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Chapter 5 – Symbols, Tables, and Fields

Chapter 5 – Symbols, Tables, and Fields. AutoCAD: Secrets Every User Should Know. Blocks. Fundamentals Block definition Not visible Exists in DWG file Block Reference (Insertion) Visible in the drawing, if Layer is on and thawed Block definitions includes entities

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Chapter 5 – Symbols, Tables, and Fields

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  1. Chapter 5 – Symbols, Tables, and Fields AutoCAD: Secrets Every User Should Know

  2. Blocks • Fundamentals • Block definition • Not visible • Exists in DWG file • Block Reference (Insertion) • Visible in the drawing, if • Layer is on and thawed • Block definitions includes entities • Origin layers on and thawed 2

  3. Blocks • Fundamentals • AutoCAD DesignCenter • Move definitions into other drawings • Place definitions on tool palette • A drawing becomes a block definition when inserted • Blocks can be exploded, but... • No longer update • Drawing is larger 3

  4. Blocks • Fundamentals • MINSERT—block can't be exploded • Entities on Layer 0 adapt to host layer • Entities on non-0 layer controlled by their layer of origin • When exploded, entities return to layer of origin 4

  5. Blocks • Fundamentals • Dimensions and hatches are anonymous blocks • Redefine blocks • Block Editor • REFEDIT • BLOCK command • Insert drawing with same name • -INSERT oldblock=c:\path\new.dwg 5

  6. WBLOCK • A SAVE Command, Not a BLOCK Command • No WBLOCK entity • Part of a drawing • Block definition • Selected entities • Entire drawing (thorough PURGE) 6

  7. Check Path • INSERT Undefined Block Name 7

  8. Dynamic Blocks • Actions and Parameters 8

  9. Creating a Dynamic Block 9

  10. Creating a Dynamic Block 10

  11. Creating a Dynamic Block 11

  12. Creating a Dynamic Block 12

  13. Creating a Dynamic Block 13

  14. Creating a Dynamic Block 14

  15. Creating a Dynamic Block 15

  16. Creating a Dynamic Block 16

  17. Creating a Dynamic Block 17

  18. Creating a Dynamic Block 18

  19. Creating a Dynamic Block 19

  20. Creating a Dynamic Block 20

  21. Creating a Dynamic Block 21

  22. Using a Dynamic Block 22

  23. Symbol Libraries • Strategies • Create a separate drawing file for each symbol • Include all symbols in a template file • Group related blocks into separate library drawings • Recommended • Use DesignCenter 23

  24. Symbol Libraries • DesignCenter 24

  25. Symbol Libraries • Missing Icons? BLOCKICON 25

  26. Fields and Attributes • Title Block with Attributes and Fields 26

  27. Block Fields 27

  28. ATTDEF 28

  29. Copy Attributes 29

  30. Block Naming Strategy 30

  31. Edit Attributes 31

  32. Edit Attributes 32

  33. Extracting Attributes 33

  34. Extracting Attributes • Formats • Table • AutoCAD object • Only internal output • CSV • Comma Separated Value • TXT file • MDB • Microsoft Database • Access 34

  35. Extracting Attributes • Formats • XLS • Spreadsheet • Excel • TXT • Space delimited • Can be imported into AutoCAD • Proportional fonts don’t line up • Use TABLES 35

  36. Extracting Attributes From Command Line • Why? • Occasionally EATTEXT causes errors • Can automate process with AutoLISP • -ATTEXT • Requires a Template File • TXT format 36

  37. Extracting Attributes From Command Line • Template file (TXT) 37

  38. Extracting Attributes From Command Line • Template file (TXT) 38

  39. Extracting Attributes From Command Line • Delimited Output • Comma • Space 39

  40. XRef - Attachment 40

  41. XRef - Reference Type 41

  42. XRef - Relative Path 42

  43. XRef - Relative Path 43

  44. XRef Binding • Two Types of Bind • INSERT • As though drawing was attached using INSERT, not XREF • Potential naming conflicts • Bind • Names of layers, dimstyles, etc. prefixed with drawing name • No naming conflicts 44

  45. XRef Binding • Renaming Bound Objects 45

  46. XRef - REFEDIT • Can Edit XRefs by Mistake • XEDIT variable will prevent editing • Set it to 0 in XREF before attaching • XOPEN • Open an attached XREF for editing • Less likely to be a mistake 46

  47. Fields and Tables • Fields 47

  48. Fields and Tables • Tables • Create a style with proper font • Place FIELD by 2X clicking in cell, right-Clicking in MTEXT editor, and selecting FIELD • Each cell designated with letter and number of row and column • Cell can also contain a formula or a reference to a different table 48

  49. Fields and Tables 49

  50. Fields and Tables 50

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