autocad blocks

Because in the project you need to extract the attributes from the title box in the AutoCAD DWG file into the database to realize the bulk of the drawings. At the beginning of the online search for this information, some of the controls can be separated from the AutoCAD system extraction, but are charged. For example, OPENDWG is used more. But to pay for membership can be used. So I want to analyze DWG's f

Common code blocks in Java, building blocks of code, static code block differences, and code examples from: http://www.cnblogs.com/sophine/p/3531282.htmlExecution order: (Priority from high to low.) Static code block >mian method > construct code block > Construct method.Where static code blocks are executed only once. The construction code block executes every t

Introduction: indexing hot blocks are actually very different from the hot blocks of data blocks. They are also caused by a large number of sessions accessing the same index block. Our solutions include reverse indexing, partition indexes. Let's talk about any one Introduction: indexing hot blocks are actually very dif

Summary: static code blocks are always executed first. A non-static block of code, like a non-static method, is related to an object. Only non-static blocks of code are executed before the constructor. A non-static block of code and a constructor for a subclass are only started when the parent class is non-static and the constructor finishes executing (equivalent to the initialization of the parent class ob

Execution order: (Priority from high to low.) Static code block >mian method > construct code block > Construct method.Where static code blocks are executed only once. The construction code block executes every time the object is created.1, ordinary code block1//Common code block: {} that appears in a method or statement is called a normal code block. Ordinary blocks of code and general execution order of s

When you go to the interview, you often encounter such questions: give you two classes of code, they are inherited relationships, each class only the constructor method and some variables, the constructor may have a piece of code on the value of the variable to do some of the operation, there are some of the variable value output to the console of the Code, Then let's judge the result of the output. This is actually a look at our understanding of the initialization order of classes in the case o

) Dimarcsym Control the display of Arc symbol in arc length dimension Dimasz Control the size line, leader arrow sizes Dimatfit Controls the size of dimension lines, leader arrows. and control the size of the hook line Dimaunit Set the unit format for angular dimensions Dimazin 0 Processing of angle callouts Dimblk Set the arrow blocks