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4224
by cilix42
Fundamentally reworked version of the 3D box tool (among many other things, this fixes bugs #168900 and #168868). See mailing list for details. Sorry for this single large commit but it was unfeasible to keep the history. |
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#ifndef SEEN_TRANSF_MAT_3x4_H
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#define SEEN_TRANSF_MAT_3x4_H
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/*
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* 3x4 transformation matrix to map points from projective 3-space into the projective plane
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*
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* Authors:
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* Maximilian Albert <Anhalter42@gmx.de>
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*
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* Copyright (C) 2007 Authors
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*
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* Released under GNU GPL, read the file 'COPYING' for more information
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*/
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#include "proj_pt.h" |
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#include "axis-manip.h" |
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namespace Proj { |
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class TransfMat3x4 { |
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public: |
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TransfMat3x4(); |
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TransfMat3x4(Pt2 vp_x, Pt2 vp_y, Pt2 vp_z, Pt2 origin); |
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TransfMat3x4(TransfMat3x4 const &rhs); |
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Pt2 column (Proj::Axis axis) const; |
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Pt2 image (Pt3 const &point); |
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6837
by cilix42
More NR::Point ==> Geom::Point |
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Pt3 preimage (Geom::Point const &pt, double coord = 0, Axis = Z); |
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4224
by cilix42
Fundamentally reworked version of the 3D box tool (among many other things, this fixes bugs #168900 and #168868). See mailing list for details. Sorry for this single large commit but it was unfeasible to keep the history. |
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void set_image_pt (Proj::Axis axis, Proj::Pt2 const &pt); |
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void toggle_finite (Proj::Axis axis); |
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double get_infinite_angle (Proj::Axis axis) { |
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if (has_finite_image(axis)) { |
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9020
by JazzyNico
Code refactoring and merging with trunk (revision 10599). |
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return Geom::infinity(); |
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4224
by cilix42
Fundamentally reworked version of the 3D box tool (among many other things, this fixes bugs #168900 and #168868). See mailing list for details. Sorry for this single large commit but it was unfeasible to keep the history. |
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}
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Pt2 vp(column(axis)); |
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6837
by cilix42
More NR::Point ==> Geom::Point |
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return Geom::atan2(Geom::Point(vp[0], vp[1])) * 180.0/M_PI; |
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4224
by cilix42
Fundamentally reworked version of the 3D box tool (among many other things, this fixes bugs #168900 and #168868). See mailing list for details. Sorry for this single large commit but it was unfeasible to keep the history. |
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}
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void set_infinite_direction (Proj::Axis axis, double angle) { // angle is in degrees |
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g_return_if_fail(tmat[2][axis] == 0); // don't set directions for finite VPs |
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double a = angle * M_PI/180; |
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6837
by cilix42
More NR::Point ==> Geom::Point |
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Geom::Point pt(tmat[0][axis], tmat[1][axis]); |
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double rad = Geom::L2(pt); |
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4224
by cilix42
Fundamentally reworked version of the 3D box tool (among many other things, this fixes bugs #168900 and #168868). See mailing list for details. Sorry for this single large commit but it was unfeasible to keep the history. |
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set_image_pt(axis, Proj::Pt2(cos (a) * rad, sin (a) * rad, 0.0)); |
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}
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inline bool has_finite_image (Proj::Axis axis) { return (tmat[2][axis] != 0.0); } |
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gchar * pt_to_str (Proj::Axis axis); |
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bool operator==(const TransfMat3x4 &rhs) const; |
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9020
by JazzyNico
Code refactoring and merging with trunk (revision 10599). |
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TransfMat3x4 operator*(Geom::Affine const &A) const; |
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TransfMat3x4 &operator*=(Geom::Affine const &A); |
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4224
by cilix42
Fundamentally reworked version of the 3D box tool (among many other things, this fixes bugs #168900 and #168868). See mailing list for details. Sorry for this single large commit but it was unfeasible to keep the history. |
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void print() const; |
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5312
by cilix42
Forgot adding files during last commit |
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void copy_tmat(double rhs[3][4]); |
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4224
by cilix42
Fundamentally reworked version of the 3D box tool (among many other things, this fixes bugs #168900 and #168868). See mailing list for details. Sorry for this single large commit but it was unfeasible to keep the history. |
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private: |
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// FIXME: Is changing a single column allowed when a projective coordinate system is specified!?!?!
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void normalize_column (Proj::Axis axis); |
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inline void set_column (Proj::Axis axis, Proj::Pt2 pt) { |
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tmat[0][axis] = pt[0]; |
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tmat[1][axis] = pt[1]; |
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tmat[2][axis] = pt[2]; |
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}
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double tmat[3][4]; |
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};
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} // namespace Proj |
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#endif /* __TRANSF_MAT_3x4_H__ */ |
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/*
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Local Variables:
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mode:c++
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c-file-style:"stroustrup"
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c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
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indent-tabs-mode:nil
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fill-column:99
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End:
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*/
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9020
by JazzyNico
Code refactoring and merging with trunk (revision 10599). |
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// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 :
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