More than 60 Autolisp routines for AutoCAD

The selected shadings must be in a layer that describes the type of area to obtain, by default the lisp will read two layer names, which are the following: “ShadingCut"And"ShadowFill".

The lisp sums all the areas of the shaders that are in the layer "ShadingCut” and all areas of the layer shadings “ShadowFill” and once the selection of the hatches is finished, the attributes of the block of areas are updated, for this the progressive attribute of the block must first be selected, this is an invisible attribute, but the lisp just before the selection shows it and then hides it again, this is done using the command “Attdisp“, then the attributes of the cut and fill areas will be selected and these will be updated by the values ​​of the areas found.

The selection of the objects is done by means of a window that includes all the punctures including the text of the progressive of the section.

To use this routine you must do the following:

1. Load the lisp file in AutoCAD.
2. Enter the name of the command: AXIS.
3. Select by means of a window all the punctures of cut and fill of the section, including the text of the progressive one of the same one.
4. Select one by one the attributes of the block to modify, starting with the attribute of progressive.
5. The command will end automatically after the cut and fill attributes have been selected.

A sample CAD file is included with the lisp for a better understanding of the command.

Provides great help when we want Control our earrings, To obtain the slope, simply select the line or polyline, the result can be displayed on the screen (command line) or by selecting a text (the value of this text will change by the value of the slope found).

It is worth emphasizing that in the case of a polyline, this command finds the slope of only the first segment.

To use this routine, you must do the following:

1. Load the lisp file in AutoCAD.
2. Enter the name of the command: Pnd
3. Select the line or polyline to get the slope.
4. If it is desired you can select a text to replace its value for the slope found, otherwise, only press Enter to get the results on screen.

You can get the routine here

You can select lines and polylines all together through a window or otherwise one by one.

The default decimal number of the sum of the lengths found is 2, but another value can be entered.

To use this routine you must do the following:

1. Load the lisp file in AutoCAD.
2. Enter the name of the command: Lpl
3. Enter the number of decimals for the result of the sum of the lengths
4. Select the lines or polylines to add their lengths
5. Press the key Enter to end the selection
6. Select a text to replace its value with the one of the sum obtained or press Enter Again to display the result on the command line

You can get the routine here

To use this routine you must do the following:

Load the lisp file in AutoCAD.
Enter the name of the command: lc
The result will be a list in the command line of all the layers of the current drawing.

This routine Generates a table with the number of rows and columns specified, is similar to the AutoCAD table command, but lighter to use, although it does not link data with Excel you have the option to fill the table with a predefined value which by default is “0.00” and is placed in each cell to be edited later.

This command also allows you to generate the table using two options, The first option allows defining the table Through a fixed height and width of the cells And the other option adjust these values ​​so that the specified number of rows and columns Enter the designation of a window.

Additional options include the following:

• Default text: You can tell the command to insert a default value (“0.00”) in each generated cell, this value can be customized and can be changed to any other.
• Text height: It is the height that the inserted text will have, the default height has a value of “0.25”.
• Justification: Of the inserted text, so there are two options: Fit (Fit in cell) and Middle (Half of the cell).
• Color: It is the color that will have inserted texts, by default the initial color is the current color defined.

To use this routine you must do the following:

1. Load the lisp file in AutoCAD.
2. Enter the name of the command: Panel
3. According to the Generation Mode selected, a point is indicated or two points are indicated to generate a window

You must have special Care in case the objects are texts, Since the point of insertion that is taken into account at the time of exporting the coordinates, Depends on the justification that these texts have, If you are sure that the justification of the texts is correct there is no problem in exporting the points.

It is advisable to select objects That have a single insertion point, such as Blocks or points of AutoCAD, That way it is safer that the exported coordinates are the ones that correspond.

As we mentioned earlier, this routine exports coordinates from points, texts (or also Mtext) and blocks, but You can supplement the source code to take into account other entities Such as: circles, initial points of lines, among other objects that in its database have the code 10.

The exported coordinates have the format P, N, E, C (Point, North = Y, East = X, Cota = Z) And as it is exported to a CSV file (separated by commas), when opening the file each value will occupy its separate cell.

To use the routine you must do the following:

1. Load the lisp file in AutoCAD.
2. Enter the name of the command: EPC
3. Select the objects from which the coordinates will be exported (note that you will select points, texts and blocks (if you find them).
4. Indicates the location and name of the CSV file in which the exported coordinates will be generated.

You can get the routine here

The coordinates exported correspond to the Starting and ending point of the lines, So in case the lines are joined by the same point, the lisp will read 2 times the same coordinate.

In this case, if desired You should consider the option to sort the coordinates And delete duplicate ones, the exported coordinates have the Format P, N, E, C (Point, North = Y, East = X, Dimension = Z) And how it is exported to a CSV file (Separated by commas), when opening the file each value will occupy its cell independent and in an orderly way.

