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| author | Johan B. C. Engelen <jbc.engelen@swissonline.ch> | 2008-05-30 20:46:01 +0000 |
|---|---|---|
| committer | johanengelen <johanengelen@users.sourceforge.net> | 2008-05-30 20:46:01 +0000 |
| commit | 6b1409d35b63b84891ea84190650493f1dd635c0 (patch) | |
| tree | 036f5230930f59a19f64353040af483116a09656 /src/live_effects/lpe-lattice.cpp | |
| parent | LPE STACKING! (diff) | |
| download | inkscape-6b1409d35b63b84891ea84190650493f1dd635c0.tar.gz inkscape-6b1409d35b63b84891ea84190650493f1dd635c0.zip | |
add missing files
(bzr r5767)
Diffstat (limited to 'src/live_effects/lpe-lattice.cpp')
| -rw-r--r-- | src/live_effects/lpe-lattice.cpp | 253 |
1 files changed, 253 insertions, 0 deletions
diff --git a/src/live_effects/lpe-lattice.cpp b/src/live_effects/lpe-lattice.cpp new file mode 100644 index 000000000..001aa6b13 --- /dev/null +++ b/src/live_effects/lpe-lattice.cpp @@ -0,0 +1,253 @@ +#define INKSCAPE_LPE_LATTICE_CPP
+/** \file
+ * LPE <lattice> implementation
+
+ */
+/*
+ * Authors:
+ * Johan Engelen <j.b.c.engelen@utwente.nl>
+ * Steren Giannini
+ * Noé Falzon
+ * Victor Navez
+*
+* Copyright (C) 2007-2008 Authors
+ *
+ * Released under GNU GPL, read the file 'COPYING' for more information
+ */
+
+#include "live_effects/lpe-lattice.h"
+
+#include "sp-shape.h"
+#include "sp-item.h"
+#include "sp-path.h"
+#include "display/curve.h"
+#include "libnr/n-art-bpath-2geom.h"
+#include "svg/svg.h"
+
+#include <2geom/sbasis.h>
+#include <2geom/sbasis-2d.h>
+#include <2geom/sbasis-geometric.h>
+#include <2geom/bezier-to-sbasis.h>
+#include <2geom/sbasis-to-bezier.h>
+#include <2geom/d2.h>
+#include <2geom/piecewise.h>
+#include <2geom/transforms.h>
+
+using namespace Geom;
+
+namespace Inkscape {
+namespace LivePathEffect {
+
+LPELattice::LPELattice(LivePathEffectObject *lpeobject) :
+ Effect(lpeobject),
+
+ // initialise your parameters here:
+ grid_point0(_("Control handle 0"), _("Tadah"), "gridpoint0", &wr, this),
+ grid_point1(_("Control handle 1"), _("Tadah"), "gridpoint1", &wr, this),
+ grid_point2(_("Control handle 2"), _("Tadah"), "gridpoint2", &wr, this),
+ grid_point3(_("Control handle 3"), _("Tadah"), "gridpoint3", &wr, this),
+ grid_point4(_("Control handle 4"), _("Tadah"), "gridpoint4", &wr, this),
+ grid_point5(_("Control handle 5"), _("Tadah"), "gridpoint5", &wr, this),
+ grid_point6(_("Control handle 6"), _("Tadah"), "gridpoint6", &wr, this),
+ grid_point7(_("Control handle 7"), _("Tadah"), "gridpoint7", &wr, this),
+ grid_point8(_("Control handle 8"), _("Tadah"), "gridpoint8", &wr, this),
+ grid_point9(_("Control handle 9"), _("Tadah"), "gridpoint9", &wr, this),
+ grid_point10(_("Control handle 10"), _("Tadah"), "gridpoint10", &wr, this),
+ grid_point11(_("Control handle 11"), _("Tadah"), "gridpoint11", &wr, this),
+ grid_point12(_("Control handle 12"), _("Tadah"), "gridpoint12", &wr, this),
+ grid_point13(_("Control handle 13"), _("Tadah"), "gridpoint13", &wr, this),
+ grid_point14(_("Control handle 14"), _("Tadah"), "gridpoint14", &wr, this),
