Kstars

lambertprojector.cpp
1 /*
2  SPDX-FileCopyrightText: 2010 Henry de Valence <[email protected]>
3 
4  SPDX-License-Identifier: GPL-2.0-or-later
5 */
6 
7 #include "lambertprojector.h"
8 
9 LambertProjector::LambertProjector(const ViewParams &p) : Projector(p)
10 {
11  updateClipPoly();
12 }
13 
14 Projector::Projection LambertProjector::type() const
15 {
16  return Lambert;
17 }
18 
20 {
21  return 1.41421356;
22 }
23 
24 double LambertProjector::projectionK(double x) const
25 {
26  return sqrt(2.0 / (1.0 + x));
27 }
28 
29 double LambertProjector::projectionL(double x) const
30 {
31  return 2.0 * asin(0.5 * x);
32 }
double radius() const override
Get the radius of this projection's sky circle.
Projection type() const override
Return the type of this projection.
double projectionL(double x) const override
This function handles some of the projection-specific code.
double projectionK(double x) const override
This function handles some of the projection-specific code.
This is just a container that holds information needed to do projections.
Definition: projector.h:36
This file is part of the KDE documentation.
Documentation copyright © 1996-2022 The KDE developers.
Generated on Mon Aug 8 2022 04:13:22 by doxygen 1.8.17 written by Dimitri van Heesch, © 1997-2006

KDE's Doxygen guidelines are available online.