Christopher Posted April 3, 2012 Share Posted April 3, 2012 Hi! I'm writing an reader/writer for another software, for the new json based bgeo (and geo) format. Right know i'm working in the reader and i'm using the UT_JSONParser class together with the UT_JSONHandle class to process the file using the callbacks. I'm thinking about writing some kind of state machine to handle the actual interpretation of the file. Say for instance the jsonString callback gets triggered and the value is "vertexattribute" then i can set some state so that when "name" is sent to the jsonString callback i know that it is the name of the vertexattribute etc. Iḿ doing this cause o haven't managed to figure out any other way of doing it. I guess it would have been nice to be able to actually step through the json file e.g step to the beginning of the next array, read the next string etc. anyone know if this is possible? Has anyone had any attempts at writing a reader/writer for the new format? any ideas or thoughts on this? best /christopher Quote Link to comment Share on other sites More sharing options...
crunch Posted April 3, 2012 Share Posted April 3, 2012 Hi! I'm writing an reader/writer for another software, for the new json based bgeo (and geo) format. Right know i'm working in the reader and i'm using the UT_JSONParser class together with the UT_JSONHandle class to process the file using the callbacks. I'm thinking about writing some kind of state machine to handle the actual interpretation of the file. Say for instance the jsonString callback gets triggered and the value is "vertexattribute" then i can set some state so that when "name" is sent to the jsonString callback i know that it is the name of the vertexattribute etc. Iḿ doing this cause o haven't managed to figure out any other way of doing it. I guess it would have been nice to be able to actually step through the json file e.g step to the beginning of the next array, read the next string etc. anyone know if this is possible? Has anyone had any attempts at writing a reader/writer for the new format? any ideas or thoughts on this? best /christopher I assume you've seen $HH/public/geo/hgeo.py? % hython hgeo.py $HH/geo/defgeo.bgeo +++ 0.002 ( 0.002): Loading /hfs/houdini/geo/defgeo.bgeo +++ 0.002 ( 0.000): Done Loading /hfs/houdini/geo/defgeo.bgeo +++ 0.003 ( 0.000): Loaded Topology +++ 0.003 ( 0.000): Loaded Attributes +++ 0.003 ( 0.000): Loaded Primitives +++ 0.003 ( 0.000): Loaded Groups ========== /hfs/houdini/geo/defgeo.bgeo ========== 80 Points 96 Vertices 12 Primitives ----- Attributes ----- Point Attributes numeric P[4] 12 Primitives 12 Poly Primitive 0 is a Poly and has 4 vertices. Vertex[0]->Point[3] P= [0.5, -0.5, -0.5, 1.0] Vertex[1]->Point[0] P= [-0.5, -0.5, -0.5, 1.0] Vertex[2]->Point[1] P= [-0.5, -0.5, 0.5, 1.0] Vertex[3]->Point[2] P= [0.5, -0.5, 0.5, 1.0] Quote Link to comment Share on other sites More sharing options...
Christopher Posted April 4, 2012 Author Share Posted April 4, 2012 Yes, i've looked at it and its somewhat a good reference to the schema and the different properties (not complete). But i'm writing it in c++ and i have no idea whats going on in hjson lib when the file is parsed -> fdata = hjson.load(fp). Quote Link to comment Share on other sites More sharing options...
eetu Posted April 4, 2012 Share Posted April 4, 2012 If you're feeling lazy, you could write .hclassic from Houdini. I haven't really looked at the new file format, but at least the classic is easy to read. Probably not the optimal solution, but hey.. Quote Link to comment Share on other sites More sharing options...
Christopher Posted April 4, 2012 Author Share Posted April 4, 2012 If you're feeling lazy, you could write .hclassic from Houdini. I haven't really looked at the new file format, but at least the classic is easy to read. Probably not the optimal solution, but hey.. not an option unfortunately.. Quote Link to comment Share on other sites More sharing options...
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