+ grid_point15(_("Control handle 15"), _("Tadah"), "gridpoint15", &wr, this)
+
+{
+ // register all your parameters here, so Inkscape knows which parameters this effect has:
+ registerParameter( dynamic_cast<Parameter *>(&grid_point0) );
+ registerParameter( dynamic_cast<Parameter *>(&grid_point1) );
+ registerParameter( dynamic_cast<Parameter *>(&grid_point2) );
+ registerParameter( dynamic_cast<Parameter *>(&grid_point3) );
+ registerParameter( dynamic_cast<Parameter *>(&grid_point4) );
+ registerParameter( dynamic_cast<Parameter *>(&grid_point5) );
+ registerParameter( dynamic_cast<Parameter *>(&grid_point6) );
+ registerParameter( dynamic_cast<Parameter *>(&grid_point7) );
+ registerParameter( dynamic_cast<Parameter *>(&grid_point8) );
+ registerParameter( dynamic_cast<Parameter *>(&grid_point9) );
+ registerParameter( dynamic_cast<Parameter *>(&grid_point10) );
+ registerParameter( dynamic_cast<Parameter *>(&grid_point11) );
+ registerParameter( dynamic_cast<Parameter *>(&grid_point12) );
+ registerParameter( dynamic_cast<Parameter *>(&grid_point13) );
+ registerParameter( dynamic_cast<Parameter *>(&grid_point14) );
+ registerParameter( dynamic_cast<Parameter *>(&grid_point15) );
+
+
+}
+
+LPELattice::~LPELattice()
+{
+
+}
+
+
+Geom::Piecewise<Geom::D2<Geom::SBasis> >
+LPELattice::doEffect_pwd2 (Geom::Piecewise<Geom::D2<Geom::SBasis> > const & pwd2_in)
+{
+ D2<SBasis2d> sb2;
+
+ //Initialisation of the sb2
+ for(unsigned dim = 0; dim < 2; dim++) {
+ sb2[dim].us = 2;
+ sb2[dim].vs = 2;
+ const int depth = sb2[dim].us*sb2[dim].vs;
+ sb2[dim].resize(depth, Linear2d(0));
+ }
+
+ //Grouping the point params in a convenient vector
+ std::vector<Geom::Point *> handles(16);
+
+ handles[0] = &grid_point0;
+ handles[1] = &grid_point1;
+ handles[2] = &grid_point2;
+ handles[3] = &grid_point3;
+ handles[4] = &grid_point4;
+ handles[5] = &grid_point5;
+ handles[6] = &grid_point6;
+ handles[7] = &grid_point7;
+ handles[8] = &grid_point8;
+ handles[9] = &grid_point9;
+ handles[10] = &grid_point10;
+ handles[11] = &grid_point11;
+ handles[12] = &grid_point12;
+ handles[13] = &grid_point13;
+ handles[14] = &grid_point14;
+ handles[15] = &grid_point15;
+
+ Geom::Point origin = Geom::Point(boundingbox_X.min(),boundingbox_Y.min());
+
+ double width = boundingbox_X.extent();
+ double height = boundingbox_Y.extent();
+
+ //numbering is based on 4 rectangles.
+ for(unsigned dim = 0; dim < 2; dim++) {
+ Geom::Point dir(0,0);
+ dir[dim] = 1;
+ for(unsigned vi = 0; vi < sb2[dim].vs; vi++) {
+ for(unsigned ui = 0; ui < sb2[dim].us; ui++) {
+ for(unsigned iv = 0; iv < 2; iv++) {
+ for(unsigned iu = 0; iu < 2; iu++) {
+ unsigned corner = iu + 2*iv;
+ unsigned i = ui + vi*sb2[dim].us;
+
+ //This is the offset from the Upperleft point
+ Geom::Point base( (ui + iu*(3-2*ui))*width/3.,
+ (vi + iv*(3-2*vi))*height/3.);
+
+ //Special action for corners
+ if(vi == 0 && ui == 0) {
+ base = Geom::Point(0,0);
+ }
+
+ // i = Upperleft corner of the considerated rectangle
+ // corner = actual corner of the rectangle
+ // origin = Upperleft point
