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| Original file line number | Diff line number | Diff line change |
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| .. _filters.assign: | ||
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| filters.assign | ||
| =================== | ||
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| The assign filter allows you set the value of a dimension for all points | ||
| to a provided value. | ||
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| Example 1 | ||
| --------- | ||
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| This pipeline sets the PointSourceId of all points from 'autzen-dd.las' | ||
| to the value '26'. | ||
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| .. code-block:: json | ||
| { | ||
| "pipeline":[ | ||
| "autzen-dd.las", | ||
| { | ||
| "type":"filters.assign", | ||
| "dimension":"PointSourceId", | ||
| "value":26 | ||
| }, | ||
| { | ||
| "filename":"attributed.las", | ||
| "scale_x":0.0000001, | ||
| "scale_y":0.0000001 | ||
| } | ||
| ] | ||
| } | ||
| Options | ||
| ------- | ||
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| dimension | ||
| Name of the dimension whose value should be altered. [Required] | ||
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| value | ||
| Value to apply to the dimension. [Required] | ||
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| /****************************************************************************** | ||
| * Copyright (c) 2017, Hobu Inc., info@hobu.co | ||
| * | ||
| * All rights reserved. | ||
| * | ||
| * Redistribution and use in source and binary forms, with or without | ||
| * modification, are permitted provided that the following | ||
| * conditions are met: | ||
| * | ||
| * * Redistributions of source code must retain the above copyright | ||
| * notice, this list of conditions and the following disclaimer. | ||
| * * Redistributions in binary form must reproduce the above copyright | ||
| * notice, this list of conditions and the following disclaimer in | ||
| * the documentation and/or other materials provided | ||
| * with the distribution. | ||
| * * Neither the name of Hobu, Inc. or Flaxen Geo Consulting nor the | ||
| * names of its contributors may be used to endorse or promote | ||
| * products derived from this software without specific prior | ||
| * written permission. | ||
| * | ||
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | ||
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | ||
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS | ||
| * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE | ||
| * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, | ||
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, | ||
| * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS | ||
| * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED | ||
| * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, | ||
| * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT | ||
| * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY | ||
| * OF SUCH DAMAGE. | ||
| ****************************************************************************/ | ||
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| #include "AssignFilter.hpp" | ||
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| #include <pdal/pdal_macros.hpp> | ||
| #include <pdal/StageFactory.hpp> | ||
| #include <pdal/util/ProgramArgs.hpp> | ||
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| namespace pdal | ||
| { | ||
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| static PluginInfo const s_info = PluginInfo( | ||
| "filters.assign", | ||
| "Assign values for a dimension using a specified value.", | ||
| "http://pdal.io/stages/filters.assign.html" ); | ||
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| CREATE_STATIC_PLUGIN(1, 0, AssignFilter, Filter, s_info) | ||
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| void AssignFilter::addArgs(ProgramArgs& args) | ||
| { | ||
| args.add("dimension", "Dimension on which to filter", m_dimName). | ||
| setPositional(); | ||
| args.add("value", "Value to set on matching points", m_value). | ||
| setPositional(); | ||
| } | ||
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| void AssignFilter::prepared(PointTableRef table) | ||
| { | ||
| m_dim = table.layout()->findDim(m_dimName); | ||
| if (m_dim == Dimension::Id::Unknown) | ||
| throw pdal_error(getName() + ": Dimension '" + m_dimName + | ||
| "' not found."); | ||
| } | ||
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| bool AssignFilter::processOne(PointRef& point) | ||
| { | ||
| point.setField(m_dim, m_value); | ||
| return true; | ||
| } | ||
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| void AssignFilter::filter(PointView& view) | ||
| { | ||
| PointRef point(view, 0); | ||
| for (PointId id = 0; id < view.size(); ++id) | ||
| { | ||
| point.setPointId(id); | ||
| processOne(point); | ||
| } | ||
| } | ||
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| } // namespace pdal | ||
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