// SPDX-License-Identifier: GPL-2.0-or-later /** * @file * LPE effect that draws a circle based on two points and a radius. * - implementation */ /* Authors: * Johan Engelen * * Copyright (C) 2007 Authors * * Released under GNU GPL v2+, read the file 'COPYING' for more information. */ #include "live_effects/lpe-circle_with_radius.h" #include "display/curve.h" // You might need to include other 2geom files. You can add them here: #include <2geom/circle.h> #include <2geom/path-sink.h> // TODO due to internal breakage in glibmm headers, this must be last: #include using namespace Geom; namespace Inkscape { namespace LivePathEffect { LPECircleWithRadius::LPECircleWithRadius(LivePathEffectObject *lpeobject) : Effect(lpeobject)//, // initialise your parameters here: //radius(_("Float parameter"), _("just a real number like 1.4!"), "svgname", &wr, this, 50) { // register all your parameters here, so Inkscape knows which parameters this effect has: //registerParameter( dynamic_cast(&radius) ); } LPECircleWithRadius::~LPECircleWithRadius() = default; Geom::PathVector LPECircleWithRadius::doEffect_path (Geom::PathVector const & path_in) { Geom::PathVector path_out = Geom::PathVector(); Geom::Point center = path_in[0].initialPoint(); Geom::Point pt = path_in[0].finalPoint(); double radius = Geom::L2(pt - center); Geom::Circle c(center, radius); return Geom::Path(c); } /* Geom::Piecewise > LPECircleWithRadius::doEffect_pwd2 (Geom::Piecewise > & pwd2_in) { Geom::Piecewise > output; output = pwd2_in; // spice this up to make the effect actually *do* something! return output; } */ /* ######################## */ } //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:fileencoding=utf-8:textwidth=99 :