Hatching

[ESchomberg]

Hey guys I know I have asked this before but...... I have been drawing and hatching mortgage surveys for a while with no problem. All a sudden last night the concrete Hatch kept telling me no closed boundary... If I tried to Hatch by picking objects it still sprayed my dots outside my linework. I even tried Dave's idea changing gap tolerance to 1 then 5 then 10... Still got the same error. I redrew everything and had the same problem.

I zoomed in and did not see any gaps in my lines. These are regular lines. I did use Laydel to get rid of the standard CAD layers I don't know if that could have anything to do with it?

[Jeff_M]

Eric, can you post the drawing?

[ESchomberg]

Yes tonight... I will have to redraw

[ESchomberg]

OMG THIS IS soooo crazy....no matter what I do I can not get this to hatch. I am not doing anything different thatn what I have done before. I have to finish this drawing tonight can someone please help????

[ESchomberg]

OMG THIS IS soooo crazy....no matter what I do I can not get this to hatch. I am not doing anything different thatn what I have done before. I have to finish this drawing tonight can someone please help????

[Pointdump]

Erik,

OK, drawing is open. What do you want to hatch?

Dave

[ESchomberg]

The concrete driveway and walks.. But it keeps telling me there is no closed boundary which is bs.

[ESchomberg]

DO YOU SEE WHAT I MEAN DAVE????.... I am working on another drawing using the template before I used LAYDEL to get rid of civil3d layers, and it is hatching fine......So I am left wondering that it must have something to do with deleting the standard layers.....

[Pointdump]

Erik,

As you got, no closed boundary. Hatches can be a pain like that. So here I used "Select Objects" and picked the left and right side of the driveway.

Did you know that using Select Objects you can Hatch between two parallel lines with no closed ends? True fact.

OK, so for your drawing I'd make a special outline of the drive and walk areas, just for hatching.

Dave

[Pointdump]

Erik,

Attached, Drive and Walkway are hatched.

Dave

[Pointdump]

Erik,

"...wondering that it must have something to do with deleting the standard layers....."

Doubtful. But there's definitely something funky with the hatching in that particular drawing.

Dave

[Jay_B · Accepted solution]

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@Pointdump wrote:

Erik,

"...wondering that it must have something to do with deleting the standard layers....."

Doubtful. But there's definitely something funky with the hatching in that particular drawing.

Dave

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Hi Dave,

When all linework is isolated & selected with the Properties Palette open, differing Start Z / End Z Coordinates of the linework are revealed.

Once all linework is changed to a consistent Z Elevation, you can hatch any of the areas as expected.

[Pointdump]

Jay,

Right you are. Even setting HPGAPTOL to 200 doesn't work in this instance. If all the lines to be used as a hatch boundary are selected and set to zero elevation, then hatching works as expected.

Erik may not want to change the elevations of his linework, so I think the best fix is to trace the concrete areas with a new polyline and use that as a hatch boundary.

Dave

[rl_jackson]

And the Z value is the bain of hatch patterrns.......

@ESchomberg, for future reference, if you set OSNAPZ = 0 you'll have a lot less problems with hatching. Personally I think this should work regardless of the Z value of a line but unfortuately it does not at this time.

[ESchomberg]

You guys are the best. Many thanks. I am not using polylines just regular ones, but even though it is not a surface drawing the guys in the field assume 100' elevations. So when I create a manual cogo point along a line it assigns 0 elevation to that point, creating a conflict. I just selected all concrete lines and any lines butting up to my concrete, selected properties....set all Z elevations to 0 and it hatched beautifully. Thanks again.