To use the routine you must do the following:

1. Load the lisp file in AutoCAD.
2. Enter the name of the command: EL3
3. Selects the lines from which the starting and ending point coordinates will be exported.
4. Indicates the location and name of the CSV file in which the exported coordinates will be generated.

You can get the routine here

To import the points, it is considered necessary that the point file to be imported has XLS extension (from versions prior to office 2007) or XLSX (version 2007 or later) And in the file the coordinates are formatted with the format: P, N, E, C, D, (Ptogether, NOrte, Este Cota DDescription), as shown in the following image:

It allows you to choose among 3 different types of ways to insert a point object in the read coordinate.

• The first is to choose to insert a AutoCAD Point entity (which is generated by the POINT command), remember that the display of a point in AutoCAD depends on the type of point display that you have defined with the DDPTYPE command.
• The second option consists of select a block stored in the drawing as a point to be inserted in the read coordinate, by default the routine creates a new block called “cg-point”, which can be used if there are blocks in the drawing or if there are no blocks in the drawing.
• The third option related to the style of point, Allows you to import a block from the hard disk, Remember that in this case the dimensions with which the block was created influence the visualization of the block at the time of insertion.
• With regard to point data (labels), iCe Lets you decide what you want to show, if you only want to display a Point, you will only have to select this option, the same for the text of the Dimension or the Description of the point. You can choose to display the 3 tag data or not display any.

Also You can control the number of decimal places in the inserted dimension text, The scale that will have the label, the rotation of the same whose base point is the location of the imported point and the separation of the label with respect to the point, these options can be stored with a name, so that you can call them according to the points that you will import.

All these options will allow you to import your points from an Excel file quickly and with a clear appearance, it is worth clarifying that the way the texts of the label of the point are seen does not depend on the routine, But the current text style of your drawing and the current layer.

Some time ago I published a routine developed by a user, which allowed to import the coordinates but from a text file but with many limitations, this time through this new command we will have more options to control the insertion of coordinate points.

The attached file also provides an example block that you can import, apart from a spreadsheet with the correct format that the command needs to import the coordinates without any inconvenience.

To use the routine you must do the following:

1. Load the lisp file in AutoCAD.
2. Enter the name of the command: ICE
3. In the dialog box, specify the options that you think are convenient for importing points.

You can get the routine here

This command reads the progression located in the first column of the csv file and searches for the text with that same progressive in the drawing file, inserting its corresponding cut and fill area in the upper right of the cross section.

The suffixes inserted in the cut and fill area by default are: “AC=” and “AR=”, which can be manipulated by code, as well as the number of decimals and the height of the inserted text.

To use this routine you must do the following:

1. Load the lisp file in AutoCAD.
2. It establishes as current the layer that will contain the texts that will be inserted, for example: “Text-Areas”.
3. Enter the name of the command: Arimx
4. Select the SCV file that contains the areas to import
5. Select the You want to insert Its corresponding area from the csv file, if you want to select all just press the key Enter.

This routine does not require the input of any option, simply call the command and immediately will be displayed in the AutoCAD command line, the list with the paths of the inserted images.

To use the routine you must do the following:

1. Load the lisp file in AutoCAD.
2. Enter the name of the command: lime

You can get the routine here

This is a good help when updating the letterhead of the plans with this information.
In the path obtained also includes the name of the current tab, if it is in the model space, it will show at the end of the path: model, otherwise it will show on behalf of the current tab.

To use this routine you must do the following:

1. Load the lisp file in AutoCAD.
2. Enter the name of the command: rue
3. Select the text to replace with the value of the path of the current drawing, if you do not want to replace some text just press Enter To display the path on the command line.

You can get the routine here

The 8 command provides different types of formats for this date, ranging from a simple date type to a long format date type, where the name of the day of the current date is programmatically obtained with AutoLisp.

You can select type entities text y Mtext, These will be replaced automatically by the current date with the format selected, the available date formats are those shown in the illustration, each one is identified by its number, which will serve to choose the format when requested on the command line Of AutoCAD.

To use this routine, you must do the following:

1. Load the lisp file in AutoCAD.
2. Enter the name of the command: RF
3. Indicate by 1 number to 8, the date output format, you can enter the question mark (?), To view available date formats
4. Select the texts you want to replace with the date with the selected format
5. Press the key Enter To end the command and update the selected texts

You can get the routine here

In addition to each text it adds a prefix or a suffix, for example if a prefix is ​​indicated for the dimension (Y coordinate) equal to “CT=”, when the elevation text is selected, the command will update the selected text by the value of the elevation obtained, plus the indicated prefix, for example “CT=236.42”, when the progressive text is selected, it will be updated with the value of the X coordinate obtained plus the suffix "0+", for example “0+10.0”.

