Contents

Front Page

Programming style

What are the choices for programming AutoCAD?

What to do with LISP files from the Internet

The History of Entity References

Examples

Links

Just learning...

Advertising

Buy the new AutoCAD 2009

Examples

2Dto3D.LSP - Visual LISP Examples for 2D to 3D conversions

  • 2Dto3D - Utility to change entity Z value
  • C:Carpet - Reduce all Z values to zero
  • C:2Dto3DByHand - Manual selection of entities to change
  • C:2Dto3DbyProx - Z update by proximity to Z elevation tag
  • getTheStartPoint - Utilily to get object start point

    • AREAGAMES.LSP - Visual LISP Examples for area calculations with block data

  • C:EXAMPLE1 - Calculate area based on border-object in block
  • GetBlockArea - Get the area utility function
  • GetBorderObject - Search block definition for border object
  • C:EXAMPLE2 - Calculate area based on attribute values
  • get_ATTS - Return a list of tags and attribute values
  • put_ATTS - Write a list of tags and attributes to a block insert

    • ATTRIBS.LSP - Visual LISP Example application for attribute manipulations

  • C:ATTOUT - extract attributes and block info
  • C:ATTINP - import attributes and block info
  • ATT:REPLACE - replace attributes in a block insert
  • ATT:GETS - get attributes attached to a block insert

    • BLOCKATTRIBS.LSP - Visual LISP Example utility to update redefined blocks with attributes

  • C:BLOCKATTRIBS - Command function to update blocks after redefining
  • ATT:REPLACE - replace attributes in a block insert
  • ATT:GETS - get attributes attached to a block insert

    • BLOCKFUN.LSP - Visual LISP Function set to append objects to a block

  • AppendBlock - append entity to existing block definition
  • RemoveBlock - remove entity name from block defintion
  • Get_Block_Ref_Obj - return object reference given block name

    • CHANGES.LSP - Visual LISP Example to change layers and Z values.

  • Layer_Update - change layers given selection set and nested list of layer names.
  • Z_Update - change Z elevations of a selection set.
  • Ent_Z_Update -change Z elevation for a single entity.
  • C:TEST1 - Layer conversion demonstration.
  • C:TEST2 - Z conversion demonstration.

    • CTEXT.LSP - Visual LISP Example to change text and mark revision.

  • C:CTEXT - command function to mark change text

    • DATES.LSP - Visual LISP Utility set for converting various date formats.

  • AcadCalendar - Given Julian date from AutoCAD DATE variable, returns string MM/DD/YYYY.
  • AcadJulianDate - Determines base value (Midnight) for AutoCAD DATE variable given the month, day, and year.
  • AstroCalendar - Given astronomical Julian date, returns string with MM/DD/YYYY format.
  • AstroJulianDate - Given month, day, year returns Julian date as determined by the Naval Astronomical Observatory.
  • DayOfWeek - Given month, day, year returns string with the day of the week.
  • DayOfYear - Given month, day, year return integer number for day of the year.
  • isLeapYear - Given year returns T if leap year, nil otherwise.

    • DBREAK.LSP - Visual LISP Routine to break dimension lines (regenerating dimensions will erase breaks!)

  • C:DBREAK - Break dimension lines command function.

    • DETAIL.LSP - Visual LISP Routine to create detail enlargements in model space

  • C:DETAIL - Detail enlargement command function.

    • DIRSEARCH.LSP - Visual LISP Utility function for directory searching.

  • DirSearch - Directory search utility function.
  • SearchThese - Recursive directory search utility function.

    • DRAWCHART.LSP - Visual LISP Example Function to draw a text chart or table from a list of data

  • DrawChart - Utility function for chart processing.
  • DetermineColHeight - Figure out which column is tallest.
  • DetermineRows - Figure out where rows start in Y.
  • Draw_The_Cells - Draw the linear grid for the chart.
  • Add_A_Line - Utility to draw a line object.
  • Add_A_Text - Utility to insert text.
  • Col_Total_Size - Find X width and Y height of a column.
  • Get_Column - Get column data as nested list.
  • Cell_Size - Determine cell size from data.
  • Verify_data_List - Verifies format of input data list.

    • HARRYDIALOG1.LSP - Visual LISP and DCL example of Dialog box control

  • C:HD1 - Hot Tip Harry's Dialog example command function.
  • varies - Example call back functions for dialog box control.
  • nth-replace - Replace Nth value in a list utility function.
  • nth-remove - Remove Nth value in a list utility function.

    • INOUT.LSP - Visual LISP Utility to determine if point is inside or outside of boundary.

  • InOut - Utility to determine if a point is inside or outside geometry.
  • Line_Arc - Compute intersection of line and arc.
  • Line_Arc_Loop - Looping work horse for Line_Arc.
  • Find_Lim - Apply tool for point list testing.
  • C:TestIt - Basic test example.

    • LastPlot.LSP - Visual LISP Example to display last records from plot log file.