+ double dl = dot((*handles[corner+4*i] - (base + origin)), dir)/dot(dir,dir);
+ sb2[dim][i][corner] = dl/( dim ? height : width )*pow(4.0,ui+vi);
+ }
+ }
+ }
+ }
+ }
+
+ Piecewise<D2<SBasis> > output;
+ output.push_cut(0.);
+ for(unsigned i = 0; i < pwd2_in.size(); i++) {
+ D2<SBasis> B = pwd2_in[i];
+ B -= origin;
+ B*= 1/width;
+ //Here comes the magic
+ D2<SBasis> tB = compose_each(sb2,B);
+ tB = tB * width + origin;
+
+ output.push(tB,i+1);
+ }
+
+ return output;
+}
+
+void
+LPELattice::doBeforeEffect (SPLPEItem *lpeitem)
+{
+ original_bbox(lpeitem);
+}
+
+void
+LPELattice::resetDefaults(SPItem * item)
+{
+ original_bbox(SP_LPE_ITEM(item), false);
+
+ // place the 16 control points
+ grid_point0[Geom::X] = boundingbox_X.min();
+ grid_point0[Geom::Y] = boundingbox_Y.min();
+
+ grid_point1[Geom::X] = boundingbox_X.max();
+ grid_point1[Geom::Y] = boundingbox_Y.min();
+
+ grid_point2[Geom::X] = boundingbox_X.min();
+ grid_point2[Geom::Y] = boundingbox_Y.max();
+
+ grid_point3[Geom::X] = boundingbox_X.max();
+ grid_point3[Geom::Y] = boundingbox_Y.max();
+
+ grid_point4[Geom::X] = 1.0/3*boundingbox_X.max()+2.0/3*boundingbox_X.min();
+ grid_point4[Geom::Y] = boundingbox_Y.min();
+
+ grid_point5[Geom::X] = 2.0/3*boundingbox_X.max()+1.0/3*boundingbox_X.min();
+ grid_point5[Geom::Y] = boundingbox_Y.min();
+
+ grid_point6[Geom::X] = 1.0/3*boundingbox_X.max()+2.0/3*boundingbox_X.min();
+ grid_point6[Geom::Y] = boundingbox_Y.max();
+
+ grid_point7[Geom::X] = 2.0/3*boundingbox_X.max()+1.0/3*boundingbox_X.min();
+ grid_point7[Geom::Y] = boundingbox_Y.max();
+
+ grid_point8[Geom::X] = boundingbox_X.min();
+ grid_point8[Geom::Y] = 1.0/3*boundingbox_Y.max()+2.0/3*boundingbox_Y.min();
+
+ grid_point9[Geom::X] = boundingbox_X.max();
+ grid_point9[Geom::Y] = 1.0/3*boundingbox_Y.max()+2.0/3*boundingbox_Y.min();
+
+ grid_point10[Geom::X] = boundingbox_X.min();
+ grid_point10[Geom::Y] = 2.0/3*boundingbox_Y.max()+1.0/3*boundingbox_Y.min();
+
+ grid_point11[Geom::X] = boundingbox_X.max();
+ grid_point11[Geom::Y] = 2.0/3*boundingbox_Y.max()+1.0/3*boundingbox_Y.min();
+
+ grid_point12[Geom::X] = 1.0/3*boundingbox_X.max()+2.0/3*boundingbox_X.min();
+ grid_point12[Geom::Y] = 1.0/3*boundingbox_Y.max()+2.0/3*boundingbox_Y.min();
+
+ grid_point13[Geom::X] = 2.0/3*boundingbox_X.max()+1.0/3*boundingbox_X.min();
+ grid_point13[Geom::Y] = 1.0/3*boundingbox_Y.max()+2.0/3*boundingbox_Y.min();
+
+ grid_point14[Geom::X] = 1.0/3*boundingbox_X.max()+2.0/3*boundingbox_X.min();
+ grid_point14[Geom::Y] = 2.0/3*boundingbox_Y.max()+1.0/3*boundingbox_Y.min();
+
+ grid_point15[Geom::X] = 2.0/3*boundingbox_X.max()+1.0/3*boundingbox_X.min();
+ grid_point15[Geom::Y] = 2.0/3*boundingbox_Y.max()+1.0/3*boundingbox_Y.min();
+
+
+
+}
+
+/* ######################## */
+
+} //namespace LivePathEffect
+} /* namespace Inkscape */
+
+/*
+ Local Variables:
+ mode:c++
+ c-file-style:"stroustrup"
+ c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
+ indent-tabs-mode:nil
+ fill-column:99
+ End:
+*/
+// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :
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