XData long and Matrix3d

[essam-salah]

hi

i want to store long , Matrix3d and SubentityId to xdata, but it seems these types are not supported i managed to store long and SubentityId as Handle but i failed to store Matrix3d?

any idea!!

here is what xdata support

ExtendedDataAsciiString = 1000,
ExtendedDataBinaryChunk = 1004,
ExtendedDataControlString = 1002,
ExtendedDataDist = 1041,
ExtendedDataHandle = 1005,
ExtendedDataInteger16 = 1070,
ExtendedDataInteger32 = 1071,
ExtendedDataLayerName = 1003,
ExtendedDataReal = 1040,
ExtendedDataRegAppName = 1001,
ExtendedDataScale = 1042,
ExtendedDataWorldXCoordinate = 1011,
ExtendedDataWorldXDir = 1013,
ExtendedDataWorldXDisp = 1012,
ExtendedDataWorldYCoordinate = 1021,
ExtendedDataWorldYDir = 0x3FF,
ExtendedDataWorldYDisp = 1022,
ExtendedDataWorldZCoordinate = 1031,
ExtendedDataWorldZDir = 1033,
ExtendedDataWorldZDisp = 1032,
ExtendedDataXCoordinate = 1010,
ExtendedDataYCoordinate = 1020,
ExtendedDataZCoordinate = 1030,

[Alexander.Rivilis]

1. SubentityId can not been saved as Handle

2. Matrix3d can be saved as 16 (4 * 4) doubles (for example, in group ExtendedDataReal)

[essam-salah]

@Alexander.Rivilis 

thanks for repy.

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@Alexander.Rivilis wrote:

1. SubentityId can not been saved as Handle

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i wrote two methods, but havn't tested yes.

public static _AcDb.Handle ToHandle(_AcDb.SubentityId seid)
        {
            return new _AcDb.Handle(seid.IndexPtr.ToInt64());
        }
        public static _AcDb.SubentityId ToSubentityId(_AcDb.SubentityType type,long value)
        {
            return new _AcDb.SubentityId(type, new IntPtr(value));
        }

[_gile]

Hi,

To store a Matrix3d in Xdata, you can store it as a coordinate system: origin (1010), X axis (1013), Y axis (1023) and Z axis (1033).

You could also use Xrecords in the Extension Dictionary of the object. DBDictionaries are more flexible than Xdata and can store ObjectIds as Hard/Soft pointers or owners.

[daniel_cadext]

Aren’t some of these values transformed along with the entity? In that case it would be different behavior than Xrecords

[essam-salah]

Hi @_gile 

To store a Matrix3d in Xdata, you can store it as a coordinate system: origin (1010), X axis (1013), Y axis (1023) and Z axis (1033)

another question, how to convert from Matrix3d to CoordinateSystem3d and vice-versa?

Thanks in advance 

[_gile]

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@essam-salah  a écrit :

how to convert from Matrix3d to CoordinateSystem3d and vice-versa?

Thanks in advance 

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The developper's documentation is your friend (as the Visual Studio Object Explorer).

The Matrix3d structure provides a CoordinateSystem3d property and an AlignCoordinateSystem method.