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Add missing proto for ST_CurveToLine
authorRegina Obe <lr@pcorp.us>
Tue, 4 Nov 2008 20:05:59 +0000 (20:05 +0000)
committerRegina Obe <lr@pcorp.us>
Tue, 4 Nov 2008 20:05:59 +0000 (20:05 +0000)
git-svn-id: http://svn.osgeo.org/postgis/trunk@3247 b70326c6-7e19-0410-871a-916f4a2858ee

doc/reference_new.xml patch | blob | history

diff --git a/doc/reference_new.xml b/doc/reference_new.xml
index a34e26138c80fcbaa1404c13add47c54d60d533d..04a71e2b86355a57916853290b10adfe04129d22 100644 (file)
--- a/doc/reference_new.xml
+++ b/doc/reference_new.xml
@@ -8419,7 +8419,11 @@ SELECT ST_AsEWKT(ST_Collect(ST_GeomFromEWKT('POINT(1 2 3)'),
            <funcsynopsis>
              <funcprototype>
                <funcdef>geometry <function>ST_CurveToLine</function></funcdef>
-               <paramdef><type>geometry </type> <parameter>geomCircularString</parameter></paramdef>
+               <paramdef><type>geometry </type> <parameter>curveGeom</parameter></paramdef>
+             </funcprototype>
+                 <funcprototype>
+               <funcdef>geometry <function>ST_CurveToLine</function></funcdef>
+               <paramdef><type>int </type> <parameter>segments_per_qtr_circle</parameter></paramdef>
              </funcprototype>
            </funcsynopsis>
          </refsynopsisdiv>
@@ -8468,51 +8472,59 @@ SELECT ST_AsEWKT(ST_Collect(ST_GeomFromEWKT('POINT(1 2 3)'),
        
            <programlisting>SELECT ST_AsText(ST_CurveToLine(ST_GeomFromText('CIRCULARSTRING(220268 150415,220227 150505,220227 150406)')));
                