This command comes with the prefixes for the progressive and already defined dimensions ("0 +" and "CT =") And can only be changed by modifying the source code, in addition this command can be modified if desired, so that a prefix and a suffix are added at the same time in the texts.

To use this routine, you must do the following:

1. Load the lisp file in AutoCAD.
2. Enter the name of the command: PC
3. Indicates the point from which the values ​​of the progressive (X coordinate) and the coordinate (Y coordinate)
4. Select the progressive text
5. Select the dimension text

The values ​​of the texts will be updated with the data obtained

The Ax command has the following options:

Initial requests:
Specify an internal point of the area or [Select object / Options] :

Here you must indicate the internal points from which the area will be obtained, the other options are described below:

Select object: Instead of specifying internal points to find airs, you can select closed polygons to find your area.

Options: This option loads the Command Options dialog box, the dialog box is as follows:

Each option is described below:

Number of decimals: The number of decimal places the area will have (2 by default).
Height of text to insert: If you decide to insert a text with the area obtained, here is set the height that will have said text.

Conversions of areas: This option allows you to perform operations with the values ​​of the areas found, each area is added, subtracted, multiplied or divided by a factor that must be specified in the lower part of this option.
The command shows if the conversion is active and which of the operations is carried out and with what value the conversion will be carried out.

This option allows you to customize the areas when the drawing is in different scales or in other drawing units.

Apply shading: This option allows each indicated area to be shaded to have a better view of the area that is being found, thus allowing to verify if it is correct (Enabled by default).
Name of the shading: Here you must indicate the name of the shading to be applied in the indicated areas (Solid default).

(Shading) Scale: Here the scale factor of the shading is indicated, this factor is variable according to the type of shading selected.

Color (shading): The color that the shading will have applied in the indicated areas.

Finishing the shading: The options below apply once the command application is terminated.

Hold contours: If enabled the generated contours are not deleted.

Hold shading: If enabled the generated shadings are not deleted.

Final Requests:
Specify an internal point of the area or [Select object / Insert area text / Options] :

Insert text area: This option allows you to insert a text with the obtained area instead of selecting one to replace it. The text with the area found has the default prefix: ” Area =”, this prefix can be modified in the program code.

Change text: This option is activated when the Enter key is pressed or the right mouse button is pressed, which will request a text to be selected, for example if there is a text with the following content: “AC=0.00m2” and through the command an area of ​​3.25 has been found, then the command will replace the text, updating it to “AC=3.25m2”. As you can see, AX replaces only the numeric values ​​of the text to be replaced, so you can have area texts with different prefixes, for example: “AR=0.00m2”, “AM=0.00m2”, “Cutting area =0.00m2”, “My area=0.00m2”, etc.

Valid and invalid outlines:

Valid outline

To use this routine you must do the following:

1. Load the lisp file in AutoCAD.
2. Enter the name of the command: AX
3. Indicate an internal point in the area you want to find (you have to make sure that the area to be found must be completely closed, otherwise the command will display an error message).
4. Indicate internal points as many times as you need, the command will rage, accumulating (summing) all the airs found.
5. Press Enter or right-click to end the command and set the area in an existing text.

You can get the routine here

As in the previous routine, the selection of entities is not made visible, but it exists as a set of selected entities, so the selection mode must be indicated “Previous” to select the objects.

To use this routine you must do the following:

1. Load the lisp file in AutoCAD.
2. Enter the name of the command: ssl
3. Select the object you want to get the layer name to select the other entities
4. Make effective the selection of entities by means of the predictive mode

You can get the routine here

When it comes to removing objects outside the polyline, special care should be taken as This command deletes all objects outside the polyline.

The polyline to select Must be a closed polyline, otherwise the routine joins the last point of the segment with the first, Closing thus by means of an imaginary line the polyline and eliminating everything that is inside or outside that line.

The option cut as it is logical, only works with objects that can be cut manually, As for example, lines, circles, arcs, etc, blocks and other compound objects do not fit inside these objects that can be cut out.

With the lisp a sample file is attached So that the corresponding tests are done before using the command in final files.

To use the routine you must do the following:

1. Load the lisp file in AutoCAD.
2. Enter the name of the command: PolErase
3. Select polyline Which will serve as an edge to delimit the objects to eliminate.
4. Choose one delete objects option, you can choose the option: Window (it only deletes objects that are totally outside or inside that window), Capture (Removes objects that are even intersected by the edge of the polyline), delete and crop (As the name implies, it will erase objects that are inside or outside the polyline and trim objects that intersect the edge.
5. Indicates a point on which side (internal / external) will erase or trim objects.

You can get the routine here

This routine is not case sensitive at the time of entering the name of the layer, so you can enter in any way, just that it is well written.

