0,255
90, 0,65, 0,30, 15,-240
0, 0,80, 0,255
90, 15,80, 0,30, 15,-240
0, 0,95, 0,255
90, 0,95, 0,30, 15,-240
0, 0,110, 0,255
90, 15,110, 0,30, 15,-240
0, 0,125, 0,255
90, 0,125, 0,30, 15,-240
0, 0,140, 0,255
90, 15,140, 0,30, 15,-240
0, 0,155, 0,255
90, 0,155, 0,10, 5,-250
0, 0,160, 0,255
90, 5,160, 0,10, 5,-250
0, 0,165, 0,255
90, 0,165, 0,30, 15,-240
0, 0,180, 0,255
90, 15,180, 0,30, 15,-240
0, 0,195, 0,255
90, 0,195, 0,30, 15,-240
0, 0,210, 0,255
90, 15,210, 0,30, 15,-240
0, 0,225, 0,255
90, 0,225, 0,30, 15,-240
0, 0,240, 0,255
90, 15,240, 0,30, 15,-240
To create Hatch patterns I use this schematic diagram:
[Just bear in mind that a Hatch pattern definition will not be able to include the infill shading in your sample drawing, not even if it were all the same color.]
Writing a make pline outline is feasible as you have rules about the way the rows are made. But a big task but doable. Its a up left up right etc in patterns. I can see if the 120 is different then a new outline, or even as shown by @_gile multi rows. Or it may be as simple as explode a rectang of the hatch, and then use xtrim to removes linework outside of rectang. Hopefully then using bpoly will make a new boundary around the shape, which can have a solid hatch.
Gave it a try on a random shape, saved the hatch thanks to @_gile exploded the hatch and used extrim. Sort of got there. Tried making a new outline. But bpoly does not like gaps so some of the tile trims did not join correctly for making the shaded background. So need to think more.
I sincerely appreciate your help in providing the hatch pattern. Your support has been valuable, and I truly thank you for sharing it.
I would like to request a small modification—please adjust the pattern dimensions as per the CAD file I am sharing. The drawing is in meters, and it is important that the hatch pattern match the exact dimensions specified in the CAD file.
Additionally, there is no need for infill shading—only the pattern should be adjusted as per the required dimensions.
I am attaching both the CAD file and an image for reference. Your assistance in this matter would be greatly appreciated.
Looking forward to your kind support
I sincerely appreciate your help in providing the hatch pattern. Your support has been valuable, and I truly thank you for sharing it.
I would like to request a small modification—please adjust the pattern dimensions as per the CAD file I am sharing. The drawing is in meters, and it is important that the hatch pattern matches the exact dimensions specified in the CAD file.
Additionally, there is no need for infill shading—only the pattern should be adjusted as per the required dimensions.
I am attaching both the CAD file and an image for reference. If any other Autodesk representative can also assist with this request, I would highly appreciate the support.
@ishaq03 a écrit :
I would like to request a small modification—please adjust the pattern dimensions as per the CAD file I am sharing. The drawing is in meters, and it is important that the hatch pattern matches the exact dimensions specified in the CAD file.
I wrote this pattern according to the dimensions of the first DWG you provided.
To get a hatch with the "new dimensions", you can simply scale hatch to the fiftieth (0.02).
If you want to re-write the pattern, simply scale all dimensions the same way, replacing 255 with 5.1, 30 with 0.6, 15 with 0.3, 240 with 4.8, and so on...
*ishaq03, custom bricks,
0, 0,0, 0,5.1
90, 0,0, 0,0.6, 0.3,-4.8
0, 0,0.3, 0,5.1
90, 0.3,0.3, 0,0.6, 0.3,-4.8
; ...Thank you for previously providing the .PAT file codes. I appreciate your support.
I would now like to create a custom .PAT file similar to the pattern shown in the attached image. and drawing The pattern consists of:
- 8 big rows, followed by
- 1 small row, then
- 4 big rows, followed by
- 2 small rows
This drawing is in meters, and I request that the pattern dimensions be followed exactly as per the attached drawing
.
If you do not want to learn how to create your own hatch pattern despite the examples I provided, you can use a more flexible way with a single simple bricks hatch pattern to hatch different boundaries with the corresponding scale.
*SMALL_BRICKS, 0.1 x 0.05 bricks
0, 0,0, 0,0.05
90, 0,0, 0.05,0.05, 0.05,-0.05
I would have thought that it would be more incentive to learn to code now, because you seem to be altering dimensions daily.
@_gile has provided excellent instructions and a very valuable schematic diagram.
Maybe I shouldn't "do your homework" for you, but it looked like an interesting challenge, what with the asymmetry of the single & double small-brick rows at unequal spacings. This seems to work, in limited testing:
*TEST ; specialty masonry/tile coursing
0, 0,0, 0,1.95
0, 0,.15, 0,1.95
0, 0,.3, 0,1.95
0, 0,.45, 0,1.95
0, 0,.6, 0,1.95
0, 0,.75, 0,1.95
0, 0,.9, 0,1.95
0, 0,1.05, 0,1.95
0, 0,1.2, 0,1.95
0, 0,1.25, 0,1.95
0, 0,1.4, 0,1.95
0, 0,1.55, 0,1.95
0, 0,1.7, 0,1.95
0, 0,1.85, 0,1.95
0, 0,1.9, 0,1.95
90, 0,0, 0,.3, .15,-.15,.15,-.15,.15,-1.2
90, 0,.9, 0,.3, .15,-.2,.15,-.15,.15,-1.15
90, .15,.15, 0,.3, .15,-.15,.15,-.15,.15,-1.2
90, .15,1.05, 0,.3, .15,-.2,.15,-.15,.15,-1.15
90, .05,1.2, 0,.1, .05,-.65, .05,-1.2
90, .1,1.85, 0,.1, .05,-1.9
Make sure the file ends with a blank line, not with the last line of pattern definition, and if you put it in a file on its own, that the file and pattern names match.
I like the way you've handled the vertical lines.
What's going to happen when there's nothing but demand for ready-cooked fish and no fishermen to supply it?