-               --Result --
-                LINESTRING(220268 150415,220269.95064912 150416.539364228,220271.823415575 150418.17258804,220273.613787707 150419.895736857,
-                220275.317452352 150421.704659462,220276.930305234 150423.594998003,220278.448460847 150425.562198489,
-                220279.868261823 150427.60152176,220281.186287736 150429.708054909,220282.399363347 150431.876723113,
-                220283.50456625 150434.10230186,220284.499233914 150436.379429536,220285.380970099 150438.702620341,220286.147650624 150441.066277505,
-                220286.797428488 150443.464706771,220287.328738321 150445.892130112,220287.740300149 150448.342699654,
-                220288.031122486 150450.810511759,220288.200504713 150453.289621251,220288.248038775 150455.77405574,
-                220288.173610157 150458.257830005,220287.977398166 150460.734960415,220287.659875492 150463.199479347,
-                220287.221807076 150465.64544956,220286.664248262 150468.066978495,220285.988542259 150470.458232479,220285.196316903 150472.81345077,
-                220284.289480732 150475.126959442,220283.270218395 150477.39318505,220282.140985384 150479.606668057,
-                220280.90450212 150481.762075989,220279.5637474 150483.85421628,220278.12195122 150485.87804878,
-                220276.582586992 150487.828697901,220274.949363179 150489.701464356,220273.226214362 150491.491836488,
-                220271.417291757 150493.195501133,220269.526953216 150494.808354014,220267.559752731 150496.326509628,
-                220265.520429459 150497.746310603,220263.41389631 150499.064336517,220261.245228106 150500.277412127,
-                220259.019649359 150501.38261503,220256.742521683 150502.377282695,220254.419330878 150503.259018879,
-                220252.055673714 150504.025699404,220249.657244448 150504.675477269,220247.229821107 150505.206787101,
-                220244.779251566 150505.61834893,220242.311439461 150505.909171266,220239.832329968 150506.078553494,
-                220237.347895479 150506.126087555,220234.864121215 150506.051658938,220232.386990804 150505.855446946,
-                220229.922471872 150505.537924272,220227.47650166 150505.099855856,220225.054972724 150504.542297043,
-                220222.663718741 150503.86659104,220220.308500449 150503.074365683,
-                220217.994991777 150502.167529512,220215.72876617 150501.148267175,
-                220213.515283163 150500.019034164,220211.35987523 150498.7825509,
-                220209.267734939 150497.441796181,220207.243902439 150496,
-                220205.293253319 150494.460635772,220203.420486864 150492.82741196,220201.630114732 150491.104263143,
-                220199.926450087 150489.295340538,220198.313597205 150487.405001997,220196.795441592 150485.437801511,
-                220195.375640616 150483.39847824,220194.057614703 150481.291945091,220192.844539092 150479.123276887,220191.739336189 150476.89769814,
-                220190.744668525 150474.620570464,220189.86293234 150472.297379659,220189.096251815 150469.933722495,
-                220188.446473951 150467.535293229,220187.915164118 150465.107869888,220187.50360229 150462.657300346,
-                220187.212779953 150460.189488241,220187.043397726 150457.710378749,220186.995863664 150455.22594426,
-                220187.070292282 150452.742169995,220187.266504273 150450.265039585,220187.584026947 150447.800520653,
-                220188.022095363 150445.35455044,220188.579654177 150442.933021505,220189.25536018 150440.541767521,
-                220190.047585536 150438.18654923,220190.954421707 150435.873040558,220191.973684044 150433.60681495,
-                220193.102917055 150431.393331943,220194.339400319 150429.237924011,220195.680155039 150427.14578372,220197.12195122 150425.12195122,
-                220198.661315447 150423.171302099,220200.29453926 150421.298535644,220202.017688077 150419.508163512,220203.826610682 150417.804498867,
-                220205.716949223 150416.191645986,220207.684149708 150414.673490372,220209.72347298 150413.253689397,220211.830006129 150411.935663483,
-                220213.998674333 150410.722587873,220216.22425308 150409.61738497,220218.501380756 150408.622717305,220220.824571561 150407.740981121,
-                220223.188228725 150406.974300596,220225.586657991 150406.324522731,220227 150406)
-
-               --3d example
-               SELECT ST_AsEWKT(ST_CurveToLine(ST_GeomFromEWKT('CIRCULARSTRING(220268 150415 1,220227 150505 2,220227 150406 3)')));
-               Output
-               ------
-                LINESTRING(220268 150415 1,220269.95064912 150416.539364228 1.0181172856673,
-                220271.823415575 150418.17258804 1.03623457133459,220273.613787707 150419.895736857 1.05435185700189,....AD INFINITUM ....
-                       220225.586657991 150406.324522731 1.32611114201132,220227 150406 3)
+--Result --
