CheatSheetForConvertingto2geom
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Cheat Sheet For Converting to 2geom
If you are just starting I suggest you pick a header file and convert just one function at a time. That will give you a feel for the process as you get more comfortable do more at one time.
Items That you Can Switch NR:: for Geom::
NR::Matrix
NR::Rect
NR::Dim2
NR::L2
NR::Y
NR::X
NR::identify
NR::Coord
Things that need small adjustments or complete replacement
Error looks like | NR Function or Code | 2geom Replacement |
NR::scale
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Geom::Scale (note the capital letter S)
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NR::translate
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Geom::Translate (capital)
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nrrect.extent(NR::X)
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geomrect.dimensions()[Geom::X] OR
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height = r->extent(NR::Y);
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height = r->dimensions()[Geom::Y];
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NR::expansion(nrmatrix)
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geommatrix.descrim()
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desktop.cpp:754: error: 'expand' is not a member of 'Geom' | NR::Rect const viewbox = NR::expand(canvas->getViewbox(), border);
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Geom::Rect viewbox = canvas->getViewbox();
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desktop.cpp:162: error: 'class Geom::Matrix' has no member named 'set_identity' | Mymatrix = set_identity (Nrmatrix)
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identity(Nrmatrix) OR
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desktop.cpp: In member function 'bool SPDesktop::isWithinViewport(SPItem*) const':
desktop.cpp:532: error: conversion from 'boost::optional<NR::Rect>' to non-scalar type 'boost::optional<Geom::D2<Geom::Interval> >' requested |
boost::optional<NR::Rect>
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boost::optional<Geom::Rect>
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desktop.cpp:1004: error: no matching function for call to 'Geom::D2<Geom::Interval>::isEmpty(double)' ./2geom/rect.h:105: note: candidates are: bool Geom::D2<Geom::Interval>::isEmpty() const | if ( !d || d->isEmpty(0.1) ) { return; } |
<nowiki> if ( !d || d->width() < 0.1 || d->height() < 0.1) { return; } |
display/nr-arena-item.cpp:734: error: ‘const class Geom::Matrix’ has no member named ‘test_identity’ | NR::matrix.test_identity()
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local.isIdentity()
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selection-chemistry.cpp:1424: error: no match for ‘operator[]’ in ‘center[X]’
center is a boost::optional<Geom::Point> |
you're missing the * | |
Geom::Rotate doesn't seem have a operator/ what is the trick for turning division in to multiplication, again
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r1/r2
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r1 * r2.inverse()
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NR::Rect 's can be changed to Geom::Rect But it is better not to do this.
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geomrect = to_2geom(nrrect)
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NR::union_bounds()
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Geom::unify()
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sp-item.cpp:814: error: ‘expansionX’ is not a member of ‘Geom’ | dy0 *= NR::expansionY(i2d);
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dy0 *= i2d.expansionY();
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sp-item.cpp:1447: error: ‘const class Geom::Matrix’ has no member named ‘is_translation’ | !(!transform.is_translation() && SP_OBJECT_STYLE(item) && SP_OBJECT_STYLE(item)->getFilter())
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!(!transform.isTranslation() && SP_OBJECT_STYLE(item) && SP_OBJECT_STYLE(item)->getFilter())
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text-context.cpp:1610: error: no matching function for call to ‘to_2geom(boost::optional<Geom::D2<Geom::Interval> >)’ | boost::optional<Geom::Rect> frame_bbox = to_2geom(sp_item_bbox_desktop(frame));
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boost::optional<Geom::Rect> frame_bbox = sp_item_bbox_desktop(frame);
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