  • GetLayoutObject - get current layout object reference.
  • GetPlotConfigs - get active document plot configurations reference.
  • GetPrefObj - get preferences object reference.
  • GetPrefOutput - get preferences output object reference.
  • GetPrefFiles - get preferences files object reference.
  • GetPlotLogName - retrieve plot log file name from preferences.
  • ParseCSV - parse input line in comma format to list.
  • C:LastPlot - command function to display data from plot log file.

    • LAYERSWAP.LSP - Visual LISP functions that manipulate and swap layer names.

  • LayerSwap - utility that does the layer name change work.
  • C:TEST - example that calls LayerSwap for all open documents.
  • C:DEMOLAYER - utility to modify layer name prefix/suffix for selected entities

    LENGTHS.LSP - Visual LISP Example functions using entity object lengths.

  • getTheLength - return length value for an entity
  • sumLengths - sum the length values found in a selection set.
  • findTheLongest - returns ename of longest object in selection set.
  • findTheShortest - returns ename of shortest object in selection set.
  • findLengthTest - generic length test utility given selection set.

    • LINESLOPE.LSP - Visual LISP Example command to annotate sloped line.

  • C:LineSlope - command function to place percentage slope dimension.
  • DrawArrow - draw a solid arrow utility.

    • LWPLINES.LSP - Visual LISP Utilities for manipulating lightweight polylines

  • LWPOLY_SHOW - Given Entity list, prints points in polyline.
  • LWPOLY_NTH - returns point, bulge, and widths of segment N.
  • LWPOLY_CHANGE - change nth point, bulge and widths.
  • LWPOLY_2_POLY - convert a lightweight poly to a traditional poly.

    • MATH.LSP - Visual LISP Utility function set for math operations.

  • RTD - radians to degrees.
  • DTR - degrees to radians.
  • TAN - compute tangent.
  • ARCCOS - compute arccosine.
  • ARCSIN - compute arcsine.
  • SEC - compute secant.
  • COSEC - compute cosecant.
  • COTAN - compute cotangent.
  • VectMag - compute vector magnitude.
  • UnitVect - compute unit vector.
  • VectAdd - add two vectors.
  • VectAngle - vector angle.
  • ApplyCoeff - apply a coefficient f(x)=L0+L1*X+L2*X^2...

    • MATRIX1.LSP - Visual LISP function set to perform matrix math, block point conversion

  • MatrixOrder - Determine size of rectangular matrix.
  • AddMatrix - Add matrices of like size.
  • MultMatrix - Multiply matrices.
  • MatrixFlip - Row-based to/from Column-based.
  • BuildBlockMatrix - Construct transformation matrix for block insert.
  • BlockPnt->WCS - Convert point from block definition to insert location.

    • NLENGTHEN.LSP - Visual LISP function for modified delta lengthen command.

  • C:NLENGTHEN - Command function for new lengthen command.
  • *ERROR* - embedded defun in command function.

    • PFUNC.LSP - Visual LISP function to plot a function Y=f(X) with f(X) as a form.

  • C:PFUNC - Command function to execute plot.

    • PLCHOP.LSP - Visual LISP Example to chop a section out of a polyline.

  • C:PLCHOP - Command function to chop vertices from a pline.
  • GetVertexPoints - User input of two vertices from same pline.

    • REACTOR.LSP - Visual LISP Example application for entity reactors.

  • C:CONNECT - Connect two circles with a line.
  • Connection - Draw a line between two circles.
  • ConnectFix - Reactor function when a circle changed.

    • WierdSorting.LSP - Visual LISP Examples for demonstrating the sort utilities.

  • C:ENTITIES - Example to sorted list of entity counts.
  • C:ESORT - Example that sorts entity points by X then Y.
  • SortWierdFormat - Example to sort sheet set reference numbers.
  • C:SORTREFS - Example command function for SortWierdFormat utility.
  • QuickArrow - GRDRAW example to draw line with arrow head.
  • ParseNumbs - Parse string into list of numbers.

    • XDATA.LSP - Visual LISP Example application for extended data manipulation.

  • X_DATA_GET - get extended data list from entity.
  • X_DATA_ADD - add extended data to entity.
  • X_DATA_DEL - remove extended data from entity.
  • X_DATA_APPIDS - build list of registered applications.
  • NTH_SUBST - substitute nth member in list.
  • C:EST - estimation example application shows use of extended data to house bill of material info about objects.

    • XLSEEK.LSP - Visual LISP Example to search an Excel Spreadsheet.

  • Excel_Record - Search for a match in column A of work sheet.
  • Close_Excel_Links - Close object linkage to work sheet.
  • ColLetter - Given a number returns letter as per Excel columns.

    • XLSEX1.LSP - Visual LISP Example to write a list to an Excel Spreadsheet.

  • List_2_Excel - Write a list of data to a spread sheet.
  • ColLetter - Convert column number to Excel style letter label.

    • XLSOBJ.LSP - Visual LISP Example to link to Excel Spreadsheet, update variable reference.

  • Link_2_Excel - Set up link to Excel worksheet objects.
  • Update_Variable - Sends new value to variable named in spreadsheet.
  • Close_XL - Close link to Excel worksheet object.

    • Keep on programmin' - Bill Kramer