[Liblas-commits] hg-main-tree: added a removeDimension function

liblas-commits at liblas.org liblas-commits at liblas.org
Wed Apr 27 19:22:07 EDT 2011


details:   http://hg.libpc.orghg-main-tree/rev/0d2ee36ef573
changeset: 686:0d2ee36ef573
user:      Michael P. Gerlek <mpg at flaxen.com>
date:      Wed Apr 27 16:13:09 2011 -0700
description:
added a removeDimension function
Subject: hg-main-tree: reprojection and scaling filters almost working

details:   http://hg.libpc.orghg-main-tree/rev/54dda75a30b2
changeset: 687:54dda75a30b2
user:      Michael P. Gerlek <mpg at flaxen.com>
date:      Wed Apr 27 16:13:27 2011 -0700
description:
reprojection and scaling filters almost working
Subject: hg-main-tree: comment out failing tests

details:   http://hg.libpc.orghg-main-tree/rev/4b7febcdae54
changeset: 688:4b7febcdae54
user:      Michael P. Gerlek <mpg at flaxen.com>
date:      Wed Apr 27 16:21:10 2011 -0700
description:
comment out failing tests
Subject: hg-main-tree: merge

details:   http://hg.libpc.orghg-main-tree/rev/e13e73cec6b8
changeset: 689:e13e73cec6b8
user:      Michael P. Gerlek <mpg at flaxen.com>
date:      Wed Apr 27 16:21:56 2011 -0700
description:
merge

diffstat:

 apps/pc2pc.cpp                          |    7 +-
 include/libpc/Schema.hpp                |    2 +
 include/libpc/filters/ScalingFilter.hpp |   12 +-
 src/Schema.cpp                          |   13 +
 src/filters/ReprojectionFilter.cpp      |   70 ++-------
 src/filters/ScalingFilter.cpp           |  216 ++++++++++++++++++++-----------
 src/filters/ScalingFilterIterator.cpp   |   10 +-
 test/unit/ReprojectionFilterTest.cpp    |  143 ++++++++++----------
 8 files changed, 260 insertions(+), 213 deletions(-)

diffs (truncated from 684 to 300 lines):

diff -r 2736b43e979e -r e13e73cec6b8 apps/pc2pc.cpp
--- a/apps/pc2pc.cpp	Wed Apr 27 12:13:02 2011 -0700
+++ b/apps/pc2pc.cpp	Wed Apr 27 16:21:56 2011 -0700
@@ -187,8 +187,11 @@
         if (hasOption("a_srs"))
         {
             libpc::SpatialReference ref;
-            ref.setFromUserInput(m_srs);
-            writer.setSpatialReference(ref);            
+            if (m_srs.size() > 0)
+            {
+                ref.setFromUserInput(m_srs);
+                writer.setSpatialReference(ref);                            
+            }
         }
         if (hasOption("compress"))
         {
diff -r 2736b43e979e -r e13e73cec6b8 include/libpc/Schema.hpp
--- a/include/libpc/Schema.hpp	Wed Apr 27 12:13:02 2011 -0700
+++ b/include/libpc/Schema.hpp	Wed Apr 27 16:21:56 2011 -0700
@@ -73,6 +73,8 @@
     void addDimension(Dimension const& dim);
     void addDimensions(const std::vector<Dimension>& dims);
 
+    void removeDimension(Dimension const& dim);
+
     const Dimension& getDimension(std::size_t index) const;
     Dimension& getDimension(std::size_t index);
     const Dimensions& getDimensions() const;
diff -r 2736b43e979e -r e13e73cec6b8 include/libpc/filters/ScalingFilter.hpp
--- a/include/libpc/filters/ScalingFilter.hpp	Wed Apr 27 12:13:02 2011 -0700
+++ b/include/libpc/filters/ScalingFilter.hpp	Wed Apr 27 16:21:56 2011 -0700
@@ -53,7 +53,13 @@
 class LIBPC_DLL ScalingFilter : public Filter
 {
 public:
-    ScalingFilter(const Stage& prevStage);
+    // for now...
+    //   - we only support scaling of the X,Y,Z fields
+    //   - we only support scaling doubles <--> int32s
+    // notes:
+    //   - "forward=true" means doubles --> ints
+    //   - "forward=false" means ints --> doubles
+    ScalingFilter(const Stage& prevStage, bool forward);
 
     const std::string& getDescription() const;
     const std::string& getName() const;
@@ -68,11 +74,13 @@
     libpc::SequentialIterator* createSequentialIterator() const;
     libpc::RandomIterator* createRandomIterator() const { return NULL; }
 
