dxfjsObjects
Objects are the nongraphical objects in the dxf.
Supported objects are:
DICTIONARY
Objects section have a root dictionary, you can get a reference to it like this:
import { DxfWriter } from "@tarikjabiri/dxf";
const dxf = new DxfWriter();
const root = dxf.objects.rootThe root dictionary is the first object appearing in the section, it can own objects appearing after, also can have multiple entries.
import { DxfWriter } from "@tarikjabiri/dxf";
const dxf = new DxfWriter();
dxf.objects.addEntryToRoot("ACAD_IMAGE_DICT", "1A");To add a dictionary use the convenient function addDictionary():
import { DxfWriter } from "@tarikjabiri/dxf";
const dxf = new DxfWriter();
const dic = dxf.objects.addDictionary();
// Add an entry to it
dic.addEntry("example", "1B");IMAGEDEF
This object can store a reference to an external image file, which can be placed by the IMAGE entity.
import { DxfWriter, ImageDefResolutionUnits } from "@tarikjabiri/dxf";
const dxf = new DxfWriter();
const imgDef = dxf.addImageDef("path/to/image");
// You can customize it with these properties:
imgDef.acadImageDictHandle = ""; // Soft-pointer ID/handle to the ACAD_IMAGE_DICT dictionary.
imgDef.addImageDefReactorHandle("handle"); // Soft-pointer ID/handle to IMAGEDEF_REACTOR object (multiple entries; one for each instance).
imgDef.width = 1; // Image width in pixels.
imgDef.height = 1; // Image height in pixels.
imgDef.widthPixelSize = 1; // Default width of one pixel in AutoCAD units.
imgDef.heightPixelSize = 1; // Default height of one pixel in AutoCAD units.
imgDef.loaded = true; // Image is loaded.
imgDef.resolutionUnits = ImageDefResolutionUnits.NoUnits; // Resolution units.The possible values of ImageDefResolutionUnits:
ImageDefResolutionUnits.NoUnits= 0;ImageDefResolutionUnits.Centimeters= 2;ImageDefResolutionUnits.Inch= 5;
TIP
For this to work properly in AutoCAD you need to add a DICTIONARY object with an entry to image name and the ID/Handle to IMAGEDEF object you added. Also when you place a IMAGE entity add a IMAGEDEF_REACTOR object.
But if you use the
addImage()function all of this will be added automatically. No need to do it manually.
IMAGEDEF_REACTOR
import { DxfWriter } from "@tarikjabiri/dxf";
const dxf = new DxfWriter();
const imgDefReactor = dxf.addImageDefReactor("2F"); // Object ID for associated image entity.