+ LINESTRING(220268 150415,220269.95064912 150416.539364228,220271.823415575 150418.17258804,220273.613787707 150419.895736857,
+ 220275.317452352 150421.704659462,220276.930305234 150423.594998003,220278.448460847 150425.562198489,
+ 220279.868261823 150427.60152176,220281.186287736 150429.708054909,220282.399363347 150431.876723113,
+ 220283.50456625 150434.10230186,220284.499233914 150436.379429536,220285.380970099 150438.702620341,220286.147650624 150441.066277505,
+ 220286.797428488 150443.464706771,220287.328738321 150445.892130112,220287.740300149 150448.342699654,
+ 220288.031122486 150450.810511759,220288.200504713 150453.289621251,220288.248038775 150455.77405574,
+ 220288.173610157 150458.257830005,220287.977398166 150460.734960415,220287.659875492 150463.199479347,
+ 220287.221807076 150465.64544956,220286.664248262 150468.066978495,220285.988542259 150470.458232479,220285.196316903 150472.81345077,
+ 220284.289480732 150475.126959442,220283.270218395 150477.39318505,220282.140985384 150479.606668057,
+ 220280.90450212 150481.762075989,220279.5637474 150483.85421628,220278.12195122 150485.87804878,
+ 220276.582586992 150487.828697901,220274.949363179 150489.701464356,220273.226214362 150491.491836488,
+ 220271.417291757 150493.195501133,220269.526953216 150494.808354014,220267.559752731 150496.326509628,
+ 220265.520429459 150497.746310603,220263.41389631 150499.064336517,220261.245228106 150500.277412127,
+ 220259.019649359 150501.38261503,220256.742521683 150502.377282695,220254.419330878 150503.259018879,
+ 220252.055673714 150504.025699404,220249.657244448 150504.675477269,220247.229821107 150505.206787101,
+ 220244.779251566 150505.61834893,220242.311439461 150505.909171266,220239.832329968 150506.078553494,
+ 220237.347895479 150506.126087555,220234.864121215 150506.051658938,220232.386990804 150505.855446946,
+ 220229.922471872 150505.537924272,220227.47650166 150505.099855856,220225.054972724 150504.542297043,
+ 220222.663718741 150503.86659104,220220.308500449 150503.074365683,
+ 220217.994991777 150502.167529512,220215.72876617 150501.148267175,
+ 220213.515283163 150500.019034164,220211.35987523 150498.7825509,
+ 220209.267734939 150497.441796181,220207.243902439 150496,
+ 220205.293253319 150494.460635772,220203.420486864 150492.82741196,220201.630114732 150491.104263143,
+ 220199.926450087 150489.295340538,220198.313597205 150487.405001997,220196.795441592 150485.437801511,
+ 220195.375640616 150483.39847824,220194.057614703 150481.291945091,220192.844539092 150479.123276887,220191.739336189 150476.89769814,
+ 220190.744668525 150474.620570464,220189.86293234 150472.297379659,220189.096251815 150469.933722495,
+ 220188.446473951 150467.535293229,220187.915164118 150465.107869888,220187.50360229 150462.657300346,
+ 220187.212779953 150460.189488241,220187.043397726 150457.710378749,220186.995863664 150455.22594426,
+ 220187.070292282 150452.742169995,220187.266504273 150450.265039585,220187.584026947 150447.800520653,
+ 220188.022095363 150445.35455044,220188.579654177 150442.933021505,220189.25536018 150440.541767521,
+ 220190.047585536 150438.18654923,220190.954421707 150435.873040558,220191.973684044 150433.60681495,
+ 220193.102917055 150431.393331943,220194.339400319 150429.237924011,220195.680155039 150427.14578372,220197.12195122 150425.12195122,
+ 220198.661315447 150423.171302099,220200.29453926 150421.298535644,220202.017688077 150419.508163512,220203.826610682 150417.804498867,
+ 220205.716949223 150416.191645986,220207.684149708 150414.673490372,220209.72347298 150413.253689397,220211.830006129 150411.935663483,
+ 220213.998674333 150410.722587873,220216.22425308 150409.61738497,220218.501380756 150408.622717305,220220.824571561 150407.740981121,
+ 220223.188228725 150406.974300596,220225.586657991 150406.324522731,220227 150406)
+
+--3d example
+SELECT ST_AsEWKT(ST_CurveToLine(ST_GeomFromEWKT('CIRCULARSTRING(220268 150415 1,220227 150505 2,220227 150406 3)')));
+Output
+------
+ LINESTRING(220268 150415 1,220269.95064912 150416.539364228 1.0181172856673,
+ 220271.823415575 150418.17258804 1.03623457133459,220273.613787707 150419.895736857 1.05435185700189,....AD INFINITUM ....
+       220225.586657991 150406.324522731 1.32611114201132,220227 150406 3)
+       
+--use only 2 segments to approximate quarter circle
+SELECT ST_AsText(ST_CurveToLine(ST_GeomFromText('CIRCULARSTRING(220268 150415,220227 150505,220227 150406)'),2));
+st_astext                                                                                              --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
+ LINESTRING(220268 150415,220287.740300149 150448.342699654,220278.12195122 150485.87804878,
+ 220244.779251566 150505.61834893,220207.243902439 150496,220187.50360229 150462.657300346,
+ 220197.12195122 150425.12195122,220227 150406)
+
 
                </programlisting>
          </refsection>
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