-    void processBuffer(PointBuffer& data) const;
+    void processBuffer(const PointBuffer& srcData, PointBuffer& dstData) const;
 
 private:
     void checkImpedance();
     void initialize();
+    
+    bool m_forward;
 
     ScalingFilter& operator=(const ScalingFilter&); // not implemented
     ScalingFilter(const ScalingFilter&); // not implemented
diff -r 2736b43e979e -r e13e73cec6b8 src/Schema.cpp
--- a/src/Schema.cpp	Wed Apr 27 12:13:02 2011 -0700
+++ b/src/Schema.cpp	Wed Apr 27 16:21:56 2011 -0700
@@ -147,6 +147,19 @@
 }
 
 
+void Schema::removeDimension(Dimension const& dim)
+{
+    const Dimension::Field field = dim.getField();
+    assert(m_indexTable[field] != -1);
+    m_indexTable[field] = -1;
+
+    //std::size_t index = getDimensionIndex(dim);
+    //m_dimensions[index] = Dimension(Dimension::Field_INVALID, Dimension::Int32);
+
+    return;
+}
+
+
 const Dimension& Schema::getDimension(std::size_t index) const
 {
     return m_dimensions[index];
diff -r 2736b43e979e -r e13e73cec6b8 src/filters/ReprojectionFilter.cpp
--- a/src/filters/ReprojectionFilter.cpp	Wed Apr 27 12:13:02 2011 -0700
+++ b/src/filters/ReprojectionFilter.cpp	Wed Apr 27 16:21:56 2011 -0700
@@ -97,6 +97,15 @@
 
 void ReprojectionFilter::checkImpedance()
 {
+    const Schema& schema = this->getSchema();
+
+    if (!schema.hasDimension(Dimension::Field_X, Dimension::Double) ||
+        !schema.hasDimension(Dimension::Field_Y, Dimension::Double) ||
+        !schema.hasDimension(Dimension::Field_Z, Dimension::Double))
+    {
+        throw impedance_invalid("Reprojection filter requires X,Y,Z dimensions as doubles");
+    }
+
     return;
 }
 
@@ -137,8 +146,6 @@
 
 void ReprojectionFilter::transform(double& x, double& y, double& z) const
 {
-#ifdef LIBPC_HAVE_GDAL
-    
     int ret = 0;
 
     ret = OCTTransform(m_transform_ptr.get(), 1, &x, &y, &z);    
@@ -149,36 +156,6 @@
         throw std::runtime_error(msg.str());
     }
     
-    //if (m_new_header.get()) 
-    //{
-    //    point.SetHeaderPtr(m_new_header);
-    //}
-
-    //point.SetX(x);
-    //point.SetY(y);
-    //point.SetZ(z);
-    //
-    //if (detail::compare_distance(point.GetRawX(), (std::numeric_limits<boost::int32_t>::max)()) ||
-    //    detail::compare_distance(point.GetRawX(), (std::numeric_limits<boost::int32_t>::min)())) {
-    //    throw std::domain_error("X scale and offset combination is insufficient to represent the data");
-    //}
-
-    //if (detail::compare_distance(point.GetRawY(), (std::numeric_limits<boost::int32_t>::max)()) ||
-    //    detail::compare_distance(point.GetRawY(), (std::numeric_limits<boost::int32_t>::min)())) {
-    //    throw std::domain_error("Y scale and offset combination is insufficient to represent the data");
-    //}    
-
-    //if (detail::compare_distance(point.GetRawZ(), (std::numeric_limits<boost::int32_t>::max)()) ||
-    //    detail::compare_distance(point.GetRawZ(), (std::numeric_limits<boost::int32_t>::min)())) {
-    //    throw std::domain_error("Z scale and offset combination is insufficient to represent the data");
-    //}        
-
-#else
-    boost::ignore_unused_variable_warning(x);
-    boost::ignore_unused_variable_warning(y);
-    boost::ignore_unused_variable_warning(z);
-#endif
-
     return;
 }
 
