Subject:
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Re: A comprehensive LDraw object model
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Newsgroups:
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lugnet.cad.dev
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Date:
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Sun, 10 Feb 2002 06:33:26 GMT
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Viewed:
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477 times
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I like this.
I don't think I can contribute that much. I would like to though. I have
been working in Java with my animation program
(http://www.cc.utah.edu/~jer29950/lani), and I can contribute a class for
LineType1. Most useful is a rotation function that I would like to think
is optimized pretty good. However, I am no computer scientist, so maybe it
isn't any good. And it took me forever to write it (well, copy if from a
book, optimize it a bit more, and make it useful to me). So I am not
exactly a super resource, but I would like to see what Jeremy is proposing
take off.
James
In lugnet.cad.dev, Jeremy H. Sproat writes:
> In lugnet.cad.dev, Jeremy H. Sproat writes:
> > If the LDraw community can pool their efforts into providing at least an
> > object model for LDraw parts and functionality,
>
> Here's my first contribution, a rough outline of a class structure.
>
> *** LDRAW LINE TYPE CLASSES ***
>
> abstract class LineType - ancestor class for all line-type objects
>
> + class LineType0 - comment line-type
>
> + class LineTypeCommand - command line-type
>
> + abstract class PhysicalLineType - ancestor class for all physically
> mutable line-types
>
> + class LineType1 - subpart line-type
>
> + abstract class PrimitiveLineType - ancestor class for all
> line-segment-containing line-types
>
> + class LineType2 - line segment line-type
>
> + class LineType3 - triangle line-type
>
> + class LineType4 - quad line-type
>
> + class LineType5 - optional line segment line-type
>
> + class LineTypeNull - blank line-type
>
> *** LDRAW DAT MANAGEMENT CLASSES ***
>
> class ColorManager
>
> class LDrawFile - a container for LineType objects, represents a single datfile
>
> + class LDrawFileMulti - a container for LDrawFile objects, represents an
> MPD file
>
> abstract class ModelLoader - ancestor class for all model loaders, model cache
>
> + class DiskModelLoader - loads datfiles from local storage
>
> + class HTTPModelLoader - loads datfiles from web repository
>
> class ModelParser - parses a datfile into its component LineType objects
>
> *** LDRAW DAT RENDERER CLASSES ***
>
> abstract class LDrawRenderer - ancestor class for renderers
>
> + class LDrawRendererOrthographic - renders LDraw.exe style
>
> *** MATH CLASSES ***
>
> abstract class MatrixNxN - ancestor class for transformation matrices
>
> + class Matrix4x4 - a 4x4 transformation matrix
>
> abstract class VectorN - ancestor class for vectors
>
> + class Vector3 - a 3-element vector, useful for coordinates, euler angles,
> RGB color values, etc.
>
> + class Vector4 - a 4-element vector, useful for 4x4 Matrix math,
> quaternions, etc.
>
> Cheers,
> - jsproat
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Message is in Reply To:
 | | Re: A comprehensive LDraw object model
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| (...) Here's my first contribution, a rough outline of a class structure. *** LDRAW LINE TYPE CLASSES *** abstract class LineType - ancestor class for all line-type objects + class LineType0 - comment line-type + class LineTypeCommand - command (...) (22 years ago, 9-Feb-02, to lugnet.cad.dev)
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