To use this routine you must do the following:

1. Load the lisp file in AutoCAD.
2. Enter the name of the command: sca
3. Enter the layer name of the objects you want to select
4. Effect the selection of entities by means of the mode Previuos

You can get the routine here

1. Load the lisp file in AutoCAD, using the comado Appload Or simply by copying the file and pasting it into AutoCAD.
2. Enter the name of the command: RT
3. Select the text, from which you want to get the value.
4. Select the text, which you want to replace with the previously obtained value.

As you can see, the routine is simple, but it is very helpful when it comes to text editing.

It should be noted that the language used in this routine is clearly AutoLisp, in a new entry we will publish the same command but written in VisualLisp, in which we will observe that the size of the structure is further reduced.

This new property can only be accessed by this command, since it is not listed by the Properties dialog box.

The lisp allows you to change the number of decimals or obtain the original number of a text formatted earlier with this routine, So you know how many decimals you had originally If you want to reset the original values.

It is noteworthy that these original values ​​remain Even though the file or AutoCAD has been closed, so you have the security that the original data of Your values ​​will always be there, even in spite of restoring the original values ​​to the texts.

This new command could be compared to the action of To change Excel decimals, But the only observation is that this property is internal and as we said earlier The Properties window is not ready to display extended date entities.

Particular consideration must be given to The selected texts are numerical texts, that is, they only contain numbers, since otherwise their value will be converted to “0.00".

To use the routine you must do the following:

1. Load the lisp file in AutoCAD.
2. Enter the name of the command: AREDE
3. Choose one of the options you want to perform
4. Select the (numeric) texts in which you want to perform the operation

You can get the routine here

The program allows you to align the texts vertically (columns) or horizontally (rows), for this you only have to select the first, which will serve as a basis for aligning the other texts.
It should be noted that the point taken as the basis for aligning the texts is the insertion point, if all the texts have the “Left” justification as the insertion point, all of them will be aligned with respect to this point and it will be a uniform alignment. If the texts have different justification, they will all be aligned with respect to their insertion point, which will cause the alignment of the texts to be inconsistent.

To use this routine you must do the following:

1. Load the lisp file in AutoCAD.
2. Enter the name of the command: lit
3. Select the base text from which the alignment axis will be obtained

4. Select the texts to align

5. Done, the texts were aligned based on the first selected

You can get the routine here

That is, if we want to update an attribute of any block, for an existing text, simply select the text first and then the attribute and it will be updated according to the value of the selected text.

To use this routine you must do the following:

1. Load the lisp file in AutoCAD.
2. Enter the name of the command: cta
3. Selects the text that contains the value to be copied.

4. and finally select the attribute to change the measure

5. The result is shown below:

As we can see, this command is very useful if we want to update a value of an attribute from a particular text.

For example if you have two texts, one with height 0.5 and the other with a height of 1.00 and entering a percentage of 1.5, the heights of the texts will change by the following: 0.75 and 1.5 respectively.

This routine is very useful when it is required to make changes in the heights of many texts with different heights.

To use this routine you must do the following:

1. Load the lisp file in AutoCAD.
2. Enter the name of the command: ch
3. Enter the percentage that will change the height of the texts, for example: if you enter 0.5, all texts will be reduced by half, and if you enter 2, all texts will grow double
4. Select the texts you want to modify

You can get the routine here

The dimensions to be inserted are blocks with attributes, these blocks are created in a drawing in millimeters. So that you can use this lisp without problems, you must use the command “UNITS” (Units) define the units of the content to insert in “millimeters” (millimeters).

It is worth making clear that for this routine to insert the correct elevation to the contour lines, they must have an elevation (coordinate z> 0), since the elevation is obtained from the point indicated on a contour If the contour lines have elevation 0 (coordinate z = 0), that is, they do not have elevation, the routine will insert a text with that value.

The scale requested by the routine refers to the scale on which the drawing will be plotted, it is a referential value of the text size of the dimension to be inserted, you can try incrementing or decreasing this value until the dimension is inserted with the size of text you want.

This routine has 2 attachments: EL_TAG.dwg y EL_TAG2.dwg, it is the blocks with attributes explained above, these files can be copied anywhere, although it is recommended that they be in the same folder as the routine.

In order for AutoCAD to load these files, you must define the path of the AutoCAD location in the dialog box Options-> Support Files Search Path.

To use this routine you must do the following:

1. Load the lisp file in AutoCAD.
2. Enter the name of the command: CPE
3. Indicates a point above the line of the level curve and in the place you want the dimension to be inserted
4. Indicates another point to define the rotation that will have the dimension to insert
5. You can continue inserting more dimensions indicated your insertion point, if you do not want to insert more dimensions, press the Enter key to finish the command

You can get the routine here