[文章]： hatch某个闭合区域时常常不能一次填满的解决办法

亚尔佛莉德

这个是有解决办法的，
涉及到一个叫MaxHatch的环境变量，
但是autodesk没有公开这个技术资料。可以参考下面这一段，
解决方法涉及一点autolisp的知识，但很容易看懂。真想知道的话，请耐心看完：

Using the MaxHatch system variable to control hatch density
Issue

You cannot create a hatch pattern of more than 10,000 segments using the defaul
t settings in AutoCAD. The default settings are intended to help you avoid dens
e hatch patterns that might otherwise increase the size of the drawing file and
degrade system performance.

However, the default settings might not be suitable for all situations. For exa
mple, the following error message is displayed when you try to hatch an area wi
th a large number of lines:

Spacing too dense or hatch pattern too small

Solution

The value of the MaxHatch variable determines the maximum number of lines in a
hatched area. AutoCAD stores the MaxHatch system variable in the Windows Regist
ry. You can modify MaxHatch using AutoLISP, if the initial value is not suitabl
e.

Note: If you set the MaxHatch variable to a higher value, the performance of Au
toCAD may be degraded.

Type (getenv "MaxHatch") on the command line. The current value for MaxHatch is
displayed on the command line. The default value is 10000.
Type (setenv "MaxHatch" "100000") on the command line. This sets the MaxHatch t
o 100000. The valid range for MaxHatch is 100 to 10000000.
Note: The name of the variable is case-sensitive. Make sure you type an upperca
se M and H.

注意：MaxHatch是大小写敏感的。