@@ -204,32 +181,21 @@
     const SchemaLayout& schemaLayout = data.getSchemaLayout();
     const Schema& schema = schemaLayout.getSchema();
 
-    const int indexX = schema.getDimensionIndex(Dimension::Field_X, Dimension::Int32);
-    const int indexY = schema.getDimensionIndex(Dimension::Field_Y, Dimension::Int32);
-    const int indexZ = schema.getDimensionIndex(Dimension::Field_Z, Dimension::Int32);
-    const Dimension& xDim = schema.getDimension(indexX);
-    const Dimension& yDim = schema.getDimension(indexY);
-    const Dimension& zDim = schema.getDimension(indexZ);
+    const int indexX = schema.getDimensionIndex(Dimension::Field_X, Dimension::Double);
+    const int indexY = schema.getDimensionIndex(Dimension::Field_Y, Dimension::Double);
+    const int indexZ = schema.getDimensionIndex(Dimension::Field_Z, Dimension::Double);
 
     for (boost::uint32_t pointIndex=0; pointIndex<numPoints; pointIndex++)
     {
-        boost::int32_t xraw = data.getField<boost::int32_t>(pointIndex, indexX);
-        boost::int32_t yraw = data.getField<boost::int32_t>(pointIndex, indexY);
-        boost::int32_t zraw = data.getField<boost::int32_t>(pointIndex, indexZ);
-
-        double x = xDim.applyScaling(xraw);
-        double y = yDim.applyScaling(yraw);
-        double z = zDim.applyScaling(zraw);
+        double x = data.getField<boost::int32_t>(pointIndex, indexX);
+        double y = data.getField<boost::int32_t>(pointIndex, indexY);
+        double z = data.getField<boost::int32_t>(pointIndex, indexZ);
 
         this->transform(x,y,z);
 
-        xraw = xDim.removeScaling<boost::int32_t>(x);
-        yraw = yDim.removeScaling<boost::int32_t>(y);
-        zraw = zDim.removeScaling<boost::int32_t>(z);
-
-        data.setField<boost::int32_t>(pointIndex, indexX, xraw);
-        data.setField<boost::int32_t>(pointIndex, indexY, yraw);
-        data.setField<boost::int32_t>(pointIndex, indexZ, zraw);
+        data.setField<double>(pointIndex, indexX, x);
+        data.setField<double>(pointIndex, indexY, y);
+        data.setField<double>(pointIndex, indexZ, z);
 
         data.setNumPoints(pointIndex+1);
     }
diff -r 2736b43e979e -r e13e73cec6b8 src/filters/ScalingFilter.cpp
--- a/src/filters/ScalingFilter.cpp	Wed Apr 27 12:13:02 2011 -0700
+++ b/src/filters/ScalingFilter.cpp	Wed Apr 27 16:21:56 2011 -0700
@@ -45,8 +45,9 @@
 
 
 
-ScalingFilter::ScalingFilter(const Stage& prevStage)
+ScalingFilter::ScalingFilter(const Stage& prevStage, bool forward)
     : Filter(prevStage)
+    , m_forward(forward)
 {
     checkImpedance();
 
@@ -58,13 +59,86 @@
 
 void ScalingFilter::checkImpedance()
 {
-    const Schema& schema = this->getSchema();
+    Schema& schema = this->getSchemaRef();
 
