DWF

[#1]

Hello,

I'm trying to make new importer in SimLab Composer reads DWF file so I need object geomety data .

I could not find any examples on how to extract object geometry data. is there any example helps me ? if not , would it possible to get small code shows how to get DWFModel and object geometry data from DWF File .

regards

Majd

[#2]

You need to look at W3D samples. All 3D data is stored inside .w3d file which is inside .dwf file.

[#3]

thanks for your reply,

now i have get geometry data through BStreamFileToolKit parsing, now I'm trying to read node names for each node , the structure in ObjectDefinitionReader example is clear to traversing around nodes and reading names but i can't see how to match between objects and names in BStreamFileToolKit parsing.

regards,

Majd

[#4]

Thank you for your question.

You use the ObjectDefinitionReader to get the node’s name and node’s id; the node id is used to match the geometry object, which is the tag id (TK_Tag).

Please let us know if you have any further questions.

[#5]

thank you for your reply

can you show me small code example .

[#6]

We don’t have the sample yet; you will need to write the code.

Please let us know if you have any question.

[#7]

Using ReadContentDefinition sample I got all DWFInstance objects. Using DWFInstance::getNodeID() I got ID of each instance. The IDs are: 1, 2, 3, 4 for my sample file. 

When parsing 3D stream using SimpleW3DStreamProcessor sample I get TKE_Tag opcode and handle it using TK_Tag's subclass TkTagHandler. In TkTagHandler::Execute() I increase the counter. 

In my sample file I get like 12 TKE_Tag opcodes. 

I want to get the extended attributes of TK_Shell entities. And can't find a way to match the ID obtained from DWFInstance::getNodeID() with TK_Shell entity. You say I need to use the count of TK_Tag entities, but when do I need to start counting them? Do I need to count them from the start of 3D stream parsing or from the TK_Open_Segment?

[#8]

Silvia is there a way to add more properties using the ObjectDefinition that you commented above?

[#9]

Count the TK_Tag; and the current segment (TK_Open_Segment) which contains the TK_Tag will be map to the DWGInstance by the node id and tag id.

Thanks,

Silvia

[#10]

Yes, we can add more properties to the ObjectDefinition:

1. Read the DWF and the ObjectDefinition (please refer to the toolkit sample ObjectDefinitionReader);
2. Add more properties to the ObjectDefinition;
3. Save the DWF file and the ObjectDefinition.