Get fill color of a CadEntity in dxf file

Aspose.CAD Product Family
1

I am trying to parse the dxf file using aspose cad for java. My idea is to export all the layers and entities later use a third part library like Batik to convert to svg.
Following is the code to load the dxf file:

final DxfImage dxfImage = (DxfImage)Image.load(inputDxfFilePath);

fetching the layer details

CadLayerTable layer = dxfImage.getLayers().getLayer(lname);

Fetching the entities

List<CadEntityBase> entities = dxfImage.getEntities();

There are methods in CadEntityBase related to styles like getColorId, getgetPlotStyleFlag, …
Do you have a document that relates the CadEntityBase styles to html styles.
Also, how can I get the Fill color of an entity?

2

@brahmajipusuluri,
Hi.
I guess we need a bit more information here to assist.

Do you have a document that relates the CadEntityBase styles to html styles.

Could you please clarify what is html styles?

Also, how can I get the Fill color of an entity?

You can look at getColorId, getColorName, getColorValue, but I guess not all entities could be filled. Could you please share the initial DXF file and point out with screenshots what entity you are talking about?

3

I learnt that in CAD if a lwpolyline has a fill, then it is called a Hatch.

In my case I want to find the link between the Hatch and the lwpolyline.

I am able to find the dxf handle of Hatch in the lwpolyline metadata as a “ACAD_REACTORS”(Soft Handle #0 to persistent Rector). And in the Hatch the link of lwpolyline is found in "Source Entity Handle).

I need to fetch these values using Aspose cad Java methods. Can you please help here.

4

@brahmajipusuluri,
please, share the initial file so we can talk exactly about the same entities.

5

Rectangle-layers_Hatch.zip (22.8 KB)

Please find the attached dxf file for reference.

6

@brahmajipusuluri,
please, try if this example is useful:

final CadImage cadImage = (CadImage)Image.load(inputFile);

for (CadEntityBase cadEntityBase : cadImage.getEntities())
{
	if (cadEntityBase.getTypeName() == CadEntityTypeName.HATCH)
	{
		CadHatch hatch = (CadHatch)cadEntityBase;

		for (CadHatchBoundaryPathContainer boundaryPath: hatch.getBoundaryPaths())
		{
			System.out.println(String.join(", ",boundaryPath.getSourceBoundaryObjects()));
		}
	}

	if (cadEntityBase.getTypeName() == CadEntityTypeName.LWPOLYLINE)
	{
		CadApplicationCodesContainer container = cadEntityBase.getApplicationCodesContainer();

		if (container.getCodes().containsKey(""))
		{
			CadApplicationCodes codes = container.getCodes("", "ACAD_REACTORS");
			for (CadCodeValue ccv: codes.getCodesList())
			{
				System.out.println(ccv.getCode() + " " + ccv.getValue());
			}
		}
	}
}
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