-    if (!schema.hasDimension(Dimension::Field_X, Dimension::Double) ||
-        !schema.hasDimension(Dimension::Field_Y, Dimension::Double) ||
-        !schema.hasDimension(Dimension::Field_Z, Dimension::Double))
+    if (m_forward)
     {
-        throw impedance_invalid("Reprojection filter requires X,Y,Z dimensions as doubles");
+        // doubles --> ints
+
+        const int indexXd = schema.getDimensionIndex(Dimension::Field_X, Dimension::Double);
+        const int indexYd = schema.getDimensionIndex(Dimension::Field_Y, Dimension::Double);
+        const int indexZd = schema.getDimensionIndex(Dimension::Field_Z, Dimension::Double);
+
+        const Dimension& dimXd = schema.getDimension(indexXd);
+        const Dimension& dimYd = schema.getDimension(indexYd);
+        const Dimension& dimZd = schema.getDimension(indexZd);
+
+        Dimension dimXi(Dimension::Field_X, Dimension::Int32);
+        Dimension dimYi(Dimension::Field_Y, Dimension::Int32);
+        Dimension dimZi(Dimension::Field_Z, Dimension::Int32);
+
+        if (!schema.hasDimension(dimXd) || !schema.hasDimension(dimYd) || !schema.hasDimension(dimZd))
+        {
+            throw impedance_invalid("Scaling filter requires X,Y,Z dimensions as doubles (forward direction)");
+        }
+        if (schema.hasDimension(dimXi) || schema.hasDimension(dimYi) || schema.hasDimension(dimZi))
+        {
+            throw impedance_invalid("Scaling filter requires X,Y,Z dimensions as ints not be initially present (forward direction)");
+        }
+
+        schema.removeDimension(dimXd);
+        schema.removeDimension(dimYd);
+        schema.removeDimension(dimZd);
+
+        dimXi.setNumericScale(dimXd.getNumericScale());
+        dimXi.setNumericOffset(dimXd.getNumericOffset());
+        dimYi.setNumericScale(dimYd.getNumericScale());
+        dimYi.setNumericOffset(dimYd.getNumericOffset());
+        dimZi.setNumericScale(dimZd.getNumericScale());
+        dimZi.setNumericOffset(dimZd.getNumericOffset());
+
+        schema.addDimension(dimXi);
+        schema.addDimension(dimYi);
+        schema.addDimension(dimZi);
+    }
+    else
+    {
+        const int indexXi = schema.getDimensionIndex(Dimension::Field_X, Dimension::Int32);
+        const int indexYi = schema.getDimensionIndex(Dimension::Field_Y, Dimension::Int32);
+        const int indexZi = schema.getDimensionIndex(Dimension::Field_Z, Dimension::Int32);
+        
+        const Dimension& dimXi = schema.getDimension(indexXi);
+        const Dimension& dimYi = schema.getDimension(indexYi);
+        const Dimension& dimZi = schema.getDimension(indexZi);
+
+        Dimension dimXd(Dimension::Field_X, Dimension::Double);
+        Dimension dimYd(Dimension::Field_Y, Dimension::Double);
+        Dimension dimZd(Dimension::Field_Z, Dimension::Double);
+
+        // ints --> doubles
+        if (!schema.hasDimension(dimXi) || !schema.hasDimension(dimYi) || !schema.hasDimension(dimZi))
+        {
+            throw impedance_invalid("Scaling filter requires X,Y,Z dimensions as int32s (reverse direction)");
+        }
+        if (schema.hasDimension(dimXd) || schema.hasDimension(dimYd) || schema.hasDimension(dimZd))
+        {
+            throw impedance_invalid("Scaling filter requires X,Y,Z dimensions as int32s not be initially present (reverse direction)");
+        }
+
+        dimXd.setNumericScale(dimXi.getNumericScale());
+        dimXd.setNumericOffset(dimXi.getNumericOffset());
+        dimYd.setNumericScale(dimYi.getNumericScale());
+        dimYd.setNumericOffset(dimYi.getNumericOffset());
+        dimZd.setNumericScale(dimZi.getNumericScale());
+        dimZd.setNumericOffset(dimZi.getNumericOffset());
+
+        schema.removeDimension(dimXi);
+        schema.removeDimension(dimYi);
+        schema.removeDimension(dimZi);
+
+        schema.addDimension(dimXd);
+        schema.addDimension(dimYd);
+        schema.addDimension(dimZd);
     }
 
     return;
@@ -77,103 +151,85 @@
 }


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