Autocad lisp dataextraction
- Autocad lisp dataextraction how to#
- Autocad lisp dataextraction full#
- Autocad lisp dataextraction code#
Consider a couple of scenarios: You may want to execute some code when a drawing is closed. If you’re at this advanced level, no doubt you’ve also mastered that skill as well. Is it easy? Not necessarily, but once you have the inspiration and enough skill, it’s not hard to find all the example code you’ll need out on the web. I bypassed their whole process by importing the Microsoft Excel library with VLAX-IMPORT-TYPE-LIBRARY, then reading the data directly from the spreadsheet and into DWGPROPS using a combination of AutoLISP and Visual LISP. Of course, this led to tedious work, and human error. For each project, they would manually copy the data into custom fields within DWGPROPS, which is in turn read by FIELDS – mainly on the cover page. There are around 100 data entries in this file. A client of mine maintains a spreadsheet for each of their projects. Let’s start with importing COM libraries by looking at a real-world example.
Ways an Advanced User Can Automate Even More
Autocad lisp dataextraction how to#
And, they’ve learned how to do so without the interface, by opening and running their code via an ObjectDBX connection. And, since they’re potentially working on hundreds or even thousands of files.
Autocad lisp dataextraction full#
Most advanced users have mastered the art of working on entire folders full of.
You’re also not restricted to operating on a single file. You’re not relegated to using the memory space of the current drawing either, as you’ve begun storing variable data in the registry for use at another time or in another drawing. You’ve probably also explored creating event-driven code by utilizing VLR reactors. You may also use the Visual LISP VL-CATCH-ALL-APPLY method which allows you to intercept errors and continue processing. (defun myErrorFtn (msg) then write your own error function (setq error myErrorFtn) this comes near the top of your defun You should also create your own error handler by setting the internal error function to your own. (if (setq fname (findfile “myFile.txt”)) < make sure the file is there before continuing. I call that inline error trapping or stopping problems before they start. One way is to simply use good programming techniques to start with. Note: Error handling can come in various ways. Your coding style has become concise and consistent, and you routinely employ error handling within it. More than likely, you’ve also moved on from them and into the realm of the object based Visual LISP world. What You Should Know By Nowīy now, you have a firm grasp of most, if not all, core AutoLISP functions. More importantly, you can to do some amazing things with AutoLISP and some advanced skills will take you to a whole other level. For one thing, there are very few real experts out there you’re always learning and advancing your skills. Notice I used the term “advanced”-not “expert.” I make this distinction for a couple of reasons. In this post, we’ll explore what it means to call yourself an advanced programmer. In the first two parts of our series, we’ve looked at the skills you’ll need to be get started using AutoLISP as a beginner and what will elevate you to a higher, intermediate level.