SDO_UTIL.AFFINETRANSFORMS

Question

I have the following parameters for 2D affine transformation:
Two translation:
tx=2754.3661 and ty = -237.0731
and rotation in radians: -.001016214498072193185827329
Is this specification correct:
SDO_UTIL.TO_WKTGEOMETRY(SDO_UTIL.AffineTransforms (
geometry =>myGeometry,
translation => 'TRUE', tx => 2754.3661, ty => -237.0731, tz => 0.0,
scaling => 'FALSE', psc1 => NULL, sx => 0.0, sy => 0.0, sz => 0.0,
rotation => 'TRUE',
p1 => MDSYS.SDO_GEOMETRY(2001, NULL, MDSYS.SDO_POINT_TYPE(0, 0, NULL), NULL, NULL), line1 => NULL,
angle => -.001016214498072193185827329,
dir => -1,
shearing => 'FALSE', shxy => 0.0, shyx => 0.0, shxz => 0.0, shzx => 0.0, shyz => 0.0, shzy => 0.0,
reflection => 'FALSE', pref => NULL, lineR => NULL, dirR => -1, planeR => 'FALSE', n => NULL, bigD => NULL
Thanks.
BTW, in PostGIS it works correctly:
ST_Affine (myGeometry, cos(rotation), sin(rotation), -sin(rotation), cos(rotation), tx, ty));
Edited by: qwe14450 on 13-Jul-2012 15:03

Answer 1

Qwe (for Qwe must be your name),
It is tricky to get this function to work as the error message thrown when you get the parameters wrong is useless.
ORA-29532: Java call terminated by uncaught Java exception: java.lang.Exception: Invalid parameter for affine transform
ORA-06512: at "MDSYS.SDO_UTIL", line 266
29532. 00000 -  "Java call terminated by uncaught Java exception: %s"
*Cause:    A Java exception or error was signaled and could not be
           resolved by the Java code.
*Action:   Modify Java code, if this behavior is not intended.The thing I kept yelling at the screen was "what parameter is invalid"!!!!!
But I got this to work:
select mdsys.sdo_geometry(2002,NULL,NULL,SDO_ELEM_INFO_ARRAY(1,2,1),SDO_ORDINATE_ARRAY(2.0,2.0,2.0,4.0,8.0,4.0,12.0,4.0,12.0,10.0,8.0,10.0,5.0,14.0)) as geomm from dual;
select SDO_UTIL.AffineTransforms (
        geometry => mdsys.sdo_geometry(2002,NULL,NULL,SDO_ELEM_INFO_ARRAY(1,2,1),SDO_ORDINATE_ARRAY(2.0,2.0,2.0,4.0,8.0,4.0,12.0,4.0,12.0,10.0,8.0,10.0,5.0,14.0)),
        translation => 'TRUE',
          tx => 2754.3661,
          ty => -237.0731,
          tz => 0.0,
        rotation => 'TRUE',
          p1 => MDSYS.SDO_GEOMETRY(2001, NULL, MDSYS.SDO_POINT_TYPE(0, 0, NULL), NULL, NULL),
          angle => -0.001016214498072193185827329, /*cogo.radians(45),*/
          dir => -1,
          line1 => NULL,
        scaling    => 'FALSE', psc1 => NULL, sx => 0.0, sy => 0.0, sz => 0.0,
        shearing   => 'FALSE', shxy => 0.0, shyx => 0.0, shxz => 0.0, shzx => 0.0, shyz => 0.0, shzy => 0.0,
        reflection => 'FALSE', pref => NULL, lineR => NULL, dirR => -1,
        planeR     => 'FALSE', n => null, bigD => null
  from dual;
-- Result
SDO_GEOMETRY(2002,NULL,NULL,SDO_ELEM_INFO_ARRAY(1,2,1),SDO_ORDINATE_ARRAY(2756.36813139595,-235.075133461338, 2756.3701638246,-233.07513449403, 2762.37016072653,-233.081231779969, 2766.37015866114,-233.085296637262, 2766.37625594708,-227.085299735337, 2762.37625801246,-227.081234878044, 2759.38032441879,-223.078188300459))Note the reference to /*cogo.radians(45),*/.... I have a function Radians in a package called Cogo that I use to convert from degrees (360) to radians:
Create   Function radians(p_degrees in number)
    Return number
  Is
     c_PI  NUMBER(16,14) := 3.14159265358979;
  Begin
    Return p_degrees * (c_PI / 180.0);
  End radians;
/If this helps, please award points.
regards
Simon